./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --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 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:09:13,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:09:13,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:09:13,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:09:13,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:09:13,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:09:13,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:09:13,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:09:13,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:09:13,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:09:13,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:09:13,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:09:13,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:09:13,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:09:13,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:09:13,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:09:13,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:09:13,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:09:13,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:09:13,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:09:13,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:09:13,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:09:13,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:09:13,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:09:13,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:09:13,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:09:13,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:09:13,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:09:13,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:09:13,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:09:13,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:09:13,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:09:13,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:09:13,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:09:13,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:09:13,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:09:13,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:09:13,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:09:13,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:09:13,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:09:13,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:09:13,284 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:09:13,306 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:09:13,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:09:13,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:09:13,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:09:13,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:09:13,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:09:13,309 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:09:13,309 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:09:13,309 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:09:13,310 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:09:13,310 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:09:13,310 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:09:13,310 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:09:13,311 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:09:13,311 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:09:13,311 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:09:13,312 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:09:13,312 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:09:13,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:09:13,313 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:09:13,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:09:13,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:09:13,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:09:13,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:09:13,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:09:13,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:09:13,315 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:09:13,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:09:13,316 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:09:13,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:09:13,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:09:13,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:09:13,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:13,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:09:13,317 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:09:13,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:09:13,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:09:13,318 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:09:13,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:09:13,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:09:13,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:09:13,319 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 [2022-11-22 01:09:13,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:09:13,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:09:13,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:09:13,676 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:09:13,677 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:09:13,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-11-22 01:09:16,799 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:09:17,032 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:09:17,033 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-11-22 01:09:17,042 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/data/704e5a1ef/5599a9b1172b4bb29f1ea6966fdf5d89/FLAGd32719c33 [2022-11-22 01:09:17,058 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/data/704e5a1ef/5599a9b1172b4bb29f1ea6966fdf5d89 [2022-11-22 01:09:17,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:09:17,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:09:17,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:17,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:09:17,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:09:17,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:17" (1/1) ... [2022-11-22 01:09:17,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0814e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17, skipping insertion in model container [2022-11-22 01:09:17,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:17" (1/1) ... [2022-11-22 01:09:17,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:09:17,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:09:17,308 WARN L237 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_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2022-11-22 01:09:17,318 WARN L237 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_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2022-11-22 01:09:17,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:17,427 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:09:17,444 WARN L237 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_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2022-11-22 01:09:17,446 WARN L237 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_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2022-11-22 01:09:17,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:17,518 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:09:17,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17 WrapperNode [2022-11-22 01:09:17,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:17,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:17,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:09:17,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:09:17,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17" (1/1) ... [2022-11-22 01:09:17,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17" (1/1) ... [2022-11-22 01:09:17,589 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 187 [2022-11-22 01:09:17,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:17,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:09:17,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:09:17,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:09:17,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17" (1/1) ... [2022-11-22 01:09:17,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17" (1/1) ... [2022-11-22 01:09:17,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17" (1/1) ... [2022-11-22 01:09:17,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17" (1/1) ... [2022-11-22 01:09:17,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17" (1/1) ... [2022-11-22 01:09:17,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17" (1/1) ... [2022-11-22 01:09:17,639 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17" (1/1) ... [2022-11-22 01:09:17,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17" (1/1) ... [2022-11-22 01:09:17,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:09:17,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:09:17,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:09:17,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:09:17,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17" (1/1) ... [2022-11-22 01:09:17,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:17,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:17,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:09:17,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:09:17,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:09:17,754 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-22 01:09:17,754 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-22 01:09:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:09:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:09:17,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:09:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:09:17,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:09:17,878 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:09:17,880 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:09:18,551 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:09:18,985 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:09:18,987 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:09:18,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:18 BoogieIcfgContainer [2022-11-22 01:09:18,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:09:18,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:09:18,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:09:18,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:09:18,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:09:17" (1/3) ... [2022-11-22 01:09:19,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c009be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:18, skipping insertion in model container [2022-11-22 01:09:19,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:17" (2/3) ... [2022-11-22 01:09:19,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c009be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:19, skipping insertion in model container [2022-11-22 01:09:19,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:18" (3/3) ... [2022-11-22 01:09:19,005 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_3a.c.cil.c [2022-11-22 01:09:19,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:09:19,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 01:09:19,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:09:19,119 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7684bc84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:09:19,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 01:09:19,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 38 states have internal predecessors, (55), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 01:09:19,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:09:19,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:19,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:09:19,139 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:09:19,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:19,148 INFO L85 PathProgramCache]: Analyzing trace with hash 10071630, now seen corresponding path program 1 times [2022-11-22 01:09:19,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:19,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056515918] [2022-11-22 01:09:19,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:19,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:09:19,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:09:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:09:19,358 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:09:19,361 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:09:19,363 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-22 01:09:19,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-22 01:09:19,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:09:19,377 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 01:09:19,383 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:09:19,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:09:19 BoogieIcfgContainer [2022-11-22 01:09:19,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:09:19,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:09:19,421 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:09:19,422 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:09:19,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:18" (3/4) ... [2022-11-22 01:09:19,427 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:09:19,428 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:09:19,429 INFO L158 Benchmark]: Toolchain (without parser) took 2365.53ms. Allocated memory is still 125.8MB. Free memory was 73.0MB in the beginning and 78.6MB in the end (delta: -5.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:09:19,430 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:09:19,431 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.97ms. Allocated memory is still 125.8MB. Free memory was 72.8MB in the beginning and 95.3MB in the end (delta: -22.5MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-11-22 01:09:19,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.72ms. Allocated memory is still 125.8MB. Free memory was 94.8MB in the beginning and 92.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:09:19,434 INFO L158 Benchmark]: Boogie Preprocessor took 54.53ms. Allocated memory is still 125.8MB. Free memory was 92.7MB in the beginning and 91.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:09:19,441 INFO L158 Benchmark]: RCFGBuilder took 1344.63ms. Allocated memory is still 125.8MB. Free memory was 91.1MB in the beginning and 93.2MB in the end (delta: -2.2MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2022-11-22 01:09:19,443 INFO L158 Benchmark]: TraceAbstraction took 425.04ms. Allocated memory is still 125.8MB. Free memory was 93.0MB in the beginning and 79.2MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 01:09:19,443 INFO L158 Benchmark]: Witness Printer took 6.64ms. Allocated memory is still 125.8MB. Free memory was 79.2MB in the beginning and 78.6MB in the end (delta: 632.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:09:19,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.97ms. Allocated memory is still 125.8MB. Free memory was 72.8MB in the beginning and 95.3MB in the end (delta: -22.5MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.72ms. Allocated memory is still 125.8MB. Free memory was 94.8MB in the beginning and 92.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.53ms. Allocated memory is still 125.8MB. Free memory was 92.7MB in the beginning and 91.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1344.63ms. Allocated memory is still 125.8MB. Free memory was 91.1MB in the beginning and 93.2MB in the end (delta: -2.2MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. * TraceAbstraction took 425.04ms. Allocated memory is still 125.8MB. Free memory was 93.0MB in the beginning and 79.2MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 6.64ms. Allocated memory is still 125.8MB. Free memory was 79.2MB in the beginning and 78.6MB in the end (delta: 632.6kB). 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: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=53, x=53] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=45occurred 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, 4 NumberOfCodeBlocks, 4 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 [2022-11-22 01:09:19,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/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_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --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 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:09:22,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:09:22,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:09:22,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:09:22,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:09:22,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:09:22,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:09:22,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:09:22,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:09:22,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:09:22,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:09:22,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:09:22,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:09:22,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:09:22,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:09:22,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:09:22,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:09:22,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:09:22,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:09:22,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:09:22,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:09:22,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:09:22,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:09:22,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:09:22,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:09:22,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:09:22,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:09:22,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:09:22,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:09:22,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:09:22,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:09:22,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:09:22,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:09:22,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:09:22,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:09:22,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:09:22,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:09:22,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:09:22,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:09:22,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:09:22,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:09:22,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-22 01:09:22,511 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:09:22,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:09:22,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:09:22,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:09:22,519 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:09:22,520 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:09:22,520 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:09:22,520 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:09:22,521 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:09:22,521 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:09:22,522 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:09:22,523 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:09:22,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:09:22,524 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:09:22,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:09:22,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:09:22,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:09:22,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:09:22,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:09:22,526 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:09:22,526 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:09:22,526 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:09:22,526 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:09:22,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:09:22,527 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:09:22,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:09:22,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:09:22,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:09:22,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:09:22,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:22,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:09:22,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:09:22,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:09:22,529 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:09:22,530 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:09:22,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:09:22,530 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:09:22,530 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:09:22,531 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 [2022-11-22 01:09:22,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:09:23,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:09:23,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:09:23,015 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:09:23,015 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:09:23,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-11-22 01:09:26,644 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:09:26,912 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:09:26,913 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-11-22 01:09:26,922 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/data/8b889b22f/c99f07ccbd68420b800b38c4bdef9d5f/FLAG24db9882a [2022-11-22 01:09:26,937 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/data/8b889b22f/c99f07ccbd68420b800b38c4bdef9d5f [2022-11-22 01:09:26,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:09:26,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:09:26,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:26,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:09:26,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:09:26,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:26" (1/1) ... [2022-11-22 01:09:26,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d606e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:26, skipping insertion in model container [2022-11-22 01:09:26,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:26" (1/1) ... [2022-11-22 01:09:26,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:09:26,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:09:27,186 WARN L237 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_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2022-11-22 01:09:27,193 WARN L237 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_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2022-11-22 01:09:27,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:27,257 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:09:27,278 WARN L237 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_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2022-11-22 01:09:27,280 WARN L237 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_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2022-11-22 01:09:27,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:27,397 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:09:27,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:27 WrapperNode [2022-11-22 01:09:27,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:27,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:27,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:09:27,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:09:27,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:27" (1/1) ... [2022-11-22 01:09:27,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:27" (1/1) ... [2022-11-22 01:09:27,492 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-11-22 01:09:27,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:27,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:09:27,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:09:27,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:09:27,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:27" (1/1) ... [2022-11-22 01:09:27,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:27" (1/1) ... [2022-11-22 01:09:27,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:27" (1/1) ... [2022-11-22 01:09:27,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:27" (1/1) ... [2022-11-22 01:09:27,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:27" (1/1) ... [2022-11-22 01:09:27,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:27" (1/1) ... [2022-11-22 01:09:27,567 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:27" (1/1) ... [2022-11-22 01:09:27,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:27" (1/1) ... [2022-11-22 01:09:27,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:09:27,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:09:27,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:09:27,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:09:27,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:27" (1/1) ... [2022-11-22 01:09:27,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:27,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:27,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:09:27,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:09:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:09:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 01:09:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-22 01:09:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-22 01:09:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:09:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:09:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:09:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:09:27,826 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:09:27,829 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:09:30,512 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:09:30,522 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:09:30,523 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:09:30,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:30 BoogieIcfgContainer [2022-11-22 01:09:30,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:09:30,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:09:30,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:09:30,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:09:30,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:09:26" (1/3) ... [2022-11-22 01:09:30,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbf650d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:30, skipping insertion in model container [2022-11-22 01:09:30,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:27" (2/3) ... [2022-11-22 01:09:30,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbf650d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:30, skipping insertion in model container [2022-11-22 01:09:30,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:30" (3/3) ... [2022-11-22 01:09:30,537 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_3a.c.cil.c [2022-11-22 01:09:30,555 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:09:30,555 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 01:09:30,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:09:30,637 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6c9c9048, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:09:30,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 01:09:30,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 01:09:30,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:09:30,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:30,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:30,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:09:30,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:30,659 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-11-22 01:09:30,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:09:30,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127221489] [2022-11-22 01:09:30,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:30,677 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 [2022-11-22 01:09:30,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:09:30,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:09:30,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:09:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:31,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-22 01:09:31,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:31,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:31,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:09:31,392 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:09:31,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127221489] [2022-11-22 01:09:31,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127221489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:31,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:09:31,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:09:31,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722216597] [2022-11-22 01:09:31,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:31,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:09:31,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:09:31,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:09:31,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:09:31,457 INFO L87 Difference]: Start difference. First operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 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) [2022-11-22 01:09:31,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:31,496 INFO L93 Difference]: Finished difference Result 115 states and 173 transitions. [2022-11-22 01:09:31,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:09:31,499 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 [2022-11-22 01:09:31,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:31,509 INFO L225 Difference]: With dead ends: 115 [2022-11-22 01:09:31,511 INFO L226 Difference]: Without dead ends: 51 [2022-11-22 01:09:31,517 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 [2022-11-22 01:09:31,525 INFO L413 NwaCegarLoop]: 81 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, 81 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 [2022-11-22 01:09:31,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:09:31,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-22 01:09:31,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-22 01:09:31,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:09:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-11-22 01:09:31,601 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2022-11-22 01:09:31,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:31,603 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-11-22 01:09:31,604 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) [2022-11-22 01:09:31,604 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-11-22 01:09:31,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:09:31,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:31,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:31,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:09:31,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:09:31,830 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:09:31,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:31,831 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-11-22 01:09:31,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:09:31,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130966839] [2022-11-22 01:09:31,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:31,832 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 [2022-11-22 01:09:31,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:09:31,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:09:31,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:11:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:11:13,588 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:11:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:11:33,594 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-22 01:11:33,594 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:11:33,596 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-22 01:11:33,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-22 01:11:33,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:11:33,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:11:33,804 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 01:11:33,809 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:11:33,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:11:33 BoogieIcfgContainer [2022-11-22 01:11:33,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:11:33,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:11:33,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:11:33,847 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:11:33,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:30" (3/4) ... [2022-11-22 01:11:33,852 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 01:11:33,897 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:11:33,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:11:33,898 INFO L158 Benchmark]: Toolchain (without parser) took 126954.59ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 41.0MB in the beginning and 43.6MB in the end (delta: -2.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2022-11-22 01:11:33,899 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 69.2MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:11:33,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.60ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 40.8MB in the beginning and 66.1MB in the end (delta: -25.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 01:11:33,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.64ms. Allocated memory is still 88.1MB. Free memory was 66.1MB in the beginning and 64.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:11:33,901 INFO L158 Benchmark]: Boogie Preprocessor took 87.66ms. Allocated memory is still 88.1MB. Free memory was 64.0MB in the beginning and 62.2MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:11:33,902 INFO L158 Benchmark]: RCFGBuilder took 2940.89ms. Allocated memory is still 88.1MB. Free memory was 62.2MB in the beginning and 45.9MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 01:11:33,902 INFO L158 Benchmark]: TraceAbstraction took 123313.01ms. Allocated memory is still 88.1MB. Free memory was 45.1MB in the beginning and 45.7MB in the end (delta: -584.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:11:33,903 INFO L158 Benchmark]: Witness Printer took 55.81ms. Allocated memory is still 88.1MB. Free memory was 45.4MB in the beginning and 43.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:11:33,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 69.2MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.60ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 40.8MB in the beginning and 66.1MB in the end (delta: -25.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.64ms. Allocated memory is still 88.1MB. Free memory was 66.1MB in the beginning and 64.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 87.66ms. Allocated memory is still 88.1MB. Free memory was 64.0MB in the beginning and 62.2MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2940.89ms. Allocated memory is still 88.1MB. Free memory was 62.2MB in the beginning and 45.9MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 123313.01ms. Allocated memory is still 88.1MB. Free memory was 45.1MB in the beginning and 45.7MB in the end (delta: -584.2kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 55.81ms. Allocated memory is still 88.1MB. Free memory was 45.4MB in the beginning and 43.6MB in the end (delta: 1.7MB). 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: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9937272071838379, result=1.3966666460037231, x=0.9937272071838379] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=0.9937272071838379, result=1.3966666460037231, x=0.9937272071838379] [L48] reach_error() VAL [IN=0.9937272071838379, result=1.3966666460037231, x=0.9937272071838379] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 123.2s, 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, 81 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, 81 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=60occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 102.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 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! [2022-11-22 01:11:33,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f165db06-ba62-47c4-bceb-0fd9e9afb0aa/bin/utaipan-g80aRyZoba/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