./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ba0922fbaee541ed4ded1889d0ea25cfcdd1e879f7757f1ef1aa76d5475dafa --- 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-38b53e6 [2022-11-25 17:17:46,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:17:46,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:17:46,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:17:46,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:17:46,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:17:46,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:17:46,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:17:46,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:17:46,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:17:46,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:17:46,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:17:46,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:17:46,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:17:46,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:17:46,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:17:46,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:17:46,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:17:46,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:17:46,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:17:46,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:17:46,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:17:46,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:17:46,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:17:46,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:17:46,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:17:46,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:17:46,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:17:46,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:17:46,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:17:46,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:17:46,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:17:46,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:17:46,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:17:46,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:17:46,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:17:46,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:17:46,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:17:46,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:17:46,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:17:46,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:17:46,257 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:17:46,292 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:17:46,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:17:46,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:17:46,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:17:46,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:17:46,295 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:17:46,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:17:46,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:17:46,296 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:17:46,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:17:46,297 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:17:46,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:17:46,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:17:46,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:17:46,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:17:46,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:17:46,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:17:46,298 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:17:46,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:17:46,299 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:17:46,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:17:46,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:17:46,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:17:46,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:17:46,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:17:46,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:17:46,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:17:46,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:17:46,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:17:46,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:17:46,301 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:17:46,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:17:46,302 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:17:46,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:17:46,302 INFO L138 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_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ba0922fbaee541ed4ded1889d0ea25cfcdd1e879f7757f1ef1aa76d5475dafa [2022-11-25 17:17:46,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:17:46,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:17:46,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:17:46,608 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:17:46,609 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:17:46,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c [2022-11-25 17:17:49,688 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:17:49,965 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:17:49,965 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c [2022-11-25 17:17:49,973 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/data/9fc035f4f/aef781aefbbe4e8f8083f25919ddb77e/FLAG6b726d56d [2022-11-25 17:17:49,988 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/data/9fc035f4f/aef781aefbbe4e8f8083f25919ddb77e [2022-11-25 17:17:49,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:17:49,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:17:49,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:17:49,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:17:49,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:17:49,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:17:49" (1/1) ... [2022-11-25 17:17:49,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6394da2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:49, skipping insertion in model container [2022-11-25 17:17:50,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:17:49" (1/1) ... [2022-11-25 17:17:50,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:17:50,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:17:50,177 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_dc94e203-aba0-4bb6-b554-5fae553917dc/sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c[1999,2012] [2022-11-25 17:17:50,183 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_dc94e203-aba0-4bb6-b554-5fae553917dc/sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c[2393,2406] [2022-11-25 17:17:50,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:17:50,240 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:17:50,254 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_dc94e203-aba0-4bb6-b554-5fae553917dc/sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c[1999,2012] [2022-11-25 17:17:50,256 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_dc94e203-aba0-4bb6-b554-5fae553917dc/sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c[2393,2406] [2022-11-25 17:17:50,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:17:50,301 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:17:50,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50 WrapperNode [2022-11-25 17:17:50,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:17:50,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:17:50,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:17:50,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:17:50,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,341 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2022-11-25 17:17:50,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:17:50,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:17:50,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:17:50,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:17:50,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,388 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:17:50,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:17:50,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:17:50,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:17:50,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (1/1) ... [2022-11-25 17:17:50,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:17:50,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:17:50,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:17:50,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:17:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:17:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-25 17:17:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-25 17:17:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-11-25 17:17:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-11-25 17:17:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:17:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:17:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:17:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 17:17:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 17:17:50,568 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:17:50,571 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:17:50,994 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:17:51,002 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:17:51,002 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:17:51,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:17:51 BoogieIcfgContainer [2022-11-25 17:17:51,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:17:51,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:17:51,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:17:51,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:17:51,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:17:49" (1/3) ... [2022-11-25 17:17:51,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4c6739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:17:51, skipping insertion in model container [2022-11-25 17:17:51,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:50" (2/3) ... [2022-11-25 17:17:51,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4c6739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:17:51, skipping insertion in model container [2022-11-25 17:17:51,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:17:51" (3/3) ... [2022-11-25 17:17:51,013 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_4-2a.c.cil.c [2022-11-25 17:17:51,035 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:17:51,035 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:17:51,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:17:51,098 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=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;@46735570, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:17:51,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:17:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 71 states have (on average 1.5633802816901408) internal successors, (111), 73 states have internal predecessors, (111), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:17:51,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 17:17:51,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:17:51,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:17:51,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:17:51,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:17:51,123 INFO L85 PathProgramCache]: Analyzing trace with hash -929888677, now seen corresponding path program 1 times [2022-11-25 17:17:51,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:17:51,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948434665] [2022-11-25 17:17:51,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:17:51,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:17:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:17:51,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:17:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:17:51,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:17:51,335 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:17:51,337 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-25 17:17:51,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-25 17:17:51,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:17:51,344 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:17:51,349 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:17:51,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:17:51 BoogieIcfgContainer [2022-11-25 17:17:51,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:17:51,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:17:51,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:17:51,392 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:17:51,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:17:51" (3/4) ... [2022-11-25 17:17:51,399 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:17:51,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:17:51,400 INFO L158 Benchmark]: Toolchain (without parser) took 1408.44ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 99.7MB in the beginning and 141.2MB in the end (delta: -41.5MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-11-25 17:17:51,401 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 130.0MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:17:51,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.94ms. Allocated memory is still 130.0MB. Free memory was 99.7MB in the beginning and 85.6MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 17:17:51,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.61ms. Allocated memory is still 130.0MB. Free memory was 85.6MB in the beginning and 83.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:17:51,408 INFO L158 Benchmark]: Boogie Preprocessor took 50.50ms. Allocated memory is still 130.0MB. Free memory was 83.9MB in the beginning and 82.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:17:51,410 INFO L158 Benchmark]: RCFGBuilder took 611.09ms. Allocated memory is still 130.0MB. Free memory was 82.1MB in the beginning and 62.5MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 17:17:51,411 INFO L158 Benchmark]: TraceAbstraction took 382.12ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 62.1MB in the beginning and 141.2MB in the end (delta: -79.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:17:51,412 INFO L158 Benchmark]: Witness Printer took 7.58ms. Allocated memory is still 174.1MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:17:51,415 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 130.0MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.94ms. Allocated memory is still 130.0MB. Free memory was 99.7MB in the beginning and 85.6MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.61ms. Allocated memory is still 130.0MB. Free memory was 85.6MB in the beginning and 83.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.50ms. Allocated memory is still 130.0MB. Free memory was 83.9MB in the beginning and 82.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 611.09ms. Allocated memory is still 130.0MB. Free memory was 82.1MB in the beginning and 62.5MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 382.12ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 62.1MB in the beginning and 141.2MB in the end (delta: -79.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.58ms. Allocated memory is still 174.1MB. Free memory is still 141.2MB. 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: [L310] COND TRUE __VERIFIER_nondet_int() [L311] 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=53, x=53] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 61]: 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 4 procedures, 85 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=85occurred 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, 7 NumberOfCodeBlocks, 7 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 [2022-11-25 17:17:51,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ba0922fbaee541ed4ded1889d0ea25cfcdd1e879f7757f1ef1aa76d5475dafa --- 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-38b53e6 [2022-11-25 17:17:53,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:17:53,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:17:54,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:17:54,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:17:54,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:17:54,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:17:54,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:17:54,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:17:54,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:17:54,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:17:54,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:17:54,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:17:54,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:17:54,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:17:54,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:17:54,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:17:54,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:17:54,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:17:54,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:17:54,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:17:54,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:17:54,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:17:54,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:17:54,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:17:54,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:17:54,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:17:54,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:17:54,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:17:54,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:17:54,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:17:54,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:17:54,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:17:54,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:17:54,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:17:54,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:17:54,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:17:54,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:17:54,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:17:54,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:17:54,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:17:54,103 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-25 17:17:54,145 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:17:54,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:17:54,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:17:54,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:17:54,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:17:54,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:17:54,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:17:54,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:17:54,149 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:17:54,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:17:54,150 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:17:54,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:17:54,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:17:54,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:17:54,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:17:54,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:17:54,151 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:17:54,152 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:17:54,152 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:17:54,152 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:17:54,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:17:54,152 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:17:54,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:17:54,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:17:54,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:17:54,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:17:54,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:17:54,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:17:54,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:17:54,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:17:54,154 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:17:54,154 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:17:54,155 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:17:54,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:17:54,155 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:17:54,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:17:54,155 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:17:54,156 INFO L138 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_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ba0922fbaee541ed4ded1889d0ea25cfcdd1e879f7757f1ef1aa76d5475dafa [2022-11-25 17:17:54,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:17:54,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:17:54,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:17:54,587 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:17:54,588 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:17:54,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c [2022-11-25 17:17:57,807 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:17:58,064 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:17:58,065 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c [2022-11-25 17:17:58,081 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/data/ce92697b4/fce7f31c2d4a4b21ad92bbf5470d1113/FLAG17884732d [2022-11-25 17:17:58,107 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/data/ce92697b4/fce7f31c2d4a4b21ad92bbf5470d1113 [2022-11-25 17:17:58,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:17:58,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:17:58,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:17:58,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:17:58,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:17:58,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:17:58" (1/1) ... [2022-11-25 17:17:58,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ef48ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58, skipping insertion in model container [2022-11-25 17:17:58,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:17:58" (1/1) ... [2022-11-25 17:17:58,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:17:58,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:17:58,385 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_dc94e203-aba0-4bb6-b554-5fae553917dc/sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c[1999,2012] [2022-11-25 17:17:58,394 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_dc94e203-aba0-4bb6-b554-5fae553917dc/sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c[2393,2406] [2022-11-25 17:17:58,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:17:58,486 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:17:58,511 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_dc94e203-aba0-4bb6-b554-5fae553917dc/sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c[1999,2012] [2022-11-25 17:17:58,519 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_dc94e203-aba0-4bb6-b554-5fae553917dc/sv-benchmarks/c/combinations/square_3+soft_float_4-2a.c.cil.c[2393,2406] [2022-11-25 17:17:58,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:17:58,574 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:17:58,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58 WrapperNode [2022-11-25 17:17:58,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:17:58,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:17:58,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:17:58,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:17:58,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58" (1/1) ... [2022-11-25 17:17:58,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58" (1/1) ... [2022-11-25 17:17:58,644 INFO L138 Inliner]: procedures = 28, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2022-11-25 17:17:58,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:17:58,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:17:58,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:17:58,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:17:58,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58" (1/1) ... [2022-11-25 17:17:58,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58" (1/1) ... [2022-11-25 17:17:58,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58" (1/1) ... [2022-11-25 17:17:58,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58" (1/1) ... [2022-11-25 17:17:58,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58" (1/1) ... [2022-11-25 17:17:58,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58" (1/1) ... [2022-11-25 17:17:58,690 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58" (1/1) ... [2022-11-25 17:17:58,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58" (1/1) ... [2022-11-25 17:17:58,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:17:58,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:17:58,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:17:58,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:17:58,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58" (1/1) ... [2022-11-25 17:17:58,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:17:58,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:17:58,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:17:58,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:17:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:17:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:17:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-25 17:17:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-25 17:17:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-11-25 17:17:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-11-25 17:17:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:17:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:17:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 17:17:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 17:17:58,898 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:17:58,900 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:18:01,365 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:18:01,372 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:18:01,372 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:18:01,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:18:01 BoogieIcfgContainer [2022-11-25 17:18:01,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:18:01,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:18:01,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:18:01,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:18:01,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:17:58" (1/3) ... [2022-11-25 17:18:01,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d32c5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:18:01, skipping insertion in model container [2022-11-25 17:18:01,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:17:58" (2/3) ... [2022-11-25 17:18:01,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d32c5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:18:01, skipping insertion in model container [2022-11-25 17:18:01,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:18:01" (3/3) ... [2022-11-25 17:18:01,382 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_4-2a.c.cil.c [2022-11-25 17:18:01,402 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:18:01,402 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:18:01,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:18:01,459 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=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;@5a341744, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:18:01,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:18:01,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 49 states have (on average 1.489795918367347) internal successors, (73), 51 states have internal predecessors, (73), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 17:18:01,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 17:18:01,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:01,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:01,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:18:01,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:01,483 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-11-25 17:18:01,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:18:01,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900514602] [2022-11-25 17:18:01,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:01,497 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 [2022-11-25 17:18:01,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:18:01,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:18:01,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:18:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:02,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 17:18:02,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:18:02,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:02,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:18:02,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:18:02,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900514602] [2022-11-25 17:18:02,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900514602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:02,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:02,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:18:02,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11341693] [2022-11-25 17:18:02,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:02,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:18:02,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:18:02,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:18:02,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:18:02,310 INFO L87 Difference]: Start difference. First operand has 63 states, 49 states have (on average 1.489795918367347) internal successors, (73), 51 states have internal predecessors, (73), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) 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) [2022-11-25 17:18:02,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:02,353 INFO L93 Difference]: Finished difference Result 121 states and 178 transitions. [2022-11-25 17:18:02,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:18:02,356 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 [2022-11-25 17:18:02,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:02,364 INFO L225 Difference]: With dead ends: 121 [2022-11-25 17:18:02,364 INFO L226 Difference]: Without dead ends: 56 [2022-11-25 17:18:02,368 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 [2022-11-25 17:18:02,371 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 [2022-11-25 17:18:02,372 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] [2022-11-25 17:18:02,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-25 17:18:02,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-25 17:18:02,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 45 states have internal predecessors, (58), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-25 17:18:02,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 73 transitions. [2022-11-25 17:18:02,413 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 73 transitions. Word has length 7 [2022-11-25 17:18:02,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:02,413 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 73 transitions. [2022-11-25 17:18:02,414 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) [2022-11-25 17:18:02,414 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 73 transitions. [2022-11-25 17:18:02,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 17:18:02,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:02,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:02,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:18:02,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:18:02,619 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:18:02,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:02,620 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-11-25 17:18:02,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:18:02,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186797336] [2022-11-25 17:18:02,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:02,621 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 [2022-11-25 17:18:02,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:18:02,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:18:02,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:19:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:19:04,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:21:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:21:43,157 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 17:21:43,158 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:21:43,159 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-25 17:21:43,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-25 17:21:43,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:21:43,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:21:43,366 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:21:43,370 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:21:43,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:21:43 BoogieIcfgContainer [2022-11-25 17:21:43,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:21:43,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:21:43,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:21:43,392 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:21:43,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:18:01" (3/4) ... [2022-11-25 17:21:43,394 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 17:21:43,425 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:21:43,425 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:21:43,426 INFO L158 Benchmark]: Toolchain (without parser) took 225315.34ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 50.9MB in the beginning and 57.8MB in the end (delta: -6.8MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2022-11-25 17:21:43,426 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 73.4MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:21:43,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.40ms. Allocated memory is still 73.4MB. Free memory was 50.7MB in the beginning and 36.6MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:21:43,428 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.23ms. Allocated memory is still 73.4MB. Free memory was 36.6MB in the beginning and 34.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:21:43,428 INFO L158 Benchmark]: Boogie Preprocessor took 48.33ms. Allocated memory is still 73.4MB. Free memory was 34.6MB in the beginning and 32.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:21:43,429 INFO L158 Benchmark]: RCFGBuilder took 2678.22ms. Allocated memory is still 73.4MB. Free memory was 32.9MB in the beginning and 42.6MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 17:21:43,429 INFO L158 Benchmark]: TraceAbstraction took 222014.48ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 42.0MB in the beginning and 59.9MB in the end (delta: -17.9MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2022-11-25 17:21:43,430 INFO L158 Benchmark]: Witness Printer took 34.07ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 57.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:21:43,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 73.4MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 463.40ms. Allocated memory is still 73.4MB. Free memory was 50.7MB in the beginning and 36.6MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.23ms. Allocated memory is still 73.4MB. Free memory was 36.6MB in the beginning and 34.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.33ms. Allocated memory is still 73.4MB. Free memory was 34.6MB in the beginning and 32.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2678.22ms. Allocated memory is still 73.4MB. Free memory was 32.9MB in the beginning and 42.6MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 222014.48ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 42.0MB in the beginning and 59.9MB in the end (delta: -17.9MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Witness Printer took 34.07ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 57.8MB 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: [L310] COND TRUE __VERIFIER_nondet_int() [L311] 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=0.9999997615814209, result=1.3984375, x=0.9999997615814209] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999997615814209, result=1.3984375, x=0.9999997615814209] [L48] reach_error() VAL [IN=0.9999997615814209, result=1.3984375, x=0.9999997615814209] - UnprovableResult [Line: 61]: 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 4 procedures, 63 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 221.9s, 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=63occurred 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, 62.4s SatisfiabilityAnalysisTime, 0.0s 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! [2022-11-25 17:21:43,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc94e203-aba0-4bb6-b554-5fae553917dc/bin/uautomizer-ZsLfNo2U6R/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