./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI --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 31369bad6f1c83c546d17a52fbf2014a6a82af248db1b4a737df8b889fc9cfdd --- 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-5e519f3 [2022-11-03 02:00:43,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:00:43,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:00:43,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:00:43,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:00:43,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:00:43,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:00:43,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:00:43,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:00:43,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:00:43,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:00:43,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:00:43,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:00:43,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:00:43,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:00:43,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:00:43,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:00:43,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:00:43,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:00:43,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:00:43,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:00:43,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:00:43,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:00:43,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:00:43,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:00:43,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:00:43,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:00:43,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:00:43,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:00:43,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:00:43,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:00:43,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:00:43,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:00:43,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:00:43,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:00:43,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:00:43,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:00:43,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:00:43,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:00:43,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:00:43,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:00:43,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:00:43,203 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:00:43,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:00:43,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:00:43,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:00:43,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:00:43,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:00:43,204 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:00:43,213 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:00:43,213 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:00:43,213 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:00:43,214 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:00:43,214 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:00:43,214 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:00:43,214 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:00:43,215 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:00:43,215 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:00:43,215 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:00:43,215 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:00:43,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:00:43,216 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:00:43,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:00:43,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:00:43,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:00:43,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:00:43,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:00:43,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:00:43,218 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:00:43,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:00:43,218 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:00:43,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:00:43,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:00:43,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:00:43,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:00:43,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:00:43,219 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:00:43,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:00:43,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:00:43,220 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:00:43,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:00:43,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:00:43,220 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:00:43,220 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_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31369bad6f1c83c546d17a52fbf2014a6a82af248db1b4a737df8b889fc9cfdd [2022-11-03 02:00:43,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:00:43,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:00:43,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:00:43,536 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:00:43,537 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:00:43,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c [2022-11-03 02:00:43,606 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/data/bd3d0f675/09c5a6ccfcfb403ca3490f6df484bf37/FLAGcac9f7069 [2022-11-03 02:00:44,151 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:00:44,151 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c [2022-11-03 02:00:44,159 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/data/bd3d0f675/09c5a6ccfcfb403ca3490f6df484bf37/FLAGcac9f7069 [2022-11-03 02:00:44,501 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/data/bd3d0f675/09c5a6ccfcfb403ca3490f6df484bf37 [2022-11-03 02:00:44,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:00:44,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:00:44,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:00:44,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:00:44,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:00:44,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:44" (1/1) ... [2022-11-03 02:00:44,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64695017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44, skipping insertion in model container [2022-11-03 02:00:44,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:44" (1/1) ... [2022-11-03 02:00:44,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:00:44,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:00:44,796 WARN L230 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_edde6483-8888-4240-9792-273769e6808f/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[1999,2012] [2022-11-03 02:00:44,802 WARN L230 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_edde6483-8888-4240-9792-273769e6808f/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[2368,2381] [2022-11-03 02:00:44,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:00:44,870 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:00:44,885 WARN L230 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_edde6483-8888-4240-9792-273769e6808f/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[1999,2012] [2022-11-03 02:00:44,886 WARN L230 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_edde6483-8888-4240-9792-273769e6808f/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[2368,2381] [2022-11-03 02:00:44,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:00:44,921 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:00:44,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44 WrapperNode [2022-11-03 02:00:44,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:00:44,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:00:44,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:00:44,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:00:44,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44" (1/1) ... [2022-11-03 02:00:44,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44" (1/1) ... [2022-11-03 02:00:44,964 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 133 [2022-11-03 02:00:44,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:00:44,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:00:44,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:00:44,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:00:44,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44" (1/1) ... [2022-11-03 02:00:44,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44" (1/1) ... [2022-11-03 02:00:44,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44" (1/1) ... [2022-11-03 02:00:44,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44" (1/1) ... [2022-11-03 02:00:44,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44" (1/1) ... [2022-11-03 02:00:44,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44" (1/1) ... [2022-11-03 02:00:44,988 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44" (1/1) ... [2022-11-03 02:00:44,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44" (1/1) ... [2022-11-03 02:00:44,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:00:44,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:00:44,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:00:44,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:00:44,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44" (1/1) ... [2022-11-03 02:00:45,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:00:45,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:00:45,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:00:45,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:00:45,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:00:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-03 02:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-03 02:00:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:00:45,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:00:45,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:00:45,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 02:00:45,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 02:00:45,198 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:00:45,201 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:00:45,518 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:00:45,588 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:00:45,593 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:00:45,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:45 BoogieIcfgContainer [2022-11-03 02:00:45,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:00:45,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:00:45,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:00:45,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:00:45,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:00:44" (1/3) ... [2022-11-03 02:00:45,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fe0146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:45, skipping insertion in model container [2022-11-03 02:00:45,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:44" (2/3) ... [2022-11-03 02:00:45,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fe0146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:45, skipping insertion in model container [2022-11-03 02:00:45,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:45" (3/3) ... [2022-11-03 02:00:45,609 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_3a.c.cil.c [2022-11-03 02:00:45,631 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:00:45,631 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-03 02:00:45,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:00:45,710 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;@2fe014c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:00:45,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-03 02:00:45,715 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) [2022-11-03 02:00:45,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:00:45,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:45,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:00:45,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:45,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:45,733 INFO L85 PathProgramCache]: Analyzing trace with hash 7112936, now seen corresponding path program 1 times [2022-11-03 02:00:45,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:00:45,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223443971] [2022-11-03 02:00:45,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:45,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:00:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:00:45,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:00:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:00:45,899 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:00:45,901 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:00:45,903 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-03 02:00:45,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-03 02:00:45,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:00:45,911 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 02:00:45,915 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:00:45,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:00:45 BoogieIcfgContainer [2022-11-03 02:00:45,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:00:45,936 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:00:45,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:00:45,937 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:00:45,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:45" (3/4) ... [2022-11-03 02:00:45,941 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 02:00:45,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:00:45,942 INFO L158 Benchmark]: Toolchain (without parser) took 1433.77ms. Allocated memory is still 102.8MB. Free memory was 63.3MB in the beginning and 74.3MB in the end (delta: -11.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:00:45,943 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 102.8MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:00:45,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.86ms. Allocated memory is still 102.8MB. Free memory was 63.1MB in the beginning and 76.0MB in the end (delta: -12.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:00:45,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.60ms. Allocated memory is still 102.8MB. Free memory was 75.6MB in the beginning and 73.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:00:45,946 INFO L158 Benchmark]: Boogie Preprocessor took 27.57ms. Allocated memory is still 102.8MB. Free memory was 73.5MB in the beginning and 72.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:00:45,951 INFO L158 Benchmark]: RCFGBuilder took 603.59ms. Allocated memory is still 102.8MB. Free memory was 72.2MB in the beginning and 50.1MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-03 02:00:45,953 INFO L158 Benchmark]: TraceAbstraction took 334.80ms. Allocated memory is still 102.8MB. Free memory was 49.3MB in the beginning and 74.3MB in the end (delta: -25.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:00:45,953 INFO L158 Benchmark]: Witness Printer took 4.71ms. Allocated memory is still 102.8MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:00:45,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 102.8MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.86ms. Allocated memory is still 102.8MB. Free memory was 63.1MB in the beginning and 76.0MB in the end (delta: -12.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.60ms. Allocated memory is still 102.8MB. Free memory was 75.6MB in the beginning and 73.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.57ms. Allocated memory is still 102.8MB. Free memory was 73.5MB in the beginning and 72.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 603.59ms. Allocated memory is still 102.8MB. Free memory was 72.2MB in the beginning and 50.1MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 334.80ms. Allocated memory is still 102.8MB. Free memory was 49.3MB in the beginning and 74.3MB in the end (delta: -25.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.71ms. Allocated memory is still 102.8MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 < 1.39843f) 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: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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 [2022-11-03 02:00:46,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/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_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI --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 31369bad6f1c83c546d17a52fbf2014a6a82af248db1b4a737df8b889fc9cfdd --- 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-5e519f3 [2022-11-03 02:00:48,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:00:48,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:00:48,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:00:48,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:00:48,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:00:48,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:00:48,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:00:48,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:00:48,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:00:48,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:00:48,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:00:48,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:00:48,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:00:48,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:00:48,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:00:48,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:00:48,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:00:48,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:00:48,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:00:48,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:00:48,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:00:48,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:00:48,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:00:48,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:00:48,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:00:48,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:00:48,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:00:48,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:00:48,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:00:48,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:00:48,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:00:48,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:00:48,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:00:48,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:00:48,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:00:48,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:00:48,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:00:48,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:00:48,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:00:48,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:00:48,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-03 02:00:48,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:00:48,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:00:48,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:00:48,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:00:48,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:00:48,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:00:48,383 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:00:48,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:00:48,384 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:00:48,384 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:00:48,384 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:00:48,384 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:00:48,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:00:48,385 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:00:48,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:00:48,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:00:48,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:00:48,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:00:48,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:00:48,386 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 02:00:48,387 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 02:00:48,387 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 02:00:48,387 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:00:48,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:00:48,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:00:48,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:00:48,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:00:48,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 02:00:48,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:00:48,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:00:48,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:00:48,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:00:48,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:00:48,390 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 02:00:48,390 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 02:00:48,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:00:48,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:00:48,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 02:00:48,391 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_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31369bad6f1c83c546d17a52fbf2014a6a82af248db1b4a737df8b889fc9cfdd [2022-11-03 02:00:48,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:00:48,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:00:48,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:00:48,756 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:00:48,757 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:00:48,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c [2022-11-03 02:00:48,830 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/data/db66b7130/9fd134561e6440429938dbe2b732fe59/FLAG3b2ba7d7f [2022-11-03 02:00:49,394 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:00:49,395 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c [2022-11-03 02:00:49,403 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/data/db66b7130/9fd134561e6440429938dbe2b732fe59/FLAG3b2ba7d7f [2022-11-03 02:00:49,732 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/data/db66b7130/9fd134561e6440429938dbe2b732fe59 [2022-11-03 02:00:49,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:00:49,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:00:49,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:00:49,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:00:49,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:00:49,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:49" (1/1) ... [2022-11-03 02:00:49,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15751eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:49, skipping insertion in model container [2022-11-03 02:00:49,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:49" (1/1) ... [2022-11-03 02:00:49,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:00:49,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:00:49,957 WARN L230 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_edde6483-8888-4240-9792-273769e6808f/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[1999,2012] [2022-11-03 02:00:49,962 WARN L230 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_edde6483-8888-4240-9792-273769e6808f/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[2368,2381] [2022-11-03 02:00:50,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:00:50,032 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:00:50,069 WARN L230 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_edde6483-8888-4240-9792-273769e6808f/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[1999,2012] [2022-11-03 02:00:50,084 WARN L230 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_edde6483-8888-4240-9792-273769e6808f/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[2368,2381] [2022-11-03 02:00:50,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:00:50,152 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:00:50,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50 WrapperNode [2022-11-03 02:00:50,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:00:50,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:00:50,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:00:50,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:00:50,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2022-11-03 02:00:50,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2022-11-03 02:00:50,193 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-11-03 02:00:50,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:00:50,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:00:50,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:00:50,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:00:50,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2022-11-03 02:00:50,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2022-11-03 02:00:50,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2022-11-03 02:00:50,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2022-11-03 02:00:50,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2022-11-03 02:00:50,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2022-11-03 02:00:50,223 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2022-11-03 02:00:50,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2022-11-03 02:00:50,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:00:50,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:00:50,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:00:50,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:00:50,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2022-11-03 02:00:50,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:00:50,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:00:50,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:00:50,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:00:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:00:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 02:00:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-03 02:00:50,309 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-03 02:00:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:00:50,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:00:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 02:00:50,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 02:00:50,431 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:00:50,433 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:00:52,958 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:00:52,964 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:00:52,965 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:00:52,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:52 BoogieIcfgContainer [2022-11-03 02:00:52,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:00:52,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:00:52,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:00:52,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:00:52,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:00:49" (1/3) ... [2022-11-03 02:00:52,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cdcbca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:52, skipping insertion in model container [2022-11-03 02:00:52,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (2/3) ... [2022-11-03 02:00:52,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cdcbca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:52, skipping insertion in model container [2022-11-03 02:00:52,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:52" (3/3) ... [2022-11-03 02:00:52,975 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_3a.c.cil.c [2022-11-03 02:00:53,026 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:00:53,026 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-03 02:00:53,094 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:00:53,102 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;@8c518b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:00:53,103 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-03 02:00:53,108 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) [2022-11-03 02:00:53,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 02:00:53,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:53,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:00:53,115 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:53,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:53,123 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-11-03 02:00:53,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:00:53,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032329824] [2022-11-03 02:00:53,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:53,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:00:53,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:00:53,144 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:00:53,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 02:00:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:53,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 02:00:53,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:00:53,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:00:53,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:00:53,701 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:00:53,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032329824] [2022-11-03 02:00:53,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032329824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:00:53,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:00:53,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:00:53,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865142089] [2022-11-03 02:00:53,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:00:53,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:00:53,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:00:53,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:00:53,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:00:53,737 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) [2022-11-03 02:00:53,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:00:53,764 INFO L93 Difference]: Finished difference Result 115 states and 173 transitions. [2022-11-03 02:00:53,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:00:53,767 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 [2022-11-03 02:00:53,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:00:53,774 INFO L225 Difference]: With dead ends: 115 [2022-11-03 02:00:53,775 INFO L226 Difference]: Without dead ends: 51 [2022-11-03 02:00:53,778 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 [2022-11-03 02:00:53,781 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 [2022-11-03 02:00:53,782 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] [2022-11-03 02:00:53,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-03 02:00:53,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-03 02:00:53,817 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) [2022-11-03 02:00:53,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-11-03 02:00:53,821 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2022-11-03 02:00:53,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:00:53,821 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-11-03 02:00:53,822 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) [2022-11-03 02:00:53,822 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-11-03 02:00:53,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 02:00:53,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:53,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:00:53,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:00:54,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:00:54,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:00:54,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:54,038 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-11-03 02:00:54,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:00:54,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533318900] [2022-11-03 02:00:54,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:54,039 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:00:54,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:00:54,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:00:54,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 02:10:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:10:31,809 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:11:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:11:20,481 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-03 02:11:20,481 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:11:20,483 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-03 02:11:20,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-03 02:11:20,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:11:20,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:11:20,690 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 02:11:20,696 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:11:20,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:11:20 BoogieIcfgContainer [2022-11-03 02:11:20,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:11:20,732 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:11:20,733 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:11:20,736 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:11:20,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:52" (3/4) ... [2022-11-03 02:11:20,739 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-03 02:11:20,792 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:11:20,792 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:11:20,794 INFO L158 Benchmark]: Toolchain (without parser) took 631058.51ms. Allocated memory is still 73.4MB. Free memory was 57.3MB in the beginning and 30.3MB in the end (delta: 27.1MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2022-11-03 02:11:20,795 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 73.4MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:11:20,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.36ms. Allocated memory is still 73.4MB. Free memory was 57.0MB in the beginning and 54.4MB in the end (delta: 2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:11:20,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.59ms. Allocated memory is still 73.4MB. Free memory was 54.2MB in the beginning and 52.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:11:20,801 INFO L158 Benchmark]: Boogie Preprocessor took 33.64ms. Allocated memory is still 73.4MB. Free memory was 52.3MB in the beginning and 50.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:11:20,801 INFO L158 Benchmark]: RCFGBuilder took 2737.82ms. Allocated memory is still 73.4MB. Free memory was 50.4MB in the beginning and 33.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-03 02:11:20,802 INFO L158 Benchmark]: TraceAbstraction took 627761.34ms. Allocated memory is still 73.4MB. Free memory was 33.0MB in the beginning and 32.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2022-11-03 02:11:20,803 INFO L158 Benchmark]: Witness Printer took 61.41ms. Allocated memory is still 73.4MB. Free memory was 32.0MB in the beginning and 30.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:11:20,808 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 73.4MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.36ms. Allocated memory is still 73.4MB. Free memory was 57.0MB in the beginning and 54.4MB in the end (delta: 2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.59ms. Allocated memory is still 73.4MB. Free memory was 54.2MB in the beginning and 52.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.64ms. Allocated memory is still 73.4MB. Free memory was 52.3MB in the beginning and 50.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2737.82ms. Allocated memory is still 73.4MB. Free memory was 50.4MB in the beginning and 33.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 627761.34ms. Allocated memory is still 73.4MB. Free memory was 33.0MB in the beginning and 32.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. * Witness Printer took 61.41ms. Allocated memory is still 73.4MB. Free memory was 32.0MB in the beginning and 30.3MB in the end (delta: 1.8MB). 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=0.9999968409538269, result=1.3984366655349731, x=0.9999968409538269] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999968409538269, result=1.3984366655349731, x=0.9999968409538269] [L48] reach_error() VAL [IN=0.9999968409538269, result=1.3984366655349731, x=0.9999968409538269] - 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: 627.6s, 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 578.2s 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! [2022-11-03 02:11:20,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edde6483-8888-4240-9792-273769e6808f/bin/utaipan-7li7fVZpFI/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