./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh --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 2353b893872e012206111abb166a426e9f40d30394d7ebef586e8dc818388f82 --- 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-2329fc7 [2022-12-14 14:28:32,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:28:32,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:28:32,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:28:32,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:28:32,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:28:32,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:28:33,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:28:33,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:28:33,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:28:33,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:28:33,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:28:33,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:28:33,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:28:33,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:28:33,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:28:33,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:28:33,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:28:33,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:28:33,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:28:33,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:28:33,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:28:33,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:28:33,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:28:33,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:28:33,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:28:33,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:28:33,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:28:33,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:28:33,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:28:33,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:28:33,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:28:33,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:28:33,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:28:33,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:28:33,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:28:33,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:28:33,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:28:33,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:28:33,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:28:33,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:28:33,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:28:33,072 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:28:33,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:28:33,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:28:33,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:28:33,073 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:28:33,074 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:28:33,074 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:28:33,074 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:28:33,074 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:28:33,074 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:28:33,075 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:28:33,075 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:28:33,075 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:28:33,075 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:28:33,075 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:28:33,076 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:28:33,076 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:28:33,076 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:28:33,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:28:33,077 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:28:33,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:28:33,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:28:33,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:28:33,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:28:33,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:28:33,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:28:33,078 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:28:33,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:28:33,079 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:28:33,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:28:33,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:28:33,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:28:33,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:28:33,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:28:33,080 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:28:33,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:28:33,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:28:33,080 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:28:33,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:28:33,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:28:33,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:28:33,081 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_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2353b893872e012206111abb166a426e9f40d30394d7ebef586e8dc818388f82 [2022-12-14 14:28:33,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:28:33,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:28:33,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:28:33,312 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:28:33,312 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:28:33,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c [2022-12-14 14:28:35,929 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:28:36,082 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:28:36,083 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c [2022-12-14 14:28:36,091 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/data/ba3f2f513/f3246cae9ea24dcea0fc03c84de297fd/FLAG2951ff3de [2022-12-14 14:28:36,103 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/data/ba3f2f513/f3246cae9ea24dcea0fc03c84de297fd [2022-12-14 14:28:36,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:28:36,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:28:36,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:28:36,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:28:36,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:28:36,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:28:36" (1/1) ... [2022-12-14 14:28:36,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee2f275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36, skipping insertion in model container [2022-12-14 14:28:36,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:28:36" (1/1) ... [2022-12-14 14:28:36,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:28:36,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:28:36,261 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_e69cd960-6ee5-4f90-a07d-f59b83001f1d/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[1996,2009] [2022-12-14 14:28:36,265 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_e69cd960-6ee5-4f90-a07d-f59b83001f1d/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[2365,2378] [2022-12-14 14:28:36,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:28:36,313 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:28:36,326 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_e69cd960-6ee5-4f90-a07d-f59b83001f1d/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[1996,2009] [2022-12-14 14:28:36,327 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_e69cd960-6ee5-4f90-a07d-f59b83001f1d/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[2365,2378] [2022-12-14 14:28:36,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:28:36,366 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:28:36,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36 WrapperNode [2022-12-14 14:28:36,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:28:36,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:28:36,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:28:36,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:28:36,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36" (1/1) ... [2022-12-14 14:28:36,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36" (1/1) ... [2022-12-14 14:28:36,403 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 187 [2022-12-14 14:28:36,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:28:36,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:28:36,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:28:36,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:28:36,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36" (1/1) ... [2022-12-14 14:28:36,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36" (1/1) ... [2022-12-14 14:28:36,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36" (1/1) ... [2022-12-14 14:28:36,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36" (1/1) ... [2022-12-14 14:28:36,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36" (1/1) ... [2022-12-14 14:28:36,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36" (1/1) ... [2022-12-14 14:28:36,427 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36" (1/1) ... [2022-12-14 14:28:36,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36" (1/1) ... [2022-12-14 14:28:36,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:28:36,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:28:36,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:28:36,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:28:36,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36" (1/1) ... [2022-12-14 14:28:36,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:28:36,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:28:36,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:28:36,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:28:36,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:28:36,493 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-14 14:28:36,493 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-14 14:28:36,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:28:36,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:28:36,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:28:36,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 14:28:36,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 14:28:36,551 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:28:36,552 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:28:36,852 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:28:37,021 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:28:37,021 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 14:28:37,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:28:37 BoogieIcfgContainer [2022-12-14 14:28:37,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:28:37,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:28:37,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:28:37,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:28:37,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:28:36" (1/3) ... [2022-12-14 14:28:37,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb56b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:28:37, skipping insertion in model container [2022-12-14 14:28:37,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:36" (2/3) ... [2022-12-14 14:28:37,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb56b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:28:37, skipping insertion in model container [2022-12-14 14:28:37,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:28:37" (3/3) ... [2022-12-14 14:28:37,031 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_5a.c.cil.c [2022-12-14 14:28:37,044 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:28:37,044 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 14:28:37,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:28:37,088 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;@2431aeda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:28:37,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 14:28:37,092 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) [2022-12-14 14:28:37,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 14:28:37,097 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:37,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 14:28:37,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:28:37,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:37,103 INFO L85 PathProgramCache]: Analyzing trace with hash 10135056, now seen corresponding path program 1 times [2022-12-14 14:28:37,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:28:37,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858538298] [2022-12-14 14:28:37,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:37,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:28:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:28:37,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:28:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:28:37,209 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:28:37,211 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:28:37,212 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 14:28:37,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 14:28:37,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:28:37,218 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 14:28:37,222 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:28:37,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:28:37 BoogieIcfgContainer [2022-12-14 14:28:37,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:28:37,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:28:37,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:28:37,237 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:28:37,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:28:37" (3/4) ... [2022-12-14 14:28:37,241 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:28:37,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:28:37,242 INFO L158 Benchmark]: Toolchain (without parser) took 1135.55ms. Allocated memory is still 125.8MB. Free memory was 91.9MB in the beginning and 54.3MB in the end (delta: 37.6MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2022-12-14 14:28:37,242 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:28:37,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.14ms. Allocated memory is still 125.8MB. Free memory was 91.6MB in the beginning and 77.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 14:28:37,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.66ms. Allocated memory is still 125.8MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:28:37,244 INFO L158 Benchmark]: Boogie Preprocessor took 28.27ms. Allocated memory is still 125.8MB. Free memory was 75.3MB in the beginning and 73.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:28:37,244 INFO L158 Benchmark]: RCFGBuilder took 591.72ms. Allocated memory is still 125.8MB. Free memory was 73.2MB in the beginning and 69.7MB in the end (delta: 3.5MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-12-14 14:28:37,245 INFO L158 Benchmark]: TraceAbstraction took 211.06ms. Allocated memory is still 125.8MB. Free memory was 69.0MB in the beginning and 55.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 14:28:37,245 INFO L158 Benchmark]: Witness Printer took 3.80ms. Allocated memory is still 125.8MB. Free memory was 55.0MB in the beginning and 54.3MB in the end (delta: 658.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:28:37,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.14ms. Allocated memory is still 125.8MB. Free memory was 91.6MB in the beginning and 77.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.66ms. Allocated memory is still 125.8MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.27ms. Allocated memory is still 125.8MB. Free memory was 75.3MB in the beginning and 73.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 591.72ms. Allocated memory is still 125.8MB. Free memory was 73.2MB in the beginning and 69.7MB in the end (delta: 3.5MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * TraceAbstraction took 211.06ms. Allocated memory is still 125.8MB. Free memory was 69.0MB in the beginning and 55.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 3.80ms. Allocated memory is still 125.8MB. Free memory was 55.0MB in the beginning and 54.3MB in the end (delta: 658.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=53, x=53] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, 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 [2022-12-14 14:28:37,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh --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 2353b893872e012206111abb166a426e9f40d30394d7ebef586e8dc818388f82 --- 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-2329fc7 [2022-12-14 14:28:38,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:28:38,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:28:38,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:28:38,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:28:38,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:28:38,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:28:38,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:28:38,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:28:38,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:28:38,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:28:38,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:28:38,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:28:38,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:28:38,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:28:38,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:28:38,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:28:38,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:28:38,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:28:38,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:28:38,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:28:38,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:28:38,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:28:38,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:28:38,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:28:38,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:28:38,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:28:38,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:28:38,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:28:38,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:28:38,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:28:38,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:28:38,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:28:38,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:28:38,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:28:38,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:28:38,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:28:38,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:28:38,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:28:38,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:28:38,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:28:38,957 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 14:28:38,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:28:38,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:28:38,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:28:38,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:28:38,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:28:38,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:28:38,984 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:28:38,984 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:28:38,984 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:28:38,984 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:28:38,984 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:28:38,985 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:28:38,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:28:38,986 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:28:38,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:28:38,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:28:38,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:28:38,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:28:38,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:28:38,987 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:28:38,987 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 14:28:38,987 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 14:28:38,987 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:28:38,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:28:38,988 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:28:38,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:28:38,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:28:38,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 14:28:38,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:28:38,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:28:38,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:28:38,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:28:38,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:28:38,989 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 14:28:38,990 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 14:28:38,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:28:38,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:28:38,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 14:28:38,990 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_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2353b893872e012206111abb166a426e9f40d30394d7ebef586e8dc818388f82 [2022-12-14 14:28:39,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:28:39,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:28:39,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:28:39,248 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:28:39,248 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:28:39,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c [2022-12-14 14:28:41,889 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:28:42,017 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:28:42,017 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c [2022-12-14 14:28:42,023 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/data/2f1b45bdb/9dadddd0c9d441cc910017fccfd12ef1/FLAGf47578ac1 [2022-12-14 14:28:42,034 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/data/2f1b45bdb/9dadddd0c9d441cc910017fccfd12ef1 [2022-12-14 14:28:42,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:28:42,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:28:42,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:28:42,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:28:42,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:28:42,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:28:42" (1/1) ... [2022-12-14 14:28:42,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e5acba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42, skipping insertion in model container [2022-12-14 14:28:42,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:28:42" (1/1) ... [2022-12-14 14:28:42,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:28:42,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:28:42,224 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_e69cd960-6ee5-4f90-a07d-f59b83001f1d/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[1996,2009] [2022-12-14 14:28:42,230 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_e69cd960-6ee5-4f90-a07d-f59b83001f1d/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[2365,2378] [2022-12-14 14:28:42,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:28:42,278 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:28:42,293 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_e69cd960-6ee5-4f90-a07d-f59b83001f1d/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[1996,2009] [2022-12-14 14:28:42,294 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_e69cd960-6ee5-4f90-a07d-f59b83001f1d/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[2365,2378] [2022-12-14 14:28:42,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:28:42,334 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:28:42,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42 WrapperNode [2022-12-14 14:28:42,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:28:42,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:28:42,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:28:42,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:28:42,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42" (1/1) ... [2022-12-14 14:28:42,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42" (1/1) ... [2022-12-14 14:28:42,376 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-12-14 14:28:42,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:28:42,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:28:42,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:28:42,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:28:42,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42" (1/1) ... [2022-12-14 14:28:42,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42" (1/1) ... [2022-12-14 14:28:42,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42" (1/1) ... [2022-12-14 14:28:42,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42" (1/1) ... [2022-12-14 14:28:42,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42" (1/1) ... [2022-12-14 14:28:42,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42" (1/1) ... [2022-12-14 14:28:42,404 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42" (1/1) ... [2022-12-14 14:28:42,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42" (1/1) ... [2022-12-14 14:28:42,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:28:42,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:28:42,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:28:42,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:28:42,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42" (1/1) ... [2022-12-14 14:28:42,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:28:42,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:28:42,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:28:42,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:28:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:28:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 14:28:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-14 14:28:42,470 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-14 14:28:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:28:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:28:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 14:28:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 14:28:42,552 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:28:42,554 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:28:45,001 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:28:45,005 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:28:45,006 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 14:28:45,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:28:45 BoogieIcfgContainer [2022-12-14 14:28:45,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:28:45,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:28:45,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:28:45,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:28:45,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:28:42" (1/3) ... [2022-12-14 14:28:45,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a7b59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:28:45, skipping insertion in model container [2022-12-14 14:28:45,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:28:42" (2/3) ... [2022-12-14 14:28:45,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a7b59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:28:45, skipping insertion in model container [2022-12-14 14:28:45,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:28:45" (3/3) ... [2022-12-14 14:28:45,013 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_5a.c.cil.c [2022-12-14 14:28:45,026 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:28:45,026 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 14:28:45,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:28:45,064 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;@684a89ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:28:45,064 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 14:28:45,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 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) [2022-12-14 14:28:45,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 14:28:45,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:45,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:28:45,072 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:28:45,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:45,076 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-12-14 14:28:45,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:28:45,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484424093] [2022-12-14 14:28:45,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:45,086 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 [2022-12-14 14:28:45,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:28:45,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/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) [2022-12-14 14:28:45,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:28:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:45,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 14:28:45,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:28:45,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:28:45,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:28:45,561 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:28:45,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484424093] [2022-12-14 14:28:45,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484424093] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:28:45,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:28:45,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:28:45,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256569766] [2022-12-14 14:28:45,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:28:45,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:28:45,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:28:45,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:28:45,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:28:45,589 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 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) [2022-12-14 14:28:45,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:28:45,608 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-12-14 14:28:45,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:28:45,610 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 [2022-12-14 14:28:45,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:28:45,615 INFO L225 Difference]: With dead ends: 117 [2022-12-14 14:28:45,615 INFO L226 Difference]: Without dead ends: 52 [2022-12-14 14:28:45,617 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 [2022-12-14 14:28:45,619 INFO L413 NwaCegarLoop]: 82 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, 82 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 [2022-12-14 14:28:45,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:28:45,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-14 14:28:45,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-12-14 14:28:45,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 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) [2022-12-14 14:28:45,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-12-14 14:28:45,647 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-12-14 14:28:45,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:28:45,647 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-12-14 14:28:45,647 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) [2022-12-14 14:28:45,648 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-12-14 14:28:45,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 14:28:45,648 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:45,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:28:45,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:28:45,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:28:45,850 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:28:45,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:45,852 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-12-14 14:28:45,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:28:45,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411439708] [2022-12-14 14:28:45,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:45,855 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 [2022-12-14 14:28:45,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:28:45,858 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/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) [2022-12-14 14:28:45,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:29:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:29:54,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:30:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:30:07,408 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 14:30:07,408 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:30:07,409 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 14:30:07,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 14:30:07,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:30:07,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:30:07,621 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 14:30:07,632 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:30:07,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:30:07 BoogieIcfgContainer [2022-12-14 14:30:07,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:30:07,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:30:07,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:30:07,663 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:30:07,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:28:45" (3/4) ... [2022-12-14 14:30:07,665 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 14:30:07,688 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:30:07,688 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:30:07,688 INFO L158 Benchmark]: Toolchain (without parser) took 85651.62ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 29.9MB in the beginning and 34.9MB in the end (delta: -5.0MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2022-12-14 14:30:07,689 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory was 39.6MB in the beginning and 39.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:30:07,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.15ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 29.7MB in the beginning and 43.8MB in the end (delta: -14.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-12-14 14:30:07,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.62ms. Allocated memory is still 73.4MB. Free memory was 43.8MB in the beginning and 41.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:30:07,690 INFO L158 Benchmark]: Boogie Preprocessor took 32.68ms. Allocated memory is still 73.4MB. Free memory was 41.6MB in the beginning and 39.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:30:07,690 INFO L158 Benchmark]: RCFGBuilder took 2596.93ms. Allocated memory is still 73.4MB. Free memory was 39.9MB in the beginning and 42.1MB in the end (delta: -2.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-12-14 14:30:07,690 INFO L158 Benchmark]: TraceAbstraction took 82654.19ms. Allocated memory is still 73.4MB. Free memory was 41.2MB in the beginning and 36.6MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-12-14 14:30:07,690 INFO L158 Benchmark]: Witness Printer took 24.85ms. Allocated memory is still 73.4MB. Free memory was 36.6MB in the beginning and 34.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:30:07,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory was 39.6MB in the beginning and 39.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.15ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 29.7MB in the beginning and 43.8MB in the end (delta: -14.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.62ms. Allocated memory is still 73.4MB. Free memory was 43.8MB in the beginning and 41.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.68ms. Allocated memory is still 73.4MB. Free memory was 41.6MB in the beginning and 39.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2596.93ms. Allocated memory is still 73.4MB. Free memory was 39.9MB in the beginning and 42.1MB in the end (delta: -2.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * TraceAbstraction took 82654.19ms. Allocated memory is still 73.4MB. Free memory was 41.2MB in the beginning and 36.6MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Witness Printer took 24.85ms. Allocated memory is still 73.4MB. Free memory was 36.6MB in the beginning and 34.9MB 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: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9937272071838379, result=1.3966666460037231, x=0.9937272071838379] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=0.9937272071838379, result=1.3966666460037231, x=0.9937272071838379] [L48] reach_error() VAL [IN=0.9937272071838379, result=1.3966666460037231, x=0.9937272071838379] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 82.6s, 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, 82 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, 82 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=61occurred 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, 68.9s 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! [2022-12-14 14:30:07,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e69cd960-6ee5-4f90-a07d-f59b83001f1d/bin/utaipan-gh47qXpMRh/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE