./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 20:41:26,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 20:41:26,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 20:41:26,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 20:41:26,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 20:41:26,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 20:41:26,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 20:41:26,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 20:41:26,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 20:41:26,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 20:41:26,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 20:41:26,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 20:41:26,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 20:41:26,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 20:41:26,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 20:41:26,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 20:41:26,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 20:41:26,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 20:41:26,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 20:41:26,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 20:41:26,889 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 20:41:26,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 20:41:26,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 20:41:26,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 20:41:26,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 20:41:26,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 20:41:26,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 20:41:26,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 20:41:26,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 20:41:26,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 20:41:26,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 20:41:26,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 20:41:26,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 20:41:26,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 20:41:26,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 20:41:26,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 20:41:26,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 20:41:26,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 20:41:26,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 20:41:26,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 20:41:26,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 20:41:26,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 20:41:26,912 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 20:41:26,944 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 20:41:26,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 20:41:26,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 20:41:26,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 20:41:26,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 20:41:26,945 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 20:41:26,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 20:41:26,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 20:41:26,946 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 20:41:26,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 20:41:26,946 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 20:41:26,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 20:41:26,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 20:41:26,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 20:41:26,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 20:41:26,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 20:41:26,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 20:41:26,948 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 20:41:26,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 20:41:26,948 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 20:41:26,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 20:41:26,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 20:41:26,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 20:41:26,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 20:41:26,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 20:41:26,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 20:41:26,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 20:41:26,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 20:41:26,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 20:41:26,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 20:41:26,950 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 20:41:26,950 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 20:41:26,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 20:41:26,951 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2022-07-19 20:41:27,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 20:41:27,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 20:41:27,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 20:41:27,176 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 20:41:27,176 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 20:41:27,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-07-19 20:41:27,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca2163943/672beeb401f94d3091ef0c590f4173ae/FLAG7e6e6eb06 [2022-07-19 20:41:27,672 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 20:41:27,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-07-19 20:41:27,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca2163943/672beeb401f94d3091ef0c590f4173ae/FLAG7e6e6eb06 [2022-07-19 20:41:28,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca2163943/672beeb401f94d3091ef0c590f4173ae [2022-07-19 20:41:28,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 20:41:28,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 20:41:28,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 20:41:28,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 20:41:28,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 20:41:28,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:41:28" (1/1) ... [2022-07-19 20:41:28,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b4200bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:28, skipping insertion in model container [2022-07-19 20:41:28,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:41:28" (1/1) ... [2022-07-19 20:41:28,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 20:41:28,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 20:41:28,278 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-07-19 20:41:28,282 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-07-19 20:41:28,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 20:41:28,328 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 20:41:28,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-07-19 20:41:28,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-07-19 20:41:28,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 20:41:28,406 INFO L208 MainTranslator]: Completed translation [2022-07-19 20:41:28,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:28 WrapperNode [2022-07-19 20:41:28,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 20:41:28,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 20:41:28,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 20:41:28,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 20:41:28,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:28" (1/1) ... [2022-07-19 20:41:28,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:28" (1/1) ... [2022-07-19 20:41:28,448 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-07-19 20:41:28,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 20:41:28,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 20:41:28,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 20:41:28,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 20:41:28,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:28" (1/1) ... [2022-07-19 20:41:28,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:28" (1/1) ... [2022-07-19 20:41:28,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:28" (1/1) ... [2022-07-19 20:41:28,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:28" (1/1) ... [2022-07-19 20:41:28,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:28" (1/1) ... [2022-07-19 20:41:28,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:28" (1/1) ... [2022-07-19 20:41:28,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:28" (1/1) ... [2022-07-19 20:41:28,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 20:41:28,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 20:41:28,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 20:41:28,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 20:41:28,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:28" (1/1) ... [2022-07-19 20:41:28,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 20:41:28,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 20:41:28,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 20:41:28,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 20:41:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 20:41:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-19 20:41:28,569 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-19 20:41:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 20:41:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 20:41:28,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 20:41:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-19 20:41:28,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-19 20:41:28,643 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 20:41:28,645 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 20:41:28,976 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 20:41:28,983 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 20:41:28,983 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 20:41:28,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:41:28 BoogieIcfgContainer [2022-07-19 20:41:28,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 20:41:28,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 20:41:28,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 20:41:29,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 20:41:29,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 08:41:28" (1/3) ... [2022-07-19 20:41:29,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be6eb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:41:29, skipping insertion in model container [2022-07-19 20:41:29,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:28" (2/3) ... [2022-07-19 20:41:29,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be6eb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:41:29, skipping insertion in model container [2022-07-19 20:41:29,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:41:28" (3/3) ... [2022-07-19 20:41:29,006 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2022-07-19 20:41:29,018 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 20:41:29,018 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 20:41:29,060 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 20:41:29,066 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7c55fd12, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@d7a9737 [2022-07-19 20:41:29,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 20:41:29,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 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) [2022-07-19 20:41:29,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-19 20:41:29,077 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:41:29,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:41:29,078 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:41:29,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:41:29,083 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-07-19 20:41:29,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:41:29,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751425347] [2022-07-19 20:41:29,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:41:29,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:41:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:41:29,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:41:29,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:41:29,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751425347] [2022-07-19 20:41:29,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751425347] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:41:29,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:41:29,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 20:41:29,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804773793] [2022-07-19 20:41:29,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:41:29,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 20:41:29,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:41:29,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 20:41:29,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 20:41:29,229 INFO L87 Difference]: Start difference. First operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 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) [2022-07-19 20:41:29,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:41:29,257 INFO L93 Difference]: Finished difference Result 189 states and 311 transitions. [2022-07-19 20:41:29,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 20:41:29,259 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 [2022-07-19 20:41:29,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:41:29,266 INFO L225 Difference]: With dead ends: 189 [2022-07-19 20:41:29,267 INFO L226 Difference]: Without dead ends: 88 [2022-07-19 20:41:29,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 20:41:29,273 INFO L413 NwaCegarLoop]: 140 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, 140 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 [2022-07-19 20:41:29,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 20:41:29,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-07-19 20:41:29,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-07-19 20:41:29,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 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) [2022-07-19 20:41:29,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 129 transitions. [2022-07-19 20:41:29,312 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 129 transitions. Word has length 7 [2022-07-19 20:41:29,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:41:29,313 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 129 transitions. [2022-07-19 20:41:29,313 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) [2022-07-19 20:41:29,314 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-07-19 20:41:29,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-19 20:41:29,315 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:41:29,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:41:29,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 20:41:29,315 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:41:29,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:41:29,316 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-07-19 20:41:29,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:41:29,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050501621] [2022-07-19 20:41:29,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:41:29,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:41:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 20:41:29,334 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 20:41:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 20:41:29,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 20:41:29,357 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 20:41:29,358 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-19 20:41:29,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-19 20:41:29,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 20:41:29,363 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 20:41:29,366 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 20:41:29,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 08:41:29 BoogieIcfgContainer [2022-07-19 20:41:29,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 20:41:29,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 20:41:29,390 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 20:41:29,391 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 20:41:29,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:41:28" (3/4) ... [2022-07-19 20:41:29,394 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 20:41:29,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 20:41:29,395 INFO L158 Benchmark]: Toolchain (without parser) took 1326.15ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 45.6MB in the beginning and 51.2MB in the end (delta: -5.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-07-19 20:41:29,396 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory was 61.8MB in the beginning and 61.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 20:41:29,398 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.89ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 55.7MB in the end (delta: -10.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 20:41:29,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.32ms. Allocated memory is still 83.9MB. Free memory was 55.7MB in the beginning and 53.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 20:41:29,401 INFO L158 Benchmark]: Boogie Preprocessor took 27.75ms. Allocated memory is still 83.9MB. Free memory was 53.5MB in the beginning and 51.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 20:41:29,402 INFO L158 Benchmark]: RCFGBuilder took 507.56ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 51.5MB in the beginning and 76.2MB in the end (delta: -24.7MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-07-19 20:41:29,402 INFO L158 Benchmark]: TraceAbstraction took 402.57ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 51.9MB in the end (delta: 23.8MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2022-07-19 20:41:29,402 INFO L158 Benchmark]: Witness Printer took 3.63ms. Allocated memory is still 100.7MB. Free memory was 51.9MB in the beginning and 51.2MB in the end (delta: 640.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 20:41:29,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory was 61.8MB in the beginning and 61.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.89ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 55.7MB in the end (delta: -10.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.32ms. Allocated memory is still 83.9MB. Free memory was 55.7MB in the beginning and 53.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.75ms. Allocated memory is still 83.9MB. Free memory was 53.5MB in the beginning and 51.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 507.56ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 51.5MB in the beginning and 76.2MB in the end (delta: -24.7MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * TraceAbstraction took 402.57ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 51.9MB in the end (delta: 23.8MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Witness Printer took 3.63ms. Allocated memory is still 100.7MB. Free memory was 51.9MB in the beginning and 51.2MB in the end (delta: 640.8kB). 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 - 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) 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=49, x=49] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=49, x=49] [L48] reach_error() VAL [IN=49, x=49] - 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, 97 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 140 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, 140 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-19 20:41:29,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 20:41:31,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 20:41:31,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 20:41:31,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 20:41:31,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 20:41:31,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 20:41:31,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 20:41:31,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 20:41:31,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 20:41:31,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 20:41:31,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 20:41:31,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 20:41:31,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 20:41:31,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 20:41:31,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 20:41:31,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 20:41:31,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 20:41:31,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 20:41:31,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 20:41:31,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 20:41:31,427 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 20:41:31,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 20:41:31,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 20:41:31,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 20:41:31,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 20:41:31,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 20:41:31,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 20:41:31,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 20:41:31,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 20:41:31,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 20:41:31,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 20:41:31,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 20:41:31,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 20:41:31,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 20:41:31,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 20:41:31,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 20:41:31,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 20:41:31,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 20:41:31,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 20:41:31,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 20:41:31,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 20:41:31,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 20:41:31,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 20:41:31,489 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 20:41:31,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 20:41:31,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 20:41:31,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 20:41:31,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 20:41:31,492 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 20:41:31,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 20:41:31,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 20:41:31,493 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 20:41:31,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 20:41:31,494 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 20:41:31,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 20:41:31,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 20:41:31,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 20:41:31,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 20:41:31,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 20:41:31,495 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 20:41:31,495 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 20:41:31,495 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 20:41:31,496 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 20:41:31,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 20:41:31,496 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 20:41:31,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 20:41:31,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 20:41:31,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 20:41:31,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 20:41:31,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 20:41:31,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 20:41:31,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 20:41:31,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 20:41:31,498 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 20:41:31,498 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 20:41:31,498 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 20:41:31,498 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 20:41:31,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 20:41:31,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 20:41:31,499 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2022-07-19 20:41:31,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 20:41:31,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 20:41:31,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 20:41:31,853 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 20:41:31,854 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 20:41:31,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-07-19 20:41:31,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4f4a9f5d/b62903e502f348d49d98760a2de0d426/FLAG590b00cab [2022-07-19 20:41:32,300 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 20:41:32,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-07-19 20:41:32,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4f4a9f5d/b62903e502f348d49d98760a2de0d426/FLAG590b00cab [2022-07-19 20:41:32,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4f4a9f5d/b62903e502f348d49d98760a2de0d426 [2022-07-19 20:41:32,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 20:41:32,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 20:41:32,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 20:41:32,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 20:41:32,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 20:41:32,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:41:32" (1/1) ... [2022-07-19 20:41:32,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7227082c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:32, skipping insertion in model container [2022-07-19 20:41:32,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:41:32" (1/1) ... [2022-07-19 20:41:32,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 20:41:32,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 20:41:32,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-07-19 20:41:32,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-07-19 20:41:32,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 20:41:32,957 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 20:41:32,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-07-19 20:41:32,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-07-19 20:41:32,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 20:41:33,003 INFO L208 MainTranslator]: Completed translation [2022-07-19 20:41:33,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:33 WrapperNode [2022-07-19 20:41:33,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 20:41:33,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 20:41:33,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 20:41:33,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 20:41:33,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:33" (1/1) ... [2022-07-19 20:41:33,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:33" (1/1) ... [2022-07-19 20:41:33,041 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-07-19 20:41:33,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 20:41:33,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 20:41:33,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 20:41:33,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 20:41:33,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:33" (1/1) ... [2022-07-19 20:41:33,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:33" (1/1) ... [2022-07-19 20:41:33,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:33" (1/1) ... [2022-07-19 20:41:33,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:33" (1/1) ... [2022-07-19 20:41:33,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:33" (1/1) ... [2022-07-19 20:41:33,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:33" (1/1) ... [2022-07-19 20:41:33,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:33" (1/1) ... [2022-07-19 20:41:33,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 20:41:33,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 20:41:33,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 20:41:33,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 20:41:33,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:33" (1/1) ... [2022-07-19 20:41:33,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 20:41:33,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 20:41:33,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 20:41:33,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 20:41:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 20:41:33,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 20:41:33,145 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-19 20:41:33,145 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-19 20:41:33,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 20:41:33,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 20:41:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-19 20:41:33,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-19 20:41:33,264 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 20:41:33,266 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 20:41:35,828 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 20:41:35,834 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 20:41:35,834 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 20:41:35,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:41:35 BoogieIcfgContainer [2022-07-19 20:41:35,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 20:41:35,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 20:41:35,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 20:41:35,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 20:41:35,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 08:41:32" (1/3) ... [2022-07-19 20:41:35,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b858d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:41:35, skipping insertion in model container [2022-07-19 20:41:35,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:41:33" (2/3) ... [2022-07-19 20:41:35,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b858d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:41:35, skipping insertion in model container [2022-07-19 20:41:35,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:41:35" (3/3) ... [2022-07-19 20:41:35,844 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2022-07-19 20:41:35,857 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 20:41:35,858 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 20:41:35,901 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 20:41:35,907 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@17305f00, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@e2684b3 [2022-07-19 20:41:35,908 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 20:41:35,911 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) [2022-07-19 20:41:35,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-19 20:41:35,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:41:35,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:41:35,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:41:35,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:41:35,921 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-07-19 20:41:35,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 20:41:35,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349297623] [2022-07-19 20:41:35,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:41:35,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 20:41:35,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 20:41:35,932 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 20:41:35,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 20:41:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:41:36,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 20:41:36,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 20:41:36,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:41:36,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 20:41:36,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 20:41:36,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349297623] [2022-07-19 20:41:36,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349297623] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:41:36,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:41:36,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 20:41:36,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879925625] [2022-07-19 20:41:36,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:41:36,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 20:41:36,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 20:41:36,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 20:41:36,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 20:41:36,411 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) [2022-07-19 20:41:36,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:41:36,447 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-07-19 20:41:36,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 20:41:36,449 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 [2022-07-19 20:41:36,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:41:36,456 INFO L225 Difference]: With dead ends: 117 [2022-07-19 20:41:36,457 INFO L226 Difference]: Without dead ends: 52 [2022-07-19 20:41:36,460 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 [2022-07-19 20:41:36,464 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 [2022-07-19 20:41:36,465 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] [2022-07-19 20:41:36,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-19 20:41:36,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-07-19 20:41:36,491 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) [2022-07-19 20:41:36,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-07-19 20:41:36,494 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-07-19 20:41:36,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:41:36,494 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-07-19 20:41:36,494 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) [2022-07-19 20:41:36,495 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-07-19 20:41:36,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-19 20:41:36,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:41:36,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:41:36,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-19 20:41:36,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 20:41:36,697 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:41:36,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:41:36,698 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-07-19 20:41:36,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 20:41:36,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395806638] [2022-07-19 20:41:36,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:41:36,699 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 20:41:36,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 20:41:36,700 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 20:41:36,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 20:43:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 20:43:25,541 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 20:44:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 20:44:20,466 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-19 20:44:20,466 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 20:44:20,467 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-19 20:44:20,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-19 20:44:20,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 20:44:20,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 20:44:20,673 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 20:44:20,676 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 20:44:20,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 08:44:20 BoogieIcfgContainer [2022-07-19 20:44:20,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 20:44:20,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 20:44:20,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 20:44:20,705 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 20:44:20,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:41:35" (3/4) ... [2022-07-19 20:44:20,710 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 20:44:20,746 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 20:44:20,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 20:44:20,752 INFO L158 Benchmark]: Toolchain (without parser) took 168044.61ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 45.3MB in the beginning and 55.0MB in the end (delta: -9.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 20:44:20,753 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 65.0MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 52.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 20:44:20,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.61ms. Allocated memory is still 65.0MB. Free memory was 45.0MB in the beginning and 45.4MB in the end (delta: -319.6kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 20:44:20,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.20ms. Allocated memory is still 65.0MB. Free memory was 45.4MB in the beginning and 43.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 20:44:20,754 INFO L158 Benchmark]: Boogie Preprocessor took 41.47ms. Allocated memory is still 65.0MB. Free memory was 43.4MB in the beginning and 41.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 20:44:20,755 INFO L158 Benchmark]: RCFGBuilder took 2751.24ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 41.7MB in the beginning and 59.2MB in the end (delta: -17.5MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2022-07-19 20:44:20,755 INFO L158 Benchmark]: TraceAbstraction took 164864.70ms. Allocated memory is still 79.7MB. Free memory was 58.6MB in the beginning and 56.6MB in the end (delta: 2.0MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2022-07-19 20:44:20,755 INFO L158 Benchmark]: Witness Printer took 46.78ms. Allocated memory is still 79.7MB. Free memory was 56.6MB in the beginning and 55.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 20:44:20,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 65.0MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 52.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.61ms. Allocated memory is still 65.0MB. Free memory was 45.0MB in the beginning and 45.4MB in the end (delta: -319.6kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.20ms. Allocated memory is still 65.0MB. Free memory was 45.4MB in the beginning and 43.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.47ms. Allocated memory is still 65.0MB. Free memory was 43.4MB in the beginning and 41.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2751.24ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 41.7MB in the beginning and 59.2MB in the end (delta: -17.5MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 164864.70ms. Allocated memory is still 79.7MB. Free memory was 58.6MB in the beginning and 56.6MB in the end (delta: 2.0MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Witness Printer took 46.78ms. Allocated memory is still 79.7MB. Free memory was 56.6MB in the beginning and 55.0MB in the end (delta: 1.6MB). 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 - 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=0.9999999403953552, result=1.3984375, x=0.9999999403953552] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999999403953552, result=1.3984375, x=0.9999999403953552] [L48] reach_error() VAL [IN=0.9999999403953552, result=1.3984375, x=0.9999999403953552] - 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: 164.8s, 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, 109.2s 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! [2022-07-19 20:44:20,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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