./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_3a.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 31369bad6f1c83c546d17a52fbf2014a6a82af248db1b4a737df8b889fc9cfdd --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 20:56:24,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 20:56:24,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 20:56:24,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 20:56:24,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 20:56:24,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 20:56:24,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 20:56:24,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 20:56:24,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 20:56:24,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 20:56:24,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 20:56:24,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 20:56:24,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 20:56:24,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 20:56:24,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 20:56:24,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 20:56:24,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 20:56:24,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 20:56:24,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 20:56:24,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 20:56:24,448 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 20:56:24,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 20:56:24,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 20:56:24,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 20:56:24,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 20:56:24,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 20:56:24,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 20:56:24,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 20:56:24,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 20:56:24,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 20:56:24,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 20:56:24,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 20:56:24,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 20:56:24,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 20:56:24,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 20:56:24,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 20:56:24,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 20:56:24,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 20:56:24,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 20:56:24,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 20:56:24,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 20:56:24,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 20:56:24,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 20:56:24,496 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 20:56:24,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 20:56:24,497 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 20:56:24,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 20:56:24,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 20:56:24,498 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 20:56:24,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 20:56:24,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 20:56:24,499 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 20:56:24,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 20:56:24,500 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 20:56:24,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 20:56:24,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 20:56:24,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 20:56:24,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 20:56:24,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 20:56:24,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 20:56:24,501 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 20:56:24,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 20:56:24,502 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 20:56:24,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 20:56:24,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 20:56:24,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 20:56:24,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 20:56:24,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 20:56:24,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 20:56:24,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 20:56:24,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 20:56:24,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 20:56:24,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 20:56:24,504 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 20:56:24,504 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 20:56:24,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 20:56:24,505 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31369bad6f1c83c546d17a52fbf2014a6a82af248db1b4a737df8b889fc9cfdd [2022-07-22 20:56:24,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 20:56:24,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 20:56:24,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 20:56:24,744 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 20:56:24,744 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 20:56:24,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c [2022-07-22 20:56:24,808 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ce4349f/8eb56f2de43947bfbba596df7654ed5f/FLAG1ea270000 [2022-07-22 20:56:25,152 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 20:56:25,153 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c [2022-07-22 20:56:25,158 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ce4349f/8eb56f2de43947bfbba596df7654ed5f/FLAG1ea270000 [2022-07-22 20:56:25,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ce4349f/8eb56f2de43947bfbba596df7654ed5f [2022-07-22 20:56:25,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 20:56:25,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 20:56:25,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 20:56:25,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 20:56:25,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 20:56:25,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 08:56:25" (1/1) ... [2022-07-22 20:56:25,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57469a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:25, skipping insertion in model container [2022-07-22 20:56:25,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 08:56:25" (1/1) ... [2022-07-22 20:56:25,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 20:56:25,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 20:56:25,768 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_3a.c.cil.c[1999,2012] [2022-07-22 20:56:25,772 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_3a.c.cil.c[2368,2381] [2022-07-22 20:56:25,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 20:56:25,824 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 20:56:25,837 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_3a.c.cil.c[1999,2012] [2022-07-22 20:56:25,838 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_3a.c.cil.c[2368,2381] [2022-07-22 20:56:25,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 20:56:25,875 INFO L208 MainTranslator]: Completed translation [2022-07-22 20:56:25,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:25 WrapperNode [2022-07-22 20:56:25,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 20:56:25,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 20:56:25,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 20:56:25,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 20:56:25,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:25" (1/1) ... [2022-07-22 20:56:25,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:25" (1/1) ... [2022-07-22 20:56:25,917 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-07-22 20:56:25,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 20:56:25,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 20:56:25,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 20:56:25,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 20:56:25,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:25" (1/1) ... [2022-07-22 20:56:25,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:25" (1/1) ... [2022-07-22 20:56:25,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:25" (1/1) ... [2022-07-22 20:56:25,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:25" (1/1) ... [2022-07-22 20:56:25,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:25" (1/1) ... [2022-07-22 20:56:25,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:25" (1/1) ... [2022-07-22 20:56:25,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:25" (1/1) ... [2022-07-22 20:56:25,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 20:56:25,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 20:56:25,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 20:56:25,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 20:56:25,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:25" (1/1) ... [2022-07-22 20:56:25,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 20:56:25,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 20:56:25,979 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) [2022-07-22 20:56:25,981 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 [2022-07-22 20:56:26,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 20:56:26,006 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-22 20:56:26,006 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-22 20:56:26,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 20:56:26,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 20:56:26,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 20:56:26,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 20:56:26,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 20:56:26,112 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 20:56:26,114 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 20:56:26,430 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 20:56:26,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 20:56:26,436 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 20:56:26,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 08:56:26 BoogieIcfgContainer [2022-07-22 20:56:26,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 20:56:26,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 20:56:26,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 20:56:26,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 20:56:26,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 08:56:25" (1/3) ... [2022-07-22 20:56:26,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405d9aa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 08:56:26, skipping insertion in model container [2022-07-22 20:56:26,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:25" (2/3) ... [2022-07-22 20:56:26,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405d9aa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 08:56:26, skipping insertion in model container [2022-07-22 20:56:26,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 08:56:26" (3/3) ... [2022-07-22 20:56:26,445 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_3a.c.cil.c [2022-07-22 20:56:26,457 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 20:56:26,457 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-22 20:56:26,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 20:56:26,511 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@9518ff4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6bb373aa [2022-07-22 20:56:26,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-22 20:56:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 86 states have (on average 1.697674418604651) internal successors, (146), 89 states have internal predecessors, (146), 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) [2022-07-22 20:56:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-22 20:56:26,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 20:56:26,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 20:56:26,522 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 20:56:26,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 20:56:26,526 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-07-22 20:56:26,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 20:56:26,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433042806] [2022-07-22 20:56:26,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 20:56:26,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 20:56:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 20:56:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 20:56:26,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 20:56:26,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433042806] [2022-07-22 20:56:26,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433042806] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 20:56:26,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 20:56:26,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 20:56:26,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406643346] [2022-07-22 20:56:26,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 20:56:26,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 20:56:26,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 20:56:26,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 20:56:26,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 20:56:26,698 INFO L87 Difference]: Start difference. First operand has 96 states, 86 states have (on average 1.697674418604651) internal successors, (146), 89 states have internal predecessors, (146), 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) [2022-07-22 20:56:26,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 20:56:26,744 INFO L93 Difference]: Finished difference Result 187 states and 309 transitions. [2022-07-22 20:56:26,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 20:56:26,746 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 [2022-07-22 20:56:26,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 20:56:26,755 INFO L225 Difference]: With dead ends: 187 [2022-07-22 20:56:26,755 INFO L226 Difference]: Without dead ends: 87 [2022-07-22 20:56:26,759 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 [2022-07-22 20:56:26,768 INFO L413 NwaCegarLoop]: 139 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, 139 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 [2022-07-22 20:56:26,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 20:56:26,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-07-22 20:56:26,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-07-22 20:56:26,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 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) [2022-07-22 20:56:26,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 128 transitions. [2022-07-22 20:56:26,821 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 128 transitions. Word has length 7 [2022-07-22 20:56:26,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 20:56:26,822 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 128 transitions. [2022-07-22 20:56:26,823 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) [2022-07-22 20:56:26,823 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 128 transitions. [2022-07-22 20:56:26,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-22 20:56:26,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 20:56:26,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 20:56:26,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 20:56:26,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 20:56:26,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 20:56:26,827 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-07-22 20:56:26,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 20:56:26,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769551638] [2022-07-22 20:56:26,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 20:56:26,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 20:56:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 20:56:26,854 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 20:56:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 20:56:26,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 20:56:26,889 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 20:56:26,890 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-22 20:56:26,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-22 20:56:26,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 20:56:26,895 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 20:56:26,898 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 20:56:26,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 08:56:26 BoogieIcfgContainer [2022-07-22 20:56:26,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 20:56:26,921 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 20:56:26,921 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 20:56:26,921 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 20:56:26,922 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 08:56:26" (3/4) ... [2022-07-22 20:56:26,924 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 20:56:26,924 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 20:56:26,926 INFO L158 Benchmark]: Toolchain (without parser) took 1330.10ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 65.6MB in the beginning and 80.4MB in the end (delta: -14.8MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-07-22 20:56:26,926 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 20:56:26,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.71ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 65.2MB in the beginning and 99.2MB in the end (delta: -33.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 20:56:26,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.81ms. Allocated memory is still 127.9MB. Free memory was 99.2MB in the beginning and 96.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 20:56:26,931 INFO L158 Benchmark]: Boogie Preprocessor took 29.24ms. Allocated memory is still 127.9MB. Free memory was 96.9MB in the beginning and 95.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 20:56:26,932 INFO L158 Benchmark]: RCFGBuilder took 490.31ms. Allocated memory is still 127.9MB. Free memory was 95.0MB in the beginning and 76.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-22 20:56:26,932 INFO L158 Benchmark]: TraceAbstraction took 479.16ms. Allocated memory is still 127.9MB. Free memory was 75.5MB in the beginning and 80.4MB in the end (delta: -4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 20:56:26,932 INFO L158 Benchmark]: Witness Printer took 3.55ms. Allocated memory is still 127.9MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 20:56:26,938 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 98.6MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.71ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 65.2MB in the beginning and 99.2MB in the end (delta: -33.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.81ms. Allocated memory is still 127.9MB. Free memory was 99.2MB in the beginning and 96.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.24ms. Allocated memory is still 127.9MB. Free memory was 96.9MB in the beginning and 95.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 490.31ms. Allocated memory is still 127.9MB. Free memory was 95.0MB in the beginning and 76.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 479.16ms. Allocated memory is still 127.9MB. Free memory was 75.5MB in the beginning and 80.4MB in the end (delta: -4.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.55ms. Allocated memory is still 127.9MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) 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, 96 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 139 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, 139 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=96occurred 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 [2022-07-22 20:56:26,971 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 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_3a.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 31369bad6f1c83c546d17a52fbf2014a6a82af248db1b4a737df8b889fc9cfdd --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 20:56:28,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 20:56:28,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 20:56:28,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 20:56:28,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 20:56:28,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 20:56:28,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 20:56:28,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 20:56:28,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 20:56:28,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 20:56:28,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 20:56:28,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 20:56:28,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 20:56:28,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 20:56:28,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 20:56:28,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 20:56:28,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 20:56:28,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 20:56:28,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 20:56:28,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 20:56:28,825 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 20:56:28,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 20:56:28,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 20:56:28,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 20:56:28,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 20:56:28,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 20:56:28,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 20:56:28,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 20:56:28,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 20:56:28,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 20:56:28,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 20:56:28,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 20:56:28,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 20:56:28,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 20:56:28,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 20:56:28,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 20:56:28,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 20:56:28,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 20:56:28,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 20:56:28,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 20:56:28,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 20:56:28,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 20:56:28,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-22 20:56:28,881 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 20:56:28,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 20:56:28,882 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 20:56:28,882 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 20:56:28,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 20:56:28,883 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 20:56:28,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 20:56:28,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 20:56:28,884 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 20:56:28,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 20:56:28,885 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 20:56:28,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 20:56:28,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 20:56:28,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 20:56:28,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 20:56:28,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 20:56:28,887 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 20:56:28,887 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 20:56:28,887 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 20:56:28,888 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 20:56:28,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 20:56:28,888 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 20:56:28,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 20:56:28,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 20:56:28,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 20:56:28,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 20:56:28,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 20:56:28,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 20:56:28,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 20:56:28,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 20:56:28,890 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 20:56:28,890 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 20:56:28,891 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 20:56:28,891 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 20:56:28,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 20:56:28,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 20:56:28,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31369bad6f1c83c546d17a52fbf2014a6a82af248db1b4a737df8b889fc9cfdd [2022-07-22 20:56:29,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 20:56:29,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 20:56:29,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 20:56:29,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 20:56:29,251 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 20:56:29,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c [2022-07-22 20:56:29,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68d9d0e79/9ae01efe30d64c38b469fc414dcdd107/FLAG8151b8a67 [2022-07-22 20:56:29,755 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 20:56:29,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c [2022-07-22 20:56:29,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68d9d0e79/9ae01efe30d64c38b469fc414dcdd107/FLAG8151b8a67 [2022-07-22 20:56:29,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68d9d0e79/9ae01efe30d64c38b469fc414dcdd107 [2022-07-22 20:56:29,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 20:56:29,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 20:56:29,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 20:56:29,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 20:56:29,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 20:56:29,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 08:56:29" (1/1) ... [2022-07-22 20:56:29,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da07416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:29, skipping insertion in model container [2022-07-22 20:56:29,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 08:56:29" (1/1) ... [2022-07-22 20:56:29,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 20:56:29,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 20:56:30,023 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_3a.c.cil.c[1999,2012] [2022-07-22 20:56:30,045 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_3a.c.cil.c[2368,2381] [2022-07-22 20:56:30,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 20:56:30,110 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 20:56:30,132 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_3a.c.cil.c[1999,2012] [2022-07-22 20:56:30,135 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_3a.c.cil.c[2368,2381] [2022-07-22 20:56:30,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 20:56:30,186 INFO L208 MainTranslator]: Completed translation [2022-07-22 20:56:30,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:30 WrapperNode [2022-07-22 20:56:30,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 20:56:30,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 20:56:30,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 20:56:30,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 20:56:30,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:30" (1/1) ... [2022-07-22 20:56:30,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:30" (1/1) ... [2022-07-22 20:56:30,246 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-07-22 20:56:30,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 20:56:30,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 20:56:30,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 20:56:30,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 20:56:30,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:30" (1/1) ... [2022-07-22 20:56:30,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:30" (1/1) ... [2022-07-22 20:56:30,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:30" (1/1) ... [2022-07-22 20:56:30,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:30" (1/1) ... [2022-07-22 20:56:30,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:30" (1/1) ... [2022-07-22 20:56:30,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:30" (1/1) ... [2022-07-22 20:56:30,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:30" (1/1) ... [2022-07-22 20:56:30,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 20:56:30,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 20:56:30,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 20:56:30,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 20:56:30,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:30" (1/1) ... [2022-07-22 20:56:30,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 20:56:30,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 20:56:30,336 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) [2022-07-22 20:56:30,340 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 [2022-07-22 20:56:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 20:56:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 20:56:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-22 20:56:30,366 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-22 20:56:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 20:56:30,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 20:56:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 20:56:30,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 20:56:30,427 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 20:56:30,429 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 20:56:32,867 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 20:56:32,873 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 20:56:32,873 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 20:56:32,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 08:56:32 BoogieIcfgContainer [2022-07-22 20:56:32,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 20:56:32,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 20:56:32,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 20:56:32,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 20:56:32,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 08:56:29" (1/3) ... [2022-07-22 20:56:32,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa84d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 08:56:32, skipping insertion in model container [2022-07-22 20:56:32,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:56:30" (2/3) ... [2022-07-22 20:56:32,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa84d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 08:56:32, skipping insertion in model container [2022-07-22 20:56:32,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 08:56:32" (3/3) ... [2022-07-22 20:56:32,881 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_3a.c.cil.c [2022-07-22 20:56:32,892 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 20:56:32,892 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-22 20:56:32,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 20:56:32,934 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@41d9c4fa, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4a68da [2022-07-22 20:56:32,934 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-22 20:56:32,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-22 20:56:32,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-22 20:56:32,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 20:56:32,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 20:56:32,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 20:56:32,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 20:56:32,947 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-07-22 20:56:32,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 20:56:32,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158421180] [2022-07-22 20:56:32,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 20:56:32,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 20:56:32,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 20:56:32,963 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) [2022-07-22 20:56:32,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 20:56:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 20:56:33,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-22 20:56:33,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 20:56:33,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 20:56:33,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 20:56:33,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 20:56:33,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158421180] [2022-07-22 20:56:33,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1158421180] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 20:56:33,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 20:56:33,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 20:56:33,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603243039] [2022-07-22 20:56:33,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 20:56:33,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 20:56:33,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 20:56:33,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 20:56:33,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 20:56:33,399 INFO L87 Difference]: Start difference. First operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 20:56:33,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 20:56:33,426 INFO L93 Difference]: Finished difference Result 115 states and 173 transitions. [2022-07-22 20:56:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 20:56:33,428 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 [2022-07-22 20:56:33,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 20:56:33,433 INFO L225 Difference]: With dead ends: 115 [2022-07-22 20:56:33,434 INFO L226 Difference]: Without dead ends: 51 [2022-07-22 20:56:33,436 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 [2022-07-22 20:56:33,439 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 20:56:33,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 20:56:33,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-22 20:56:33,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-22 20:56:33,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-22 20:56:33,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-07-22 20:56:33,470 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2022-07-22 20:56:33,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 20:56:33,471 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-07-22 20:56:33,471 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) [2022-07-22 20:56:33,471 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-07-22 20:56:33,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-22 20:56:33,472 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 20:56:33,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 20:56:33,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-22 20:56:33,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 20:56:33,692 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 20:56:33,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 20:56:33,693 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-07-22 20:56:33,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 20:56:33,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935535293] [2022-07-22 20:56:33,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 20:56:33,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 20:56:33,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 20:56:33,699 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) [2022-07-22 20:56:33,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 20:57:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 20:57:40,543 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 20:58:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 20:58:10,542 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-22 20:58:10,542 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 20:58:10,543 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-22 20:58:10,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-22 20:58:10,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 20:58:10,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 20:58:10,749 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 20:58:10,752 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 20:58:10,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 08:58:10 BoogieIcfgContainer [2022-07-22 20:58:10,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 20:58:10,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 20:58:10,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 20:58:10,770 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 20:58:10,771 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 08:56:32" (3/4) ... [2022-07-22 20:58:10,772 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 20:58:10,799 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 20:58:10,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 20:58:10,800 INFO L158 Benchmark]: Toolchain (without parser) took 101018.65ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.5MB in the beginning and 36.7MB in the end (delta: -7.2MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-07-22 20:58:10,801 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 52.4MB. Free memory was 33.9MB in the beginning and 33.9MB in the end (delta: 38.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 20:58:10,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.43ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.3MB in the beginning and 46.5MB in the end (delta: -17.2MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-07-22 20:58:10,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.18ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 44.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 20:58:10,802 INFO L158 Benchmark]: Boogie Preprocessor took 57.59ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 42.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 20:58:10,803 INFO L158 Benchmark]: RCFGBuilder took 2568.28ms. Allocated memory is still 67.1MB. Free memory was 42.7MB in the beginning and 45.1MB in the end (delta: -2.4MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-07-22 20:58:10,803 INFO L158 Benchmark]: TraceAbstraction took 97893.43ms. Allocated memory is still 67.1MB. Free memory was 44.6MB in the beginning and 38.7MB in the end (delta: 5.9MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-07-22 20:58:10,804 INFO L158 Benchmark]: Witness Printer took 29.58ms. Allocated memory is still 67.1MB. Free memory was 38.4MB in the beginning and 36.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 20:58:10,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 52.4MB. Free memory was 33.9MB in the beginning and 33.9MB in the end (delta: 38.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 403.43ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.3MB in the beginning and 46.5MB in the end (delta: -17.2MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.18ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 44.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.59ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 42.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2568.28ms. Allocated memory is still 67.1MB. Free memory was 42.7MB in the beginning and 45.1MB in the end (delta: -2.4MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 97893.43ms. Allocated memory is still 67.1MB. Free memory was 44.6MB in the beginning and 38.7MB in the end (delta: 5.9MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Witness Printer took 29.58ms. Allocated memory is still 67.1MB. Free memory was 38.4MB in the beginning and 36.7MB in the end (delta: 1.7MB). 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: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9999999403953552, 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, 60 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 97.8s, 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, 81 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 81 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 67.1s 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! [2022-07-22 20:58:10,883 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE