./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 08:14:24,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 08:14:24,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 08:14:24,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 08:14:24,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 08:14:24,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 08:14:24,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 08:14:24,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 08:14:24,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 08:14:24,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 08:14:24,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 08:14:24,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 08:14:24,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 08:14:24,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 08:14:24,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 08:14:24,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 08:14:24,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 08:14:24,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 08:14:24,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 08:14:24,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 08:14:24,894 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 08:14:24,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 08:14:24,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 08:14:24,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 08:14:24,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 08:14:24,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 08:14:24,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 08:14:24,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 08:14:24,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 08:14:24,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 08:14:24,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 08:14:24,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 08:14:24,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 08:14:24,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 08:14:24,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 08:14:24,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 08:14:24,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 08:14:24,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 08:14:24,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 08:14:24,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 08:14:24,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 08:14:24,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 08:14:24,920 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 08:14:24,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 08:14:24,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 08:14:24,951 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 08:14:24,951 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 08:14:24,952 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 08:14:24,952 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 08:14:24,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 08:14:24,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 08:14:24,953 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 08:14:24,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 08:14:24,963 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 08:14:24,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 08:14:24,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 08:14:24,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 08:14:24,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 08:14:24,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 08:14:24,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 08:14:24,965 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 08:14:24,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 08:14:24,966 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 08:14:24,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 08:14:24,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 08:14:24,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 08:14:24,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 08:14:24,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:14:24,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 08:14:24,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 08:14:24,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 08:14:24,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 08:14:24,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 08:14:24,968 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 08:14:24,969 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 08:14:24,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 08:14:24,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2022-07-21 08:14:25,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 08:14:25,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 08:14:25,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 08:14:25,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 08:14:25,298 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 08:14:25,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-07-21 08:14:25,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bddb7704/474c7e9be55a4dca91dfe2380a962974/FLAG2908fad4a [2022-07-21 08:14:25,802 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 08:14:25,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-07-21 08:14:25,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bddb7704/474c7e9be55a4dca91dfe2380a962974/FLAG2908fad4a [2022-07-21 08:14:26,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bddb7704/474c7e9be55a4dca91dfe2380a962974 [2022-07-21 08:14:26,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 08:14:26,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 08:14:26,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 08:14:26,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 08:14:26,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 08:14:26,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:14:26" (1/1) ... [2022-07-21 08:14:26,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f15bf40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:26, skipping insertion in model container [2022-07-21 08:14:26,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:14:26" (1/1) ... [2022-07-21 08:14:26,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 08:14:26,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 08:14:26,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-07-21 08:14:26,563 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-07-21 08:14:26,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:14:26,651 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 08:14:26,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-07-21 08:14:26,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-07-21 08:14:26,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:14:26,725 INFO L208 MainTranslator]: Completed translation [2022-07-21 08:14:26,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:26 WrapperNode [2022-07-21 08:14:26,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 08:14:26,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 08:14:26,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 08:14:26,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 08:14:26,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:26" (1/1) ... [2022-07-21 08:14:26,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:26" (1/1) ... [2022-07-21 08:14:26,789 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-07-21 08:14:26,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 08:14:26,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 08:14:26,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 08:14:26,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 08:14:26,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:26" (1/1) ... [2022-07-21 08:14:26,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:26" (1/1) ... [2022-07-21 08:14:26,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:26" (1/1) ... [2022-07-21 08:14:26,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:26" (1/1) ... [2022-07-21 08:14:26,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:26" (1/1) ... [2022-07-21 08:14:26,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:26" (1/1) ... [2022-07-21 08:14:26,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:26" (1/1) ... [2022-07-21 08:14:26,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 08:14:26,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 08:14:26,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 08:14:26,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 08:14:26,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:26" (1/1) ... [2022-07-21 08:14:26,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:14:26,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 08:14:26,861 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) [2022-07-21 08:14:26,883 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 [2022-07-21 08:14:26,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 08:14:26,905 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-21 08:14:26,906 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-21 08:14:26,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 08:14:26,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 08:14:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 08:14:26,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-21 08:14:26,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-21 08:14:27,005 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 08:14:27,007 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 08:14:27,342 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 08:14:27,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 08:14:27,349 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 08:14:27,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:14:27 BoogieIcfgContainer [2022-07-21 08:14:27,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 08:14:27,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 08:14:27,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 08:14:27,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 08:14:27,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:14:26" (1/3) ... [2022-07-21 08:14:27,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a71e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:14:27, skipping insertion in model container [2022-07-21 08:14:27,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:26" (2/3) ... [2022-07-21 08:14:27,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a71e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:14:27, skipping insertion in model container [2022-07-21 08:14:27,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:14:27" (3/3) ... [2022-07-21 08:14:27,358 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2022-07-21 08:14:27,371 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 08:14:27,371 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-21 08:14:27,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 08:14:27,425 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@536839d1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@f09f8ca [2022-07-21 08:14:27,426 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-21 08:14:27,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-21 08:14:27,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-21 08:14:27,435 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 08:14:27,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:14:27,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 08:14:27,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:14:27,441 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-07-21 08:14:27,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:14:27,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640185456] [2022-07-21 08:14:27,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:14:27,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:14:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:14:27,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:14:27,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:14:27,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640185456] [2022-07-21 08:14:27,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640185456] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:14:27,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:14:27,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 08:14:27,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824057305] [2022-07-21 08:14:27,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:14:27,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 08:14:27,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:14:27,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 08:14:27,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 08:14:27,624 INFO L87 Difference]: Start difference. First operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:14:27,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 08:14:27,681 INFO L93 Difference]: Finished difference Result 189 states and 311 transitions. [2022-07-21 08:14:27,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 08:14:27,683 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 [2022-07-21 08:14:27,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 08:14:27,691 INFO L225 Difference]: With dead ends: 189 [2022-07-21 08:14:27,691 INFO L226 Difference]: Without dead ends: 88 [2022-07-21 08:14:27,697 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 [2022-07-21 08:14:27,703 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 08:14:27,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 08:14:27,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-07-21 08:14:27,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-07-21 08:14:27,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-21 08:14:27,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 129 transitions. [2022-07-21 08:14:27,761 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 129 transitions. Word has length 7 [2022-07-21 08:14:27,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 08:14:27,762 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 129 transitions. [2022-07-21 08:14:27,762 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) [2022-07-21 08:14:27,762 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-07-21 08:14:27,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-21 08:14:27,764 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 08:14:27,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:14:27,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 08:14:27,764 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 08:14:27,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:14:27,765 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-07-21 08:14:27,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:14:27,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113708494] [2022-07-21 08:14:27,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:14:27,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:14:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:14:27,793 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 08:14:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:14:27,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 08:14:27,852 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 08:14:27,854 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-21 08:14:27,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-21 08:14:27,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 08:14:27,859 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 08:14:27,861 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 08:14:27,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:14:27 BoogieIcfgContainer [2022-07-21 08:14:27,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 08:14:27,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 08:14:27,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 08:14:27,885 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 08:14:27,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:14:27" (3/4) ... [2022-07-21 08:14:27,888 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 08:14:27,888 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 08:14:27,889 INFO L158 Benchmark]: Toolchain (without parser) took 1563.16ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 32.3MB in the beginning and 46.9MB in the end (delta: -14.6MB). Peak memory consumption was 687.3kB. Max. memory is 16.1GB. [2022-07-21 08:14:27,890 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 36.1MB in the beginning and 36.0MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:14:27,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.74ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 32.7MB in the end (delta: -607.4kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 08:14:27,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.40ms. Allocated memory is still 54.5MB. Free memory was 32.7MB in the beginning and 30.5MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-21 08:14:27,894 INFO L158 Benchmark]: Boogie Preprocessor took 41.59ms. Allocated memory is still 54.5MB. Free memory was 30.5MB in the beginning and 28.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:14:27,895 INFO L158 Benchmark]: RCFGBuilder took 518.21ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 28.6MB in the beginning and 37.0MB in the end (delta: -8.4MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2022-07-21 08:14:27,895 INFO L158 Benchmark]: TraceAbstraction took 530.80ms. Allocated memory is still 69.2MB. Free memory was 36.5MB in the beginning and 47.3MB in the end (delta: -10.8MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-07-21 08:14:27,895 INFO L158 Benchmark]: Witness Printer took 3.56ms. Allocated memory is still 69.2MB. Free memory was 47.3MB in the beginning and 46.9MB in the end (delta: 358.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:14:27,901 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 36.1MB in the beginning and 36.0MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.74ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 32.7MB in the end (delta: -607.4kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.40ms. Allocated memory is still 54.5MB. Free memory was 32.7MB in the beginning and 30.5MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.59ms. Allocated memory is still 54.5MB. Free memory was 30.5MB in the beginning and 28.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 518.21ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 28.6MB in the beginning and 37.0MB in the end (delta: -8.4MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * TraceAbstraction took 530.80ms. Allocated memory is still 69.2MB. Free memory was 36.5MB in the beginning and 47.3MB in the end (delta: -10.8MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 3.56ms. Allocated memory is still 69.2MB. Free memory was 47.3MB in the beginning and 46.9MB in the end (delta: 358.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=49, x=49] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=49, x=49] [L48] reach_error() VAL [IN=49, x=49] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 97 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 140 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-21 08:14:27,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 08:14:29,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 08:14:29,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 08:14:29,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 08:14:29,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 08:14:29,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 08:14:29,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 08:14:29,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 08:14:29,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 08:14:29,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 08:14:29,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 08:14:29,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 08:14:29,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 08:14:29,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 08:14:29,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 08:14:29,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 08:14:29,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 08:14:29,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 08:14:29,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 08:14:29,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 08:14:29,862 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 08:14:29,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 08:14:29,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 08:14:29,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 08:14:29,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 08:14:29,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 08:14:29,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 08:14:29,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 08:14:29,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 08:14:29,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 08:14:29,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 08:14:29,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 08:14:29,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 08:14:29,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 08:14:29,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 08:14:29,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 08:14:29,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 08:14:29,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 08:14:29,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 08:14:29,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 08:14:29,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 08:14:29,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 08:14:29,893 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 08:14:29,924 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 08:14:29,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 08:14:29,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 08:14:29,925 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 08:14:29,926 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 08:14:29,926 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 08:14:29,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 08:14:29,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 08:14:29,928 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 08:14:29,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 08:14:29,929 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 08:14:29,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 08:14:29,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 08:14:29,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 08:14:29,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 08:14:29,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 08:14:29,939 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 08:14:29,939 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 08:14:29,939 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 08:14:29,940 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 08:14:29,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 08:14:29,940 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 08:14:29,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 08:14:29,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 08:14:29,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 08:14:29,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 08:14:29,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:14:29,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 08:14:29,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 08:14:29,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 08:14:29,942 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 08:14:29,942 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 08:14:29,942 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 08:14:29,943 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 08:14:29,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 08:14:29,943 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 08:14:29,943 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2022-07-21 08:14:30,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 08:14:30,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 08:14:30,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 08:14:30,284 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 08:14:30,284 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 08:14:30,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-07-21 08:14:30,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45a8d8f87/81877d7aaa754eed8e44b751508e7b34/FLAG2cccb2cd1 [2022-07-21 08:14:30,818 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 08:14:30,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-07-21 08:14:30,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45a8d8f87/81877d7aaa754eed8e44b751508e7b34/FLAG2cccb2cd1 [2022-07-21 08:14:30,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45a8d8f87/81877d7aaa754eed8e44b751508e7b34 [2022-07-21 08:14:30,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 08:14:30,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 08:14:30,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 08:14:30,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 08:14:30,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 08:14:30,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:14:30" (1/1) ... [2022-07-21 08:14:30,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@319ff90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:30, skipping insertion in model container [2022-07-21 08:14:30,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:14:30" (1/1) ... [2022-07-21 08:14:30,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 08:14:30,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 08:14:31,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-07-21 08:14:31,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-07-21 08:14:31,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:14:31,074 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 08:14:31,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-07-21 08:14:31,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-07-21 08:14:31,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:14:31,137 INFO L208 MainTranslator]: Completed translation [2022-07-21 08:14:31,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:31 WrapperNode [2022-07-21 08:14:31,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 08:14:31,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 08:14:31,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 08:14:31,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 08:14:31,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:31" (1/1) ... [2022-07-21 08:14:31,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:31" (1/1) ... [2022-07-21 08:14:31,174 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-07-21 08:14:31,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 08:14:31,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 08:14:31,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 08:14:31,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 08:14:31,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:31" (1/1) ... [2022-07-21 08:14:31,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:31" (1/1) ... [2022-07-21 08:14:31,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:31" (1/1) ... [2022-07-21 08:14:31,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:31" (1/1) ... [2022-07-21 08:14:31,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:31" (1/1) ... [2022-07-21 08:14:31,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:31" (1/1) ... [2022-07-21 08:14:31,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:31" (1/1) ... [2022-07-21 08:14:31,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 08:14:31,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 08:14:31,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 08:14:31,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 08:14:31,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:31" (1/1) ... [2022-07-21 08:14:31,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:14:31,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 08:14:31,272 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) [2022-07-21 08:14:31,284 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 [2022-07-21 08:14:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 08:14:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 08:14:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-21 08:14:31,320 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-21 08:14:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 08:14:31,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 08:14:31,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-21 08:14:31,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-21 08:14:31,394 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 08:14:31,395 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 08:14:33,895 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 08:14:33,900 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 08:14:33,900 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 08:14:33,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:14:33 BoogieIcfgContainer [2022-07-21 08:14:33,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 08:14:33,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 08:14:33,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 08:14:33,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 08:14:33,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:14:30" (1/3) ... [2022-07-21 08:14:33,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee4406c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:14:33, skipping insertion in model container [2022-07-21 08:14:33,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:14:31" (2/3) ... [2022-07-21 08:14:33,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee4406c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:14:33, skipping insertion in model container [2022-07-21 08:14:33,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:14:33" (3/3) ... [2022-07-21 08:14:33,908 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2022-07-21 08:14:33,919 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 08:14:33,919 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-21 08:14:33,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 08:14:33,962 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@885ea1f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3208fa89 [2022-07-21 08:14:33,963 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-21 08:14:33,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-21 08:14:33,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-21 08:14:33,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 08:14:33,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:14:33,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 08:14:33,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:14:33,979 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-07-21 08:14:33,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 08:14:33,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128243147] [2022-07-21 08:14:33,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:14:33,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 08:14:33,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 08:14:33,993 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) [2022-07-21 08:14:33,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 08:14:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:14:34,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 08:14:34,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 08:14:34,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:14:34,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 08:14:34,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 08:14:34,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128243147] [2022-07-21 08:14:34,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128243147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:14:34,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:14:34,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 08:14:34,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941264121] [2022-07-21 08:14:34,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:14:34,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 08:14:34,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 08:14:34,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 08:14:34,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 08:14:34,537 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:14:34,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 08:14:34,571 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-07-21 08:14:34,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 08:14:34,572 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 [2022-07-21 08:14:34,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 08:14:34,579 INFO L225 Difference]: With dead ends: 117 [2022-07-21 08:14:34,579 INFO L226 Difference]: Without dead ends: 52 [2022-07-21 08:14:34,582 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 [2022-07-21 08:14:34,585 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 08:14:34,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 08:14:34,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-21 08:14:34,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-07-21 08:14:34,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-21 08:14:34,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-07-21 08:14:34,617 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-07-21 08:14:34,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 08:14:34,617 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-07-21 08:14:34,618 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) [2022-07-21 08:14:34,618 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-07-21 08:14:34,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-21 08:14:34,618 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 08:14:34,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:14:34,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 08:14:34,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 08:14:34,841 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 08:14:34,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:14:34,842 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-07-21 08:14:34,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 08:14:34,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962820879] [2022-07-21 08:14:34,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:14:34,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 08:14:34,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 08:14:34,844 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) [2022-07-21 08:14:34,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 08:15:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:15:43,111 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 08:16:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:16:28,942 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-21 08:16:28,942 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 08:16:28,943 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-21 08:16:28,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-21 08:16:28,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 08:16:29,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 08:16:29,148 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 08:16:29,151 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 08:16:29,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:16:29 BoogieIcfgContainer [2022-07-21 08:16:29,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 08:16:29,172 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 08:16:29,172 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 08:16:29,172 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 08:16:29,173 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:14:33" (3/4) ... [2022-07-21 08:16:29,177 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 08:16:29,208 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 08:16:29,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 08:16:29,209 INFO L158 Benchmark]: Toolchain (without parser) took 118364.76ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 39.2MB in the beginning and 47.0MB in the end (delta: -7.9MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-07-21 08:16:29,210 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 42.7MB in the beginning and 42.6MB in the end (delta: 52.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:16:29,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.65ms. Allocated memory is still 60.8MB. Free memory was 38.9MB in the beginning and 39.7MB in the end (delta: -762.1kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 08:16:29,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.02ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 37.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:16:29,211 INFO L158 Benchmark]: Boogie Preprocessor took 60.05ms. Allocated memory is still 60.8MB. Free memory was 37.7MB in the beginning and 36.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:16:29,212 INFO L158 Benchmark]: RCFGBuilder took 2666.74ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 36.0MB in the beginning and 53.3MB in the end (delta: -17.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 08:16:29,212 INFO L158 Benchmark]: TraceAbstraction took 115266.77ms. Allocated memory is still 77.6MB. Free memory was 52.7MB in the beginning and 48.8MB in the end (delta: 3.9MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2022-07-21 08:16:29,212 INFO L158 Benchmark]: Witness Printer took 37.30ms. Allocated memory is still 77.6MB. Free memory was 48.8MB in the beginning and 47.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:16:29,214 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 42.7MB in the beginning and 42.6MB in the end (delta: 52.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.65ms. Allocated memory is still 60.8MB. Free memory was 38.9MB in the beginning and 39.7MB in the end (delta: -762.1kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.02ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 37.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.05ms. Allocated memory is still 60.8MB. Free memory was 37.7MB in the beginning and 36.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2666.74ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 36.0MB in the beginning and 53.3MB in the end (delta: -17.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 115266.77ms. Allocated memory is still 77.6MB. Free memory was 52.7MB in the beginning and 48.8MB in the end (delta: 3.9MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Witness Printer took 37.30ms. Allocated memory is still 77.6MB. Free memory was 48.8MB in the beginning and 47.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9999999403953552, result=1.3984375, x=0.9999999403953552] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999999403953552, result=1.3984375, x=0.9999999403953552] [L48] reach_error() VAL [IN=0.9999999403953552, result=1.3984375, x=0.9999999403953552] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 115.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 82 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 68.6s SatisfiabilityAnalysisTime, 0.1s 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! [2022-07-21 08:16:29,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE