./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_1+soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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_1+soft_float_4-2a.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 5af10be63cc32bea05b0693de4e6da336982b76ff2f5b4edc2ff1c6a5e6322ec --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 21:19:00,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:19:00,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:19:00,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:19:00,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:19:00,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:19:00,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:19:00,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:19:00,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:19:00,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:19:00,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:19:00,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:19:00,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:19:00,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:19:00,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:19:00,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:19:00,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:19:00,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:19:00,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:19:00,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:19:00,155 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:19:00,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:19:00,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:19:00,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:19:00,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:19:00,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:19:00,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:19:00,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:19:00,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:19:00,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:19:00,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:19:00,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:19:00,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:19:00,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:19:00,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:19:00,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:19:00,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:19:00,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:19:00,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:19:00,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:19:00,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:19:00,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:19:00,171 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 21:19:00,200 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:19:00,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:19:00,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:19:00,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:19:00,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:19:00,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:19:00,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:19:00,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:19:00,203 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:19:00,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:19:00,204 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:19:00,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 21:19:00,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:19:00,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:19:00,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:19:00,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:19:00,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:19:00,205 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:19:00,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:19:00,205 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:19:00,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:19:00,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:19:00,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:19:00,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:19:00,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:19:00,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:19:00,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:19:00,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:19:00,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 21:19:00,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 21:19:00,208 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:19:00,208 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:19:00,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:19:00,208 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5af10be63cc32bea05b0693de4e6da336982b76ff2f5b4edc2ff1c6a5e6322ec [2022-07-13 21:19:00,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:19:00,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:19:00,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:19:00,470 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:19:00,470 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:19:00,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_1+soft_float_4-2a.c.cil.c [2022-07-13 21:19:00,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75f44bea6/e9943fa28c094b8ca65d83a79fe2aa8c/FLAG21893f8ff [2022-07-13 21:19:01,021 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:19:01,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_4-2a.c.cil.c [2022-07-13 21:19:01,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75f44bea6/e9943fa28c094b8ca65d83a79fe2aa8c/FLAG21893f8ff [2022-07-13 21:19:01,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75f44bea6/e9943fa28c094b8ca65d83a79fe2aa8c [2022-07-13 21:19:01,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:19:01,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:19:01,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:19:01,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:19:01,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:19:01,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:19:01" (1/1) ... [2022-07-13 21:19:01,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c85ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:01, skipping insertion in model container [2022-07-13 21:19:01,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:19:01" (1/1) ... [2022-07-13 21:19:01,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:19:01,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:19:01,789 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_1+soft_float_4-2a.c.cil.c[1996,2009] [2022-07-13 21:19:01,795 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_1+soft_float_4-2a.c.cil.c[2390,2403] [2022-07-13 21:19:01,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:19:01,875 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:19:01,895 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_1+soft_float_4-2a.c.cil.c[1996,2009] [2022-07-13 21:19:01,897 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_1+soft_float_4-2a.c.cil.c[2390,2403] [2022-07-13 21:19:01,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:19:01,936 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:19:01,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:01 WrapperNode [2022-07-13 21:19:01,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:19:01,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:19:01,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:19:01,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:19:01,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:01" (1/1) ... [2022-07-13 21:19:01,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:01" (1/1) ... [2022-07-13 21:19:01,989 INFO L137 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2022-07-13 21:19:01,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:19:01,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:19:01,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:19:01,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:19:01,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:01" (1/1) ... [2022-07-13 21:19:01,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:01" (1/1) ... [2022-07-13 21:19:02,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:01" (1/1) ... [2022-07-13 21:19:02,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:01" (1/1) ... [2022-07-13 21:19:02,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:01" (1/1) ... [2022-07-13 21:19:02,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:01" (1/1) ... [2022-07-13 21:19:02,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:01" (1/1) ... [2022-07-13 21:19:02,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:19:02,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:19:02,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:19:02,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:19:02,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:01" (1/1) ... [2022-07-13 21:19:02,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:19:02,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:19:02,077 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) [2022-07-13 21:19:02,101 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 [2022-07-13 21:19:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:19:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-13 21:19:02,117 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-13 21:19:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-07-13 21:19:02,118 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-07-13 21:19:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 21:19:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:19:02,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:19:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-13 21:19:02,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-13 21:19:02,214 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:19:02,216 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:19:02,545 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:19:02,552 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:19:02,552 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 21:19:02,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:19:02 BoogieIcfgContainer [2022-07-13 21:19:02,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:19:02,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:19:02,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:19:02,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:19:02,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:19:01" (1/3) ... [2022-07-13 21:19:02,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f2127b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:19:02, skipping insertion in model container [2022-07-13 21:19:02,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:01" (2/3) ... [2022-07-13 21:19:02,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f2127b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:19:02, skipping insertion in model container [2022-07-13 21:19:02,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:19:02" (3/3) ... [2022-07-13 21:19:02,572 INFO L111 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_4-2a.c.cil.c [2022-07-13 21:19:02,584 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:19:02,584 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 21:19:02,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:19:02,656 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@6bcfa706, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@8ad7914 [2022-07-13 21:19:02,656 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-13 21:19:02,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 83 states have (on average 1.6746987951807228) internal successors, (139), 85 states have internal predecessors, (139), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-13 21:19:02,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 21:19:02,675 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 21:19:02,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:19:02,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 21:19:02,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:19:02,682 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-07-13 21:19:02,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:19:02,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923968593] [2022-07-13 21:19:02,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:19:02,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:19:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:19:02,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:19:02,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:19:02,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923968593] [2022-07-13 21:19:02,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923968593] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:19:02,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:19:02,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 21:19:02,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023765695] [2022-07-13 21:19:02,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:19:02,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 21:19:02,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:19:02,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 21:19:02,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 21:19:02,857 INFO L87 Difference]: Start difference. First operand has 97 states, 83 states have (on average 1.6746987951807228) internal successors, (139), 85 states have internal predecessors, (139), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) 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) [2022-07-13 21:19:02,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 21:19:02,914 INFO L93 Difference]: Finished difference Result 189 states and 310 transitions. [2022-07-13 21:19:02,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 21:19:02,917 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 [2022-07-13 21:19:02,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 21:19:02,925 INFO L225 Difference]: With dead ends: 189 [2022-07-13 21:19:02,925 INFO L226 Difference]: Without dead ends: 90 [2022-07-13 21:19:02,936 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 [2022-07-13 21:19:02,940 INFO L413 NwaCegarLoop]: 134 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, 134 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 [2022-07-13 21:19:02,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 21:19:02,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-07-13 21:19:02,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-07-13 21:19:02,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 77 states have (on average 1.4415584415584415) internal successors, (111), 79 states have internal predecessors, (111), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 21:19:02,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 126 transitions. [2022-07-13 21:19:02,985 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 126 transitions. Word has length 7 [2022-07-13 21:19:02,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 21:19:02,985 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 126 transitions. [2022-07-13 21:19:02,986 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) [2022-07-13 21:19:02,986 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 126 transitions. [2022-07-13 21:19:02,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 21:19:02,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 21:19:02,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:19:02,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 21:19:02,988 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 21:19:02,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:19:02,989 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-07-13 21:19:02,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:19:02,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849097939] [2022-07-13 21:19:02,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:19:02,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:19:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:19:03,017 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:19:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:19:03,063 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 21:19:03,064 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:19:03,065 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-13 21:19:03,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-13 21:19:03,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 21:19:03,071 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 21:19:03,074 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 21:19:03,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 09:19:03 BoogieIcfgContainer [2022-07-13 21:19:03,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 21:19:03,097 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 21:19:03,097 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 21:19:03,098 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 21:19:03,098 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:19:02" (3/4) ... [2022-07-13 21:19:03,101 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 21:19:03,101 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 21:19:03,102 INFO L158 Benchmark]: Toolchain (without parser) took 1545.15ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 86.1MB in the beginning and 91.4MB in the end (delta: -5.3MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2022-07-13 21:19:03,103 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:19:03,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.84ms. Allocated memory is still 111.1MB. Free memory was 85.8MB in the beginning and 81.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 21:19:03,106 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.98ms. Allocated memory is still 111.1MB. Free memory was 81.2MB in the beginning and 79.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:19:03,108 INFO L158 Benchmark]: Boogie Preprocessor took 54.65ms. Allocated memory is still 111.1MB. Free memory was 79.6MB in the beginning and 77.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:19:03,108 INFO L158 Benchmark]: RCFGBuilder took 517.55ms. Allocated memory is still 111.1MB. Free memory was 77.7MB in the beginning and 59.9MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-13 21:19:03,109 INFO L158 Benchmark]: TraceAbstraction took 531.01ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 59.3MB in the beginning and 91.4MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:19:03,109 INFO L158 Benchmark]: Witness Printer took 3.72ms. Allocated memory is still 134.2MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:19:03,115 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.84ms. Allocated memory is still 111.1MB. Free memory was 85.8MB in the beginning and 81.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.98ms. Allocated memory is still 111.1MB. Free memory was 81.2MB in the beginning and 79.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.65ms. Allocated memory is still 111.1MB. Free memory was 79.6MB in the beginning and 77.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 517.55ms. Allocated memory is still 111.1MB. Free memory was 77.7MB in the beginning and 59.9MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 531.01ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 59.3MB in the beginning and 91.4MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.72ms. Allocated memory is still 134.2MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L310] COND TRUE __VERIFIER_nondet_int() [L311] 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 < 1.39f) VAL [IN=49, x=49] [L48] reach_error() VAL [IN=49, x=49] - UnprovableResult [Line: 61]: 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 4 procedures, 97 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 134 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, 134 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 [2022-07-13 21:19:03,150 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_1+soft_float_4-2a.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 5af10be63cc32bea05b0693de4e6da336982b76ff2f5b4edc2ff1c6a5e6322ec --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 21:19:05,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:19:05,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:19:05,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:19:05,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:19:05,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:19:05,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:19:05,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:19:05,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:19:05,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:19:05,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:19:05,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:19:05,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:19:05,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:19:05,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:19:05,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:19:05,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:19:05,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:19:05,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:19:05,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:19:05,124 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:19:05,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:19:05,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:19:05,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:19:05,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:19:05,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:19:05,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:19:05,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:19:05,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:19:05,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:19:05,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:19:05,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:19:05,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:19:05,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:19:05,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:19:05,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:19:05,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:19:05,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:19:05,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:19:05,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:19:05,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:19:05,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:19:05,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 21:19:05,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:19:05,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:19:05,193 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:19:05,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:19:05,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:19:05,194 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:19:05,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:19:05,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:19:05,195 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:19:05,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:19:05,196 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:19:05,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:19:05,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:19:05,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:19:05,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:19:05,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:19:05,198 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 21:19:05,198 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 21:19:05,198 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 21:19:05,198 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:19:05,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:19:05,199 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:19:05,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:19:05,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:19:05,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:19:05,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:19:05,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:19:05,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:19:05,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:19:05,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:19:05,201 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 21:19:05,201 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 21:19:05,201 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:19:05,202 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:19:05,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:19:05,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 21:19:05,202 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5af10be63cc32bea05b0693de4e6da336982b76ff2f5b4edc2ff1c6a5e6322ec [2022-07-13 21:19:05,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:19:05,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:19:05,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:19:05,549 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:19:05,549 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:19:05,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_1+soft_float_4-2a.c.cil.c [2022-07-13 21:19:05,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/748ae4513/4fdd8ddad134494786d807e6cc343351/FLAGa4b69248d [2022-07-13 21:19:06,069 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:19:06,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_4-2a.c.cil.c [2022-07-13 21:19:06,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/748ae4513/4fdd8ddad134494786d807e6cc343351/FLAGa4b69248d [2022-07-13 21:19:06,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/748ae4513/4fdd8ddad134494786d807e6cc343351 [2022-07-13 21:19:06,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:19:06,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:19:06,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:19:06,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:19:06,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:19:06,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:19:06" (1/1) ... [2022-07-13 21:19:06,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73243afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:06, skipping insertion in model container [2022-07-13 21:19:06,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:19:06" (1/1) ... [2022-07-13 21:19:06,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:19:06,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:19:06,634 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_1+soft_float_4-2a.c.cil.c[1996,2009] [2022-07-13 21:19:06,639 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_1+soft_float_4-2a.c.cil.c[2390,2403] [2022-07-13 21:19:06,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:19:06,744 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:19:06,768 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_4-2a.c.cil.c[1996,2009] [2022-07-13 21:19:06,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_4-2a.c.cil.c[2390,2403] [2022-07-13 21:19:06,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:19:06,830 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:19:06,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:06 WrapperNode [2022-07-13 21:19:06,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:19:06,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:19:06,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:19:06,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:19:06,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:06" (1/1) ... [2022-07-13 21:19:06,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:06" (1/1) ... [2022-07-13 21:19:06,890 INFO L137 Inliner]: procedures = 28, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2022-07-13 21:19:06,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:19:06,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:19:06,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:19:06,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:19:06,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:06" (1/1) ... [2022-07-13 21:19:06,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:06" (1/1) ... [2022-07-13 21:19:06,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:06" (1/1) ... [2022-07-13 21:19:06,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:06" (1/1) ... [2022-07-13 21:19:06,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:06" (1/1) ... [2022-07-13 21:19:06,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:06" (1/1) ... [2022-07-13 21:19:06,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:06" (1/1) ... [2022-07-13 21:19:06,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:19:06,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:19:06,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:19:06,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:19:06,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:06" (1/1) ... [2022-07-13 21:19:06,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:19:06,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:19:06,978 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) [2022-07-13 21:19:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:19:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 21:19:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-13 21:19:07,023 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-13 21:19:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-07-13 21:19:07,023 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-07-13 21:19:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:19:07,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:19:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-13 21:19:07,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-13 21:19:07,001 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 [2022-07-13 21:19:07,109 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:19:07,110 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:19:09,601 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:19:09,609 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:19:09,609 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 21:19:09,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:19:09 BoogieIcfgContainer [2022-07-13 21:19:09,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:19:09,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:19:09,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:19:09,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:19:09,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:19:06" (1/3) ... [2022-07-13 21:19:09,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526a496b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:19:09, skipping insertion in model container [2022-07-13 21:19:09,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:19:06" (2/3) ... [2022-07-13 21:19:09,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526a496b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:19:09, skipping insertion in model container [2022-07-13 21:19:09,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:19:09" (3/3) ... [2022-07-13 21:19:09,618 INFO L111 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_4-2a.c.cil.c [2022-07-13 21:19:09,631 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:19:09,631 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 21:19:09,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:19:09,684 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@3b5e45e5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@436b6ee6 [2022-07-13 21:19:09,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-13 21:19:09,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 49 states have (on average 1.489795918367347) internal successors, (73), 51 states have internal predecessors, (73), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-13 21:19:09,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 21:19:09,693 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 21:19:09,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:19:09,694 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 21:19:09,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:19:09,698 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-07-13 21:19:09,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 21:19:09,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506895986] [2022-07-13 21:19:09,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:19:09,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 21:19:09,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 21:19:09,713 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) [2022-07-13 21:19:09,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 21:19:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:19:10,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 21:19:10,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 21:19:10,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:19:10,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 21:19:10,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 21:19:10,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506895986] [2022-07-13 21:19:10,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506895986] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:19:10,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:19:10,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 21:19:10,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917367314] [2022-07-13 21:19:10,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:19:10,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 21:19:10,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 21:19:10,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 21:19:10,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 21:19:10,169 INFO L87 Difference]: Start difference. First operand has 63 states, 49 states have (on average 1.489795918367347) internal successors, (73), 51 states have internal predecessors, (73), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) 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) [2022-07-13 21:19:10,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 21:19:10,193 INFO L93 Difference]: Finished difference Result 121 states and 178 transitions. [2022-07-13 21:19:10,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 21:19:10,195 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 [2022-07-13 21:19:10,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 21:19:10,202 INFO L225 Difference]: With dead ends: 121 [2022-07-13 21:19:10,202 INFO L226 Difference]: Without dead ends: 56 [2022-07-13 21:19:10,205 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 [2022-07-13 21:19:10,208 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 21:19:10,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 21:19:10,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-07-13 21:19:10,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-07-13 21:19:10,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 45 states have internal predecessors, (58), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 21:19:10,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 73 transitions. [2022-07-13 21:19:10,240 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 73 transitions. Word has length 7 [2022-07-13 21:19:10,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 21:19:10,241 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 73 transitions. [2022-07-13 21:19:10,242 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) [2022-07-13 21:19:10,242 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 73 transitions. [2022-07-13 21:19:10,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 21:19:10,242 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 21:19:10,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:19:10,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-13 21:19:10,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 21:19:10,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 21:19:10,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:19:10,445 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-07-13 21:19:10,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 21:19:10,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637263571] [2022-07-13 21:19:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:19:10,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 21:19:10,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 21:19:10,447 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) [2022-07-13 21:19:10,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 21:21:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:21:52,184 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:22:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:22:49,313 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-13 21:22:49,314 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:22:49,316 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-13 21:22:49,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-13 21:22:49,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-13 21:22:49,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 21:22:49,521 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 21:22:49,524 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 21:22:49,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 09:22:49 BoogieIcfgContainer [2022-07-13 21:22:49,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 21:22:49,548 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 21:22:49,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 21:22:49,548 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 21:22:49,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:19:09" (3/4) ... [2022-07-13 21:22:49,550 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-13 21:22:49,574 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 21:22:49,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 21:22:49,575 INFO L158 Benchmark]: Toolchain (without parser) took 223131.50ms. Allocated memory is still 71.3MB. Free memory was 52.2MB in the beginning and 30.0MB in the end (delta: 22.2MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-07-13 21:22:49,576 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 71.3MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:22:49,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.26ms. Allocated memory is still 71.3MB. Free memory was 52.1MB in the beginning and 50.3MB in the end (delta: 1.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 21:22:49,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.61ms. Allocated memory is still 71.3MB. Free memory was 50.3MB in the beginning and 48.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:22:49,577 INFO L158 Benchmark]: Boogie Preprocessor took 56.59ms. Allocated memory is still 71.3MB. Free memory was 48.6MB in the beginning and 46.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:22:49,577 INFO L158 Benchmark]: RCFGBuilder took 2662.55ms. Allocated memory is still 71.3MB. Free memory was 46.8MB in the beginning and 33.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 21:22:49,578 INFO L158 Benchmark]: TraceAbstraction took 219934.06ms. Allocated memory is still 71.3MB. Free memory was 33.0MB in the beginning and 31.8MB in the end (delta: 1.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2022-07-13 21:22:49,578 INFO L158 Benchmark]: Witness Printer took 26.92ms. Allocated memory is still 71.3MB. Free memory was 31.8MB in the beginning and 30.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:22:49,580 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 71.3MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.26ms. Allocated memory is still 71.3MB. Free memory was 52.1MB in the beginning and 50.3MB in the end (delta: 1.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.61ms. Allocated memory is still 71.3MB. Free memory was 50.3MB in the beginning and 48.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.59ms. Allocated memory is still 71.3MB. Free memory was 48.6MB in the beginning and 46.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2662.55ms. Allocated memory is still 71.3MB. Free memory was 46.8MB in the beginning and 33.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 219934.06ms. Allocated memory is still 71.3MB. Free memory was 33.0MB in the beginning and 31.8MB in the end (delta: 1.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Witness Printer took 26.92ms. Allocated memory is still 71.3MB. Free memory was 31.8MB in the beginning and 30.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L310] COND TRUE __VERIFIER_nondet_int() [L311] 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=0.9793358445167542, result=1.3925530910491943, x=0.9793358445167542] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=0.9793358445167542, result=1.3925530910491943, x=0.9793358445167542] [L48] reach_error() VAL [IN=0.9793358445167542, result=1.3925530910491943, x=0.9793358445167542] - UnprovableResult [Line: 61]: 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 4 procedures, 63 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 219.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 81 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred 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, 162.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-13 21:22:49,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE