./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 09:39:54,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 09:39:54,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 09:39:54,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 09:39:54,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 09:39:54,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 09:39:54,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 09:39:54,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 09:39:54,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 09:39:54,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 09:39:54,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 09:39:54,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 09:39:54,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 09:39:54,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 09:39:54,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 09:39:54,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 09:39:54,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 09:39:54,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 09:39:54,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 09:39:54,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 09:39:54,309 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 09:39:54,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 09:39:54,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 09:39:54,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 09:39:54,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 09:39:54,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 09:39:54,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 09:39:54,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 09:39:54,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 09:39:54,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 09:39:54,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 09:39:54,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 09:39:54,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 09:39:54,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 09:39:54,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 09:39:54,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 09:39:54,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 09:39:54,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 09:39:54,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 09:39:54,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 09:39:54,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 09:39:54,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 09:39:54,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 09:39:54,353 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 09:39:54,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 09:39:54,353 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 09:39:54,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 09:39:54,354 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 09:39:54,354 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 09:39:54,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 09:39:54,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 09:39:54,355 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 09:39:54,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 09:39:54,356 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 09:39:54,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 09:39:54,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 09:39:54,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 09:39:54,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 09:39:54,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 09:39:54,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 09:39:54,357 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 09:39:54,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 09:39:54,357 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 09:39:54,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 09:39:54,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 09:39:54,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 09:39:54,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 09:39:54,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 09:39:54,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 09:39:54,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 09:39:54,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 09:39:54,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 09:39:54,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 09:39:54,359 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 09:39:54,359 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 09:39:54,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 09:39:54,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2022-07-12 09:39:54,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 09:39:54,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 09:39:54,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 09:39:54,579 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 09:39:54,579 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 09:39:54,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-07-12 09:39:54,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4de4a12/09d49fe1271c41fe86ceb37c1e346b46/FLAG29c5048fc [2022-07-12 09:39:55,012 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 09:39:55,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-07-12 09:39:55,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4de4a12/09d49fe1271c41fe86ceb37c1e346b46/FLAG29c5048fc [2022-07-12 09:39:55,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4de4a12/09d49fe1271c41fe86ceb37c1e346b46 [2022-07-12 09:39:55,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 09:39:55,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 09:39:55,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 09:39:55,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 09:39:55,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 09:39:55,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 09:39:55" (1/1) ... [2022-07-12 09:39:55,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de3ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:55, skipping insertion in model container [2022-07-12 09:39:55,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 09:39:55" (1/1) ... [2022-07-12 09:39:55,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 09:39:55,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 09:39:55,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-07-12 09:39:55,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-07-12 09:39:55,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 09:39:55,241 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 09:39:55,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-07-12 09:39:55,250 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-07-12 09:39:55,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 09:39:55,274 INFO L208 MainTranslator]: Completed translation [2022-07-12 09:39:55,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:55 WrapperNode [2022-07-12 09:39:55,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 09:39:55,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 09:39:55,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 09:39:55,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 09:39:55,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:55" (1/1) ... [2022-07-12 09:39:55,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:55" (1/1) ... [2022-07-12 09:39:55,323 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-07-12 09:39:55,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 09:39:55,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 09:39:55,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 09:39:55,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 09:39:55,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:55" (1/1) ... [2022-07-12 09:39:55,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:55" (1/1) ... [2022-07-12 09:39:55,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:55" (1/1) ... [2022-07-12 09:39:55,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:55" (1/1) ... [2022-07-12 09:39:55,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:55" (1/1) ... [2022-07-12 09:39:55,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:55" (1/1) ... [2022-07-12 09:39:55,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:55" (1/1) ... [2022-07-12 09:39:55,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 09:39:55,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 09:39:55,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 09:39:55,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 09:39:55,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:55" (1/1) ... [2022-07-12 09:39:55,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 09:39:55,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 09:39:55,398 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) [2022-07-12 09:39:55,409 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 [2022-07-12 09:39:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 09:39:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-12 09:39:55,432 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-12 09:39:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 09:39:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 09:39:55,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 09:39:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 09:39:55,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 09:39:55,525 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 09:39:55,526 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 09:39:55,774 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 09:39:55,779 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 09:39:55,779 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 09:39:55,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:39:55 BoogieIcfgContainer [2022-07-12 09:39:55,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 09:39:55,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 09:39:55,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 09:39:55,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 09:39:55,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 09:39:55" (1/3) ... [2022-07-12 09:39:55,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8237ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 09:39:55, skipping insertion in model container [2022-07-12 09:39:55,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:55" (2/3) ... [2022-07-12 09:39:55,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8237ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 09:39:55, skipping insertion in model container [2022-07-12 09:39:55,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:39:55" (3/3) ... [2022-07-12 09:39:55,793 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2022-07-12 09:39:55,806 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 09:39:55,807 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 09:39:55,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 09:39:55,843 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@5ec93c29, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3d286e70 [2022-07-12 09:39:55,843 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 09:39:55,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-12 09:39:55,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-12 09:39:55,853 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 09:39:55,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-12 09:39:55,855 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 09:39:55,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 09:39:55,865 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-07-12 09:39:55,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 09:39:55,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640917009] [2022-07-12 09:39:55,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 09:39:55,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 09:39:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 09:39:55,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 09:39:55,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 09:39:55,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640917009] [2022-07-12 09:39:55,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640917009] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 09:39:55,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 09:39:55,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 09:39:55,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455077137] [2022-07-12 09:39:55,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 09:39:55,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 09:39:55,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 09:39:55,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 09:39:55,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 09:39:55,998 INFO L87 Difference]: Start difference. First operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 09:39:56,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 09:39:56,042 INFO L93 Difference]: Finished difference Result 189 states and 311 transitions. [2022-07-12 09:39:56,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 09:39:56,044 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 [2022-07-12 09:39:56,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 09:39:56,053 INFO L225 Difference]: With dead ends: 189 [2022-07-12 09:39:56,053 INFO L226 Difference]: Without dead ends: 88 [2022-07-12 09:39:56,057 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 [2022-07-12 09:39:56,065 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 09:39:56,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 09:39:56,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-07-12 09:39:56,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-07-12 09:39:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 09:39:56,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 129 transitions. [2022-07-12 09:39:56,111 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 129 transitions. Word has length 7 [2022-07-12 09:39:56,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 09:39:56,111 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 129 transitions. [2022-07-12 09:39:56,111 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) [2022-07-12 09:39:56,111 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-07-12 09:39:56,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-12 09:39:56,112 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 09:39:56,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-12 09:39:56,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 09:39:56,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 09:39:56,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 09:39:56,115 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-07-12 09:39:56,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 09:39:56,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677290000] [2022-07-12 09:39:56,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 09:39:56,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 09:39:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 09:39:56,148 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 09:39:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 09:39:56,175 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 09:39:56,175 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 09:39:56,176 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-12 09:39:56,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-12 09:39:56,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 09:39:56,181 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 09:39:56,183 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 09:39:56,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 09:39:56 BoogieIcfgContainer [2022-07-12 09:39:56,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 09:39:56,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 09:39:56,204 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 09:39:56,204 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 09:39:56,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:39:55" (3/4) ... [2022-07-12 09:39:56,206 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 09:39:56,206 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 09:39:56,208 INFO L158 Benchmark]: Toolchain (without parser) took 1175.52ms. Allocated memory is still 113.2MB. Free memory was 82.9MB in the beginning and 70.3MB in the end (delta: 12.6MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2022-07-12 09:39:56,208 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 42.7MB in the beginning and 42.7MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 09:39:56,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.80ms. Allocated memory is still 113.2MB. Free memory was 82.6MB in the beginning and 84.9MB in the end (delta: -2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 09:39:56,210 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.18ms. Allocated memory is still 113.2MB. Free memory was 84.9MB in the beginning and 82.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 09:39:56,212 INFO L158 Benchmark]: Boogie Preprocessor took 44.25ms. Allocated memory is still 113.2MB. Free memory was 82.8MB in the beginning and 81.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 09:39:56,212 INFO L158 Benchmark]: RCFGBuilder took 410.74ms. Allocated memory is still 113.2MB. Free memory was 81.1MB in the beginning and 61.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-12 09:39:56,212 INFO L158 Benchmark]: TraceAbstraction took 420.86ms. Allocated memory is still 113.2MB. Free memory was 61.4MB in the beginning and 70.3MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 09:39:56,213 INFO L158 Benchmark]: Witness Printer took 3.19ms. Allocated memory is still 113.2MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 09:39:56,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 42.7MB in the beginning and 42.7MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.80ms. Allocated memory is still 113.2MB. Free memory was 82.6MB in the beginning and 84.9MB in the end (delta: -2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.18ms. Allocated memory is still 113.2MB. Free memory was 84.9MB in the beginning and 82.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.25ms. Allocated memory is still 113.2MB. Free memory was 82.8MB in the beginning and 81.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 410.74ms. Allocated memory is still 113.2MB. Free memory was 81.1MB in the beginning and 61.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 420.86ms. Allocated memory is still 113.2MB. Free memory was 61.4MB in the beginning and 70.3MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.19ms. Allocated memory is still 113.2MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=49, x=49] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=49, x=49] [L48] reach_error() VAL [IN=49, x=49] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 97 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 140 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 140 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-12 09:39:56,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 09:39:57,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 09:39:57,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 09:39:57,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 09:39:57,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 09:39:57,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 09:39:57,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 09:39:57,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 09:39:57,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 09:39:57,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 09:39:57,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 09:39:57,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 09:39:57,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 09:39:57,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 09:39:57,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 09:39:57,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 09:39:57,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 09:39:57,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 09:39:57,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 09:39:57,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 09:39:57,757 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 09:39:57,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 09:39:57,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 09:39:57,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 09:39:57,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 09:39:57,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 09:39:57,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 09:39:57,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 09:39:57,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 09:39:57,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 09:39:57,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 09:39:57,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 09:39:57,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 09:39:57,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 09:39:57,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 09:39:57,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 09:39:57,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 09:39:57,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 09:39:57,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 09:39:57,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 09:39:57,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 09:39:57,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 09:39:57,787 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 09:39:57,810 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 09:39:57,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 09:39:57,811 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 09:39:57,811 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 09:39:57,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 09:39:57,812 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 09:39:57,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 09:39:57,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 09:39:57,812 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 09:39:57,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 09:39:57,813 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 09:39:57,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 09:39:57,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 09:39:57,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 09:39:57,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 09:39:57,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 09:39:57,814 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 09:39:57,814 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 09:39:57,814 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 09:39:57,814 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 09:39:57,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 09:39:57,815 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 09:39:57,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 09:39:57,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 09:39:57,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 09:39:57,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 09:39:57,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 09:39:57,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 09:39:57,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 09:39:57,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 09:39:57,816 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 09:39:57,816 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 09:39:57,816 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 09:39:57,816 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 09:39:57,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 09:39:57,817 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 09:39:57,817 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2022-07-12 09:39:58,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 09:39:58,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 09:39:58,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 09:39:58,071 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 09:39:58,072 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 09:39:58,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-07-12 09:39:58,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b5b74639/57e06debab01415c80a12d4654faa2c6/FLAGc48f9f125 [2022-07-12 09:39:58,492 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 09:39:58,493 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-07-12 09:39:58,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b5b74639/57e06debab01415c80a12d4654faa2c6/FLAGc48f9f125 [2022-07-12 09:39:58,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b5b74639/57e06debab01415c80a12d4654faa2c6 [2022-07-12 09:39:58,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 09:39:58,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 09:39:58,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 09:39:58,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 09:39:58,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 09:39:58,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 09:39:58" (1/1) ... [2022-07-12 09:39:58,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2115e3a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:58, skipping insertion in model container [2022-07-12 09:39:58,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 09:39:58" (1/1) ... [2022-07-12 09:39:58,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 09:39:58,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 09:39:58,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-07-12 09:39:58,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-07-12 09:39:58,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 09:39:58,756 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 09:39:58,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-07-12 09:39:58,770 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-07-12 09:39:58,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 09:39:58,799 INFO L208 MainTranslator]: Completed translation [2022-07-12 09:39:58,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:58 WrapperNode [2022-07-12 09:39:58,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 09:39:58,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 09:39:58,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 09:39:58,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 09:39:58,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:58" (1/1) ... [2022-07-12 09:39:58,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:58" (1/1) ... [2022-07-12 09:39:58,830 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-07-12 09:39:58,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 09:39:58,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 09:39:58,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 09:39:58,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 09:39:58,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:58" (1/1) ... [2022-07-12 09:39:58,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:58" (1/1) ... [2022-07-12 09:39:58,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:58" (1/1) ... [2022-07-12 09:39:58,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:58" (1/1) ... [2022-07-12 09:39:58,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:58" (1/1) ... [2022-07-12 09:39:58,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:58" (1/1) ... [2022-07-12 09:39:58,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:58" (1/1) ... [2022-07-12 09:39:58,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 09:39:58,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 09:39:58,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 09:39:58,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 09:39:58,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:58" (1/1) ... [2022-07-12 09:39:58,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 09:39:58,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 09:39:58,903 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) [2022-07-12 09:39:58,910 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 [2022-07-12 09:39:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 09:39:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 09:39:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-12 09:39:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-12 09:39:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 09:39:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 09:39:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 09:39:58,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 09:39:58,983 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 09:39:58,984 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 09:40:01,420 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 09:40:01,425 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 09:40:01,425 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 09:40:01,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:40:01 BoogieIcfgContainer [2022-07-12 09:40:01,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 09:40:01,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 09:40:01,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 09:40:01,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 09:40:01,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 09:39:58" (1/3) ... [2022-07-12 09:40:01,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0f937c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 09:40:01, skipping insertion in model container [2022-07-12 09:40:01,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:39:58" (2/3) ... [2022-07-12 09:40:01,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0f937c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 09:40:01, skipping insertion in model container [2022-07-12 09:40:01,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:40:01" (3/3) ... [2022-07-12 09:40:01,432 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2022-07-12 09:40:01,441 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 09:40:01,441 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 09:40:01,471 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 09:40:01,476 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@3cacbc5c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@115573c6 [2022-07-12 09:40:01,476 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 09:40:01,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-12 09:40:01,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-12 09:40:01,483 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 09:40:01,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-12 09:40:01,484 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 09:40:01,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 09:40:01,487 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-07-12 09:40:01,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 09:40:01,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972758261] [2022-07-12 09:40:01,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 09:40:01,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 09:40:01,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 09:40:01,496 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) [2022-07-12 09:40:01,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 09:40:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 09:40:01,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 09:40:01,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 09:40:01,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 09:40:01,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 09:40:01,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 09:40:01,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972758261] [2022-07-12 09:40:01,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972758261] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 09:40:01,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 09:40:01,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 09:40:01,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615929650] [2022-07-12 09:40:01,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 09:40:01,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 09:40:01,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 09:40:01,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 09:40:01,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 09:40:01,901 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 09:40:01,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 09:40:01,932 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-07-12 09:40:01,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 09:40:01,934 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 [2022-07-12 09:40:01,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 09:40:01,940 INFO L225 Difference]: With dead ends: 117 [2022-07-12 09:40:01,940 INFO L226 Difference]: Without dead ends: 52 [2022-07-12 09:40:01,943 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 [2022-07-12 09:40:01,947 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 09:40:01,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 09:40:01,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-12 09:40:01,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-07-12 09:40:01,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 09:40:01,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-07-12 09:40:01,980 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-07-12 09:40:01,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 09:40:01,980 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-07-12 09:40:01,981 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) [2022-07-12 09:40:01,981 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-07-12 09:40:01,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-12 09:40:01,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 09:40:01,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-12 09:40:01,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 09:40:02,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 09:40:02,196 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 09:40:02,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 09:40:02,196 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-07-12 09:40:02,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 09:40:02,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300054871] [2022-07-12 09:40:02,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 09:40:02,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 09:40:02,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 09:40:02,199 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) [2022-07-12 09:40:02,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 09:41:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 09:41:30,294 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 09:42:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 09:42:05,000 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-12 09:42:05,001 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 09:42:05,002 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-12 09:42:05,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-12 09:42:05,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 09:42:05,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 09:42:05,206 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 09:42:05,208 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 09:42:05,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 09:42:05 BoogieIcfgContainer [2022-07-12 09:42:05,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 09:42:05,221 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 09:42:05,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 09:42:05,222 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 09:42:05,222 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:40:01" (3/4) ... [2022-07-12 09:42:05,226 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 09:42:05,247 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 09:42:05,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 09:42:05,248 INFO L158 Benchmark]: Toolchain (without parser) took 126732.46ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 36.6MB in the beginning and 41.4MB in the end (delta: -4.8MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-07-12 09:42:05,249 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory was 39.3MB in the beginning and 39.3MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 09:42:05,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.84ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 37.8MB in the end (delta: -1.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-07-12 09:42:05,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.66ms. Allocated memory is still 58.7MB. Free memory was 37.8MB in the beginning and 35.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 09:42:05,250 INFO L158 Benchmark]: Boogie Preprocessor took 43.42ms. Allocated memory is still 58.7MB. Free memory was 35.8MB in the beginning and 34.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 09:42:05,250 INFO L158 Benchmark]: RCFGBuilder took 2549.72ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 34.0MB in the beginning and 47.7MB in the end (delta: -13.6MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2022-07-12 09:42:05,254 INFO L158 Benchmark]: TraceAbstraction took 123793.25ms. Allocated memory is still 73.4MB. Free memory was 47.3MB in the beginning and 43.2MB in the end (delta: 4.1MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-07-12 09:42:05,254 INFO L158 Benchmark]: Witness Printer took 26.12ms. Allocated memory is still 73.4MB. Free memory was 42.9MB in the beginning and 41.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 09:42:05,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory was 39.3MB in the beginning and 39.3MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.84ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 37.8MB in the end (delta: -1.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.66ms. Allocated memory is still 58.7MB. Free memory was 37.8MB in the beginning and 35.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.42ms. Allocated memory is still 58.7MB. Free memory was 35.8MB in the beginning and 34.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2549.72ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 34.0MB in the beginning and 47.7MB in the end (delta: -13.6MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * TraceAbstraction took 123793.25ms. Allocated memory is still 73.4MB. Free memory was 47.3MB in the beginning and 43.2MB in the end (delta: 4.1MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Witness Printer took 26.12ms. Allocated memory is still 73.4MB. Free memory was 42.9MB in the beginning and 41.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9999999403953552, result=1.3984375, x=0.9999999403953552] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999999403953552, result=1.3984375, x=0.9999999403953552] [L48] reach_error() VAL [IN=0.9999999403953552, result=1.3984375, x=0.9999999403953552] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 123.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 82 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 88.4s 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! [2022-07-12 09:42:05,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE