./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 20:39:54,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 20:39:54,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 20:39:54,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 20:39:54,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 20:39:54,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 20:39:54,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 20:39:54,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 20:39:54,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 20:39:54,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 20:39:54,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 20:39:54,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 20:39:54,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 20:39:54,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 20:39:54,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 20:39:54,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 20:39:54,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 20:39:54,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 20:39:54,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 20:39:54,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 20:39:54,421 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 20:39:54,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 20:39:54,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 20:39:54,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 20:39:54,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 20:39:54,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 20:39:54,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 20:39:54,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 20:39:54,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 20:39:54,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 20:39:54,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 20:39:54,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 20:39:54,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 20:39:54,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 20:39:54,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 20:39:54,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 20:39:54,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 20:39:54,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 20:39:54,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 20:39:54,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 20:39:54,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 20:39:54,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 20:39:54,437 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 20:39:54,455 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 20:39:54,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 20:39:54,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 20:39:54,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 20:39:54,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 20:39:54,457 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 20:39:54,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 20:39:54,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 20:39:54,458 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 20:39:54,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 20:39:54,458 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 20:39:54,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 20:39:54,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 20:39:54,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 20:39:54,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 20:39:54,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 20:39:54,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 20:39:54,460 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 20:39:54,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 20:39:54,460 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 20:39:54,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 20:39:54,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 20:39:54,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 20:39:54,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 20:39:54,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 20:39:54,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 20:39:54,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 20:39:54,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 20:39:54,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 20:39:54,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 20:39:54,463 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 20:39:54,463 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 20:39:54,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 20:39:54,464 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 [2022-07-19 20:39:54,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 20:39:54,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 20:39:54,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 20:39:54,712 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 20:39:54,713 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 20:39:54,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-07-19 20:39:54,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a221f716/b7d526d207034af8bd40cf1caed985d4/FLAG9716e2530 [2022-07-19 20:39:55,158 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 20:39:55,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-07-19 20:39:55,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a221f716/b7d526d207034af8bd40cf1caed985d4/FLAG9716e2530 [2022-07-19 20:39:55,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a221f716/b7d526d207034af8bd40cf1caed985d4 [2022-07-19 20:39:55,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 20:39:55,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 20:39:55,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 20:39:55,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 20:39:55,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 20:39:55,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:39:55" (1/1) ... [2022-07-19 20:39:55,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7649ba81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:55, skipping insertion in model container [2022-07-19 20:39:55,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:39:55" (1/1) ... [2022-07-19 20:39:55,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 20:39:55,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 20:39:55,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2022-07-19 20:39:55,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2022-07-19 20:39:55,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 20:39:55,432 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 20:39:55,445 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2022-07-19 20:39:55,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2022-07-19 20:39:55,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 20:39:55,486 INFO L208 MainTranslator]: Completed translation [2022-07-19 20:39:55,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:55 WrapperNode [2022-07-19 20:39:55,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 20:39:55,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 20:39:55,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 20:39:55,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 20:39:55,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:55" (1/1) ... [2022-07-19 20:39:55,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:55" (1/1) ... [2022-07-19 20:39:55,527 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-07-19 20:39:55,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 20:39:55,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 20:39:55,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 20:39:55,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 20:39:55,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:55" (1/1) ... [2022-07-19 20:39:55,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:55" (1/1) ... [2022-07-19 20:39:55,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:55" (1/1) ... [2022-07-19 20:39:55,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:55" (1/1) ... [2022-07-19 20:39:55,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:55" (1/1) ... [2022-07-19 20:39:55,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:55" (1/1) ... [2022-07-19 20:39:55,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:55" (1/1) ... [2022-07-19 20:39:55,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 20:39:55,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 20:39:55,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 20:39:55,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 20:39:55,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:55" (1/1) ... [2022-07-19 20:39:55,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 20:39:55,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 20:39:55,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 20:39:55,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 20:39:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 20:39:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-19 20:39:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-19 20:39:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 20:39:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 20:39:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 20:39:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-19 20:39:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-19 20:39:55,758 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 20:39:55,760 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 20:39:56,051 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 20:39:56,057 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 20:39:56,058 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 20:39:56,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:39:56 BoogieIcfgContainer [2022-07-19 20:39:56,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 20:39:56,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 20:39:56,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 20:39:56,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 20:39:56,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 08:39:55" (1/3) ... [2022-07-19 20:39:56,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a85d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:39:56, skipping insertion in model container [2022-07-19 20:39:56,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:55" (2/3) ... [2022-07-19 20:39:56,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a85d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:39:56, skipping insertion in model container [2022-07-19 20:39:56,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:39:56" (3/3) ... [2022-07-19 20:39:56,066 INFO L111 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_3a.c.cil.c [2022-07-19 20:39:56,079 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 20:39:56,079 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 20:39:56,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 20:39:56,162 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@bebc819, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@71c932a9 [2022-07-19 20:39:56,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 20:39:56,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 86 states have (on average 1.697674418604651) internal successors, (146), 89 states have internal predecessors, (146), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-19 20:39:56,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-19 20:39:56,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:39:56,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:39:56,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:39:56,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:39:56,200 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-07-19 20:39:56,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:39:56,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282938828] [2022-07-19 20:39:56,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:39:56,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:39:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:39:56,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:39:56,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 20:39:56,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282938828] [2022-07-19 20:39:56,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282938828] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:39:56,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:39:56,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 20:39:56,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535633405] [2022-07-19 20:39:56,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:39:56,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 20:39:56,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 20:39:56,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 20:39:56,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 20:39:56,346 INFO L87 Difference]: Start difference. First operand has 96 states, 86 states have (on average 1.697674418604651) internal successors, (146), 89 states have internal predecessors, (146), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:39:56,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:39:56,374 INFO L93 Difference]: Finished difference Result 187 states and 309 transitions. [2022-07-19 20:39:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 20:39:56,376 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-19 20:39:56,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:39:56,383 INFO L225 Difference]: With dead ends: 187 [2022-07-19 20:39:56,384 INFO L226 Difference]: Without dead ends: 87 [2022-07-19 20:39:56,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 20:39:56,398 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 20:39:56,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 20:39:56,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-07-19 20:39:56,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-07-19 20:39:56,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-19 20:39:56,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 128 transitions. [2022-07-19 20:39:56,457 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 128 transitions. Word has length 7 [2022-07-19 20:39:56,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:39:56,458 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 128 transitions. [2022-07-19 20:39:56,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:39:56,458 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 128 transitions. [2022-07-19 20:39:56,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-19 20:39:56,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:39:56,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:39:56,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 20:39:56,460 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:39:56,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:39:56,461 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-07-19 20:39:56,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 20:39:56,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800266766] [2022-07-19 20:39:56,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:39:56,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 20:39:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 20:39:56,492 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 20:39:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 20:39:56,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 20:39:56,524 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 20:39:56,525 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-19 20:39:56,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-19 20:39:56,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 20:39:56,530 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 20:39:56,534 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 20:39:56,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 08:39:56 BoogieIcfgContainer [2022-07-19 20:39:56,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 20:39:56,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 20:39:56,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 20:39:56,569 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 20:39:56,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:39:56" (3/4) ... [2022-07-19 20:39:56,573 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 20:39:56,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 20:39:56,575 INFO L158 Benchmark]: Toolchain (without parser) took 1388.17ms. Allocated memory is still 100.7MB. Free memory was 67.5MB in the beginning and 61.0MB in the end (delta: 6.5MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-07-19 20:39:56,576 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 53.7MB in the beginning and 53.6MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 20:39:56,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.97ms. Allocated memory is still 100.7MB. Free memory was 67.5MB in the beginning and 72.0MB in the end (delta: -4.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 20:39:56,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.28ms. Allocated memory is still 100.7MB. Free memory was 72.0MB in the beginning and 69.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 20:39:56,581 INFO L158 Benchmark]: Boogie Preprocessor took 28.33ms. Allocated memory is still 100.7MB. Free memory was 69.9MB in the beginning and 68.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 20:39:56,581 INFO L158 Benchmark]: RCFGBuilder took 502.70ms. Allocated memory is still 100.7MB. Free memory was 68.2MB in the beginning and 49.0MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-19 20:39:56,581 INFO L158 Benchmark]: TraceAbstraction took 504.00ms. Allocated memory is still 100.7MB. Free memory was 48.4MB in the beginning and 61.6MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 20:39:56,582 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 100.7MB. Free memory was 61.6MB in the beginning and 61.0MB in the end (delta: 616.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 20:39:56,583 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 53.7MB in the beginning and 53.6MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.97ms. Allocated memory is still 100.7MB. Free memory was 67.5MB in the beginning and 72.0MB in the end (delta: -4.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.28ms. Allocated memory is still 100.7MB. Free memory was 72.0MB in the beginning and 69.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.33ms. Allocated memory is still 100.7MB. Free memory was 69.9MB in the beginning and 68.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 502.70ms. Allocated memory is still 100.7MB. Free memory was 68.2MB in the beginning and 49.0MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 504.00ms. Allocated memory is still 100.7MB. Free memory was 48.4MB in the beginning and 61.6MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 100.7MB. Free memory was 61.6MB in the beginning and 61.0MB in the end (delta: 616.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=49, x=49] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=49, x=49] [L48] reach_error() VAL [IN=49, x=49] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 96 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 139 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 139 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-19 20:39:56,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 20:39:58,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 20:39:58,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 20:39:58,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 20:39:58,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 20:39:58,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 20:39:58,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 20:39:58,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 20:39:58,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 20:39:58,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 20:39:58,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 20:39:58,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 20:39:58,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 20:39:58,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 20:39:58,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 20:39:58,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 20:39:58,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 20:39:58,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 20:39:58,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 20:39:58,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 20:39:58,611 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 20:39:58,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 20:39:58,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 20:39:58,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 20:39:58,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 20:39:58,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 20:39:58,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 20:39:58,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 20:39:58,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 20:39:58,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 20:39:58,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 20:39:58,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 20:39:58,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 20:39:58,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 20:39:58,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 20:39:58,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 20:39:58,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 20:39:58,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 20:39:58,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 20:39:58,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 20:39:58,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 20:39:58,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 20:39:58,637 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 20:39:58,669 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 20:39:58,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 20:39:58,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 20:39:58,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 20:39:58,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 20:39:58,671 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 20:39:58,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 20:39:58,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 20:39:58,672 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 20:39:58,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 20:39:58,673 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 20:39:58,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 20:39:58,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 20:39:58,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 20:39:58,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 20:39:58,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 20:39:58,674 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 20:39:58,674 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 20:39:58,675 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 20:39:58,675 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 20:39:58,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 20:39:58,675 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 20:39:58,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 20:39:58,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 20:39:58,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 20:39:58,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 20:39:58,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 20:39:58,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 20:39:58,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 20:39:58,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 20:39:58,677 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 20:39:58,677 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 20:39:58,677 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 20:39:58,677 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 20:39:58,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 20:39:58,678 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 20:39:58,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 [2022-07-19 20:39:58,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 20:39:59,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 20:39:59,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 20:39:59,015 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 20:39:59,016 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 20:39:59,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-07-19 20:39:59,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad530c56a/01cf5176fcb545a2b3fa37309b4ec808/FLAGd75d94438 [2022-07-19 20:39:59,502 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 20:39:59,507 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-07-19 20:39:59,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad530c56a/01cf5176fcb545a2b3fa37309b4ec808/FLAGd75d94438 [2022-07-19 20:39:59,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad530c56a/01cf5176fcb545a2b3fa37309b4ec808 [2022-07-19 20:39:59,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 20:39:59,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 20:39:59,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 20:39:59,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 20:39:59,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 20:39:59,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:39:59" (1/1) ... [2022-07-19 20:39:59,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff6ab01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:39:59, skipping insertion in model container [2022-07-19 20:39:59,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:39:59" (1/1) ... [2022-07-19 20:39:59,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 20:39:59,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 20:40:00,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2022-07-19 20:40:00,105 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2022-07-19 20:40:00,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 20:40:00,218 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 20:40:00,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2022-07-19 20:40:00,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2022-07-19 20:40:00,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 20:40:00,294 INFO L208 MainTranslator]: Completed translation [2022-07-19 20:40:00,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:40:00 WrapperNode [2022-07-19 20:40:00,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 20:40:00,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 20:40:00,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 20:40:00,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 20:40:00,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:40:00" (1/1) ... [2022-07-19 20:40:00,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:40:00" (1/1) ... [2022-07-19 20:40:00,352 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-07-19 20:40:00,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 20:40:00,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 20:40:00,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 20:40:00,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 20:40:00,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:40:00" (1/1) ... [2022-07-19 20:40:00,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:40:00" (1/1) ... [2022-07-19 20:40:00,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:40:00" (1/1) ... [2022-07-19 20:40:00,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:40:00" (1/1) ... [2022-07-19 20:40:00,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:40:00" (1/1) ... [2022-07-19 20:40:00,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:40:00" (1/1) ... [2022-07-19 20:40:00,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:40:00" (1/1) ... [2022-07-19 20:40:00,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 20:40:00,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 20:40:00,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 20:40:00,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 20:40:00,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:40:00" (1/1) ... [2022-07-19 20:40:00,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 20:40:00,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 20:40:00,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 20:40:00,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 20:40:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 20:40:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 20:40:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-19 20:40:00,489 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-19 20:40:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 20:40:00,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 20:40:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-19 20:40:00,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-19 20:40:00,564 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 20:40:00,566 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 20:40:03,113 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 20:40:03,119 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 20:40:03,120 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 20:40:03,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:40:03 BoogieIcfgContainer [2022-07-19 20:40:03,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 20:40:03,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 20:40:03,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 20:40:03,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 20:40:03,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 08:39:59" (1/3) ... [2022-07-19 20:40:03,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160c85d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:40:03, skipping insertion in model container [2022-07-19 20:40:03,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:40:00" (2/3) ... [2022-07-19 20:40:03,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160c85d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:40:03, skipping insertion in model container [2022-07-19 20:40:03,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:40:03" (3/3) ... [2022-07-19 20:40:03,129 INFO L111 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_3a.c.cil.c [2022-07-19 20:40:03,141 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 20:40:03,141 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 20:40:03,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 20:40:03,187 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@5b349e58, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@a5a5c3a [2022-07-19 20:40:03,187 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 20:40:03,191 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-19 20:40:03,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-19 20:40:03,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:40:03,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:40:03,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:40:03,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:40:03,201 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-07-19 20:40:03,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 20:40:03,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372858856] [2022-07-19 20:40:03,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:40:03,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 20:40:03,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 20:40:03,214 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 20:40:03,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 20:40:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 20:40:03,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 20:40:03,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 20:40:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 20:40:03,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 20:40:03,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 20:40:03,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372858856] [2022-07-19 20:40:03,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372858856] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 20:40:03,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 20:40:03,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 20:40:03,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430556463] [2022-07-19 20:40:03,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 20:40:03,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 20:40:03,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 20:40:03,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 20:40:03,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 20:40:03,675 INFO L87 Difference]: Start difference. First operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:40:03,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 20:40:03,697 INFO L93 Difference]: Finished difference Result 115 states and 173 transitions. [2022-07-19 20:40:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 20:40:03,699 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-19 20:40:03,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 20:40:03,705 INFO L225 Difference]: With dead ends: 115 [2022-07-19 20:40:03,705 INFO L226 Difference]: Without dead ends: 51 [2022-07-19 20:40:03,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 20:40:03,711 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 20:40:03,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 20:40:03,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-19 20:40:03,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-19 20:40:03,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-19 20:40:03,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-07-19 20:40:03,753 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2022-07-19 20:40:03,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 20:40:03,753 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-07-19 20:40:03,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 20:40:03,754 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-07-19 20:40:03,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-19 20:40:03,754 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 20:40:03,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-19 20:40:03,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-19 20:40:03,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 20:40:03,975 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 20:40:03,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 20:40:03,976 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-07-19 20:40:03,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 20:40:03,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891974342] [2022-07-19 20:40:03,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 20:40:03,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 20:40:03,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 20:40:03,978 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 20:40:03,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 20:40:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 20:40:45,371 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 20:42:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 20:42:27,577 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-19 20:42:27,577 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 20:42:27,579 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-19 20:42:27,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-19 20:42:27,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 20:42:27,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 20:42:27,785 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 20:42:27,788 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 20:42:27,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 08:42:27 BoogieIcfgContainer [2022-07-19 20:42:27,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 20:42:27,814 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 20:42:27,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 20:42:27,815 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 20:42:27,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:40:03" (3/4) ... [2022-07-19 20:42:27,819 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 20:42:27,861 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 20:42:27,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 20:42:27,863 INFO L158 Benchmark]: Toolchain (without parser) took 147984.07ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 41.0MB in the beginning and 45.9MB in the end (delta: -4.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-07-19 20:42:27,864 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 42.6MB in the beginning and 42.6MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 20:42:27,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.33ms. Allocated memory is still 60.8MB. Free memory was 40.8MB in the beginning and 40.7MB in the end (delta: 99.7kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 20:42:27,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.85ms. Allocated memory is still 60.8MB. Free memory was 40.5MB in the beginning and 38.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 20:42:27,865 INFO L158 Benchmark]: Boogie Preprocessor took 56.11ms. Allocated memory is still 60.8MB. Free memory was 38.7MB in the beginning and 37.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 20:42:27,865 INFO L158 Benchmark]: RCFGBuilder took 2711.33ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.0MB in the beginning and 52.3MB in the end (delta: -15.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-07-19 20:42:27,869 INFO L158 Benchmark]: TraceAbstraction took 144689.86ms. Allocated memory is still 73.4MB. Free memory was 51.6MB in the beginning and 47.6MB in the end (delta: 4.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2022-07-19 20:42:27,869 INFO L158 Benchmark]: Witness Printer took 47.31ms. Allocated memory is still 73.4MB. Free memory was 47.6MB in the beginning and 45.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 20:42:27,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory was 42.6MB in the beginning and 42.6MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.33ms. Allocated memory is still 60.8MB. Free memory was 40.8MB in the beginning and 40.7MB in the end (delta: 99.7kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.85ms. Allocated memory is still 60.8MB. Free memory was 40.5MB in the beginning and 38.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.11ms. Allocated memory is still 60.8MB. Free memory was 38.7MB in the beginning and 37.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2711.33ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.0MB in the beginning and 52.3MB in the end (delta: -15.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 144689.86ms. Allocated memory is still 73.4MB. Free memory was 51.6MB in the beginning and 47.6MB in the end (delta: 4.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Witness Printer took 47.31ms. Allocated memory is still 73.4MB. Free memory was 47.6MB in the beginning and 45.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.999961793422699, result=1.3984267711639404, x=0.999961793422699] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=0.999961793422699, result=1.3984267711639404, x=0.999961793422699] [L48] reach_error() VAL [IN=0.999961793422699, result=1.3984267711639404, x=0.999961793422699] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 144.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 81 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 41.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-19 20:42:27,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE