./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 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_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-?-6c24879 [2022-07-12 09:38:25,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 09:38:25,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 09:38:25,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 09:38:25,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 09:38:25,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 09:38:25,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 09:38:25,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 09:38:25,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 09:38:25,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 09:38:25,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 09:38:25,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 09:38:25,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 09:38:25,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 09:38:25,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 09:38:25,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 09:38:25,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 09:38:25,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 09:38:25,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 09:38:25,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 09:38:25,814 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 09:38:25,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 09:38:25,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 09:38:25,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 09:38:25,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 09:38:25,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 09:38:25,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 09:38:25,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 09:38:25,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 09:38:25,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 09:38:25,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 09:38:25,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 09:38:25,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 09:38:25,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 09:38:25,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 09:38:25,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 09:38:25,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 09:38:25,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 09:38:25,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 09:38:25,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 09:38:25,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 09:38:25,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 09:38:25,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 09:38:25,870 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 09:38:25,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 09:38:25,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 09:38:25,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 09:38:25,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 09:38:25,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 09:38:25,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 09:38:25,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 09:38:25,873 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 09:38:25,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 09:38:25,874 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 09:38:25,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 09:38:25,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 09:38:25,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 09:38:25,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 09:38:25,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 09:38:25,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 09:38:25,875 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 09:38:25,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 09:38:25,877 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 09:38:25,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 09:38:25,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 09:38:25,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 09:38:25,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 09:38:25,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 09:38:25,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 09:38:25,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 09:38:25,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 09:38:25,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 09:38:25,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 09:38:25,879 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 09:38:25,879 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 09:38:25,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 09:38:25,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 [2022-07-12 09:38:26,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 09:38:26,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 09:38:26,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 09:38:26,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 09:38:26,146 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 09:38:26,147 INFO L432 ainManager$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 [2022-07-12 09:38:26,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45303cd78/7fa5fcd32e0741f0bdba8a433dda23ae/FLAGa38eb4ee0 [2022-07-12 09:38:26,636 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 09:38:26,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-07-12 09:38:26,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45303cd78/7fa5fcd32e0741f0bdba8a433dda23ae/FLAGa38eb4ee0 [2022-07-12 09:38:27,024 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45303cd78/7fa5fcd32e0741f0bdba8a433dda23ae [2022-07-12 09:38:27,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 09:38:27,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 09:38:27,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 09:38:27,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 09:38:27,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 09:38:27,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 09:38:27" (1/1) ... [2022-07-12 09:38:27,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225c05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:27, skipping insertion in model container [2022-07-12 09:38:27,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 09:38:27" (1/1) ... [2022-07-12 09:38:27,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 09:38:27,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 09:38:27,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2022-07-12 09:38:27,204 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] [2022-07-12 09:38:27,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 09:38:27,292 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 09:38:27,311 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] [2022-07-12 09:38:27,315 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] [2022-07-12 09:38:27,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 09:38:27,375 INFO L208 MainTranslator]: Completed translation [2022-07-12 09:38:27,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:27 WrapperNode [2022-07-12 09:38:27,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 09:38:27,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 09:38:27,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 09:38:27,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 09:38:27,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:27" (1/1) ... [2022-07-12 09:38:27,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:27" (1/1) ... [2022-07-12 09:38:27,425 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-07-12 09:38:27,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 09:38:27,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 09:38:27,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 09:38:27,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 09:38:27,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:27" (1/1) ... [2022-07-12 09:38:27,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:27" (1/1) ... [2022-07-12 09:38:27,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:27" (1/1) ... [2022-07-12 09:38:27,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:27" (1/1) ... [2022-07-12 09:38:27,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:27" (1/1) ... [2022-07-12 09:38:27,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:27" (1/1) ... [2022-07-12 09:38:27,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:27" (1/1) ... [2022-07-12 09:38:27,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 09:38:27,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 09:38:27,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 09:38:27,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 09:38:27,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:27" (1/1) ... [2022-07-12 09:38:27,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 09:38:27,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 09:38:27,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 09:38:27,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 09:38:27,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 09:38:27,523 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-12 09:38:27,523 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-12 09:38:27,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 09:38:27,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 09:38:27,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 09:38:27,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 09:38:27,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 09:38:27,592 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 09:38:27,609 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 09:38:27,994 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 09:38:28,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 09:38:28,000 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 09:38:28,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:38:28 BoogieIcfgContainer [2022-07-12 09:38:28,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 09:38:28,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 09:38:28,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 09:38:28,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 09:38:28,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 09:38:27" (1/3) ... [2022-07-12 09:38:28,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127db5d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 09:38:28, skipping insertion in model container [2022-07-12 09:38:28,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:27" (2/3) ... [2022-07-12 09:38:28,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127db5d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 09:38:28, skipping insertion in model container [2022-07-12 09:38:28,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:38:28" (3/3) ... [2022-07-12 09:38:28,012 INFO L111 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_3a.c.cil.c [2022-07-12 09:38:28,027 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 09:38:28,028 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 09:38:28,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 09:38:28,107 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@1cdd81b3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@27e60ef2 [2022-07-12 09:38:28,107 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 09:38:28,111 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) [2022-07-12 09:38:28,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-12 09:38:28,117 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 09:38:28,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-12 09:38:28,118 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 09:38:28,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 09:38:28,124 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-07-12 09:38:28,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 09:38:28,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419894979] [2022-07-12 09:38:28,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 09:38:28,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 09:38:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 09:38:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 09:38:28,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 09:38:28,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419894979] [2022-07-12 09:38:28,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419894979] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 09:38:28,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 09:38:28,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 09:38:28,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239293860] [2022-07-12 09:38:28,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 09:38:28,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 09:38:28,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 09:38:28,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 09:38:28,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 09:38:28,287 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) [2022-07-12 09:38:28,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 09:38:28,335 INFO L93 Difference]: Finished difference Result 187 states and 309 transitions. [2022-07-12 09:38:28,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 09:38:28,337 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-12 09:38:28,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 09:38:28,346 INFO L225 Difference]: With dead ends: 187 [2022-07-12 09:38:28,346 INFO L226 Difference]: Without dead ends: 87 [2022-07-12 09:38:28,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 09:38:28,355 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 [2022-07-12 09:38:28,356 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] [2022-07-12 09:38:28,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-07-12 09:38:28,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-07-12 09:38:28,399 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) [2022-07-12 09:38:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 128 transitions. [2022-07-12 09:38:28,410 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 128 transitions. Word has length 7 [2022-07-12 09:38:28,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 09:38:28,411 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 128 transitions. [2022-07-12 09:38:28,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 09:38:28,412 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 128 transitions. [2022-07-12 09:38:28,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-12 09:38:28,413 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 09:38:28,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-12 09:38:28,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 09:38:28,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 09:38:28,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 09:38:28,415 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-07-12 09:38:28,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 09:38:28,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049442895] [2022-07-12 09:38:28,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 09:38:28,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 09:38:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 09:38:28,443 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 09:38:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 09:38:28,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 09:38:28,503 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 09:38:28,506 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-12 09:38:28,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-12 09:38:28,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 09:38:28,511 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 09:38:28,514 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 09:38:28,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 09:38:28 BoogieIcfgContainer [2022-07-12 09:38:28,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 09:38:28,542 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 09:38:28,542 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 09:38:28,543 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 09:38:28,544 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:38:28" (3/4) ... [2022-07-12 09:38:28,546 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 09:38:28,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 09:38:28,548 INFO L158 Benchmark]: Toolchain (without parser) took 1520.02ms. Allocated memory is still 92.3MB. Free memory was 62.8MB in the beginning and 66.4MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 09:38:28,549 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 73.4MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 09:38:28,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.84ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 48.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-12 09:38:28,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.81ms. Allocated memory is still 92.3MB. Free memory was 48.4MB in the beginning and 46.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 09:38:28,552 INFO L158 Benchmark]: Boogie Preprocessor took 36.82ms. Allocated memory is still 92.3MB. Free memory was 46.1MB in the beginning and 44.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 09:38:28,555 INFO L158 Benchmark]: RCFGBuilder took 538.84ms. Allocated memory is still 92.3MB. Free memory was 44.3MB in the beginning and 58.8MB in the end (delta: -14.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-07-12 09:38:28,555 INFO L158 Benchmark]: TraceAbstraction took 537.71ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 66.9MB in the end (delta: -8.7MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2022-07-12 09:38:28,555 INFO L158 Benchmark]: Witness Printer took 4.43ms. Allocated memory is still 92.3MB. Free memory was 66.9MB in the beginning and 66.4MB in the end (delta: 455.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 09:38:28,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 73.4MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.84ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 48.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.81ms. Allocated memory is still 92.3MB. Free memory was 48.4MB in the beginning and 46.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.82ms. Allocated memory is still 92.3MB. Free memory was 46.1MB in the beginning and 44.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 538.84ms. Allocated memory is still 92.3MB. Free memory was 44.3MB in the beginning and 58.8MB in the end (delta: -14.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * TraceAbstraction took 537.71ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 66.9MB in the end (delta: -8.7MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * Witness Printer took 4.43ms. Allocated memory is still 92.3MB. Free memory was 66.9MB in the beginning and 66.4MB in the end (delta: 455.3kB). 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 [2022-07-12 09:38:28,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_1+soft_float_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-?-6c24879 [2022-07-12 09:38:30,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 09:38:30,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 09:38:30,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 09:38:30,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 09:38:30,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 09:38:30,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 09:38:30,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 09:38:30,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 09:38:30,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 09:38:30,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 09:38:30,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 09:38:30,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 09:38:30,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 09:38:30,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 09:38:30,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 09:38:30,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 09:38:30,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 09:38:30,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 09:38:30,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 09:38:30,561 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 09:38:30,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 09:38:30,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 09:38:30,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 09:38:30,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 09:38:30,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 09:38:30,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 09:38:30,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 09:38:30,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 09:38:30,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 09:38:30,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 09:38:30,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 09:38:30,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 09:38:30,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 09:38:30,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 09:38:30,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 09:38:30,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 09:38:30,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 09:38:30,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 09:38:30,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 09:38:30,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 09:38:30,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 09:38:30,594 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 09:38:30,626 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 09:38:30,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 09:38:30,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 09:38:30,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 09:38:30,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 09:38:30,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 09:38:30,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 09:38:30,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 09:38:30,629 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 09:38:30,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 09:38:30,630 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 09:38:30,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 09:38:30,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 09:38:30,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 09:38:30,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 09:38:30,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 09:38:30,631 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 09:38:30,631 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 09:38:30,631 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 09:38:30,631 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 09:38:30,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 09:38:30,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 09:38:30,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 09:38:30,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 09:38:30,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 09:38:30,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 09:38:30,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 09:38:30,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 09:38:30,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 09:38:30,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 09:38:30,634 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 09:38:30,634 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 09:38:30,634 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 09:38:30,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 09:38:30,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 09:38:30,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 09:38:30,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 [2022-07-12 09:38:30,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 09:38:30,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 09:38:30,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 09:38:30,924 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 09:38:30,924 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 09:38:30,926 INFO L432 ainManager$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 [2022-07-12 09:38:30,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe80907e/23a0cfd3d3ab4a50bee9a9fd0c6a2be9/FLAGd3edb8140 [2022-07-12 09:38:31,466 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 09:38:31,467 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-07-12 09:38:31,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe80907e/23a0cfd3d3ab4a50bee9a9fd0c6a2be9/FLAGd3edb8140 [2022-07-12 09:38:31,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe80907e/23a0cfd3d3ab4a50bee9a9fd0c6a2be9 [2022-07-12 09:38:31,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 09:38:31,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 09:38:31,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 09:38:31,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 09:38:31,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 09:38:31,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 09:38:31" (1/1) ... [2022-07-12 09:38:31,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ddd8d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:31, skipping insertion in model container [2022-07-12 09:38:31,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 09:38:31" (1/1) ... [2022-07-12 09:38:31,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 09:38:31,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 09:38:31,699 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] [2022-07-12 09:38:31,703 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] [2022-07-12 09:38:31,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 09:38:31,775 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 09:38:31,802 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] [2022-07-12 09:38:31,804 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] [2022-07-12 09:38:31,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 09:38:31,836 INFO L208 MainTranslator]: Completed translation [2022-07-12 09:38:31,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:31 WrapperNode [2022-07-12 09:38:31,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 09:38:31,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 09:38:31,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 09:38:31,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 09:38:31,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:31" (1/1) ... [2022-07-12 09:38:31,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:31" (1/1) ... [2022-07-12 09:38:31,872 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-07-12 09:38:31,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 09:38:31,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 09:38:31,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 09:38:31,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 09:38:31,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:31" (1/1) ... [2022-07-12 09:38:31,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:31" (1/1) ... [2022-07-12 09:38:31,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:31" (1/1) ... [2022-07-12 09:38:31,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:31" (1/1) ... [2022-07-12 09:38:31,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:31" (1/1) ... [2022-07-12 09:38:31,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:31" (1/1) ... [2022-07-12 09:38:31,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:31" (1/1) ... [2022-07-12 09:38:31,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 09:38:31,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 09:38:31,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 09:38:31,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 09:38:31,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:31" (1/1) ... [2022-07-12 09:38:31,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 09:38:31,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 09:38:31,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 09:38:31,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 09:38:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 09:38:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 09:38:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-12 09:38:31,971 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-12 09:38:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 09:38:31,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 09:38:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 09:38:31,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 09:38:32,069 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 09:38:32,070 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 09:38:34,568 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 09:38:34,575 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 09:38:34,576 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 09:38:34,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:38:34 BoogieIcfgContainer [2022-07-12 09:38:34,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 09:38:34,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 09:38:34,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 09:38:34,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 09:38:34,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 09:38:31" (1/3) ... [2022-07-12 09:38:34,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3731ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 09:38:34, skipping insertion in model container [2022-07-12 09:38:34,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 09:38:31" (2/3) ... [2022-07-12 09:38:34,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3731ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 09:38:34, skipping insertion in model container [2022-07-12 09:38:34,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:38:34" (3/3) ... [2022-07-12 09:38:34,589 INFO L111 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_3a.c.cil.c [2022-07-12 09:38:34,603 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 09:38:34,604 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 09:38:34,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 09:38:34,656 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@41a08209, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@70fc4506 [2022-07-12 09:38:34,656 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 09:38:34,660 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) [2022-07-12 09:38:34,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-12 09:38:34,665 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 09:38:34,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-12 09:38:34,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 09:38:34,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 09:38:34,671 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-07-12 09:38:34,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 09:38:34,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928708357] [2022-07-12 09:38:34,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 09:38:34,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 09:38:34,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 09:38:34,687 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 09:38:34,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 09:38:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 09:38:35,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 09:38:35,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 09:38:35,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 09:38:35,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 09:38:35,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 09:38:35,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928708357] [2022-07-12 09:38:35,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928708357] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 09:38:35,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 09:38:35,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 09:38:35,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210719430] [2022-07-12 09:38:35,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 09:38:35,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 09:38:35,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 09:38:35,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 09:38:35,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 09:38:35,141 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) [2022-07-12 09:38:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 09:38:35,175 INFO L93 Difference]: Finished difference Result 115 states and 173 transitions. [2022-07-12 09:38:35,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 09:38:35,177 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-12 09:38:35,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 09:38:35,184 INFO L225 Difference]: With dead ends: 115 [2022-07-12 09:38:35,184 INFO L226 Difference]: Without dead ends: 51 [2022-07-12 09:38:35,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 09:38:35,189 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 [2022-07-12 09:38:35,189 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] [2022-07-12 09:38:35,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-12 09:38:35,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-12 09:38:35,226 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) [2022-07-12 09:38:35,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-07-12 09:38:35,229 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2022-07-12 09:38:35,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 09:38:35,230 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-07-12 09:38:35,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 09:38:35,237 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-07-12 09:38:35,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-12 09:38:35,237 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 09:38:35,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-12 09:38:35,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 09:38:35,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 09:38:35,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 09:38:35,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 09:38:35,440 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-07-12 09:38:35,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 09:38:35,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643825245] [2022-07-12 09:38:35,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 09:38:35,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 09:38:35,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 09:38:35,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 09:38:35,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 09:39:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 09:39:18,041 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 09:41:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 09:41:14,574 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-12 09:41:14,574 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 09:41:14,575 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-12 09:41:14,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-12 09:41:14,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 09:41:14,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 09:41:14,781 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 09:41:14,785 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 09:41:14,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 09:41:14 BoogieIcfgContainer [2022-07-12 09:41:14,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 09:41:14,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 09:41:14,812 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 09:41:14,812 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 09:41:14,813 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 09:38:34" (3/4) ... [2022-07-12 09:41:14,817 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 09:41:14,862 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 09:41:14,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 09:41:14,864 INFO L158 Benchmark]: Toolchain (without parser) took 163362.15ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 42.5MB in the beginning and 48.5MB in the end (delta: -6.0MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-07-12 09:41:14,864 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 09:41:14,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.19ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 41.4MB in the end (delta: 971.8kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-12 09:41:14,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.04ms. Allocated memory is still 62.9MB. Free memory was 41.4MB in the beginning and 39.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 09:41:14,865 INFO L158 Benchmark]: Boogie Preprocessor took 28.65ms. Allocated memory is still 62.9MB. Free memory was 39.5MB in the beginning and 37.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 09:41:14,866 INFO L158 Benchmark]: RCFGBuilder took 2676.77ms. Allocated memory is still 62.9MB. Free memory was 37.7MB in the beginning and 42.4MB in the end (delta: -4.8MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2022-07-12 09:41:14,870 INFO L158 Benchmark]: TraceAbstraction took 160229.39ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 42.1MB in the beginning and 50.2MB in the end (delta: -8.1MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2022-07-12 09:41:14,870 INFO L158 Benchmark]: Witness Printer took 51.40ms. Allocated memory is still 75.5MB. Free memory was 50.2MB in the beginning and 48.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 09:41:14,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.19ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 41.4MB in the end (delta: 971.8kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.04ms. Allocated memory is still 62.9MB. Free memory was 41.4MB in the beginning and 39.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.65ms. Allocated memory is still 62.9MB. Free memory was 39.5MB in the beginning and 37.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2676.77ms. Allocated memory is still 62.9MB. Free memory was 37.7MB in the beginning and 42.4MB in the end (delta: -4.8MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 160229.39ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 42.1MB in the beginning and 50.2MB in the end (delta: -8.1MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Witness Printer took 51.40ms. Allocated memory is still 75.5MB. Free memory was 50.2MB in the beginning and 48.5MB 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: 160.1s, 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, 42.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-12 09:41:14,962 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