./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f3d0efaf33b93df425f185e68aa4bb5fd862b42784228ced2cb70c663695e18 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 08:12:26,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 08:12:26,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 08:12:26,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 08:12:26,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 08:12:26,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 08:12:26,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 08:12:26,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 08:12:26,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 08:12:26,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 08:12:26,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 08:12:26,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 08:12:26,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 08:12:26,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 08:12:26,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 08:12:26,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 08:12:26,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 08:12:26,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 08:12:26,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 08:12:26,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 08:12:26,824 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 08:12:26,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 08:12:26,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 08:12:26,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 08:12:26,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 08:12:26,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 08:12:26,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 08:12:26,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 08:12:26,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 08:12:26,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 08:12:26,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 08:12:26,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 08:12:26,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 08:12:26,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 08:12:26,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 08:12:26,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 08:12:26,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 08:12:26,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 08:12:26,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 08:12:26,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 08:12:26,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 08:12:26,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 08:12:26,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 08:12:26,880 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 08:12:26,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 08:12:26,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 08:12:26,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 08:12:26,882 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 08:12:26,882 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 08:12:26,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 08:12:26,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 08:12:26,883 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 08:12:26,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 08:12:26,884 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 08:12:26,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 08:12:26,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 08:12:26,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 08:12:26,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 08:12:26,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 08:12:26,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 08:12:26,885 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 08:12:26,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 08:12:26,885 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 08:12:26,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 08:12:26,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 08:12:26,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 08:12:26,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 08:12:26,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:12:26,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 08:12:26,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 08:12:26,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 08:12:26,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 08:12:26,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 08:12:26,887 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 08:12:26,887 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 08:12:26,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 08:12:26,887 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f3d0efaf33b93df425f185e68aa4bb5fd862b42784228ced2cb70c663695e18 [2022-07-21 08:12:27,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 08:12:27,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 08:12:27,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 08:12:27,165 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 08:12:27,165 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 08:12:27,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c [2022-07-21 08:12:27,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/128f662ec/f25cd0b613ce40d993e81190a65eb138/FLAG29a4ec15d [2022-07-21 08:12:27,534 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 08:12:27,534 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c [2022-07-21 08:12:27,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/128f662ec/f25cd0b613ce40d993e81190a65eb138/FLAG29a4ec15d [2022-07-21 08:12:27,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/128f662ec/f25cd0b613ce40d993e81190a65eb138 [2022-07-21 08:12:27,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 08:12:27,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 08:12:27,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 08:12:27,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 08:12:27,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 08:12:27,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:12:27" (1/1) ... [2022-07-21 08:12:27,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b82295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:27, skipping insertion in model container [2022-07-21 08:12:27,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:12:27" (1/1) ... [2022-07-21 08:12:27,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 08:12:28,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 08:12:28,117 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_1-2a.c.cil.c[1996,2009] [2022-07-21 08:12:28,122 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_1-2a.c.cil.c[2390,2403] [2022-07-21 08:12:28,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:12:28,176 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 08:12:28,195 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_1-2a.c.cil.c[1996,2009] [2022-07-21 08:12:28,196 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_1-2a.c.cil.c[2390,2403] [2022-07-21 08:12:28,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:12:28,244 INFO L208 MainTranslator]: Completed translation [2022-07-21 08:12:28,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:28 WrapperNode [2022-07-21 08:12:28,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 08:12:28,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 08:12:28,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 08:12:28,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 08:12:28,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:28" (1/1) ... [2022-07-21 08:12:28,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:28" (1/1) ... [2022-07-21 08:12:28,276 INFO L137 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 235 [2022-07-21 08:12:28,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 08:12:28,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 08:12:28,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 08:12:28,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 08:12:28,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:28" (1/1) ... [2022-07-21 08:12:28,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:28" (1/1) ... [2022-07-21 08:12:28,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:28" (1/1) ... [2022-07-21 08:12:28,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:28" (1/1) ... [2022-07-21 08:12:28,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:28" (1/1) ... [2022-07-21 08:12:28,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:28" (1/1) ... [2022-07-21 08:12:28,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:28" (1/1) ... [2022-07-21 08:12:28,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 08:12:28,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 08:12:28,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 08:12:28,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 08:12:28,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:28" (1/1) ... [2022-07-21 08:12:28,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:12:28,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 08:12:28,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 08:12:28,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 08:12:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 08:12:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-21 08:12:28,365 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-21 08:12:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 08:12:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 08:12:28,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 08:12:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-21 08:12:28,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-21 08:12:28,425 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 08:12:28,427 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 08:12:28,706 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 08:12:28,711 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 08:12:28,712 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 08:12:28,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:12:28 BoogieIcfgContainer [2022-07-21 08:12:28,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 08:12:28,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 08:12:28,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 08:12:28,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 08:12:28,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:12:27" (1/3) ... [2022-07-21 08:12:28,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578d5967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:12:28, skipping insertion in model container [2022-07-21 08:12:28,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:28" (2/3) ... [2022-07-21 08:12:28,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578d5967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:12:28, skipping insertion in model container [2022-07-21 08:12:28,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:12:28" (3/3) ... [2022-07-21 08:12:28,720 INFO L111 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_1-2a.c.cil.c [2022-07-21 08:12:28,729 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 08:12:28,730 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-21 08:12:28,770 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 08:12:28,783 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@586bc357, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@189e7d81 [2022-07-21 08:12:28,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-21 08:12:28,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 102 states have (on average 1.7058823529411764) internal successors, (174), 106 states have internal predecessors, (174), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-21 08:12:28,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-21 08:12:28,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 08:12:28,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:12:28,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 08:12:28,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:12:28,797 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-07-21 08:12:28,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:12:28,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176303221] [2022-07-21 08:12:28,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:12:28,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:12:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:12:28,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:12:28,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:12:28,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176303221] [2022-07-21 08:12:28,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176303221] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:12:28,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:12:28,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 08:12:28,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790895416] [2022-07-21 08:12:28,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:12:28,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 08:12:28,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:12:28,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 08:12:28,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 08:12:28,928 INFO L87 Difference]: Start difference. First operand has 115 states, 102 states have (on average 1.7058823529411764) internal successors, (174), 106 states have internal predecessors, (174), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:12:28,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 08:12:28,969 INFO L93 Difference]: Finished difference Result 225 states and 380 transitions. [2022-07-21 08:12:28,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 08:12:28,970 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-21 08:12:28,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 08:12:28,977 INFO L225 Difference]: With dead ends: 225 [2022-07-21 08:12:28,977 INFO L226 Difference]: Without dead ends: 108 [2022-07-21 08:12:28,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 08:12:28,983 INFO L413 NwaCegarLoop]: 169 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, 169 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 08:12:28,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 08:12:28,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-07-21 08:12:29,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2022-07-21 08:12:29,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 96 states have (on average 1.5104166666666667) internal successors, (145), 99 states have internal predecessors, (145), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-21 08:12:29,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 160 transitions. [2022-07-21 08:12:29,031 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 160 transitions. Word has length 7 [2022-07-21 08:12:29,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 08:12:29,032 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 160 transitions. [2022-07-21 08:12:29,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:12:29,032 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 160 transitions. [2022-07-21 08:12:29,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-21 08:12:29,033 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 08:12:29,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:12:29,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 08:12:29,034 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 08:12:29,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:12:29,034 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-07-21 08:12:29,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:12:29,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516181098] [2022-07-21 08:12:29,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:12:29,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:12:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:12:29,065 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 08:12:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:12:29,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 08:12:29,082 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 08:12:29,083 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-21 08:12:29,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-21 08:12:29,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 08:12:29,087 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 08:12:29,089 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 08:12:29,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:12:29 BoogieIcfgContainer [2022-07-21 08:12:29,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 08:12:29,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 08:12:29,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 08:12:29,103 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 08:12:29,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:12:28" (3/4) ... [2022-07-21 08:12:29,106 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 08:12:29,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 08:12:29,108 INFO L158 Benchmark]: Toolchain (without parser) took 1152.60ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 56.5MB in the beginning and 80.4MB in the end (delta: -23.9MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-07-21 08:12:29,108 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:12:29,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.78ms. Allocated memory is still 75.5MB. Free memory was 56.5MB in the beginning and 52.4MB in the end (delta: 4.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 08:12:29,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.39ms. Allocated memory is still 75.5MB. Free memory was 52.4MB in the beginning and 50.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:12:29,112 INFO L158 Benchmark]: Boogie Preprocessor took 23.37ms. Allocated memory is still 75.5MB. Free memory was 50.1MB in the beginning and 48.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:12:29,113 INFO L158 Benchmark]: RCFGBuilder took 413.10ms. Allocated memory is still 75.5MB. Free memory was 48.0MB in the beginning and 52.2MB in the end (delta: -4.3MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-07-21 08:12:29,113 INFO L158 Benchmark]: TraceAbstraction took 387.26ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 51.8MB in the beginning and 81.0MB in the end (delta: -29.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:12:29,114 INFO L158 Benchmark]: Witness Printer took 3.12ms. Allocated memory is still 104.9MB. Free memory was 81.0MB in the beginning and 80.4MB in the end (delta: 659.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:12:29,123 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.78ms. Allocated memory is still 75.5MB. Free memory was 56.5MB in the beginning and 52.4MB in the end (delta: 4.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.39ms. Allocated memory is still 75.5MB. Free memory was 52.4MB in the beginning and 50.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.37ms. Allocated memory is still 75.5MB. Free memory was 50.1MB in the beginning and 48.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 413.10ms. Allocated memory is still 75.5MB. Free memory was 48.0MB in the beginning and 52.2MB in the end (delta: -4.3MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * TraceAbstraction took 387.26ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 51.8MB in the beginning and 81.0MB in the end (delta: -29.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.12ms. Allocated memory is still 104.9MB. Free memory was 81.0MB in the beginning and 80.4MB in the end (delta: 659.6kB). 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: [L403] COND TRUE __VERIFIER_nondet_int() [L404] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=49, x=49] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=49, x=49] [L48] reach_error() VAL [IN=49, x=49] - UnprovableResult [Line: 61]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 115 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 169 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, 169 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=115occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-21 08:12:29,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f3d0efaf33b93df425f185e68aa4bb5fd862b42784228ced2cb70c663695e18 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 08:12:30,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 08:12:30,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 08:12:30,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 08:12:30,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 08:12:30,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 08:12:30,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 08:12:30,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 08:12:30,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 08:12:30,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 08:12:30,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 08:12:30,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 08:12:30,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 08:12:30,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 08:12:30,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 08:12:30,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 08:12:30,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 08:12:30,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 08:12:30,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 08:12:30,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 08:12:30,784 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 08:12:30,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 08:12:30,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 08:12:30,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 08:12:30,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 08:12:30,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 08:12:30,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 08:12:30,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 08:12:30,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 08:12:30,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 08:12:30,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 08:12:30,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 08:12:30,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 08:12:30,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 08:12:30,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 08:12:30,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 08:12:30,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 08:12:30,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 08:12:30,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 08:12:30,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 08:12:30,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 08:12:30,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 08:12:30,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 08:12:30,827 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 08:12:30,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 08:12:30,828 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 08:12:30,828 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 08:12:30,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 08:12:30,829 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 08:12:30,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 08:12:30,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 08:12:30,830 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 08:12:30,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 08:12:30,831 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 08:12:30,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 08:12:30,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 08:12:30,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 08:12:30,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 08:12:30,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 08:12:30,836 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 08:12:30,836 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 08:12:30,837 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 08:12:30,837 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 08:12:30,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 08:12:30,837 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 08:12:30,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 08:12:30,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 08:12:30,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 08:12:30,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 08:12:30,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:12:30,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 08:12:30,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 08:12:30,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 08:12:30,839 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 08:12:30,839 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 08:12:30,839 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 08:12:30,839 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 08:12:30,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 08:12:30,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 08:12:30,840 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f3d0efaf33b93df425f185e68aa4bb5fd862b42784228ced2cb70c663695e18 [2022-07-21 08:12:31,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 08:12:31,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 08:12:31,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 08:12:31,122 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 08:12:31,122 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 08:12:31,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c [2022-07-21 08:12:31,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/708f3cbf6/e7ec990cbcf648dcb09845166d158b39/FLAG22f6ee7fa [2022-07-21 08:12:31,586 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 08:12:31,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c [2022-07-21 08:12:31,595 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/708f3cbf6/e7ec990cbcf648dcb09845166d158b39/FLAG22f6ee7fa [2022-07-21 08:12:31,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/708f3cbf6/e7ec990cbcf648dcb09845166d158b39 [2022-07-21 08:12:31,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 08:12:31,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 08:12:31,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 08:12:31,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 08:12:31,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 08:12:31,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:12:31" (1/1) ... [2022-07-21 08:12:31,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360d6615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:31, skipping insertion in model container [2022-07-21 08:12:31,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:12:31" (1/1) ... [2022-07-21 08:12:31,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 08:12:31,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 08:12:31,819 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_1-2a.c.cil.c[1996,2009] [2022-07-21 08:12:31,825 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_1-2a.c.cil.c[2390,2403] [2022-07-21 08:12:31,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:12:31,873 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 08:12:31,892 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_1-2a.c.cil.c[1996,2009] [2022-07-21 08:12:31,893 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_1-2a.c.cil.c[2390,2403] [2022-07-21 08:12:31,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:12:31,936 INFO L208 MainTranslator]: Completed translation [2022-07-21 08:12:31,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:31 WrapperNode [2022-07-21 08:12:31,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 08:12:31,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 08:12:31,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 08:12:31,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 08:12:31,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:31" (1/1) ... [2022-07-21 08:12:31,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:31" (1/1) ... [2022-07-21 08:12:31,997 INFO L137 Inliner]: procedures = 28, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 165 [2022-07-21 08:12:31,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 08:12:31,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 08:12:31,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 08:12:31,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 08:12:32,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:31" (1/1) ... [2022-07-21 08:12:32,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:31" (1/1) ... [2022-07-21 08:12:32,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:31" (1/1) ... [2022-07-21 08:12:32,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:31" (1/1) ... [2022-07-21 08:12:32,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:31" (1/1) ... [2022-07-21 08:12:32,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:31" (1/1) ... [2022-07-21 08:12:32,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:31" (1/1) ... [2022-07-21 08:12:32,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 08:12:32,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 08:12:32,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 08:12:32,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 08:12:32,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:31" (1/1) ... [2022-07-21 08:12:32,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:12:32,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 08:12:32,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 08:12:32,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 08:12:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 08:12:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 08:12:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-21 08:12:32,105 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-21 08:12:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 08:12:32,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 08:12:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-21 08:12:32,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-21 08:12:32,182 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 08:12:32,195 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 08:12:34,658 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 08:12:34,662 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 08:12:34,663 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 08:12:34,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:12:34 BoogieIcfgContainer [2022-07-21 08:12:34,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 08:12:34,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 08:12:34,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 08:12:34,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 08:12:34,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:12:31" (1/3) ... [2022-07-21 08:12:34,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e49dd8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:12:34, skipping insertion in model container [2022-07-21 08:12:34,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:31" (2/3) ... [2022-07-21 08:12:34,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e49dd8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:12:34, skipping insertion in model container [2022-07-21 08:12:34,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:12:34" (3/3) ... [2022-07-21 08:12:34,670 INFO L111 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_1-2a.c.cil.c [2022-07-21 08:12:34,679 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 08:12:34,679 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-21 08:12:34,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 08:12:34,711 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@2df361ef, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@592dd23e [2022-07-21 08:12:34,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-21 08:12:34,714 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 68 states have (on average 1.588235294117647) internal successors, (108), 72 states have internal predecessors, (108), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-21 08:12:34,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-21 08:12:34,718 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 08:12:34,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:12:34,719 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 08:12:34,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:12:34,723 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-07-21 08:12:34,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 08:12:34,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620670065] [2022-07-21 08:12:34,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:12:34,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 08:12:34,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 08:12:34,733 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 08:12:34,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 08:12:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:12:35,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 08:12:35,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 08:12:35,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:12:35,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 08:12:35,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 08:12:35,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1620670065] [2022-07-21 08:12:35,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1620670065] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:12:35,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:12:35,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 08:12:35,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818535755] [2022-07-21 08:12:35,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:12:35,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 08:12:35,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 08:12:35,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 08:12:35,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 08:12:35,182 INFO L87 Difference]: Start difference. First operand has 81 states, 68 states have (on average 1.588235294117647) internal successors, (108), 72 states have internal predecessors, (108), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:12:35,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 08:12:35,209 INFO L93 Difference]: Finished difference Result 157 states and 248 transitions. [2022-07-21 08:12:35,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 08:12:35,211 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-21 08:12:35,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 08:12:35,216 INFO L225 Difference]: With dead ends: 157 [2022-07-21 08:12:35,216 INFO L226 Difference]: Without dead ends: 74 [2022-07-21 08:12:35,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 08:12:35,223 INFO L413 NwaCegarLoop]: 116 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, 116 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 08:12:35,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 08:12:35,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-07-21 08:12:35,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-07-21 08:12:35,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 62 states have (on average 1.4838709677419355) internal successors, (92), 65 states have internal predecessors, (92), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-21 08:12:35,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 107 transitions. [2022-07-21 08:12:35,250 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 107 transitions. Word has length 7 [2022-07-21 08:12:35,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 08:12:35,251 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 107 transitions. [2022-07-21 08:12:35,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:12:35,251 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 107 transitions. [2022-07-21 08:12:35,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-21 08:12:35,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 08:12:35,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:12:35,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 08:12:35,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 08:12:35,460 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 08:12:35,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:12:35,461 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-07-21 08:12:35,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 08:12:35,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041612748] [2022-07-21 08:12:35,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:12:35,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 08:12:35,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 08:12:35,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 08:12:35,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 08:13:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:13:16,616 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 08:13:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:13:36,325 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-21 08:13:36,326 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 08:13:36,327 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-21 08:13:36,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-21 08:13:36,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 08:13:36,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 08:13:36,531 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 08:13:36,534 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 08:13:36,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:13:36 BoogieIcfgContainer [2022-07-21 08:13:36,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 08:13:36,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 08:13:36,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 08:13:36,558 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 08:13:36,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:12:34" (3/4) ... [2022-07-21 08:13:36,562 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 08:13:36,593 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 08:13:36,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 08:13:36,594 INFO L158 Benchmark]: Toolchain (without parser) took 64982.90ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.7MB in the beginning and 32.4MB in the end (delta: 2.3MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-07-21 08:13:36,594 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 38.4MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:13:36,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.31ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 34.9MB in the end (delta: -362.5kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 08:13:36,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.12ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 32.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:13:36,595 INFO L158 Benchmark]: Boogie Preprocessor took 47.92ms. Allocated memory is still 56.6MB. Free memory was 32.6MB in the beginning and 30.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:13:36,595 INFO L158 Benchmark]: RCFGBuilder took 2617.25ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 30.8MB in the beginning and 41.1MB in the end (delta: -10.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-07-21 08:13:36,596 INFO L158 Benchmark]: TraceAbstraction took 61891.11ms. Allocated memory is still 69.2MB. Free memory was 40.6MB in the beginning and 34.0MB in the end (delta: 6.5MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-07-21 08:13:36,596 INFO L158 Benchmark]: Witness Printer took 35.74ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 32.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:13:36,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 38.4MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.31ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 34.9MB in the end (delta: -362.5kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.12ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 32.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.92ms. Allocated memory is still 56.6MB. Free memory was 32.6MB in the beginning and 30.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2617.25ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 30.8MB in the beginning and 41.1MB in the end (delta: -10.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * TraceAbstraction took 61891.11ms. Allocated memory is still 69.2MB. Free memory was 40.6MB in the beginning and 34.0MB in the end (delta: 6.5MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Witness Printer took 35.74ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 32.4MB in the end (delta: 1.6MB). 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: [L403] COND TRUE __VERIFIER_nondet_int() [L404] 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=0.9990203976631165, result=1.398161768913269, x=0.9990203976631165] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=0.9990203976631165, result=1.398161768913269, x=0.9990203976631165] [L48] reach_error() VAL [IN=0.9990203976631165, result=1.398161768913269, x=0.9990203976631165] - UnprovableResult [Line: 61]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 81 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 61.8s, 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, 116 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, 116 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=81occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 41.5s 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! [2022-07-21 08:13:36,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE