./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_3+soft_float_5a.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 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 21:20:18,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:20:18,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:20:18,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:20:18,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:20:18,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:20:18,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:20:18,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:20:18,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:20:18,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:20:18,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:20:18,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:20:18,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:20:18,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:20:18,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:20:18,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:20:18,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:20:18,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:20:18,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:20:18,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:20:18,631 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:20:18,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:20:18,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:20:18,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:20:18,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:20:18,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:20:18,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:20:18,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:20:18,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:20:18,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:20:18,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:20:18,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:20:18,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:20:18,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:20:18,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:20:18,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:20:18,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:20:18,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:20:18,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:20:18,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:20:18,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:20:18,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:20:18,653 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 21:20:18,688 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:20:18,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:20:18,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:20:18,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:20:18,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:20:18,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:20:18,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:20:18,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:20:18,690 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:20:18,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:20:18,692 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:20:18,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 21:20:18,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:20:18,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:20:18,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:20:18,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:20:18,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:20:18,693 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:20:18,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:20:18,694 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:20:18,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:20:18,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:20:18,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:20:18,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:20:18,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:20:18,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:20:18,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:20:18,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:20:18,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 21:20:18,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 21:20:18,697 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:20:18,697 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:20:18,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:20:18,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 [2022-07-13 21:20:18,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:20:18,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:20:18,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:20:18,957 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:20:18,958 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:20:18,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2022-07-13 21:20:19,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee850844b/11b05a1501764a4589fd217e7e3597bc/FLAG15b1fc3df [2022-07-13 21:20:19,414 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:20:19,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2022-07-13 21:20:19,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee850844b/11b05a1501764a4589fd217e7e3597bc/FLAG15b1fc3df [2022-07-13 21:20:19,797 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee850844b/11b05a1501764a4589fd217e7e3597bc [2022-07-13 21:20:19,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:20:19,800 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:20:19,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:20:19,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:20:19,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:20:19,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:20:19" (1/1) ... [2022-07-13 21:20:19,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550b3bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:19, skipping insertion in model container [2022-07-13 21:20:19,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:20:19" (1/1) ... [2022-07-13 21:20:19,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:20:19,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:20:19,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2022-07-13 21:20:19,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2022-07-13 21:20:20,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:20:20,024 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:20:20,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2022-07-13 21:20:20,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2022-07-13 21:20:20,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:20:20,089 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:20:20,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:20 WrapperNode [2022-07-13 21:20:20,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:20:20,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:20:20,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:20:20,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:20:20,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:20" (1/1) ... [2022-07-13 21:20:20,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:20" (1/1) ... [2022-07-13 21:20:20,127 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-07-13 21:20:20,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:20:20,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:20:20,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:20:20,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:20:20,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:20" (1/1) ... [2022-07-13 21:20:20,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:20" (1/1) ... [2022-07-13 21:20:20,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:20" (1/1) ... [2022-07-13 21:20:20,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:20" (1/1) ... [2022-07-13 21:20:20,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:20" (1/1) ... [2022-07-13 21:20:20,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:20" (1/1) ... [2022-07-13 21:20:20,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:20" (1/1) ... [2022-07-13 21:20:20,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:20:20,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:20:20,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:20:20,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:20:20,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:20" (1/1) ... [2022-07-13 21:20:20,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:20:20,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:20:20,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 21:20:20,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 21:20:20,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:20:20,229 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-13 21:20:20,230 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-13 21:20:20,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 21:20:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:20:20,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:20:20,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-13 21:20:20,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-13 21:20:20,343 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:20:20,345 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:20:20,688 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:20:20,694 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:20:20,695 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 21:20:20,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:20:20 BoogieIcfgContainer [2022-07-13 21:20:20,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:20:20,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:20:20,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:20:20,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:20:20,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:20:19" (1/3) ... [2022-07-13 21:20:20,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4537b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:20:20, skipping insertion in model container [2022-07-13 21:20:20,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:20" (2/3) ... [2022-07-13 21:20:20,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4537b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:20:20, skipping insertion in model container [2022-07-13 21:20:20,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:20:20" (3/3) ... [2022-07-13 21:20:20,706 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_5a.c.cil.c [2022-07-13 21:20:20,722 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:20:20,722 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 21:20:20,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:20:20,782 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@251916ac, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6175c176 [2022-07-13 21:20:20,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-13 21:20:20,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-13 21:20:20,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 21:20:20,796 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 21:20:20,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:20:20,797 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 21:20:20,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:20:20,804 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-07-13 21:20:20,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:20:20,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019895476] [2022-07-13 21:20:20,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:20:20,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:20:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:20:20,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:20:20,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:20:20,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019895476] [2022-07-13 21:20:20,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019895476] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:20:20,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:20:20,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 21:20:20,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477387159] [2022-07-13 21:20:20,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:20:20,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 21:20:20,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:20:20,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 21:20:20,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 21:20:20,974 INFO L87 Difference]: Start difference. First operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:20:21,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 21:20:21,024 INFO L93 Difference]: Finished difference Result 189 states and 311 transitions. [2022-07-13 21:20:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 21:20:21,026 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-13 21:20:21,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 21:20:21,035 INFO L225 Difference]: With dead ends: 189 [2022-07-13 21:20:21,035 INFO L226 Difference]: Without dead ends: 88 [2022-07-13 21:20:21,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 21:20:21,052 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 21:20:21,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 21:20:21,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-07-13 21:20:21,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-07-13 21:20:21,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-13 21:20:21,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 129 transitions. [2022-07-13 21:20:21,110 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 129 transitions. Word has length 7 [2022-07-13 21:20:21,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 21:20:21,110 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 129 transitions. [2022-07-13 21:20:21,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:20:21,111 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-07-13 21:20:21,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 21:20:21,112 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 21:20:21,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:20:21,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 21:20:21,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 21:20:21,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:20:21,114 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-07-13 21:20:21,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:20:21,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389749664] [2022-07-13 21:20:21,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:20:21,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:20:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:20:21,141 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:20:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:20:21,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 21:20:21,177 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:20:21,179 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-13 21:20:21,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-13 21:20:21,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 21:20:21,184 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 21:20:21,186 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 21:20:21,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 09:20:21 BoogieIcfgContainer [2022-07-13 21:20:21,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 21:20:21,209 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 21:20:21,209 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 21:20:21,210 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 21:20:21,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:20:20" (3/4) ... [2022-07-13 21:20:21,212 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 21:20:21,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 21:20:21,214 INFO L158 Benchmark]: Toolchain (without parser) took 1412.73ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 53.6MB in the beginning and 55.9MB in the end (delta: -2.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2022-07-13 21:20:21,214 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory was 58.1MB in the beginning and 58.1MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:20:21,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.30ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 53.4MB in the beginning and 78.6MB in the end (delta: -25.1MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-07-13 21:20:21,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.82ms. Allocated memory is still 107.0MB. Free memory was 78.6MB in the beginning and 76.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:20:21,220 INFO L158 Benchmark]: Boogie Preprocessor took 25.69ms. Allocated memory is still 107.0MB. Free memory was 76.4MB in the beginning and 74.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:20:21,220 INFO L158 Benchmark]: RCFGBuilder took 542.43ms. Allocated memory is still 107.0MB. Free memory was 74.7MB in the beginning and 82.1MB in the end (delta: -7.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-07-13 21:20:21,220 INFO L158 Benchmark]: TraceAbstraction took 510.37ms. Allocated memory is still 107.0MB. Free memory was 81.5MB in the beginning and 56.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-13 21:20:21,221 INFO L158 Benchmark]: Witness Printer took 3.34ms. Allocated memory is still 107.0MB. Free memory was 56.4MB in the beginning and 55.9MB in the end (delta: 467.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:20:21,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory was 58.1MB in the beginning and 58.1MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.30ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 53.4MB in the beginning and 78.6MB in the end (delta: -25.1MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.82ms. Allocated memory is still 107.0MB. Free memory was 78.6MB in the beginning and 76.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.69ms. Allocated memory is still 107.0MB. Free memory was 76.4MB in the beginning and 74.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.43ms. Allocated memory is still 107.0MB. Free memory was 74.7MB in the beginning and 82.1MB in the end (delta: -7.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * TraceAbstraction took 510.37ms. Allocated memory is still 107.0MB. Free memory was 81.5MB in the beginning and 56.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.34ms. Allocated memory is still 107.0MB. Free memory was 56.4MB in the beginning and 55.9MB in the end (delta: 467.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=49, x=49] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=49, x=49] [L48] reach_error() VAL [IN=49, x=49] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 97 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 140 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-13 21:20:21,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/square_3+soft_float_5a.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 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 21:20:23,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:20:23,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:20:23,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:20:23,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:20:23,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:20:23,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:20:23,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:20:23,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:20:23,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:20:23,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:20:23,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:20:23,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:20:23,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:20:23,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:20:23,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:20:23,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:20:23,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:20:23,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:20:23,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:20:23,161 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:20:23,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:20:23,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:20:23,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:20:23,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:20:23,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:20:23,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:20:23,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:20:23,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:20:23,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:20:23,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:20:23,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:20:23,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:20:23,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:20:23,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:20:23,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:20:23,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:20:23,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:20:23,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:20:23,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:20:23,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:20:23,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:20:23,190 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 21:20:23,212 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:20:23,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:20:23,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:20:23,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:20:23,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:20:23,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:20:23,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:20:23,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:20:23,215 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:20:23,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:20:23,216 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:20:23,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:20:23,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:20:23,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:20:23,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:20:23,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:20:23,223 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 21:20:23,223 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 21:20:23,223 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 21:20:23,223 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:20:23,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:20:23,224 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:20:23,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:20:23,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:20:23,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:20:23,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:20:23,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:20:23,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:20:23,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:20:23,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:20:23,226 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 21:20:23,226 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 21:20:23,226 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:20:23,226 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:20:23,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:20:23,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 21:20:23,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 [2022-07-13 21:20:23,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:20:23,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:20:23,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:20:23,549 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:20:23,550 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:20:23,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2022-07-13 21:20:23,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bb5f4ac3/3268051515ce4689827372359e44afc4/FLAGd7e9ebb28 [2022-07-13 21:20:24,039 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:20:24,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2022-07-13 21:20:24,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bb5f4ac3/3268051515ce4689827372359e44afc4/FLAGd7e9ebb28 [2022-07-13 21:20:24,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bb5f4ac3/3268051515ce4689827372359e44afc4 [2022-07-13 21:20:24,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:20:24,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:20:24,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:20:24,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:20:24,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:20:24,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:20:24" (1/1) ... [2022-07-13 21:20:24,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55023c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:24, skipping insertion in model container [2022-07-13 21:20:24,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:20:24" (1/1) ... [2022-07-13 21:20:24,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:20:24,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:20:24,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2022-07-13 21:20:24,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2022-07-13 21:20:24,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:20:24,682 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:20:24,694 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2022-07-13 21:20:24,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2022-07-13 21:20:24,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:20:24,725 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:20:24,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:24 WrapperNode [2022-07-13 21:20:24,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:20:24,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:20:24,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:20:24,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:20:24,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:24" (1/1) ... [2022-07-13 21:20:24,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:24" (1/1) ... [2022-07-13 21:20:24,763 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-07-13 21:20:24,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:20:24,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:20:24,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:20:24,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:20:24,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:24" (1/1) ... [2022-07-13 21:20:24,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:24" (1/1) ... [2022-07-13 21:20:24,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:24" (1/1) ... [2022-07-13 21:20:24,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:24" (1/1) ... [2022-07-13 21:20:24,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:24" (1/1) ... [2022-07-13 21:20:24,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:24" (1/1) ... [2022-07-13 21:20:24,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:24" (1/1) ... [2022-07-13 21:20:24,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:20:24,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:20:24,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:20:24,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:20:24,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:24" (1/1) ... [2022-07-13 21:20:24,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:20:24,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:20:24,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 21:20:24,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 21:20:24,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:20:24,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 21:20:24,901 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-13 21:20:24,901 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-13 21:20:24,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:20:24,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:20:24,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-13 21:20:24,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-13 21:20:24,989 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:20:24,991 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:20:27,488 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:20:27,494 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:20:27,494 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 21:20:27,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:20:27 BoogieIcfgContainer [2022-07-13 21:20:27,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:20:27,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:20:27,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:20:27,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:20:27,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:20:24" (1/3) ... [2022-07-13 21:20:27,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71aa13eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:20:27, skipping insertion in model container [2022-07-13 21:20:27,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:20:24" (2/3) ... [2022-07-13 21:20:27,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71aa13eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:20:27, skipping insertion in model container [2022-07-13 21:20:27,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:20:27" (3/3) ... [2022-07-13 21:20:27,503 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_5a.c.cil.c [2022-07-13 21:20:27,515 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:20:27,515 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 21:20:27,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:20:27,559 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@49b60bc1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@62e55351 [2022-07-13 21:20:27,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-13 21:20:27,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-13 21:20:27,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 21:20:27,571 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 21:20:27,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:20:27,572 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 21:20:27,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:20:27,579 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-07-13 21:20:27,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 21:20:27,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310887390] [2022-07-13 21:20:27,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:20:27,590 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 21:20:27,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 21:20:27,595 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 21:20:27,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 21:20:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:20:28,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 21:20:28,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 21:20:28,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:20:28,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 21:20:28,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 21:20:28,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310887390] [2022-07-13 21:20:28,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310887390] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:20:28,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:20:28,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 21:20:28,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664838241] [2022-07-13 21:20:28,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:20:28,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 21:20:28,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 21:20:28,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 21:20:28,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 21:20:28,154 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:20:28,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 21:20:28,177 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-07-13 21:20:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 21:20:28,179 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-13 21:20:28,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 21:20:28,186 INFO L225 Difference]: With dead ends: 117 [2022-07-13 21:20:28,186 INFO L226 Difference]: Without dead ends: 52 [2022-07-13 21:20:28,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 21:20:28,191 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 21:20:28,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 21:20:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-13 21:20:28,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-07-13 21:20:28,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-13 21:20:28,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-07-13 21:20:28,223 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-07-13 21:20:28,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 21:20:28,223 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-07-13 21:20:28,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:20:28,224 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-07-13 21:20:28,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 21:20:28,224 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 21:20:28,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:20:28,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-13 21:20:28,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 21:20:28,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 21:20:28,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:20:28,428 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-07-13 21:20:28,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 21:20:28,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299675036] [2022-07-13 21:20:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:20:28,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 21:20:28,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 21:20:28,448 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 21:20:28,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 21:21:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:21:33,139 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:22:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:22:02,968 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-13 21:22:02,968 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:22:02,969 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-13 21:22:02,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-13 21:22:03,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-13 21:22:03,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 21:22:03,175 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 21:22:03,178 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 21:22:03,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 09:22:03 BoogieIcfgContainer [2022-07-13 21:22:03,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 21:22:03,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 21:22:03,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 21:22:03,195 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 21:22:03,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:20:27" (3/4) ... [2022-07-13 21:22:03,197 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-13 21:22:03,231 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 21:22:03,231 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 21:22:03,234 INFO L158 Benchmark]: Toolchain (without parser) took 98791.82ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 33.0MB in the beginning and 31.2MB in the end (delta: 1.8MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-07-13 21:22:03,235 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 36.2MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:22:03,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.53ms. Allocated memory is still 54.5MB. Free memory was 32.8MB in the beginning and 33.7MB in the end (delta: -925.6kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 21:22:03,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.00ms. Allocated memory is still 54.5MB. Free memory was 33.7MB in the beginning and 31.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:22:03,237 INFO L158 Benchmark]: Boogie Preprocessor took 57.21ms. Allocated memory is still 54.5MB. Free memory was 31.8MB in the beginning and 30.1MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 21:22:03,238 INFO L158 Benchmark]: RCFGBuilder took 2671.35ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.1MB in the beginning and 41.8MB in the end (delta: -11.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-07-13 21:22:03,238 INFO L158 Benchmark]: TraceAbstraction took 95696.77ms. Allocated memory is still 67.1MB. Free memory was 41.2MB in the beginning and 33.0MB in the end (delta: 8.1MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-07-13 21:22:03,239 INFO L158 Benchmark]: Witness Printer took 38.40ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 31.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:22:03,241 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 36.2MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.53ms. Allocated memory is still 54.5MB. Free memory was 32.8MB in the beginning and 33.7MB in the end (delta: -925.6kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.00ms. Allocated memory is still 54.5MB. Free memory was 33.7MB in the beginning and 31.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.21ms. Allocated memory is still 54.5MB. Free memory was 31.8MB in the beginning and 30.1MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2671.35ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.1MB in the beginning and 41.8MB in the end (delta: -11.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * TraceAbstraction took 95696.77ms. Allocated memory is still 67.1MB. Free memory was 41.2MB in the beginning and 33.0MB in the end (delta: 8.1MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Witness Printer took 38.40ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 31.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9999999403953552, result=1.3984375, x=0.9999999403953552] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999999403953552, result=1.3984375, x=0.9999999403953552] [L48] reach_error() VAL [IN=0.9999999403953552, result=1.3984375, x=0.9999999403953552] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 95.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 82 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 65.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-13 21:22:03,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE