./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_2+soft_float_2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 20:01:48,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 20:01:48,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 20:01:48,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 20:01:48,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 20:01:48,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 20:01:48,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 20:01:48,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 20:01:48,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 20:01:48,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 20:01:48,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 20:01:48,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 20:01:48,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 20:01:48,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 20:01:48,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 20:01:48,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 20:01:48,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 20:01:48,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 20:01:48,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 20:01:48,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 20:01:48,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 20:01:48,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 20:01:48,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 20:01:48,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 20:01:48,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 20:01:48,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 20:01:48,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 20:01:48,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 20:01:48,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 20:01:48,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 20:01:48,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 20:01:48,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 20:01:48,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 20:01:48,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 20:01:48,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 20:01:48,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 20:01:48,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 20:01:48,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 20:01:48,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 20:01:48,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 20:01:48,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 20:01:48,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 20:01:48,881 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 20:01:48,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 20:01:48,882 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 20:01:48,882 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 20:01:48,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 20:01:48,883 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 20:01:48,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 20:01:48,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 20:01:48,883 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 20:01:48,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 20:01:48,884 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 20:01:48,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 20:01:48,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 20:01:48,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 20:01:48,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 20:01:48,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 20:01:48,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 20:01:48,885 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 20:01:48,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 20:01:48,885 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 20:01:48,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 20:01:48,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 20:01:48,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 20:01:48,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 20:01:48,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:01:48,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 20:01:48,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 20:01:48,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 20:01:48,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 20:01:48,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 20:01:48,888 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 20:01:48,888 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 20:01:48,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 20:01:48,888 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 [2022-02-20 20:01:49,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 20:01:49,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 20:01:49,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 20:01:49,091 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 20:01:49,091 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 20:01:49,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2022-02-20 20:01:49,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b53d5a1b7/f1dfd1b5965949319df8eb3ba410b792/FLAGfcab851e9 [2022-02-20 20:01:49,515 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 20:01:49,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2022-02-20 20:01:49,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b53d5a1b7/f1dfd1b5965949319df8eb3ba410b792/FLAGfcab851e9 [2022-02-20 20:01:49,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b53d5a1b7/f1dfd1b5965949319df8eb3ba410b792 [2022-02-20 20:01:49,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 20:01:49,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 20:01:49,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 20:01:49,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 20:01:49,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 20:01:49,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:01:49" (1/1) ... [2022-02-20 20:01:49,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dfb800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:49, skipping insertion in model container [2022-02-20 20:01:49,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:01:49" (1/1) ... [2022-02-20 20:01:49,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 20:01:49,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 20:01:49,768 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_2+soft_float_2a.c.cil.c[1997,2010] [2022-02-20 20:01:49,774 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_2+soft_float_2a.c.cil.c[2366,2379] [2022-02-20 20:01:49,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:01:49,846 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 20:01:49,859 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_2+soft_float_2a.c.cil.c[1997,2010] [2022-02-20 20:01:49,860 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_2+soft_float_2a.c.cil.c[2366,2379] [2022-02-20 20:01:49,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:01:49,888 INFO L208 MainTranslator]: Completed translation [2022-02-20 20:01:49,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:49 WrapperNode [2022-02-20 20:01:49,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 20:01:49,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 20:01:49,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 20:01:49,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 20:01:49,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:49" (1/1) ... [2022-02-20 20:01:49,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:49" (1/1) ... [2022-02-20 20:01:49,947 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-02-20 20:01:49,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 20:01:49,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 20:01:49,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 20:01:49,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 20:01:49,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:49" (1/1) ... [2022-02-20 20:01:49,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:49" (1/1) ... [2022-02-20 20:01:49,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:49" (1/1) ... [2022-02-20 20:01:49,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:49" (1/1) ... [2022-02-20 20:01:49,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:49" (1/1) ... [2022-02-20 20:01:49,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:49" (1/1) ... [2022-02-20 20:01:49,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:49" (1/1) ... [2022-02-20 20:01:49,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 20:01:49,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 20:01:49,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 20:01:49,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 20:01:49,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:49" (1/1) ... [2022-02-20 20:01:49,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:01:49,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 20:01:50,008 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) [2022-02-20 20:01:50,020 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 [2022-02-20 20:01:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 20:01:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-02-20 20:01:50,044 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-02-20 20:01:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 20:01:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 20:01:50,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 20:01:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-20 20:01:50,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-20 20:01:50,095 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 20:01:50,096 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 20:01:50,486 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 20:01:50,491 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 20:01:50,492 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-20 20:01:50,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:01:50 BoogieIcfgContainer [2022-02-20 20:01:50,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 20:01:50,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 20:01:50,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 20:01:50,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 20:01:50,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 08:01:49" (1/3) ... [2022-02-20 20:01:50,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4234817d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:01:50, skipping insertion in model container [2022-02-20 20:01:50,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:49" (2/3) ... [2022-02-20 20:01:50,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4234817d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:01:50, skipping insertion in model container [2022-02-20 20:01:50,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:01:50" (3/3) ... [2022-02-20 20:01:50,498 INFO L111 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_2a.c.cil.c [2022-02-20 20:01:50,501 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 20:01:50,502 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 20:01:50,529 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 20:01:50,533 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 20:01:50,534 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 20:01:50,547 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) [2022-02-20 20:01:50,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:01:50,550 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:01:50,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:01:50,550 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:01:50,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:01:50,554 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-02-20 20:01:50,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 20:01:50,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975954882] [2022-02-20 20:01:50,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:01:50,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 20:01:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:01:50,694 INFO L290 TraceCheckUtils]: 0: Hoare triple {100#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2); {100#true} is VALID [2022-02-20 20:01:50,695 INFO L290 TraceCheckUtils]: 1: Hoare triple {100#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet30#1, main_#t~ret31#1, main_#t~ret32#1;assume -2147483648 <= main_#t~nondet30#1 && main_#t~nondet30#1 <= 2147483647; {100#true} is VALID [2022-02-20 20:01:50,695 INFO L290 TraceCheckUtils]: 2: Hoare triple {100#true} assume 0 != main_#t~nondet30#1;havoc main_#t~nondet30#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet2#1, main1_~IN~0#1, main1_~x~0#1, main1_~result~0#1;main1_~IN~0#1 := main1_#t~nondet2#1;havoc main1_#t~nondet2#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~someBinaryFLOATComparisonOperation(main1_~IN~0#1, 0.0) && ~someBinaryFLOATComparisonOperation(main1_~IN~0#1, 1.0) then 1 else 0);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {100#true} is VALID [2022-02-20 20:01:50,696 INFO L290 TraceCheckUtils]: 3: Hoare triple {100#true} assume 0 == assume_abort_if_not_~cond#1;assume false; {101#false} is VALID [2022-02-20 20:01:50,696 INFO L290 TraceCheckUtils]: 4: Hoare triple {101#false} assume { :end_inline_assume_abort_if_not } true;main1_~x~0#1 := main1_~IN~0#1;main1_~result~0#1 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(1.0, ~someBinaryArithmeticFLOAToperation(0.5, main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.125, main1_~x~0#1), main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0625, main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0390625, main1_~x~0#1), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)); {101#false} is VALID [2022-02-20 20:01:50,696 INFO L290 TraceCheckUtils]: 5: Hoare triple {101#false} assume !(~someBinaryFLOATComparisonOperation(main1_~result~0#1, 0.0) && ~someBinaryFLOATComparisonOperation(main1_~result~0#1, 1.398)); {101#false} is VALID [2022-02-20 20:01:50,697 INFO L290 TraceCheckUtils]: 6: Hoare triple {101#false} assume !false; {101#false} is VALID [2022-02-20 20:01:50,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 20:01:50,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 20:01:50,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975954882] [2022-02-20 20:01:50,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975954882] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 20:01:50,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 20:01:50,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 20:01:50,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686387799] [2022-02-20 20:01:50,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 20:01:50,706 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 [2022-02-20 20:01:50,707 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 20:01:50,709 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-20 20:01:50,723 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:01:50,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 20:01:50,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 20:01:50,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 20:01:50,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:01:50,747 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) [2022-02-20 20:01:50,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:01:50,870 INFO L93 Difference]: Finished difference Result 189 states and 311 transitions. [2022-02-20 20:01:50,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 20:01:50,871 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 [2022-02-20 20:01:50,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 20:01:50,872 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 20:01:50,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 311 transitions. [2022-02-20 20:01:50,881 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 20:01:50,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 311 transitions. [2022-02-20 20:01:50,887 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 311 transitions. [2022-02-20 20:01:51,159 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 311 edges. 311 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:01:51,174 INFO L225 Difference]: With dead ends: 189 [2022-02-20 20:01:51,174 INFO L226 Difference]: Without dead ends: 88 [2022-02-20 20:01:51,177 INFO L932 BasicCegarLoop]: 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 [2022-02-20 20:01:51,180 INFO L933 BasicCegarLoop]: 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 [2022-02-20 20:01:51,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 20:01:51,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-02-20 20:01:51,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-02-20 20:01:51,213 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 20:01:51,214 INFO L82 GeneralOperation]: Start isEquivalent. First operand 88 states. Second 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) [2022-02-20 20:01:51,215 INFO L74 IsIncluded]: Start isIncluded. First operand 88 states. Second 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) [2022-02-20 20:01:51,216 INFO L87 Difference]: Start difference. First operand 88 states. Second 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) [2022-02-20 20:01:51,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:01:51,221 INFO L93 Difference]: Finished difference Result 88 states and 129 transitions. [2022-02-20 20:01:51,221 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-02-20 20:01:51,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:01:51,223 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:01:51,223 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 88 states. [2022-02-20 20:01:51,225 INFO L87 Difference]: Start difference. First 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) Second operand 88 states. [2022-02-20 20:01:51,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:01:51,232 INFO L93 Difference]: Finished difference Result 88 states and 129 transitions. [2022-02-20 20:01:51,232 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-02-20 20:01:51,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:01:51,235 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:01:51,235 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 20:01:51,235 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 20:01:51,236 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) [2022-02-20 20:01:51,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 129 transitions. [2022-02-20 20:01:51,243 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 129 transitions. Word has length 7 [2022-02-20 20:01:51,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 20:01:51,244 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 129 transitions. [2022-02-20 20:01:51,244 INFO L471 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) [2022-02-20 20:01:51,244 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-02-20 20:01:51,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:01:51,244 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:01:51,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:01:51,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 20:01:51,245 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:01:51,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:01:51,248 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-02-20 20:01:51,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 20:01:51,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039653259] [2022-02-20 20:01:51,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:01:51,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 20:01:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:01:51,268 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 20:01:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:01:51,305 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 20:01:51,305 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 20:01:51,310 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-20 20:01:51,314 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-20 20:01:51,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 20:01:51,317 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 20:01:51,318 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 20:01:51,338 WARN L170 areAnnotationChecker]: base2fltENTRY has no Hoare annotation [2022-02-20 20:01:51,338 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 20:01:51,338 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-02-20 20:01:51,338 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:01:51,338 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:01:51,339 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 20:01:51,339 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:01:51,339 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:01:51,339 WARN L170 areAnnotationChecker]: L122 has no Hoare annotation [2022-02-20 20:01:51,339 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:01:51,339 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:01:51,339 WARN L170 areAnnotationChecker]: L322 has no Hoare annotation [2022-02-20 20:01:51,339 WARN L170 areAnnotationChecker]: L322 has no Hoare annotation [2022-02-20 20:01:51,339 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:01:51,340 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:01:51,340 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2022-02-20 20:01:51,340 WARN L170 areAnnotationChecker]: base2fltFINAL has no Hoare annotation [2022-02-20 20:01:51,340 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:01:51,340 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:01:51,340 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:01:51,340 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:01:51,340 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:01:51,340 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:01:51,340 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:01:51,341 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:01:51,341 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:01:51,341 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:01:51,341 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-02-20 20:01:51,341 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:01:51,341 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:01:51,341 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:01:51,341 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:01:51,341 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2022-02-20 20:01:51,341 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2022-02-20 20:01:51,342 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:01:51,342 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:01:51,342 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:01:51,342 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:01:51,342 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2022-02-20 20:01:51,342 WARN L170 areAnnotationChecker]: L281-1 has no Hoare annotation [2022-02-20 20:01:51,342 WARN L170 areAnnotationChecker]: L299-1 has no Hoare annotation [2022-02-20 20:01:51,342 WARN L170 areAnnotationChecker]: L282-1 has no Hoare annotation [2022-02-20 20:01:51,342 WARN L170 areAnnotationChecker]: L283-1 has no Hoare annotation [2022-02-20 20:01:51,342 WARN L170 areAnnotationChecker]: L284-1 has no Hoare annotation [2022-02-20 20:01:51,343 WARN L170 areAnnotationChecker]: L119-7 has no Hoare annotation [2022-02-20 20:01:51,343 WARN L170 areAnnotationChecker]: L119-7 has no Hoare annotation [2022-02-20 20:01:51,343 WARN L170 areAnnotationChecker]: L119-1 has no Hoare annotation [2022-02-20 20:01:51,343 WARN L170 areAnnotationChecker]: L119-1 has no Hoare annotation [2022-02-20 20:01:51,343 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:01:51,343 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:01:51,343 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:01:51,343 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:01:51,343 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:01:51,343 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:01:51,344 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:01:51,344 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:01:51,344 WARN L170 areAnnotationChecker]: L317 has no Hoare annotation [2022-02-20 20:01:51,344 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:01:51,344 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:01:51,345 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:01:51,345 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:01:51,346 WARN L170 areAnnotationChecker]: L286 has no Hoare annotation [2022-02-20 20:01:51,346 WARN L170 areAnnotationChecker]: L286 has no Hoare annotation [2022-02-20 20:01:51,346 WARN L170 areAnnotationChecker]: L120-7 has no Hoare annotation [2022-02-20 20:01:51,346 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-02-20 20:01:51,346 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-02-20 20:01:51,346 WARN L170 areAnnotationChecker]: L119-3 has no Hoare annotation [2022-02-20 20:01:51,346 WARN L170 areAnnotationChecker]: L119-3 has no Hoare annotation [2022-02-20 20:01:51,346 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:01:51,346 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:01:51,346 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2022-02-20 20:01:51,346 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2022-02-20 20:01:51,347 WARN L170 areAnnotationChecker]: L286-2 has no Hoare annotation [2022-02-20 20:01:51,347 WARN L170 areAnnotationChecker]: L289 has no Hoare annotation [2022-02-20 20:01:51,347 WARN L170 areAnnotationChecker]: L289 has no Hoare annotation [2022-02-20 20:01:51,347 WARN L170 areAnnotationChecker]: L120-3 has no Hoare annotation [2022-02-20 20:01:51,347 WARN L170 areAnnotationChecker]: L120-3 has no Hoare annotation [2022-02-20 20:01:51,347 WARN L170 areAnnotationChecker]: L119-5 has no Hoare annotation [2022-02-20 20:01:51,347 WARN L170 areAnnotationChecker]: L119-5 has no Hoare annotation [2022-02-20 20:01:51,347 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 20:01:51,347 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 20:01:51,347 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:01:51,348 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:01:51,348 WARN L170 areAnnotationChecker]: L289-2 has no Hoare annotation [2022-02-20 20:01:51,348 WARN L170 areAnnotationChecker]: L120-5 has no Hoare annotation [2022-02-20 20:01:51,348 WARN L170 areAnnotationChecker]: L120-5 has no Hoare annotation [2022-02-20 20:01:51,348 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:01:51,348 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:01:51,348 WARN L170 areAnnotationChecker]: L259 has no Hoare annotation [2022-02-20 20:01:51,348 WARN L170 areAnnotationChecker]: L214 has no Hoare annotation [2022-02-20 20:01:51,348 WARN L170 areAnnotationChecker]: L214 has no Hoare annotation [2022-02-20 20:01:51,348 WARN L170 areAnnotationChecker]: L260 has no Hoare annotation [2022-02-20 20:01:51,349 WARN L170 areAnnotationChecker]: L214-8 has no Hoare annotation [2022-02-20 20:01:51,349 WARN L170 areAnnotationChecker]: L214-2 has no Hoare annotation [2022-02-20 20:01:51,349 WARN L170 areAnnotationChecker]: L214-2 has no Hoare annotation [2022-02-20 20:01:51,349 WARN L170 areAnnotationChecker]: L299 has no Hoare annotation [2022-02-20 20:01:51,349 WARN L170 areAnnotationChecker]: L299 has no Hoare annotation [2022-02-20 20:01:51,349 WARN L170 areAnnotationChecker]: L216 has no Hoare annotation [2022-02-20 20:01:51,349 WARN L170 areAnnotationChecker]: L216 has no Hoare annotation [2022-02-20 20:01:51,349 WARN L170 areAnnotationChecker]: L214-4 has no Hoare annotation [2022-02-20 20:01:51,349 WARN L170 areAnnotationChecker]: L214-4 has no Hoare annotation [2022-02-20 20:01:51,350 WARN L170 areAnnotationChecker]: L300 has no Hoare annotation [2022-02-20 20:01:51,350 WARN L170 areAnnotationChecker]: L300 has no Hoare annotation [2022-02-20 20:01:51,350 WARN L170 areAnnotationChecker]: L216-8 has no Hoare annotation [2022-02-20 20:01:51,350 WARN L170 areAnnotationChecker]: L216-8 has no Hoare annotation [2022-02-20 20:01:51,350 WARN L170 areAnnotationChecker]: L216-2 has no Hoare annotation [2022-02-20 20:01:51,350 WARN L170 areAnnotationChecker]: L216-2 has no Hoare annotation [2022-02-20 20:01:51,351 WARN L170 areAnnotationChecker]: L214-6 has no Hoare annotation [2022-02-20 20:01:51,351 WARN L170 areAnnotationChecker]: L214-6 has no Hoare annotation [2022-02-20 20:01:51,351 WARN L170 areAnnotationChecker]: L300-2 has no Hoare annotation [2022-02-20 20:01:51,351 WARN L170 areAnnotationChecker]: L300-2 has no Hoare annotation [2022-02-20 20:01:51,351 WARN L170 areAnnotationChecker]: L303 has no Hoare annotation [2022-02-20 20:01:51,352 WARN L170 areAnnotationChecker]: L303 has no Hoare annotation [2022-02-20 20:01:51,353 WARN L170 areAnnotationChecker]: L217-7 has no Hoare annotation [2022-02-20 20:01:51,353 WARN L170 areAnnotationChecker]: L217-1 has no Hoare annotation [2022-02-20 20:01:51,353 WARN L170 areAnnotationChecker]: L217-1 has no Hoare annotation [2022-02-20 20:01:51,353 WARN L170 areAnnotationChecker]: L216-4 has no Hoare annotation [2022-02-20 20:01:51,354 WARN L170 areAnnotationChecker]: L216-4 has no Hoare annotation [2022-02-20 20:01:51,354 WARN L170 areAnnotationChecker]: L303-2 has no Hoare annotation [2022-02-20 20:01:51,354 WARN L170 areAnnotationChecker]: L219 has no Hoare annotation [2022-02-20 20:01:51,354 WARN L170 areAnnotationChecker]: L219 has no Hoare annotation [2022-02-20 20:01:51,354 WARN L170 areAnnotationChecker]: L217-3 has no Hoare annotation [2022-02-20 20:01:51,355 WARN L170 areAnnotationChecker]: L217-3 has no Hoare annotation [2022-02-20 20:01:51,355 WARN L170 areAnnotationChecker]: L216-6 has no Hoare annotation [2022-02-20 20:01:51,355 WARN L170 areAnnotationChecker]: L216-6 has no Hoare annotation [2022-02-20 20:01:51,355 WARN L170 areAnnotationChecker]: L219-8 has no Hoare annotation [2022-02-20 20:01:51,355 WARN L170 areAnnotationChecker]: L219-2 has no Hoare annotation [2022-02-20 20:01:51,355 WARN L170 areAnnotationChecker]: L219-2 has no Hoare annotation [2022-02-20 20:01:51,355 WARN L170 areAnnotationChecker]: L217-5 has no Hoare annotation [2022-02-20 20:01:51,355 WARN L170 areAnnotationChecker]: L217-5 has no Hoare annotation [2022-02-20 20:01:51,355 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:01:51,356 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:01:51,356 WARN L170 areAnnotationChecker]: L219-4 has no Hoare annotation [2022-02-20 20:01:51,356 WARN L170 areAnnotationChecker]: L219-4 has no Hoare annotation [2022-02-20 20:01:51,356 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:01:51,356 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:01:51,356 WARN L170 areAnnotationChecker]: L219-6 has no Hoare annotation [2022-02-20 20:01:51,356 WARN L170 areAnnotationChecker]: L219-6 has no Hoare annotation [2022-02-20 20:01:51,356 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:01:51,356 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:01:51,356 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:01:51,356 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:01:51,357 WARN L170 areAnnotationChecker]: L237-2 has no Hoare annotation [2022-02-20 20:01:51,357 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:01:51,357 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:01:51,357 WARN L170 areAnnotationChecker]: L256 has no Hoare annotation [2022-02-20 20:01:51,357 WARN L170 areAnnotationChecker]: L256 has no Hoare annotation [2022-02-20 20:01:51,357 WARN L170 areAnnotationChecker]: L256-8 has no Hoare annotation [2022-02-20 20:01:51,357 WARN L170 areAnnotationChecker]: L256-8 has no Hoare annotation [2022-02-20 20:01:51,357 WARN L170 areAnnotationChecker]: L256-2 has no Hoare annotation [2022-02-20 20:01:51,357 WARN L170 areAnnotationChecker]: L256-2 has no Hoare annotation [2022-02-20 20:01:51,357 WARN L170 areAnnotationChecker]: L257-7 has no Hoare annotation [2022-02-20 20:01:51,358 WARN L170 areAnnotationChecker]: L257-1 has no Hoare annotation [2022-02-20 20:01:51,358 WARN L170 areAnnotationChecker]: L257-1 has no Hoare annotation [2022-02-20 20:01:51,358 WARN L170 areAnnotationChecker]: L256-4 has no Hoare annotation [2022-02-20 20:01:51,358 WARN L170 areAnnotationChecker]: L256-4 has no Hoare annotation [2022-02-20 20:01:51,358 WARN L170 areAnnotationChecker]: L257-3 has no Hoare annotation [2022-02-20 20:01:51,358 WARN L170 areAnnotationChecker]: L257-3 has no Hoare annotation [2022-02-20 20:01:51,358 WARN L170 areAnnotationChecker]: L256-6 has no Hoare annotation [2022-02-20 20:01:51,358 WARN L170 areAnnotationChecker]: L256-6 has no Hoare annotation [2022-02-20 20:01:51,358 WARN L170 areAnnotationChecker]: L257-5 has no Hoare annotation [2022-02-20 20:01:51,359 WARN L170 areAnnotationChecker]: L257-5 has no Hoare annotation [2022-02-20 20:01:51,359 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 20:01:51,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 08:01:51 BoogieIcfgContainer [2022-02-20 20:01:51,361 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 20:01:51,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 20:01:51,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 20:01:51,362 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 20:01:51,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:01:50" (3/4) ... [2022-02-20 20:01:51,364 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 20:01:51,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 20:01:51,365 INFO L158 Benchmark]: Toolchain (without parser) took 1821.58ms. Allocated memory is still 119.5MB. Free memory was 81.9MB in the beginning and 43.0MB in the end (delta: 39.0MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2022-02-20 20:01:51,366 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory was 98.9MB in the beginning and 98.8MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:01:51,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.33ms. Allocated memory is still 119.5MB. Free memory was 81.7MB in the beginning and 88.7MB in the end (delta: -7.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-20 20:01:51,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.25ms. Allocated memory is still 119.5MB. Free memory was 88.7MB in the beginning and 85.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-20 20:01:51,366 INFO L158 Benchmark]: Boogie Preprocessor took 21.61ms. Allocated memory is still 119.5MB. Free memory was 85.7MB in the beginning and 84.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:01:51,367 INFO L158 Benchmark]: RCFGBuilder took 523.04ms. Allocated memory is still 119.5MB. Free memory was 84.0MB in the beginning and 58.1MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-02-20 20:01:51,367 INFO L158 Benchmark]: TraceAbstraction took 866.66ms. Allocated memory is still 119.5MB. Free memory was 57.3MB in the beginning and 43.6MB in the end (delta: 13.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-02-20 20:01:51,369 INFO L158 Benchmark]: Witness Printer took 3.10ms. Allocated memory is still 119.5MB. Free memory is still 43.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:01:51,377 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory was 98.9MB in the beginning and 98.8MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.33ms. Allocated memory is still 119.5MB. Free memory was 81.7MB in the beginning and 88.7MB in the end (delta: -7.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.25ms. Allocated memory is still 119.5MB. Free memory was 88.7MB in the beginning and 85.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.61ms. Allocated memory is still 119.5MB. Free memory was 85.7MB in the beginning and 84.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 523.04ms. Allocated memory is still 119.5MB. Free memory was 84.0MB in the beginning and 58.1MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 866.66ms. Allocated memory is still 119.5MB. Free memory was 57.3MB in the beginning and 43.6MB in the end (delta: 13.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Witness Printer took 3.10ms. Allocated memory is still 119.5MB. Free memory is still 43.6MB. 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 < 1.398f) 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s 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 [2022-02-20 20:01:51,405 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 -ea -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_2+soft_float_2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 20:01:53,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 20:01:53,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 20:01:53,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 20:01:53,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 20:01:53,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 20:01:53,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 20:01:53,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 20:01:53,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 20:01:53,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 20:01:53,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 20:01:53,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 20:01:53,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 20:01:53,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 20:01:53,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 20:01:53,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 20:01:53,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 20:01:53,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 20:01:53,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 20:01:53,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 20:01:53,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 20:01:53,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 20:01:53,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 20:01:53,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 20:01:53,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 20:01:53,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 20:01:53,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 20:01:53,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 20:01:53,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 20:01:53,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 20:01:53,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 20:01:53,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 20:01:53,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 20:01:53,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 20:01:53,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 20:01:53,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 20:01:53,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 20:01:53,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 20:01:53,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 20:01:53,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 20:01:53,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 20:01:53,135 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 20:01:53,164 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 20:01:53,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 20:01:53,165 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 20:01:53,165 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 20:01:53,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 20:01:53,166 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 20:01:53,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 20:01:53,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 20:01:53,168 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 20:01:53,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 20:01:53,169 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 20:01:53,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 20:01:53,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 20:01:53,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 20:01:53,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 20:01:53,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 20:01:53,169 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 20:01:53,170 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 20:01:53,170 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 20:01:53,170 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 20:01:53,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 20:01:53,170 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 20:01:53,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 20:01:53,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 20:01:53,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 20:01:53,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 20:01:53,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:01:53,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 20:01:53,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 20:01:53,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 20:01:53,171 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 20:01:53,172 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 20:01:53,172 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 20:01:53,172 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 20:01:53,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 20:01:53,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 20:01:53,172 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 [2022-02-20 20:01:53,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 20:01:53,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 20:01:53,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 20:01:53,459 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 20:01:53,460 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 20:01:53,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2022-02-20 20:01:53,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4970ff157/773eeb11710e4bb2a0220f9cc465955a/FLAG1df03bef4 [2022-02-20 20:01:53,904 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 20:01:53,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2022-02-20 20:01:53,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4970ff157/773eeb11710e4bb2a0220f9cc465955a/FLAG1df03bef4 [2022-02-20 20:01:53,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4970ff157/773eeb11710e4bb2a0220f9cc465955a [2022-02-20 20:01:53,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 20:01:53,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 20:01:53,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 20:01:53,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 20:01:53,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 20:01:53,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:01:53" (1/1) ... [2022-02-20 20:01:53,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a2d6735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:53, skipping insertion in model container [2022-02-20 20:01:53,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:01:53" (1/1) ... [2022-02-20 20:01:53,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 20:01:53,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 20:01:54,113 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_2+soft_float_2a.c.cil.c[1997,2010] [2022-02-20 20:01:54,118 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_2+soft_float_2a.c.cil.c[2366,2379] [2022-02-20 20:01:54,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:01:54,207 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 20:01:54,226 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_2+soft_float_2a.c.cil.c[1997,2010] [2022-02-20 20:01:54,228 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_2+soft_float_2a.c.cil.c[2366,2379] [2022-02-20 20:01:54,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:01:54,259 INFO L208 MainTranslator]: Completed translation [2022-02-20 20:01:54,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:54 WrapperNode [2022-02-20 20:01:54,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 20:01:54,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 20:01:54,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 20:01:54,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 20:01:54,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:54" (1/1) ... [2022-02-20 20:01:54,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:54" (1/1) ... [2022-02-20 20:01:54,301 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-02-20 20:01:54,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 20:01:54,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 20:01:54,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 20:01:54,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 20:01:54,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:54" (1/1) ... [2022-02-20 20:01:54,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:54" (1/1) ... [2022-02-20 20:01:54,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:54" (1/1) ... [2022-02-20 20:01:54,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:54" (1/1) ... [2022-02-20 20:01:54,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:54" (1/1) ... [2022-02-20 20:01:54,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:54" (1/1) ... [2022-02-20 20:01:54,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:54" (1/1) ... [2022-02-20 20:01:54,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 20:01:54,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 20:01:54,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 20:01:54,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 20:01:54,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:54" (1/1) ... [2022-02-20 20:01:54,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:01:54,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 20:01:54,364 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) [2022-02-20 20:01:54,377 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 [2022-02-20 20:01:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 20:01:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 20:01:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-02-20 20:01:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-02-20 20:01:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 20:01:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 20:01:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-20 20:01:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-20 20:01:54,450 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 20:01:54,451 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 20:01:56,908 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 20:01:56,913 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 20:01:56,913 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-20 20:01:56,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:01:56 BoogieIcfgContainer [2022-02-20 20:01:56,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 20:01:56,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 20:01:56,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 20:01:56,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 20:01:56,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 08:01:53" (1/3) ... [2022-02-20 20:01:56,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d91fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:01:56, skipping insertion in model container [2022-02-20 20:01:56,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:01:54" (2/3) ... [2022-02-20 20:01:56,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d91fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:01:56, skipping insertion in model container [2022-02-20 20:01:56,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:01:56" (3/3) ... [2022-02-20 20:01:56,919 INFO L111 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_2a.c.cil.c [2022-02-20 20:01:56,922 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 20:01:56,923 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 20:01:56,949 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 20:01:56,953 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 20:01:56,953 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 20:01:56,970 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) [2022-02-20 20:01:56,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:01:56,973 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:01:56,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:01:56,974 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:01:56,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:01:56,981 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-02-20 20:01:56,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 20:01:56,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757105659] [2022-02-20 20:01:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:01:56,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 20:01:56,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 20:01:56,991 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) [2022-02-20 20:01:56,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 20:01:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:01:57,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 20:01:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:01:57,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 20:01:57,428 INFO L290 TraceCheckUtils]: 0: Hoare triple {64#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(11bv32, 2bv32); {64#true} is VALID [2022-02-20 20:01:57,429 INFO L290 TraceCheckUtils]: 1: Hoare triple {64#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~ret17#1, main_#t~ret18#1; {64#true} is VALID [2022-02-20 20:01:57,429 INFO L290 TraceCheckUtils]: 2: Hoare triple {64#true} assume 0bv32 != main_#t~nondet16#1;havoc main_#t~nondet16#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet2#1, main1_~IN~0#1, main1_~x~0#1, main1_~result~0#1;main1_~IN~0#1 := main1_#t~nondet2#1;havoc main1_#t~nondet2#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~fp.geq~FLOAT(main1_~IN~0#1, ~Pluszero~FLOAT()) && ~fp.lt~FLOAT(main1_~IN~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.0)) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {64#true} is VALID [2022-02-20 20:01:57,430 INFO L290 TraceCheckUtils]: 3: Hoare triple {64#true} assume 0bv32 == assume_abort_if_not_~cond#1;assume false; {65#false} is VALID [2022-02-20 20:01:57,430 INFO L290 TraceCheckUtils]: 4: Hoare triple {65#false} assume { :end_inline_assume_abort_if_not } true;main1_~x~0#1 := main1_~IN~0#1;main1_~result~0#1 := ~fp.sub~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 1.0), ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.5), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.125), main1_~x~0#1), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.0625), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.0390625), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)); {65#false} is VALID [2022-02-20 20:01:57,431 INFO L290 TraceCheckUtils]: 5: Hoare triple {65#false} assume !(~fp.geq~FLOAT(main1_~result~0#1, ~Pluszero~FLOAT()) && ~fp.lt~FLOAT(main1_~result~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.398))); {65#false} is VALID [2022-02-20 20:01:57,431 INFO L290 TraceCheckUtils]: 6: Hoare triple {65#false} assume !false; {65#false} is VALID [2022-02-20 20:01:57,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 20:01:57,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 20:01:57,433 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 20:01:57,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757105659] [2022-02-20 20:01:57,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757105659] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 20:01:57,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 20:01:57,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 20:01:57,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647854361] [2022-02-20 20:01:57,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 20:01:57,440 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 [2022-02-20 20:01:57,441 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 20:01:57,443 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-20 20:01:57,719 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:01:57,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 20:01:57,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 20:01:57,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 20:01:57,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:01:57,745 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) [2022-02-20 20:02:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:02:00,222 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-02-20 20:02:00,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 20:02:00,222 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 [2022-02-20 20:02:00,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 20:02:00,223 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 20:02:00,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 175 transitions. [2022-02-20 20:02:00,230 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 20:02:00,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 175 transitions. [2022-02-20 20:02:00,234 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 175 transitions. [2022-02-20 20:02:00,840 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 175 edges. 175 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:02:00,847 INFO L225 Difference]: With dead ends: 117 [2022-02-20 20:02:00,847 INFO L226 Difference]: Without dead ends: 52 [2022-02-20 20:02:00,849 INFO L932 BasicCegarLoop]: 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 [2022-02-20 20:02:00,851 INFO L933 BasicCegarLoop]: 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 [2022-02-20 20:02:00,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 20:02:00,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-02-20 20:02:00,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-02-20 20:02:00,879 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 20:02:00,880 INFO L82 GeneralOperation]: Start isEquivalent. First operand 52 states. Second 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) [2022-02-20 20:02:00,880 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second 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) [2022-02-20 20:02:00,881 INFO L87 Difference]: Start difference. First operand 52 states. Second 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) [2022-02-20 20:02:00,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:02:00,884 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2022-02-20 20:02:00,884 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-02-20 20:02:00,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:02:00,886 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:02:00,889 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 52 states. [2022-02-20 20:02:00,889 INFO L87 Difference]: Start difference. First 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) Second operand 52 states. [2022-02-20 20:02:00,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:02:00,894 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2022-02-20 20:02:00,894 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-02-20 20:02:00,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:02:00,896 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:02:00,896 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 20:02:00,896 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 20:02:00,899 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) [2022-02-20 20:02:00,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-02-20 20:02:00,902 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-02-20 20:02:00,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 20:02:00,902 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-02-20 20:02:00,902 INFO L471 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) [2022-02-20 20:02:00,902 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-02-20 20:02:00,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:02:00,903 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:02:00,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:02:00,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 20:02:01,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 20:02:01,104 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:02:01,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:02:01,105 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-02-20 20:02:01,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 20:02:01,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463891] [2022-02-20 20:02:01,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:02:01,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 20:02:01,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 20:02:01,107 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) [2022-02-20 20:02:01,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-02-20 20:02:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:02:26,295 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 20:02:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:02:47,169 INFO L138 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-02-20 20:02:47,169 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 20:02:47,170 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-20 20:02:47,171 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-20 20:02:47,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-02-20 20:02:47,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 20:02:47,374 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 20:02:47,376 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 20:02:47,388 WARN L170 areAnnotationChecker]: base2fltENTRY has no Hoare annotation [2022-02-20 20:02:47,389 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 20:02:47,389 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-02-20 20:02:47,389 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:02:47,389 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:02:47,389 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 20:02:47,389 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:02:47,389 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:02:47,389 WARN L170 areAnnotationChecker]: L122 has no Hoare annotation [2022-02-20 20:02:47,390 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:02:47,390 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:02:47,390 WARN L170 areAnnotationChecker]: L322 has no Hoare annotation [2022-02-20 20:02:47,390 WARN L170 areAnnotationChecker]: L322 has no Hoare annotation [2022-02-20 20:02:47,390 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:02:47,390 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:02:47,390 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2022-02-20 20:02:47,390 WARN L170 areAnnotationChecker]: base2fltFINAL has no Hoare annotation [2022-02-20 20:02:47,390 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:02:47,391 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:02:47,391 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:02:47,391 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:02:47,391 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:02:47,391 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:02:47,391 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:02:47,391 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:02:47,391 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:02:47,391 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:02:47,392 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-02-20 20:02:47,392 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:02:47,392 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:02:47,392 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:02:47,392 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:02:47,392 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2022-02-20 20:02:47,392 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:02:47,392 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:02:47,392 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:02:47,392 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:02:47,393 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2022-02-20 20:02:47,393 WARN L170 areAnnotationChecker]: L281-1 has no Hoare annotation [2022-02-20 20:02:47,393 WARN L170 areAnnotationChecker]: L299-1 has no Hoare annotation [2022-02-20 20:02:47,393 WARN L170 areAnnotationChecker]: L282-1 has no Hoare annotation [2022-02-20 20:02:47,393 WARN L170 areAnnotationChecker]: L283-1 has no Hoare annotation [2022-02-20 20:02:47,393 WARN L170 areAnnotationChecker]: L284-1 has no Hoare annotation [2022-02-20 20:02:47,393 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:02:47,393 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:02:47,393 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:02:47,394 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:02:47,394 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:02:47,394 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:02:47,394 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:02:47,394 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:02:47,394 WARN L170 areAnnotationChecker]: L317 has no Hoare annotation [2022-02-20 20:02:47,394 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:02:47,394 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:02:47,394 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:02:47,395 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:02:47,395 WARN L170 areAnnotationChecker]: L286 has no Hoare annotation [2022-02-20 20:02:47,395 WARN L170 areAnnotationChecker]: L286 has no Hoare annotation [2022-02-20 20:02:47,395 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:02:47,396 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:02:47,397 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2022-02-20 20:02:47,397 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2022-02-20 20:02:47,397 WARN L170 areAnnotationChecker]: L286-2 has no Hoare annotation [2022-02-20 20:02:47,397 WARN L170 areAnnotationChecker]: L289 has no Hoare annotation [2022-02-20 20:02:47,397 WARN L170 areAnnotationChecker]: L289 has no Hoare annotation [2022-02-20 20:02:47,397 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 20:02:47,397 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 20:02:47,397 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:02:47,398 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:02:47,398 WARN L170 areAnnotationChecker]: L289-2 has no Hoare annotation [2022-02-20 20:02:47,398 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:02:47,398 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:02:47,398 WARN L170 areAnnotationChecker]: L259 has no Hoare annotation [2022-02-20 20:02:47,398 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:02:47,398 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:02:47,398 WARN L170 areAnnotationChecker]: L260 has no Hoare annotation [2022-02-20 20:02:47,398 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:02:47,398 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:02:47,399 WARN L170 areAnnotationChecker]: L299 has no Hoare annotation [2022-02-20 20:02:47,399 WARN L170 areAnnotationChecker]: L299 has no Hoare annotation [2022-02-20 20:02:47,399 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:02:47,399 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:02:47,399 WARN L170 areAnnotationChecker]: L300 has no Hoare annotation [2022-02-20 20:02:47,399 WARN L170 areAnnotationChecker]: L300 has no Hoare annotation [2022-02-20 20:02:47,399 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:02:47,399 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:02:47,399 WARN L170 areAnnotationChecker]: L237-2 has no Hoare annotation [2022-02-20 20:02:47,400 WARN L170 areAnnotationChecker]: L300-2 has no Hoare annotation [2022-02-20 20:02:47,400 WARN L170 areAnnotationChecker]: L300-2 has no Hoare annotation [2022-02-20 20:02:47,400 WARN L170 areAnnotationChecker]: L303 has no Hoare annotation [2022-02-20 20:02:47,400 WARN L170 areAnnotationChecker]: L303 has no Hoare annotation [2022-02-20 20:02:47,400 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:02:47,400 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:02:47,400 WARN L170 areAnnotationChecker]: L303-2 has no Hoare annotation [2022-02-20 20:02:47,400 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 20:02:47,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 08:02:47 BoogieIcfgContainer [2022-02-20 20:02:47,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 20:02:47,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 20:02:47,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 20:02:47,402 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 20:02:47,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:01:56" (3/4) ... [2022-02-20 20:02:47,404 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-02-20 20:02:47,428 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-20 20:02:47,428 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 20:02:47,429 INFO L158 Benchmark]: Toolchain (without parser) took 53496.17ms. Allocated memory is still 73.4MB. Free memory was 57.5MB in the beginning and 40.2MB in the end (delta: 17.3MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-02-20 20:02:47,429 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 73.4MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:02:47,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.93ms. Allocated memory is still 73.4MB. Free memory was 57.4MB in the beginning and 52.1MB in the end (delta: 5.2MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2022-02-20 20:02:47,430 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.70ms. Allocated memory is still 73.4MB. Free memory was 52.1MB in the beginning and 49.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:02:47,430 INFO L158 Benchmark]: Boogie Preprocessor took 36.88ms. Allocated memory is still 73.4MB. Free memory was 49.6MB in the beginning and 48.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:02:47,433 INFO L158 Benchmark]: RCFGBuilder took 2575.49ms. Allocated memory is still 73.4MB. Free memory was 47.8MB in the beginning and 32.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-02-20 20:02:47,434 INFO L158 Benchmark]: TraceAbstraction took 50485.75ms. Allocated memory is still 73.4MB. Free memory was 31.8MB in the beginning and 42.3MB in the end (delta: -10.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:02:47,434 INFO L158 Benchmark]: Witness Printer took 26.60ms. Allocated memory is still 73.4MB. Free memory was 42.3MB in the beginning and 40.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:02:47,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 73.4MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.93ms. Allocated memory is still 73.4MB. Free memory was 57.4MB in the beginning and 52.1MB in the end (delta: 5.2MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.70ms. Allocated memory is still 73.4MB. Free memory was 52.1MB in the beginning and 49.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.88ms. Allocated memory is still 73.4MB. Free memory was 49.6MB in the beginning and 48.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2575.49ms. Allocated memory is still 73.4MB. Free memory was 47.8MB in the beginning and 32.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 50485.75ms. Allocated memory is still 73.4MB. Free memory was 31.8MB in the beginning and 42.3MB in the end (delta: -10.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 26.60ms. Allocated memory is still 73.4MB. Free memory was 42.3MB in the beginning and 40.2MB in the end (delta: 2.1MB). 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=0.9989765286445618, result=1.3981493711471558, x=0.9989765286445618] [L47] COND TRUE !(result >= 0.0f && result < 1.398f) VAL [IN=0.9989765286445618, result=1.3981493711471558, x=0.9989765286445618] [L48] reach_error() VAL [IN=0.9989765286445618, result=1.3981493711471558, x=0.9989765286445618] - 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: 50.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 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, 25.5s 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! [2022-02-20 20:02:47,505 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