./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/sine_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/sine_2.i -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 1517518b2929304c1d62801e91d682ef21acf90ffd67632c12c51027ad768f4b --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:00:24,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:00:24,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:00:25,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:00:25,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:00:25,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:00:25,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:00:25,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:00:25,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:00:25,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:00:25,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:00:25,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:00:25,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:00:25,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:00:25,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:00:25,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:00:25,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:00:25,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:00:25,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:00:25,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:00:25,036 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:00:25,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:00:25,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:00:25,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:00:25,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:00:25,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:00:25,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:00:25,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:00:25,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:00:25,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:00:25,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:00:25,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:00:25,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:00:25,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:00:25,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:00:25,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:00:25,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:00:25,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:00:25,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:00:25,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:00:25,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:00:25,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:00:25,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 14:00:25,098 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:00:25,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:00:25,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:00:25,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:00:25,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:00:25,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:00:25,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:00:25,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:00:25,101 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:00:25,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:00:25,102 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:00:25,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 14:00:25,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:00:25,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:00:25,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:00:25,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:00:25,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:00:25,103 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:00:25,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:00:25,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:00:25,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:00:25,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:00:25,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:00:25,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:00:25,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:00:25,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:00:25,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:00:25,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:00:25,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 14:00:25,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 14:00:25,107 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:00:25,107 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:00:25,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:00:25,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1517518b2929304c1d62801e91d682ef21acf90ffd67632c12c51027ad768f4b [2022-07-13 14:00:25,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:00:25,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:00:25,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:00:25,444 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:00:25,444 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:00:25,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_2.i [2022-07-13 14:00:25,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7022acc50/caaed02ebd7a47399a7b8fc70d82dcb9/FLAG0fa23083f [2022-07-13 14:00:25,933 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:00:25,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_2.i [2022-07-13 14:00:25,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7022acc50/caaed02ebd7a47399a7b8fc70d82dcb9/FLAG0fa23083f [2022-07-13 14:00:26,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7022acc50/caaed02ebd7a47399a7b8fc70d82dcb9 [2022-07-13 14:00:26,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:00:26,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:00:26,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:00:26,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:00:26,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:00:26,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:00:26" (1/1) ... [2022-07-13 14:00:26,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a9bf642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:26, skipping insertion in model container [2022-07-13 14:00:26,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:00:26" (1/1) ... [2022-07-13 14:00:26,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:00:26,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:00:26,510 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/floats-cdfpl/sine_2.i[1641,1654] [2022-07-13 14:00:26,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:00:26,523 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:00:26,542 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/floats-cdfpl/sine_2.i[1641,1654] [2022-07-13 14:00:26,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:00:26,559 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:00:26,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:26 WrapperNode [2022-07-13 14:00:26,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:00:26,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:00:26,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:00:26,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:00:26,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:26" (1/1) ... [2022-07-13 14:00:26,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:26" (1/1) ... [2022-07-13 14:00:26,591 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2022-07-13 14:00:26,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:00:26,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:00:26,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:00:26,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:00:26,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:26" (1/1) ... [2022-07-13 14:00:26,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:26" (1/1) ... [2022-07-13 14:00:26,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:26" (1/1) ... [2022-07-13 14:00:26,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:26" (1/1) ... [2022-07-13 14:00:26,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:26" (1/1) ... [2022-07-13 14:00:26,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:26" (1/1) ... [2022-07-13 14:00:26,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:26" (1/1) ... [2022-07-13 14:00:26,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:00:26,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:00:26,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:00:26,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:00:26,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:26" (1/1) ... [2022-07-13 14:00:26,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:00:26,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:00:26,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 14:00:26,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 14:00:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:00:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 14:00:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:00:26,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:00:26,753 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:00:26,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:00:26,848 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:00:26,853 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:00:26,853 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 14:00:26,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:00:26 BoogieIcfgContainer [2022-07-13 14:00:26,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:00:26,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:00:26,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:00:26,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:00:26,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:00:26" (1/3) ... [2022-07-13 14:00:26,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15273275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:00:26, skipping insertion in model container [2022-07-13 14:00:26,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:26" (2/3) ... [2022-07-13 14:00:26,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15273275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:00:26, skipping insertion in model container [2022-07-13 14:00:26,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:00:26" (3/3) ... [2022-07-13 14:00:26,864 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_2.i [2022-07-13 14:00:26,876 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:00:26,877 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:00:26,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:00:26,940 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@277bc336, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@62651267 [2022-07-13 14:00:26,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:00:26,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:00:26,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 14:00:26,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:00:26,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 14:00:26,958 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:00:26,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:00:26,964 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2022-07-13 14:00:26,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:00:26,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532556515] [2022-07-13 14:00:26,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:00:26,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:00:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:00:27,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:00:27,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:00:27,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532556515] [2022-07-13 14:00:27,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532556515] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:00:27,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:00:27,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:00:27,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425485735] [2022-07-13 14:00:27,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:00:27,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:00:27,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:00:27,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:00:27,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:00:27,142 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:00:27,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:00:27,153 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-07-13 14:00:27,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:00:27,155 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-07-13 14:00:27,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:00:27,162 INFO L225 Difference]: With dead ends: 19 [2022-07-13 14:00:27,163 INFO L226 Difference]: Without dead ends: 7 [2022-07-13 14:00:27,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:00:27,171 INFO L413 NwaCegarLoop]: 10 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, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:00:27,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:00:27,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-07-13 14:00:27,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-07-13 14:00:27,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:00:27,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2022-07-13 14:00:27,200 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2022-07-13 14:00:27,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:00:27,201 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2022-07-13 14:00:27,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:00:27,201 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2022-07-13 14:00:27,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 14:00:27,201 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:00:27,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 14:00:27,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 14:00:27,202 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:00:27,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:00:27,203 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2022-07-13 14:00:27,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:00:27,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345451538] [2022-07-13 14:00:27,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:00:27,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:00:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:00:27,219 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 14:00:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:00:27,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 14:00:27,243 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 14:00:27,244 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:00:27,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 14:00:27,250 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 14:00:27,253 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:00:27,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:00:27 BoogieIcfgContainer [2022-07-13 14:00:27,270 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:00:27,270 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:00:27,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:00:27,271 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:00:27,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:00:26" (3/4) ... [2022-07-13 14:00:27,274 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 14:00:27,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:00:27,275 INFO L158 Benchmark]: Toolchain (without parser) took 950.21ms. Allocated memory is still 100.7MB. Free memory was 63.2MB in the beginning and 41.8MB in the end (delta: 21.4MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2022-07-13 14:00:27,275 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 79.3MB in the beginning and 79.2MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:00:27,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.44ms. Allocated memory is still 100.7MB. Free memory was 63.0MB in the beginning and 75.4MB in the end (delta: -12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:00:27,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.80ms. Allocated memory is still 100.7MB. Free memory was 75.4MB in the beginning and 74.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:00:27,277 INFO L158 Benchmark]: Boogie Preprocessor took 23.92ms. Allocated memory is still 100.7MB. Free memory was 74.1MB in the beginning and 73.1MB in the end (delta: 934.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:00:27,277 INFO L158 Benchmark]: RCFGBuilder took 237.66ms. Allocated memory is still 100.7MB. Free memory was 73.1MB in the beginning and 64.5MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:00:27,277 INFO L158 Benchmark]: TraceAbstraction took 412.47ms. Allocated memory is still 100.7MB. Free memory was 64.1MB in the beginning and 42.2MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-07-13 14:00:27,278 INFO L158 Benchmark]: Witness Printer took 3.68ms. Allocated memory is still 100.7MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:00:27,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 79.3MB in the beginning and 79.2MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.44ms. Allocated memory is still 100.7MB. Free memory was 63.0MB in the beginning and 75.4MB in the end (delta: -12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.80ms. Allocated memory is still 100.7MB. Free memory was 75.4MB in the beginning and 74.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.92ms. Allocated memory is still 100.7MB. Free memory was 74.1MB in the beginning and 73.1MB in the end (delta: 934.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 237.66ms. Allocated memory is still 100.7MB. Free memory was 73.1MB in the beginning and 64.5MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 412.47ms. Allocated memory is still 100.7MB. Free memory was 64.1MB in the beginning and 42.2MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 3.68ms. Allocated memory is still 100.7MB. Free memory is still 41.8MB. 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: 37]: 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 36, overapproximation of someBinaryArithmeticFLOAToperation at line 34. Possible FailurePath: [L29] float IN = __VERIFIER_nondet_float(); [L30] CALL assume_abort_if_not(IN > -1.57079632679f && IN < 1.57079632679f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L30] RET assume_abort_if_not(IN > -1.57079632679f && IN < 1.57079632679f) [L32] float x = IN; [L34] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [IN=49, x=49] [L36] COND TRUE !(result <= 1.0f && result >= -1.0f) VAL [IN=49, x=49] [L37] reach_error() VAL [IN=49, x=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 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, 10 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=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-13 14:00:27,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/sine_2.i -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 1517518b2929304c1d62801e91d682ef21acf90ffd67632c12c51027ad768f4b --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:00:29,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:00:29,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:00:29,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:00:29,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:00:29,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:00:29,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:00:29,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:00:29,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:00:29,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:00:29,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:00:29,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:00:29,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:00:29,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:00:29,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:00:29,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:00:29,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:00:29,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:00:29,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:00:29,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:00:29,419 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:00:29,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:00:29,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:00:29,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:00:29,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:00:29,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:00:29,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:00:29,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:00:29,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:00:29,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:00:29,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:00:29,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:00:29,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:00:29,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:00:29,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:00:29,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:00:29,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:00:29,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:00:29,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:00:29,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:00:29,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:00:29,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:00:29,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 14:00:29,478 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:00:29,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:00:29,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:00:29,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:00:29,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:00:29,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:00:29,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:00:29,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:00:29,490 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:00:29,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:00:29,491 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:00:29,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:00:29,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:00:29,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:00:29,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:00:29,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:00:29,492 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 14:00:29,492 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 14:00:29,492 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 14:00:29,493 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:00:29,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:00:29,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:00:29,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:00:29,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:00:29,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:00:29,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:00:29,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:00:29,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:00:29,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:00:29,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:00:29,495 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 14:00:29,495 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 14:00:29,495 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:00:29,496 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:00:29,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:00:29,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 14:00:29,496 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1517518b2929304c1d62801e91d682ef21acf90ffd67632c12c51027ad768f4b [2022-07-13 14:00:29,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:00:29,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:00:29,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:00:29,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:00:29,811 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:00:29,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_2.i [2022-07-13 14:00:29,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a7d630c8/9c87c096ba4840d585607bbce49d9fbe/FLAGbe6340847 [2022-07-13 14:00:30,279 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:00:30,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_2.i [2022-07-13 14:00:30,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a7d630c8/9c87c096ba4840d585607bbce49d9fbe/FLAGbe6340847 [2022-07-13 14:00:30,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a7d630c8/9c87c096ba4840d585607bbce49d9fbe [2022-07-13 14:00:30,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:00:30,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:00:30,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:00:30,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:00:30,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:00:30,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:00:30" (1/1) ... [2022-07-13 14:00:30,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79f22fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:30, skipping insertion in model container [2022-07-13 14:00:30,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:00:30" (1/1) ... [2022-07-13 14:00:30,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:00:30,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:00:30,501 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/floats-cdfpl/sine_2.i[1641,1654] [2022-07-13 14:00:30,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:00:30,525 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:00:30,553 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/floats-cdfpl/sine_2.i[1641,1654] [2022-07-13 14:00:30,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:00:30,576 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:00:30,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:30 WrapperNode [2022-07-13 14:00:30,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:00:30,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:00:30,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:00:30,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:00:30,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:30" (1/1) ... [2022-07-13 14:00:30,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:30" (1/1) ... [2022-07-13 14:00:30,615 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2022-07-13 14:00:30,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:00:30,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:00:30,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:00:30,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:00:30,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:30" (1/1) ... [2022-07-13 14:00:30,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:30" (1/1) ... [2022-07-13 14:00:30,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:30" (1/1) ... [2022-07-13 14:00:30,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:30" (1/1) ... [2022-07-13 14:00:30,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:30" (1/1) ... [2022-07-13 14:00:30,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:30" (1/1) ... [2022-07-13 14:00:30,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:30" (1/1) ... [2022-07-13 14:00:30,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:00:30,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:00:30,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:00:30,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:00:30,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:30" (1/1) ... [2022-07-13 14:00:30,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:00:30,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:00:30,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 14:00:30,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 14:00:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:00:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 14:00:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:00:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:00:30,793 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:00:30,795 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:00:33,182 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:00:33,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:00:33,187 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 14:00:33,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:00:33 BoogieIcfgContainer [2022-07-13 14:00:33,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:00:33,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:00:33,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:00:33,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:00:33,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:00:30" (1/3) ... [2022-07-13 14:00:33,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c3f2c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:00:33, skipping insertion in model container [2022-07-13 14:00:33,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:00:30" (2/3) ... [2022-07-13 14:00:33,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c3f2c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:00:33, skipping insertion in model container [2022-07-13 14:00:33,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:00:33" (3/3) ... [2022-07-13 14:00:33,196 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_2.i [2022-07-13 14:00:33,219 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:00:33,220 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:00:33,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:00:33,270 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@27f7fa5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2023ffc5 [2022-07-13 14:00:33,270 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:00:33,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:00:33,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 14:00:33,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:00:33,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 14:00:33,285 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:00:33,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:00:33,289 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2022-07-13 14:00:33,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:00:33,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057515193] [2022-07-13 14:00:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:00:33,299 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:00:33,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:00:33,300 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:00:33,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 14:00:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:00:33,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 14:00:33,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:00:33,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:00:33,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:00:33,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:00:33,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057515193] [2022-07-13 14:00:33,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057515193] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:00:33,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:00:33,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:00:33,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776550487] [2022-07-13 14:00:33,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:00:33,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:00:33,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:00:33,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:00:33,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:00:33,857 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:00:33,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:00:33,868 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-07-13 14:00:33,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:00:33,871 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-07-13 14:00:33,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:00:33,877 INFO L225 Difference]: With dead ends: 19 [2022-07-13 14:00:33,877 INFO L226 Difference]: Without dead ends: 7 [2022-07-13 14:00:33,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:00:33,887 INFO L413 NwaCegarLoop]: 10 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, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:00:33,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:00:33,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-07-13 14:00:33,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-07-13 14:00:33,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:00:33,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2022-07-13 14:00:33,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2022-07-13 14:00:33,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:00:33,912 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2022-07-13 14:00:33,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:00:33,912 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2022-07-13 14:00:33,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 14:00:33,913 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:00:33,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 14:00:33,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-13 14:00:34,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:00:34,126 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:00:34,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:00:34,127 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2022-07-13 14:00:34,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:00:34,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225649424] [2022-07-13 14:00:34,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:00:34,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:00:34,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:00:34,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:00:34,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 14:02:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:02:38,750 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.