./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/sine_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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_6.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 818942128c6a15645066b8ea2703e348fd2c27fa44366451cf9bcbae59b8c67f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:44:54,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:44:54,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:44:54,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:44:54,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:44:54,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:44:54,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:44:54,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:44:54,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:44:54,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:44:54,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:44:54,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:44:54,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:44:54,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:44:54,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:44:54,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:44:54,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:44:54,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:44:54,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:44:54,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:44:54,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:44:54,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:44:54,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:44:54,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:44:54,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:44:54,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:44:54,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:44:54,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:44:54,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:44:54,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:44:54,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:44:54,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:44:54,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:44:54,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:44:54,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:44:54,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:44:54,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:44:54,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:44:54,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:44:54,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:44:54,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:44:54,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 11:44:54,168 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:44:54,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:44:54,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:44:54,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:44:54,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:44:54,170 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:44:54,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:44:54,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:44:54,171 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:44:54,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:44:54,172 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:44:54,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 11:44:54,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:44:54,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:44:54,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:44:54,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:44:54,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:44:54,173 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:44:54,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:44:54,173 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:44:54,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:44:54,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:44:54,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:44:54,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:44:54,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:44:54,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:44:54,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:44:54,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:44:54,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 11:44:54,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 11:44:54,176 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:44:54,176 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:44:54,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:44:54,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:44:54,176 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 818942128c6a15645066b8ea2703e348fd2c27fa44366451cf9bcbae59b8c67f [2021-12-21 11:44:54,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:44:54,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:44:54,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:44:54,382 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:44:54,382 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:44:54,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_6.i [2021-12-21 11:44:54,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f25db265/8c906efc2d3541beb0b7e150c32a25c6/FLAG131ebf33c [2021-12-21 11:44:54,779 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:44:54,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_6.i [2021-12-21 11:44:54,784 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f25db265/8c906efc2d3541beb0b7e150c32a25c6/FLAG131ebf33c [2021-12-21 11:44:54,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f25db265/8c906efc2d3541beb0b7e150c32a25c6 [2021-12-21 11:44:54,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:44:54,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:44:54,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:44:54,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:44:54,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:44:54,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:44:54" (1/1) ... [2021-12-21 11:44:54,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720a4af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:54, skipping insertion in model container [2021-12-21 11:44:54,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:44:54" (1/1) ... [2021-12-21 11:44:54,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:44:54,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:44:54,962 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_6.i[1641,1654] [2021-12-21 11:44:54,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:44:54,969 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:44:54,980 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_6.i[1641,1654] [2021-12-21 11:44:54,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:44:54,989 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:44:54,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:54 WrapperNode [2021-12-21 11:44:54,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:44:54,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:44:54,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:44:54,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:44:54,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:54" (1/1) ... [2021-12-21 11:44:55,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:54" (1/1) ... [2021-12-21 11:44:55,012 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2021-12-21 11:44:55,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:44:55,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:44:55,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:44:55,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:44:55,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:54" (1/1) ... [2021-12-21 11:44:55,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:54" (1/1) ... [2021-12-21 11:44:55,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:54" (1/1) ... [2021-12-21 11:44:55,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:54" (1/1) ... [2021-12-21 11:44:55,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:54" (1/1) ... [2021-12-21 11:44:55,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:54" (1/1) ... [2021-12-21 11:44:55,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:54" (1/1) ... [2021-12-21 11:44:55,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:44:55,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:44:55,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:44:55,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:44:55,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:54" (1/1) ... [2021-12-21 11:44:55,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:44:55,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:44:55,069 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) [2021-12-21 11:44:55,071 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 [2021-12-21 11:44:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:44:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 11:44:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:44:55,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:44:55,156 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:44:55,157 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:44:55,247 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:44:55,252 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:44:55,253 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 11:44:55,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:44:55 BoogieIcfgContainer [2021-12-21 11:44:55,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:44:55,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:44:55,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:44:55,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:44:55,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:44:54" (1/3) ... [2021-12-21 11:44:55,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c559a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:44:55, skipping insertion in model container [2021-12-21 11:44:55,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:54" (2/3) ... [2021-12-21 11:44:55,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c559a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:44:55, skipping insertion in model container [2021-12-21 11:44:55,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:44:55" (3/3) ... [2021-12-21 11:44:55,261 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_6.i [2021-12-21 11:44:55,265 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:44:55,265 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:44:55,312 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:44:55,318 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 [2021-12-21 11:44:55,318 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:44:55,329 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) [2021-12-21 11:44:55,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 11:44:55,341 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:44:55,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 11:44:55,342 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:44:55,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:44:55,347 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-12-21 11:44:55,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:44:55,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727873412] [2021-12-21 11:44:55,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:44:55,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:44:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:44:55,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:44:55,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:44:55,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727873412] [2021-12-21 11:44:55,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727873412] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:44:55,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:44:55,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:44:55,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501632899] [2021-12-21 11:44:55,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:44:55,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:44:55,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:44:55,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:44:55,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:44:55,503 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) [2021-12-21 11:44:55,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:44:55,513 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-12-21 11:44:55,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:44:55,515 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 [2021-12-21 11:44:55,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:44:55,521 INFO L225 Difference]: With dead ends: 19 [2021-12-21 11:44:55,521 INFO L226 Difference]: Without dead ends: 7 [2021-12-21 11:44:55,524 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 [2021-12-21 11:44:55,528 INFO L933 BasicCegarLoop]: 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 [2021-12-21 11:44:55,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:44:55,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-12-21 11:44:55,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-12-21 11:44:55,548 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) [2021-12-21 11:44:55,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-12-21 11:44:55,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-12-21 11:44:55,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:44:55,550 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-12-21 11:44:55,550 INFO L471 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) [2021-12-21 11:44:55,551 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-12-21 11:44:55,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 11:44:55,551 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:44:55,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 11:44:55,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 11:44:55,552 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:44:55,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:44:55,553 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-12-21 11:44:55,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:44:55,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219922690] [2021-12-21 11:44:55,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:44:55,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:44:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:44:55,566 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 11:44:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:44:55,585 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 11:44:55,588 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 11:44:55,591 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 11:44:55,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 11:44:55,600 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-21 11:44:55,603 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 11:44:55,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:44:55 BoogieIcfgContainer [2021-12-21 11:44:55,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 11:44:55,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 11:44:55,631 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 11:44:55,631 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 11:44:55,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:44:55" (3/4) ... [2021-12-21 11:44:55,633 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 11:44:55,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 11:44:55,635 INFO L158 Benchmark]: Toolchain (without parser) took 840.09ms. Allocated memory was 102.8MB in the beginning and 157.3MB in the end (delta: 54.5MB). Free memory was 73.7MB in the beginning and 98.4MB in the end (delta: -24.7MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2021-12-21 11:44:55,635 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory is still 59.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:44:55,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.08ms. Allocated memory was 102.8MB in the beginning and 157.3MB in the end (delta: 54.5MB). Free memory was 73.3MB in the beginning and 132.6MB in the end (delta: -59.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 11:44:55,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.86ms. Allocated memory is still 157.3MB. Free memory was 132.6MB in the beginning and 131.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:44:55,641 INFO L158 Benchmark]: Boogie Preprocessor took 11.57ms. Allocated memory is still 157.3MB. Free memory was 131.4MB in the beginning and 130.6MB in the end (delta: 785.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:44:55,641 INFO L158 Benchmark]: RCFGBuilder took 228.70ms. Allocated memory is still 157.3MB. Free memory was 130.6MB in the beginning and 120.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 11:44:55,642 INFO L158 Benchmark]: TraceAbstraction took 374.70ms. Allocated memory is still 157.3MB. Free memory was 120.9MB in the beginning and 99.1MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-21 11:44:55,642 INFO L158 Benchmark]: Witness Printer took 3.45ms. Allocated memory is still 157.3MB. Free memory was 99.1MB in the beginning and 98.4MB in the end (delta: 754.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:44:55,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory is still 59.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.08ms. Allocated memory was 102.8MB in the beginning and 157.3MB in the end (delta: 54.5MB). Free memory was 73.3MB in the beginning and 132.6MB in the end (delta: -59.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.86ms. Allocated memory is still 157.3MB. Free memory was 132.6MB in the beginning and 131.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.57ms. Allocated memory is still 157.3MB. Free memory was 131.4MB in the beginning and 130.6MB in the end (delta: 785.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 228.70ms. Allocated memory is still 157.3MB. Free memory was 130.6MB in the beginning and 120.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 374.70ms. Allocated memory is still 157.3MB. Free memory was 120.9MB in the beginning and 99.1MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 3.45ms. Allocated memory is still 157.3MB. Free memory was 99.1MB in the beginning and 98.4MB in the end (delta: 754.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 <= 1.2f && result >= -1.2f) 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, PartialOrderReductionTime: 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 [2021-12-21 11:44:55,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/sine_6.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 818942128c6a15645066b8ea2703e348fd2c27fa44366451cf9bcbae59b8c67f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:44:57,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:44:57,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:44:57,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:44:57,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:44:57,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:44:57,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:44:57,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:44:57,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:44:57,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:44:57,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:44:57,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:44:57,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:44:57,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:44:57,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:44:57,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:44:57,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:44:57,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:44:57,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:44:57,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:44:57,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:44:57,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:44:57,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:44:57,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:44:57,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:44:57,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:44:57,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:44:57,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:44:57,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:44:57,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:44:57,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:44:57,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:44:57,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:44:57,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:44:57,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:44:57,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:44:57,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:44:57,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:44:57,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:44:57,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:44:57,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:44:57,512 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 11:44:57,540 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:44:57,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:44:57,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:44:57,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:44:57,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:44:57,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:44:57,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:44:57,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:44:57,544 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:44:57,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:44:57,545 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:44:57,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:44:57,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:44:57,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:44:57,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:44:57,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:44:57,545 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 11:44:57,546 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 11:44:57,546 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 11:44:57,546 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:44:57,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:44:57,546 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:44:57,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:44:57,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:44:57,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:44:57,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:44:57,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:44:57,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:44:57,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:44:57,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:44:57,547 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 11:44:57,548 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 11:44:57,548 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:44:57,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:44:57,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:44:57,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:44:57,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 11:44:57,549 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 818942128c6a15645066b8ea2703e348fd2c27fa44366451cf9bcbae59b8c67f [2021-12-21 11:44:57,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:44:57,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:44:57,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:44:57,907 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:44:57,909 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:44:57,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_6.i [2021-12-21 11:44:57,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74829c12d/0919247dc198477bb605f138617c4c48/FLAG4b349bea0 [2021-12-21 11:44:58,329 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:44:58,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_6.i [2021-12-21 11:44:58,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74829c12d/0919247dc198477bb605f138617c4c48/FLAG4b349bea0 [2021-12-21 11:44:58,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74829c12d/0919247dc198477bb605f138617c4c48 [2021-12-21 11:44:58,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:44:58,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:44:58,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:44:58,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:44:58,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:44:58,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:44:58" (1/1) ... [2021-12-21 11:44:58,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e7b174c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:58, skipping insertion in model container [2021-12-21 11:44:58,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:44:58" (1/1) ... [2021-12-21 11:44:58,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:44:58,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:44:58,856 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_6.i[1641,1654] [2021-12-21 11:44:58,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:44:58,867 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:44:58,879 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_6.i[1641,1654] [2021-12-21 11:44:58,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:44:58,935 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:44:58,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:58 WrapperNode [2021-12-21 11:44:58,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:44:58,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:44:58,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:44:58,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:44:58,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:58" (1/1) ... [2021-12-21 11:44:58,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:58" (1/1) ... [2021-12-21 11:44:58,967 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2021-12-21 11:44:58,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:44:58,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:44:58,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:44:58,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:44:58,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:58" (1/1) ... [2021-12-21 11:44:58,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:58" (1/1) ... [2021-12-21 11:44:58,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:58" (1/1) ... [2021-12-21 11:44:58,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:58" (1/1) ... [2021-12-21 11:44:58,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:58" (1/1) ... [2021-12-21 11:44:59,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:58" (1/1) ... [2021-12-21 11:44:59,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:58" (1/1) ... [2021-12-21 11:44:59,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:44:59,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:44:59,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:44:59,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:44:59,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:58" (1/1) ... [2021-12-21 11:44:59,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:44:59,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:44:59,073 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) [2021-12-21 11:44:59,124 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 [2021-12-21 11:44:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:44:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 11:44:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:44:59,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:44:59,210 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:44:59,224 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:45:01,578 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:45:01,582 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:45:01,582 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 11:45:01,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:45:01 BoogieIcfgContainer [2021-12-21 11:45:01,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:45:01,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:45:01,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:45:01,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:45:01,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:44:58" (1/3) ... [2021-12-21 11:45:01,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3899ed2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:45:01, skipping insertion in model container [2021-12-21 11:45:01,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:44:58" (2/3) ... [2021-12-21 11:45:01,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3899ed2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:45:01, skipping insertion in model container [2021-12-21 11:45:01,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:45:01" (3/3) ... [2021-12-21 11:45:01,601 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_6.i [2021-12-21 11:45:01,604 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:45:01,617 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:45:01,657 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:45:01,666 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 [2021-12-21 11:45:01,667 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:45:01,675 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) [2021-12-21 11:45:01,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 11:45:01,692 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:45:01,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 11:45:01,693 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:45:01,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:45:01,697 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-12-21 11:45:01,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:45:01,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172254052] [2021-12-21 11:45:01,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:45:01,704 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:45:01,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:45:01,706 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) [2021-12-21 11:45:01,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-21 11:45:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:45:02,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-21 11:45:02,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:45:02,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:45:02,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:45:02,151 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:45:02,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172254052] [2021-12-21 11:45:02,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172254052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:45:02,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:45:02,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:45:02,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366271366] [2021-12-21 11:45:02,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:45:02,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:45:02,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:45:02,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:45:02,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:45:02,186 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) [2021-12-21 11:45:02,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:45:02,196 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-12-21 11:45:02,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:45:02,198 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 [2021-12-21 11:45:02,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:45:02,202 INFO L225 Difference]: With dead ends: 19 [2021-12-21 11:45:02,202 INFO L226 Difference]: Without dead ends: 7 [2021-12-21 11:45:02,205 INFO L932 BasicCegarLoop]: 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 [2021-12-21 11:45:02,207 INFO L933 BasicCegarLoop]: 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 [2021-12-21 11:45:02,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:45:02,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-12-21 11:45:02,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-12-21 11:45:02,226 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) [2021-12-21 11:45:02,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-12-21 11:45:02,227 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-12-21 11:45:02,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:45:02,228 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-12-21 11:45:02,228 INFO L471 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) [2021-12-21 11:45:02,228 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-12-21 11:45:02,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 11:45:02,228 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:45:02,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 11:45:02,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-21 11:45:02,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:45:02,446 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:45:02,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:45:02,447 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-12-21 11:45:02,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:45:02,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986981776] [2021-12-21 11:45:02,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:45:02,466 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:45:02,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:45:02,467 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) [2021-12-21 11:45:02,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process