./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/sine_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF --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 0c9697f45cc32d075257857f43d72c99135dfd2f2be073758d08f7fd72ff6fcb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:16:46,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:16:46,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:16:46,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:16:46,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:16:46,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:16:46,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:16:46,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:16:46,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:16:46,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:16:46,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:16:46,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:16:46,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:16:46,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:16:46,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:16:46,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:16:46,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:16:46,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:16:46,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:16:46,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:16:46,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:16:46,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:16:46,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:16:46,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:16:46,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:16:46,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:16:46,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:16:46,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:16:46,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:16:46,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:16:46,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:16:46,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:16:46,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:16:46,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:16:46,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:16:46,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:16:46,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:16:46,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:16:46,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:16:46,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:16:46,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:16:46,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:16:46,236 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:16:46,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:16:46,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:16:46,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:16:46,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:16:46,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:16:46,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:16:46,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:16:46,247 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:16:46,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:16:46,249 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:16:46,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:16:46,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:16:46,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:16:46,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:16:46,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:16:46,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:16:46,250 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:16:46,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:16:46,251 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:16:46,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:16:46,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:16:46,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:16:46,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:16:46,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:16:46,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:16:46,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:16:46,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:16:46,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:16:46,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:16:46,255 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:16:46,255 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:16:46,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:16:46,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:16:46,256 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c9697f45cc32d075257857f43d72c99135dfd2f2be073758d08f7fd72ff6fcb [2021-11-20 07:16:46,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:16:46,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:16:46,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:16:46,573 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:16:46,575 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:16:46,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/floats-cdfpl/sine_4.i [2021-11-20 07:16:46,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/data/034754583/d0c0b50059d04c5b9ee685e51c85d890/FLAG1377a96c3 [2021-11-20 07:16:47,047 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:16:47,047 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/sv-benchmarks/c/floats-cdfpl/sine_4.i [2021-11-20 07:16:47,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/data/034754583/d0c0b50059d04c5b9ee685e51c85d890/FLAG1377a96c3 [2021-11-20 07:16:47,445 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/data/034754583/d0c0b50059d04c5b9ee685e51c85d890 [2021-11-20 07:16:47,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:16:47,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:16:47,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:16:47,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:16:47,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:16:47,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:16:47" (1/1) ... [2021-11-20 07:16:47,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d587c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:47, skipping insertion in model container [2021-11-20 07:16:47,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:16:47" (1/1) ... [2021-11-20 07:16:47,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:16:47,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:16:47,716 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/sv-benchmarks/c/floats-cdfpl/sine_4.i[1643,1656] [2021-11-20 07:16:47,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:16:47,729 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:16:47,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/sv-benchmarks/c/floats-cdfpl/sine_4.i[1643,1656] [2021-11-20 07:16:47,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:16:47,759 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:16:47,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:47 WrapperNode [2021-11-20 07:16:47,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:16:47,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:16:47,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:16:47,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:16:47,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:47" (1/1) ... [2021-11-20 07:16:47,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:47" (1/1) ... [2021-11-20 07:16:47,792 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2021-11-20 07:16:47,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:16:47,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:16:47,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:16:47,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:16:47,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:47" (1/1) ... [2021-11-20 07:16:47,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:47" (1/1) ... [2021-11-20 07:16:47,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:47" (1/1) ... [2021-11-20 07:16:47,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:47" (1/1) ... [2021-11-20 07:16:47,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:47" (1/1) ... [2021-11-20 07:16:47,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:47" (1/1) ... [2021-11-20 07:16:47,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:47" (1/1) ... [2021-11-20 07:16:47,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:16:47,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:16:47,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:16:47,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:16:47,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:47" (1/1) ... [2021-11-20 07:16:47,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:16:47,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:16:47,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:16:47,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:16:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:16:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:16:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:16:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:16:47,980 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:16:47,982 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:16:48,068 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:16:48,074 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:16:48,074 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:16:48,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:16:48 BoogieIcfgContainer [2021-11-20 07:16:48,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:16:48,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:16:48,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:16:48,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:16:48,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:16:47" (1/3) ... [2021-11-20 07:16:48,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f220ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:16:48, skipping insertion in model container [2021-11-20 07:16:48,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:47" (2/3) ... [2021-11-20 07:16:48,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f220ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:16:48, skipping insertion in model container [2021-11-20 07:16:48,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:16:48" (3/3) ... [2021-11-20 07:16:48,084 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_4.i [2021-11-20 07:16:48,090 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:16:48,090 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:16:48,139 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:16:48,144 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 [2021-11-20 07:16:48,145 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:16:48,155 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) [2021-11-20 07:16:48,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 07:16:48,160 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:16:48,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:16:48,162 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:16:48,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:48,166 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-11-20 07:16:48,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:16:48,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262890258] [2021-11-20 07:16:48,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:48,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:16:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:48,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:16:48,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:16:48,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262890258] [2021-11-20 07:16:48,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262890258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:16:48,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:16:48,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:16:48,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551534868] [2021-11-20 07:16:48,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:16:48,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:16:48,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:16:48,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:16:48,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:16:48,401 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) [2021-11-20 07:16:48,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:16:48,421 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-11-20 07:16:48,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:16:48,425 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 [2021-11-20 07:16:48,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:16:48,441 INFO L225 Difference]: With dead ends: 19 [2021-11-20 07:16:48,441 INFO L226 Difference]: Without dead ends: 7 [2021-11-20 07:16:48,444 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 [2021-11-20 07:16:48,450 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 [2021-11-20 07:16:48,451 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] [2021-11-20 07:16:48,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-11-20 07:16:48,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-11-20 07:16:48,484 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) [2021-11-20 07:16:48,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-11-20 07:16:48,486 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-11-20 07:16:48,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:16:48,487 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-11-20 07:16:48,487 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) [2021-11-20 07:16:48,487 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-11-20 07:16:48,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 07:16:48,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:16:48,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:16:48,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:16:48,490 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:16:48,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:48,495 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-11-20 07:16:48,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:16:48,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623562462] [2021-11-20 07:16:48,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:48,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:16:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:16:48,530 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:16:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:16:48,565 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:16:48,566 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:16:48,568 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:16:48,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:16:48,574 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 07:16:48,577 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:16:48,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:16:48 BoogieIcfgContainer [2021-11-20 07:16:48,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:16:48,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:16:48,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:16:48,608 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:16:48,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:16:48" (3/4) ... [2021-11-20 07:16:48,612 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:16:48,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:16:48,614 INFO L158 Benchmark]: Toolchain (without parser) took 1164.88ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 66.1MB in the beginning and 91.6MB in the end (delta: -25.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:16:48,615 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory was 51.6MB in the beginning and 51.5MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:16:48,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.36ms. Allocated memory is still 98.6MB. Free memory was 65.9MB in the beginning and 74.5MB in the end (delta: -8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:16:48,619 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.30ms. Allocated memory is still 98.6MB. Free memory was 74.5MB in the beginning and 73.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:16:48,620 INFO L158 Benchmark]: Boogie Preprocessor took 28.88ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 72.2MB in the end (delta: 925.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:16:48,623 INFO L158 Benchmark]: RCFGBuilder took 252.71ms. Allocated memory is still 98.6MB. Free memory was 72.2MB in the beginning and 63.7MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:16:48,624 INFO L158 Benchmark]: TraceAbstraction took 528.82ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 63.2MB in the beginning and 92.1MB in the end (delta: -28.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:16:48,624 INFO L158 Benchmark]: Witness Printer took 5.66ms. Allocated memory is still 119.5MB. Free memory was 92.1MB in the beginning and 91.6MB in the end (delta: 592.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:16:48,632 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory was 51.6MB in the beginning and 51.5MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.36ms. Allocated memory is still 98.6MB. Free memory was 65.9MB in the beginning and 74.5MB in the end (delta: -8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.30ms. Allocated memory is still 98.6MB. Free memory was 74.5MB in the beginning and 73.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.88ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 72.2MB in the end (delta: 925.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 252.71ms. Allocated memory is still 98.6MB. Free memory was 72.2MB in the beginning and 63.7MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 528.82ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 63.2MB in the beginning and 92.1MB in the end (delta: -28.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.66ms. Allocated memory is still 119.5MB. Free memory was 92.1MB in the beginning and 91.6MB in the end (delta: 592.1kB). 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 <= 1.01f && result >= -1.01f) 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: 0.4s, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s 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 [2021-11-20 07:16:48,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/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=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF --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 0c9697f45cc32d075257857f43d72c99135dfd2f2be073758d08f7fd72ff6fcb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:16:51,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:16:51,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:16:51,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:16:51,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:16:51,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:16:51,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:16:51,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:16:51,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:16:51,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:16:51,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:16:51,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:16:51,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:16:51,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:16:51,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:16:51,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:16:51,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:16:51,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:16:51,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:16:51,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:16:51,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:16:51,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:16:51,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:16:51,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:16:51,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:16:51,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:16:51,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:16:51,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:16:51,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:16:51,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:16:51,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:16:51,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:16:51,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:16:51,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:16:51,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:16:51,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:16:51,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:16:51,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:16:51,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:16:51,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:16:51,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:16:51,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 07:16:51,363 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:16:51,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:16:51,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:16:51,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:16:51,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:16:51,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:16:51,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:16:51,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:16:51,367 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:16:51,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:16:51,368 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:16:51,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:16:51,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:16:51,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:16:51,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:16:51,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:16:51,370 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 07:16:51,370 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 07:16:51,371 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 07:16:51,371 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:16:51,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:16:51,371 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:16:51,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:16:51,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:16:51,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:16:51,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:16:51,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:16:51,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:16:51,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:16:51,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:16:51,374 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 07:16:51,374 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 07:16:51,375 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:16:51,375 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:16:51,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:16:51,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:16:51,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 07:16:51,376 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c9697f45cc32d075257857f43d72c99135dfd2f2be073758d08f7fd72ff6fcb [2021-11-20 07:16:51,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:16:51,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:16:51,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:16:51,824 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:16:51,825 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:16:51,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/floats-cdfpl/sine_4.i [2021-11-20 07:16:51,901 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/data/11f776d6b/423cbf78f0d54cc685f25902879dcfa9/FLAG938d6a915 [2021-11-20 07:16:52,467 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:16:52,468 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/sv-benchmarks/c/floats-cdfpl/sine_4.i [2021-11-20 07:16:52,475 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/data/11f776d6b/423cbf78f0d54cc685f25902879dcfa9/FLAG938d6a915 [2021-11-20 07:16:52,811 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/data/11f776d6b/423cbf78f0d54cc685f25902879dcfa9 [2021-11-20 07:16:52,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:16:52,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:16:52,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:16:52,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:16:52,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:16:52,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:16:52" (1/1) ... [2021-11-20 07:16:52,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@457bd0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:52, skipping insertion in model container [2021-11-20 07:16:52,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:16:52" (1/1) ... [2021-11-20 07:16:52,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:16:52,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:16:53,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/sv-benchmarks/c/floats-cdfpl/sine_4.i[1643,1656] [2021-11-20 07:16:53,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:16:53,074 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:16:53,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/sv-benchmarks/c/floats-cdfpl/sine_4.i[1643,1656] [2021-11-20 07:16:53,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:16:53,129 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:16:53,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:53 WrapperNode [2021-11-20 07:16:53,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:16:53,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:16:53,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:16:53,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:16:53,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:53" (1/1) ... [2021-11-20 07:16:53,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:53" (1/1) ... [2021-11-20 07:16:53,191 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2021-11-20 07:16:53,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:16:53,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:16:53,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:16:53,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:16:53,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:53" (1/1) ... [2021-11-20 07:16:53,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:53" (1/1) ... [2021-11-20 07:16:53,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:53" (1/1) ... [2021-11-20 07:16:53,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:53" (1/1) ... [2021-11-20 07:16:53,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:53" (1/1) ... [2021-11-20 07:16:53,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:53" (1/1) ... [2021-11-20 07:16:53,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:53" (1/1) ... [2021-11-20 07:16:53,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:16:53,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:16:53,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:16:53,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:16:53,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:53" (1/1) ... [2021-11-20 07:16:53,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:16:53,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:16:53,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:16:53,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:16:53,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:16:53,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 07:16:53,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:16:53,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:16:53,395 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:16:53,397 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:16:55,725 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:16:55,730 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:16:55,730 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:16:55,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:16:55 BoogieIcfgContainer [2021-11-20 07:16:55,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:16:55,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:16:55,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:16:55,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:16:55,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:16:52" (1/3) ... [2021-11-20 07:16:55,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdf1a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:16:55, skipping insertion in model container [2021-11-20 07:16:55,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:53" (2/3) ... [2021-11-20 07:16:55,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdf1a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:16:55, skipping insertion in model container [2021-11-20 07:16:55,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:16:55" (3/3) ... [2021-11-20 07:16:55,740 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_4.i [2021-11-20 07:16:55,745 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:16:55,746 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:16:55,804 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:16:55,811 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 [2021-11-20 07:16:55,811 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:16:55,824 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) [2021-11-20 07:16:55,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 07:16:55,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:16:55,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:16:55,830 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:16:55,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:55,836 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-11-20 07:16:55,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:16:55,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266080716] [2021-11-20 07:16:55,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:55,851 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:16:55,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:16:55,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:16:55,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 07:16:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:56,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 07:16:56,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:16:56,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:16:56,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:16:56,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:16:56,532 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:16:56,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266080716] [2021-11-20 07:16:56,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266080716] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:16:56,533 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:16:56,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 07:16:56,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83567429] [2021-11-20 07:16:56,536 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:16:56,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:16:56,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:16:56,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:16:56,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:16:56,586 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) [2021-11-20 07:16:56,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:16:56,599 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-11-20 07:16:56,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:16:56,602 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 [2021-11-20 07:16:56,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:16:56,609 INFO L225 Difference]: With dead ends: 19 [2021-11-20 07:16:56,610 INFO L226 Difference]: Without dead ends: 7 [2021-11-20 07:16:56,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:16:56,617 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 [2021-11-20 07:16:56,618 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] [2021-11-20 07:16:56,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-11-20 07:16:56,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-11-20 07:16:56,644 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) [2021-11-20 07:16:56,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-11-20 07:16:56,646 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-11-20 07:16:56,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:16:56,646 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-11-20 07:16:56,647 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) [2021-11-20 07:16:56,647 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-11-20 07:16:56,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 07:16:56,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:16:56,647 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:16:56,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:16:56,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:16:56,869 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:16:56,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:56,874 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-11-20 07:16:56,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:16:56,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873278639] [2021-11-20 07:16:56,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:56,879 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:16:56,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:16:56,881 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:16:56,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f20f601-bf5e-4190-b9c3-ee21534ce520/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process