./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G --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 9489431ca2adb8b900cb4d01b5f65fcc773628acd92e39026c8afa0b8e7448c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:08:52,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:08:52,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:08:52,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:08:52,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:08:52,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:08:52,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:08:52,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:08:52,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:08:52,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:08:52,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:08:52,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:08:52,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:08:52,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:08:52,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:08:52,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:08:52,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:08:52,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:08:52,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:08:52,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:08:52,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:08:52,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:08:52,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:08:52,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:08:52,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:08:52,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:08:52,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:08:52,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:08:52,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:08:52,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:08:52,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:08:52,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:08:52,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:08:52,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:08:52,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:08:52,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:08:52,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:08:52,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:08:52,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:08:52,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:08:52,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:08:52,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:08:52,271 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:08:52,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:08:52,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:08:52,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:08:52,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:08:52,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:08:52,279 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:08:52,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:08:52,279 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:08:52,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:08:52,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:08:52,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:08:52,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:08:52,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:08:52,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:08:52,282 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:08:52,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:08:52,282 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:08:52,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:08:52,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:08:52,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:08:52,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:08:52,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:08:52,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:08:52,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:08:52,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:08:52,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:08:52,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:08:52,285 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:08:52,286 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:08:52,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:08:52,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:08:52,287 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_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9489431ca2adb8b900cb4d01b5f65fcc773628acd92e39026c8afa0b8e7448c0 [2021-11-23 13:08:52,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:08:52,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:08:52,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:08:52,610 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:08:52,611 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:08:52,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-11-23 13:08:52,672 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/data/c6dfffcc5/2a74fcda8e154572b12a97b58664044d/FLAGeebf4f28e [2021-11-23 13:08:53,138 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:08:53,139 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-11-23 13:08:53,147 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/data/c6dfffcc5/2a74fcda8e154572b12a97b58664044d/FLAGeebf4f28e [2021-11-23 13:08:53,511 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/data/c6dfffcc5/2a74fcda8e154572b12a97b58664044d [2021-11-23 13:08:53,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:08:53,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:08:53,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:08:53,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:08:53,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:08:53,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:53" (1/1) ... [2021-11-23 13:08:53,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b24b89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:53, skipping insertion in model container [2021-11-23 13:08:53,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:53" (1/1) ... [2021-11-23 13:08:53,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:08:53,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:08:53,790 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_f40b1ba2-a224-449c-9189-570d9efe63bf/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-11-23 13:08:53,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:08:53,801 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:08:53,864 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_f40b1ba2-a224-449c-9189-570d9efe63bf/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-11-23 13:08:53,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:08:53,898 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:08:53,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:53 WrapperNode [2021-11-23 13:08:53,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:08:53,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:08:53,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:08:53,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:08:53,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:53" (1/1) ... [2021-11-23 13:08:53,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:53" (1/1) ... [2021-11-23 13:08:53,983 INFO L137 Inliner]: procedures = 19, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 257 [2021-11-23 13:08:53,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:08:53,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:08:53,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:08:53,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:08:53,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:53" (1/1) ... [2021-11-23 13:08:53,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:53" (1/1) ... [2021-11-23 13:08:54,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:53" (1/1) ... [2021-11-23 13:08:54,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:53" (1/1) ... [2021-11-23 13:08:54,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:53" (1/1) ... [2021-11-23 13:08:54,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:53" (1/1) ... [2021-11-23 13:08:54,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:53" (1/1) ... [2021-11-23 13:08:54,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:08:54,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:08:54,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:08:54,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:08:54,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:53" (1/1) ... [2021-11-23 13:08:54,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:08:54,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:08:54,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:08:54,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:08:54,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:08:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:08:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:08:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 13:08:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:08:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 13:08:54,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:08:54,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:08:54,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:08:54,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:08:54,227 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:08:54,229 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:08:54,531 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:08:54,538 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:08:54,538 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-23 13:08:54,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:54 BoogieIcfgContainer [2021-11-23 13:08:54,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:08:54,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:08:54,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:08:54,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:08:54,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:08:53" (1/3) ... [2021-11-23 13:08:54,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323c8aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:08:54, skipping insertion in model container [2021-11-23 13:08:54,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:53" (2/3) ... [2021-11-23 13:08:54,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323c8aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:08:54, skipping insertion in model container [2021-11-23 13:08:54,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:54" (3/3) ... [2021-11-23 13:08:54,555 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2021-11-23 13:08:54,561 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:08:54,561 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:08:54,611 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:08:54,618 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 [2021-11-23 13:08:54,619 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 13:08:54,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 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) [2021-11-23 13:08:54,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 13:08:54,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:54,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:54,643 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:08:54,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:54,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2021-11-23 13:08:54,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:08:54,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748070722] [2021-11-23 13:08:54,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:54,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:08:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:54,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:54,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:08:54,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748070722] [2021-11-23 13:08:54,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748070722] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:08:54,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:08:54,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:08:54,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568974228] [2021-11-23 13:08:54,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:08:54,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:08:54,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:08:54,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:08:54,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:08:54,835 INFO L87 Difference]: Start difference. First operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-23 13:08:54,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:54,859 INFO L93 Difference]: Finished difference Result 118 states and 192 transitions. [2021-11-23 13:08:54,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:08:54,861 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-11-23 13:08:54,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:54,887 INFO L225 Difference]: With dead ends: 118 [2021-11-23 13:08:54,888 INFO L226 Difference]: Without dead ends: 57 [2021-11-23 13:08:54,891 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 [2021-11-23 13:08:54,895 INFO L933 BasicCegarLoop]: 78 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, 78 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 [2021-11-23 13:08:54,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:08:54,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-23 13:08:54,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-23 13:08:54,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 56 states have internal predecessors, (75), 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) [2021-11-23 13:08:54,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2021-11-23 13:08:54,946 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2021-11-23 13:08:54,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:54,947 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2021-11-23 13:08:54,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-23 13:08:54,947 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2021-11-23 13:08:54,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 13:08:54,948 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:54,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:54,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:08:54,949 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:08:54,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:54,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2021-11-23 13:08:54,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:08:54,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449595863] [2021-11-23 13:08:54,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:54,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:08:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:08:54,991 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:08:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:08:55,042 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:08:55,043 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 13:08:55,045 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 13:08:55,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:08:55,051 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 13:08:55,054 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:08:55,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:08:55 BoogieIcfgContainer [2021-11-23 13:08:55,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:08:55,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:08:55,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:08:55,087 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:08:55,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:54" (3/4) ... [2021-11-23 13:08:55,091 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 13:08:55,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:08:55,092 INFO L158 Benchmark]: Toolchain (without parser) took 1576.48ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 56.7MB in the beginning and 85.2MB in the end (delta: -28.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:08:55,093 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 73.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:08:55,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.19ms. Allocated memory is still 98.6MB. Free memory was 56.5MB in the beginning and 69.1MB in the end (delta: -12.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 13:08:55,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.43ms. Allocated memory is still 98.6MB. Free memory was 69.1MB in the beginning and 67.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:08:55,095 INFO L158 Benchmark]: Boogie Preprocessor took 71.60ms. Allocated memory is still 98.6MB. Free memory was 67.0MB in the beginning and 64.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:08:55,096 INFO L158 Benchmark]: RCFGBuilder took 482.28ms. Allocated memory is still 98.6MB. Free memory was 64.9MB in the beginning and 47.7MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 13:08:55,096 INFO L158 Benchmark]: TraceAbstraction took 544.00ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 47.3MB in the beginning and 85.7MB in the end (delta: -38.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:08:55,097 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 119.5MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:08:55,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 73.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.19ms. Allocated memory is still 98.6MB. Free memory was 56.5MB in the beginning and 69.1MB in the end (delta: -12.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.43ms. Allocated memory is still 98.6MB. Free memory was 69.1MB in the beginning and 67.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.60ms. Allocated memory is still 98.6MB. Free memory was 67.0MB in the beginning and 64.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 482.28ms. Allocated memory is still 98.6MB. Free memory was 64.9MB in the beginning and 47.7MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 544.00ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 47.3MB in the beginning and 85.7MB in the end (delta: -38.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.53ms. Allocated memory is still 119.5MB. Free memory is still 85.2MB. 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: 200]: 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 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 195, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L195] float x = -0.0f; [L196] CALL, EXPR __ieee754_asinf(x) [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [\old(x)=1000000000000000000000000000001, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000001] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000001, huge_asin=1000000000000000000000000000000, hx=0, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000001] [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=1000000000000000000000000000001, huge_asin=1000000000000000000000000000000, hx=0, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000001] [L196] RET, EXPR __ieee754_asinf(x) [L196] float res = __ieee754_asinf(x); [L199] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000002, res == -0.0f && __signbit_float(res) == 1=0, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000001] [L199] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L200] reach_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000002, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000001] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 60 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, 78 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, 78 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=60occurred 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, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2021-11-23 13:08:55,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/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_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G --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 9489431ca2adb8b900cb4d01b5f65fcc773628acd92e39026c8afa0b8e7448c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:08:57,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:08:57,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:08:57,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:08:57,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:08:57,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:08:57,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:08:57,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:08:57,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:08:57,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:08:57,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:08:57,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:08:57,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:08:57,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:08:57,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:08:57,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:08:57,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:08:57,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:08:57,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:08:57,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:08:57,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:08:57,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:08:57,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:08:57,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:08:57,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:08:57,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:08:57,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:08:57,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:08:57,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:08:57,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:08:57,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:08:57,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:08:57,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:08:57,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:08:57,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:08:57,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:08:57,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:08:57,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:08:57,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:08:57,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:08:57,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:08:57,784 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-23 13:08:57,829 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:08:57,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:08:57,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:08:57,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:08:57,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:08:57,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:08:57,834 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:08:57,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:08:57,834 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:08:57,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:08:57,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:08:57,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:08:57,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:08:57,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:08:57,836 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 13:08:57,837 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 13:08:57,837 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 13:08:57,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:08:57,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:08:57,838 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:08:57,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:08:57,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:08:57,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:08:57,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:08:57,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:08:57,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:08:57,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:08:57,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:08:57,840 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-23 13:08:57,840 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 13:08:57,840 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:08:57,841 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:08:57,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:08:57,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:08:57,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 13:08:57,842 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_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9489431ca2adb8b900cb4d01b5f65fcc773628acd92e39026c8afa0b8e7448c0 [2021-11-23 13:08:58,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:08:58,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:08:58,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:08:58,215 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:08:58,216 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:08:58,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-11-23 13:08:58,300 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/data/d2bcee6ff/aa5f1c5e625a4ac5984f93a41f234418/FLAG06ce819b1 [2021-11-23 13:08:58,796 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:08:58,797 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-11-23 13:08:58,805 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/data/d2bcee6ff/aa5f1c5e625a4ac5984f93a41f234418/FLAG06ce819b1 [2021-11-23 13:08:59,161 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/data/d2bcee6ff/aa5f1c5e625a4ac5984f93a41f234418 [2021-11-23 13:08:59,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:08:59,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:08:59,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:08:59,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:08:59,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:08:59,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:59" (1/1) ... [2021-11-23 13:08:59,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c848ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:59, skipping insertion in model container [2021-11-23 13:08:59,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:59" (1/1) ... [2021-11-23 13:08:59,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:08:59,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:08:59,443 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_f40b1ba2-a224-449c-9189-570d9efe63bf/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-11-23 13:08:59,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:08:59,458 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:08:59,565 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_f40b1ba2-a224-449c-9189-570d9efe63bf/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-11-23 13:08:59,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:08:59,583 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:08:59,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:59 WrapperNode [2021-11-23 13:08:59,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:08:59,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:08:59,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:08:59,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:08:59,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:59" (1/1) ... [2021-11-23 13:08:59,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:59" (1/1) ... [2021-11-23 13:08:59,639 INFO L137 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 257 [2021-11-23 13:08:59,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:08:59,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:08:59,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:08:59,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:08:59,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:59" (1/1) ... [2021-11-23 13:08:59,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:59" (1/1) ... [2021-11-23 13:08:59,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:59" (1/1) ... [2021-11-23 13:08:59,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:59" (1/1) ... [2021-11-23 13:08:59,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:59" (1/1) ... [2021-11-23 13:08:59,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:59" (1/1) ... [2021-11-23 13:08:59,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:59" (1/1) ... [2021-11-23 13:08:59,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:08:59,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:08:59,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:08:59,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:08:59,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:59" (1/1) ... [2021-11-23 13:08:59,732 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:08:59,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:08:59,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:08:59,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:08:59,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:08:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 13:08:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:08:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-23 13:08:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 13:08:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:08:59,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:08:59,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-23 13:08:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 13:08:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:08:59,952 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:08:59,953 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:09:11,859 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:09:11,866 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:09:11,867 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-23 13:09:11,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:09:11 BoogieIcfgContainer [2021-11-23 13:09:11,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:09:11,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:09:11,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:09:11,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:09:11,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:08:59" (1/3) ... [2021-11-23 13:09:11,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a564a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:09:11, skipping insertion in model container [2021-11-23 13:09:11,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:59" (2/3) ... [2021-11-23 13:09:11,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a564a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:09:11, skipping insertion in model container [2021-11-23 13:09:11,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:09:11" (3/3) ... [2021-11-23 13:09:11,880 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2021-11-23 13:09:11,887 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:09:11,887 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:09:11,943 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:09:11,951 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 [2021-11-23 13:09:11,951 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 13:09:11,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 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) [2021-11-23 13:09:11,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 13:09:11,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:11,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:11,973 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:09:11,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:11,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2021-11-23 13:09:11,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:09:11,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841693842] [2021-11-23 13:09:11,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:11,993 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:09:11,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:09:11,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:09:12,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 13:09:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:12,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 13:09:12,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:12,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:12,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:12,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:12,933 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:09:12,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841693842] [2021-11-23 13:09:12,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841693842] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:12,935 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:12,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 13:09:12,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505821885] [2021-11-23 13:09:12,937 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:12,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:09:12,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:09:12,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:09:12,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:09:12,994 INFO L87 Difference]: Start difference. First operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-23 13:09:13,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:13,030 INFO L93 Difference]: Finished difference Result 118 states and 192 transitions. [2021-11-23 13:09:13,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:09:13,032 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-11-23 13:09:13,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:13,045 INFO L225 Difference]: With dead ends: 118 [2021-11-23 13:09:13,045 INFO L226 Difference]: Without dead ends: 57 [2021-11-23 13:09:13,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:09:13,054 INFO L933 BasicCegarLoop]: 78 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, 78 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 [2021-11-23 13:09:13,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:09:13,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-23 13:09:13,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-23 13:09:13,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 56 states have internal predecessors, (75), 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) [2021-11-23 13:09:13,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2021-11-23 13:09:13,094 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2021-11-23 13:09:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:13,095 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2021-11-23 13:09:13,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-23 13:09:13,095 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2021-11-23 13:09:13,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 13:09:13,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:13,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:13,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:13,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:09:13,309 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:09:13,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:13,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2021-11-23 13:09:13,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:09:13,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784622055] [2021-11-23 13:09:13,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:13,312 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:09:13,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:09:13,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:09:13,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 13:09:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:13,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:09:13,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:14,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:14,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:14,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:14,770 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:09:14,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784622055] [2021-11-23 13:09:14,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784622055] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:14,770 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:14,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 13:09:14,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969070958] [2021-11-23 13:09:14,771 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:14,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:09:14,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:09:14,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:09:14,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:09:14,773 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-11-23 13:09:18,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:09:20,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:09:23,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:09:23,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:23,248 INFO L93 Difference]: Finished difference Result 108 states and 139 transitions. [2021-11-23 13:09:23,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:09:23,249 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 10 [2021-11-23 13:09:23,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:23,251 INFO L225 Difference]: With dead ends: 108 [2021-11-23 13:09:23,251 INFO L226 Difference]: Without dead ends: 99 [2021-11-23 13:09:23,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:09:23,253 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 65 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:23,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 654 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 3 Unknown, 13 Unchecked, 8.3s Time] [2021-11-23 13:09:23,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-23 13:09:23,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 57. [2021-11-23 13:09:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 56 states have internal predecessors, (74), 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) [2021-11-23 13:09:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2021-11-23 13:09:23,268 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 74 transitions. Word has length 10 [2021-11-23 13:09:23,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:23,269 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 74 transitions. [2021-11-23 13:09:23,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-11-23 13:09:23,269 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 74 transitions. [2021-11-23 13:09:23,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 13:09:23,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:23,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:23,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-23 13:09:23,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:09:23,473 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:09:23,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:23,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1242386432, now seen corresponding path program 1 times [2021-11-23 13:09:23,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:09:23,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314408208] [2021-11-23 13:09:23,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:23,475 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:09:23,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:09:23,476 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:09:23,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 13:09:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:24,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:09:24,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:24,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:24,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:24,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:24,995 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:09:24,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314408208] [2021-11-23 13:09:24,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314408208] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:24,996 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:24,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 13:09:24,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533529059] [2021-11-23 13:09:24,997 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:24,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:09:24,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:09:24,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:09:24,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:09:24,999 INFO L87 Difference]: Start difference. First operand 57 states and 74 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2021-11-23 13:09:27,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:09:30,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:09:32,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:09:34,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:09:36,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 13:09:36,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:36,643 INFO L93 Difference]: Finished difference Result 108 states and 138 transitions. [2021-11-23 13:09:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:09:36,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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 11 [2021-11-23 13:09:36,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:36,646 INFO L225 Difference]: With dead ends: 108 [2021-11-23 13:09:36,647 INFO L226 Difference]: Without dead ends: 99 [2021-11-23 13:09:36,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:09:36,649 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 69 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:36,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 632 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 5 Unknown, 18 Unchecked, 11.4s Time] [2021-11-23 13:09:36,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-23 13:09:36,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 57. [2021-11-23 13:09:36,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 56 states have internal predecessors, (73), 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) [2021-11-23 13:09:36,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions. [2021-11-23 13:09:36,662 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 11 [2021-11-23 13:09:36,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:36,662 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions. [2021-11-23 13:09:36,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2021-11-23 13:09:36,663 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2021-11-23 13:09:36,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 13:09:36,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:36,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:36,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:36,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:09:36,881 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:09:36,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:36,882 INFO L85 PathProgramCache]: Analyzing trace with hash 601224780, now seen corresponding path program 1 times [2021-11-23 13:09:36,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:09:36,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870029135] [2021-11-23 13:09:36,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:36,882 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:09:36,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:09:36,885 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:09:36,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 13:09:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:38,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:09:38,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:38,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:38,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:39,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:39,431 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:09:39,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870029135] [2021-11-23 13:09:39,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870029135] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:39,432 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:39,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 13:09:39,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304519753] [2021-11-23 13:09:39,432 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:39,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:09:39,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:09:39,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:09:39,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:09:39,434 INFO L87 Difference]: Start difference. First operand 57 states and 73 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2021-11-23 13:09:39,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:39,713 INFO L93 Difference]: Finished difference Result 66 states and 82 transitions. [2021-11-23 13:09:39,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:09:39,715 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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 13 [2021-11-23 13:09:39,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:39,716 INFO L225 Difference]: With dead ends: 66 [2021-11-23 13:09:39,716 INFO L226 Difference]: Without dead ends: 57 [2021-11-23 13:09:39,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:09:39,719 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 7 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:39,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 371 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 12 Unchecked, 0.1s Time] [2021-11-23 13:09:39,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-23 13:09:39,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-23 13:09:39,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 56 states have internal predecessors, (72), 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) [2021-11-23 13:09:39,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2021-11-23 13:09:39,729 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 13 [2021-11-23 13:09:39,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:39,729 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2021-11-23 13:09:39,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2021-11-23 13:09:39,730 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2021-11-23 13:09:39,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 13:09:39,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:39,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:39,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:39,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:09:39,945 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:09:39,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:39,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1089938183, now seen corresponding path program 1 times [2021-11-23 13:09:39,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:09:39,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785400186] [2021-11-23 13:09:39,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:39,947 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:09:39,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:09:39,948 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:09:39,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 13:09:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:40,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 13:09:40,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:40,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:40,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:41,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:41,118 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:09:41,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785400186] [2021-11-23 13:09:41,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785400186] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:41,119 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:41,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-23 13:09:41,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471236883] [2021-11-23 13:09:41,120 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:41,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 13:09:41,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:09:41,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 13:09:41,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:09:41,122 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2021-11-23 13:09:41,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:41,689 INFO L93 Difference]: Finished difference Result 69 states and 83 transitions. [2021-11-23 13:09:41,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:09:41,692 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 14 [2021-11-23 13:09:41,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:41,693 INFO L225 Difference]: With dead ends: 69 [2021-11-23 13:09:41,693 INFO L226 Difference]: Without dead ends: 66 [2021-11-23 13:09:41,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:09:41,695 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 157 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:41,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 254 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:09:41,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-23 13:09:41,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2021-11-23 13:09:41,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.2758620689655173) internal successors, (74), 58 states have internal predecessors, (74), 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) [2021-11-23 13:09:41,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2021-11-23 13:09:41,709 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 14 [2021-11-23 13:09:41,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:41,710 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2021-11-23 13:09:41,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2021-11-23 13:09:41,710 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2021-11-23 13:09:41,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 13:09:41,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:41,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:41,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:41,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:09:41,925 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:09:41,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:41,926 INFO L85 PathProgramCache]: Analyzing trace with hash 980104924, now seen corresponding path program 1 times [2021-11-23 13:09:41,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:09:41,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155656844] [2021-11-23 13:09:41,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:41,927 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:09:41,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:09:41,928 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:09:41,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 13:09:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:42,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-23 13:09:42,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:43,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:43,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:45,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:45,111 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:09:45,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155656844] [2021-11-23 13:09:45,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155656844] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:45,111 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:45,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2021-11-23 13:09:45,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618974796] [2021-11-23 13:09:45,112 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:45,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 13:09:45,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:09:45,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 13:09:45,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-11-23 13:09:45,113 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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) [2021-11-23 13:09:46,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:46,517 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2021-11-23 13:09:46,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 13:09:46,518 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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 18 [2021-11-23 13:09:46,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:46,519 INFO L225 Difference]: With dead ends: 66 [2021-11-23 13:09:46,519 INFO L226 Difference]: Without dead ends: 57 [2021-11-23 13:09:46,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2021-11-23 13:09:46,521 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 165 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:46,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 510 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 24 Unchecked, 0.6s Time] [2021-11-23 13:09:46,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-23 13:09:46,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-23 13:09:46,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 56 states have internal predecessors, (71), 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) [2021-11-23 13:09:46,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2021-11-23 13:09:46,531 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 71 transitions. Word has length 18 [2021-11-23 13:09:46,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:46,531 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 71 transitions. [2021-11-23 13:09:46,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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) [2021-11-23 13:09:46,532 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 71 transitions. [2021-11-23 13:09:46,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 13:09:46,533 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:46,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:46,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:46,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:09:46,737 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:09:46,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:46,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1026077179, now seen corresponding path program 1 times [2021-11-23 13:09:46,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:09:46,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017113552] [2021-11-23 13:09:46,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:46,740 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:09:46,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:09:46,757 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:09:46,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 13:09:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:48,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:09:48,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:48,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:48,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:49,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:49,596 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:09:49,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017113552] [2021-11-23 13:09:49,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017113552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:49,596 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:49,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 13:09:49,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740581848] [2021-11-23 13:09:49,597 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:49,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:09:49,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:09:49,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:09:49,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:09:49,599 INFO L87 Difference]: Start difference. First operand 57 states and 71 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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) [2021-11-23 13:09:50,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:50,058 INFO L93 Difference]: Finished difference Result 104 states and 131 transitions. [2021-11-23 13:09:50,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:09:50,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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 26 [2021-11-23 13:09:50,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:50,059 INFO L225 Difference]: With dead ends: 104 [2021-11-23 13:09:50,060 INFO L226 Difference]: Without dead ends: 57 [2021-11-23 13:09:50,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:09:50,061 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 68 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:50,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 242 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 8 Unchecked, 0.3s Time] [2021-11-23 13:09:50,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-23 13:09:50,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-23 13:09:50,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 56 states have internal predecessors, (69), 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) [2021-11-23 13:09:50,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2021-11-23 13:09:50,070 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 26 [2021-11-23 13:09:50,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:50,071 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2021-11-23 13:09:50,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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) [2021-11-23 13:09:50,071 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2021-11-23 13:09:50,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 13:09:50,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:50,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:50,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-23 13:09:50,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:09:50,293 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:09:50,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:50,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1298044274, now seen corresponding path program 1 times [2021-11-23 13:09:50,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:09:50,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701685803] [2021-11-23 13:09:50,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:50,295 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:09:50,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:09:50,301 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:09:50,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 13:09:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:52,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 13:09:52,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:53,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:53,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:56,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:56,439 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:09:56,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701685803] [2021-11-23 13:09:56,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701685803] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:56,439 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:56,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-23 13:09:56,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357156996] [2021-11-23 13:09:56,440 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:56,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:09:56,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:09:56,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:09:56,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:09:56,442 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-11-23 13:09:56,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:56,506 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2021-11-23 13:09:56,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:09:56,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 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 33 [2021-11-23 13:09:56,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:56,508 INFO L225 Difference]: With dead ends: 57 [2021-11-23 13:09:56,509 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 13:09:56,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:09:56,510 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:56,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 8 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:09:56,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 13:09:56,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 13:09:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-23 13:09:56,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 13:09:56,514 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-11-23 13:09:56,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:56,514 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:09:56,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-11-23 13:09:56,514 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 13:09:56,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 13:09:56,517 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 13:09:56,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:56,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:09:56,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 13:09:57,469 INFO L854 garLoopResultBuilder]: At program point L184(lines 119 185) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start___ieee754_asinf_#res#1|) (= |ULTIMATE.start___ieee754_asinf_~x#1| .cse0))) [2021-11-23 13:09:57,469 INFO L858 garLoopResultBuilder]: For program point L135(lines 135 136) no Hoare annotation was computed. [2021-11-23 13:09:57,469 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 13:09:57,469 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2021-11-23 13:09:57,469 INFO L854 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: false [2021-11-23 13:09:57,469 INFO L858 garLoopResultBuilder]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2021-11-23 13:09:57,469 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 174) no Hoare annotation was computed. [2021-11-23 13:09:57,470 INFO L858 garLoopResultBuilder]: For program point L170-1(lines 162 180) no Hoare annotation was computed. [2021-11-23 13:09:57,470 INFO L858 garLoopResultBuilder]: For program point L170-2(lines 170 174) no Hoare annotation was computed. [2021-11-23 13:09:57,470 INFO L861 garLoopResultBuilder]: At program point L204(lines 187 205) the Hoare annotation is: true [2021-11-23 13:09:57,470 INFO L858 garLoopResultBuilder]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2021-11-23 13:09:57,470 INFO L854 garLoopResultBuilder]: At program point L122-2(lines 122 126) the Hoare annotation is: (and (= ~huge_asin~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= |ULTIMATE.start___ieee754_asinf_~x#1| (fp.neg (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_asin~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 13:09:57,470 INFO L858 garLoopResultBuilder]: For program point L56(lines 56 57) no Hoare annotation was computed. [2021-11-23 13:09:57,470 INFO L858 garLoopResultBuilder]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2021-11-23 13:09:57,470 INFO L854 garLoopResultBuilder]: At program point L23(lines 14 24) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start___ieee754_asinf_#res#1|) |ULTIMATE.start_main_#t~short17#1| (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32)) (= |ULTIMATE.start___ieee754_asinf_~x#1| .cse0) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= .cse0 (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~0#1|))) (= |ULTIMATE.start_main_~res~0#1| .cse0))) [2021-11-23 13:09:57,471 INFO L858 garLoopResultBuilder]: For program point L56-2(lines 56 57) no Hoare annotation was computed. [2021-11-23 13:09:57,471 INFO L854 garLoopResultBuilder]: At program point L106(lines 94 107) the Hoare annotation is: false [2021-11-23 13:09:57,471 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-11-23 13:09:57,471 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 13:09:57,471 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 84) no Hoare annotation was computed. [2021-11-23 13:09:57,471 INFO L854 garLoopResultBuilder]: At program point L92(lines 28 93) the Hoare annotation is: false [2021-11-23 13:09:57,471 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 44) no Hoare annotation was computed. [2021-11-23 13:09:57,472 INFO L858 garLoopResultBuilder]: For program point L159(lines 159 180) no Hoare annotation was computed. [2021-11-23 13:09:57,472 INFO L858 garLoopResultBuilder]: For program point L159-2(lines 119 185) no Hoare annotation was computed. [2021-11-23 13:09:57,472 INFO L858 garLoopResultBuilder]: For program point L77(lines 77 83) no Hoare annotation was computed. [2021-11-23 13:09:57,472 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 13:09:57,472 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 46) no Hoare annotation was computed. [2021-11-23 13:09:57,473 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 148) no Hoare annotation was computed. [2021-11-23 13:09:57,473 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 82) no Hoare annotation was computed. [2021-11-23 13:09:57,473 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2021-11-23 13:09:57,473 INFO L854 garLoopResultBuilder]: At program point L96-2(lines 96 100) the Hoare annotation is: false [2021-11-23 13:09:57,473 INFO L854 garLoopResultBuilder]: At program point L64-2(lines 64 73) the Hoare annotation is: false [2021-11-23 13:09:57,473 INFO L858 garLoopResultBuilder]: For program point L64-3(lines 28 93) no Hoare annotation was computed. [2021-11-23 13:09:57,474 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 148) no Hoare annotation was computed. [2021-11-23 13:09:57,474 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 13:09:57,474 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 200) no Hoare annotation was computed. [2021-11-23 13:09:57,474 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2021-11-23 13:09:57,474 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2021-11-23 13:09:57,474 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 165 169) no Hoare annotation was computed. [2021-11-23 13:09:57,474 INFO L854 garLoopResultBuilder]: At program point L165-2(lines 165 169) the Hoare annotation is: false [2021-11-23 13:09:57,475 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-11-23 13:09:57,475 INFO L858 garLoopResultBuilder]: For program point L33-1(lines 33 37) no Hoare annotation was computed. [2021-11-23 13:09:57,475 INFO L858 garLoopResultBuilder]: For program point L66-2(lines 66 70) no Hoare annotation was computed. [2021-11-23 13:09:57,475 INFO L854 garLoopResultBuilder]: At program point L33-2(lines 33 37) the Hoare annotation is: false [2021-11-23 13:09:57,475 INFO L858 garLoopResultBuilder]: For program point L33-3(lines 33 37) no Hoare annotation was computed. [2021-11-23 13:09:57,476 INFO L858 garLoopResultBuilder]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2021-11-23 13:09:57,476 INFO L858 garLoopResultBuilder]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2021-11-23 13:09:57,476 INFO L854 garLoopResultBuilder]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2021-11-23 13:09:57,476 INFO L854 garLoopResultBuilder]: At program point L17-2(lines 17 21) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 |ULTIMATE.start___ieee754_asinf_#res#1|) |ULTIMATE.start_main_#t~short17#1| (= |ULTIMATE.start___ieee754_asinf_~x#1| .cse0) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= |ULTIMATE.start_main_~res~0#1| .cse0))) [2021-11-23 13:09:57,477 INFO L858 garLoopResultBuilder]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2021-11-23 13:09:57,477 INFO L858 garLoopResultBuilder]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2021-11-23 13:09:57,477 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-11-23 13:09:57,477 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 148) no Hoare annotation was computed. [2021-11-23 13:09:57,477 INFO L858 garLoopResultBuilder]: For program point L199-2(lines 199 202) no Hoare annotation was computed. [2021-11-23 13:09:57,478 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 133 148) no Hoare annotation was computed. [2021-11-23 13:09:57,478 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-11-23 13:09:57,478 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 147) no Hoare annotation was computed. [2021-11-23 13:09:57,478 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 105) no Hoare annotation was computed. [2021-11-23 13:09:57,478 INFO L858 garLoopResultBuilder]: For program point L101-1(lines 94 107) no Hoare annotation was computed. [2021-11-23 13:09:57,479 INFO L858 garLoopResultBuilder]: For program point L101-2(lines 101 105) no Hoare annotation was computed. [2021-11-23 13:09:57,483 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:57,485 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:09:57,498 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:09:57,516 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:09:57,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:09:57 BoogieIcfgContainer [2021-11-23 13:09:57,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:09:57,521 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:09:57,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:09:57,522 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:09:57,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:09:11" (3/4) ... [2021-11-23 13:09:57,526 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 13:09:57,541 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-23 13:09:57,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-23 13:09:57,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 13:09:57,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 13:09:57,570 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2021-11-23 13:09:57,571 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && aux-res == -0.0f && __signbit_float(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2021-11-23 13:09:57,572 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == 1bv32) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2021-11-23 13:09:57,598 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 13:09:57,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:09:57,599 INFO L158 Benchmark]: Toolchain (without parser) took 58433.90ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 41.2MB in the beginning and 33.0MB in the end (delta: 8.2MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2021-11-23 13:09:57,600 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:09:57,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.53ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 43.6MB in the end (delta: -2.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 13:09:57,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.68ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 40.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:09:57,601 INFO L158 Benchmark]: Boogie Preprocessor took 77.19ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 38.6MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 13:09:57,602 INFO L158 Benchmark]: RCFGBuilder took 12151.71ms. Allocated memory is still 62.9MB. Free memory was 38.6MB in the beginning and 36.9MB in the end (delta: 1.7MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2021-11-23 13:09:57,603 INFO L158 Benchmark]: TraceAbstraction took 45648.91ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 36.4MB in the beginning and 38.4MB in the end (delta: -2.0MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2021-11-23 13:09:57,603 INFO L158 Benchmark]: Witness Printer took 77.35ms. Allocated memory is still 83.9MB. Free memory was 38.4MB in the beginning and 33.0MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 13:09:57,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.53ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 43.6MB in the end (delta: -2.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.68ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 40.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.19ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 38.6MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 12151.71ms. Allocated memory is still 62.9MB. Free memory was 38.6MB in the beginning and 36.9MB in the end (delta: 1.7MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 45648.91ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 36.4MB in the beginning and 38.4MB in the end (delta: -2.0MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * Witness Printer took 77.35ms. Allocated memory is still 83.9MB. Free memory was 38.4MB in the beginning and 33.0MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 - PositiveResult [Line: 200]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 547 SdHoareTripleChecker+Valid, 21.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 547 mSDsluCounter, 2749 SdHoareTripleChecker+Invalid, 20.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 75 IncrementalHoareTripleChecker+Unchecked, 2173 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 576 mSDtfsCounter, 141 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 270 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 91 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 18 NumberOfFragments, 89 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 7.5s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 252 ConstructedInterpolants, 25 QuantifiedInterpolants, 1158 SizeOfPredicates, 46 NumberOfNonLiveVariables, 551 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant [2021-11-23 13:09:57,616 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 13:09:57,617 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((huge_asin == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_asin) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && aux-res == -0.0f && __signbit_float(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == 1bv32) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 13:09:57,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f40b1ba2-a224-449c-9189-570d9efe63bf/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE