./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be --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 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be --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 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:07:25,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:07:25,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:07:25,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:07:25,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:07:25,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:07:25,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:07:25,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:07:25,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:07:25,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:07:25,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:07:25,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:07:25,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:07:25,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:07:25,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:07:25,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:07:25,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:07:25,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:07:25,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:07:25,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:07:25,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:07:25,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:07:25,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:07:25,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:07:25,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:07:25,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:07:25,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:07:25,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:07:25,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:07:25,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:07:25,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:07:25,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:07:25,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:07:25,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:07:25,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:07:25,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:07:25,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:07:25,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:07:25,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:07:25,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:07:25,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:07:25,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:07:25,364 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:07:25,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:07:25,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:07:25,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:07:25,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:07:25,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:07:25,367 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:07:25,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:07:25,367 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:07:25,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:07:25,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:07:25,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:07:25,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:07:25,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:07:25,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:07:25,369 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:07:25,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:07:25,369 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:07:25,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:07:25,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:07:25,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:07:25,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:07:25,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:07:25,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:07:25,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:07:25,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:07:25,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:07:25,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:07:25,373 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:07:25,375 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:07:25,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:07:25,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:07:25,375 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_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f [2021-10-21 19:07:25,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:07:25,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:07:25,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:07:25,649 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:07:25,650 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:07:25,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-10-21 19:07:25,724 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/data/678527ee3/08a36f184b2441a79a6b3801bc108a2d/FLAG88e3c057a [2021-10-21 19:07:26,190 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:07:26,191 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-10-21 19:07:26,204 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/data/678527ee3/08a36f184b2441a79a6b3801bc108a2d/FLAG88e3c057a [2021-10-21 19:07:26,558 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/data/678527ee3/08a36f184b2441a79a6b3801bc108a2d [2021-10-21 19:07:26,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:07:26,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:07:26,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:07:26,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:07:26,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:07:26,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:07:26" (1/1) ... [2021-10-21 19:07:26,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205b0103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:26, skipping insertion in model container [2021-10-21 19:07:26,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:07:26" (1/1) ... [2021-10-21 19:07:26,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:07:26,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:07:26,877 WARN L228 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_9be8a930-0dec-4cf3-a375-22190923f332/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-10-21 19:07:26,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:07:26,893 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:07:26,938 WARN L228 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_9be8a930-0dec-4cf3-a375-22190923f332/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-10-21 19:07:26,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:07:26,958 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:07:26,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:26 WrapperNode [2021-10-21 19:07:26,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:07:26,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:07:26,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:07:26,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:07:26,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:26" (1/1) ... [2021-10-21 19:07:26,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:26" (1/1) ... [2021-10-21 19:07:27,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:07:27,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:07:27,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:07:27,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:07:27,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:26" (1/1) ... [2021-10-21 19:07:27,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:26" (1/1) ... [2021-10-21 19:07:27,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:26" (1/1) ... [2021-10-21 19:07:27,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:26" (1/1) ... [2021-10-21 19:07:27,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:26" (1/1) ... [2021-10-21 19:07:27,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:26" (1/1) ... [2021-10-21 19:07:27,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:26" (1/1) ... [2021-10-21 19:07:27,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:07:27,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:07:27,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:07:27,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:07:27,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:26" (1/1) ... [2021-10-21 19:07:27,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:07:27,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:07:27,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:07:27,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:07:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:07:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:07:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:07:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-21 19:07:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-21 19:07:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:07:27,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:07:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:07:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-21 19:07:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:07:27,625 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:07:27,625 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-21 19:07:27,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:07:27 BoogieIcfgContainer [2021-10-21 19:07:27,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:07:27,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:07:27,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:07:27,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:07:27,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:07:26" (1/3) ... [2021-10-21 19:07:27,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb4d7c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:07:27, skipping insertion in model container [2021-10-21 19:07:27,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:26" (2/3) ... [2021-10-21 19:07:27,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb4d7c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:07:27, skipping insertion in model container [2021-10-21 19:07:27,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:07:27" (3/3) ... [2021-10-21 19:07:27,645 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2021-10-21 19:07:27,650 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:07:27,650 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:07:27,708 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:07:27,714 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 [2021-10-21 19:07:27,715 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:07:27,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 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) [2021-10-21 19:07:27,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:07:27,734 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:07:27,735 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:07:27,735 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:07:27,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:07:27,741 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2021-10-21 19:07:27,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:07:27,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894593036] [2021-10-21 19:07:27,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:07:27,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:07:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:07:27,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:27,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:07:27,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894593036] [2021-10-21 19:07:27,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894593036] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:07:27,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:07:27,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:07:27,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352111483] [2021-10-21 19:07:27,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:07:27,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:07:27,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:07:27,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:07:27,933 INFO L87 Difference]: Start difference. First operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-21 19:07:27,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:07:27,951 INFO L93 Difference]: Finished difference Result 79 states and 128 transitions. [2021-10-21 19:07:27,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:07:27,952 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 [2021-10-21 19:07:27,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:07:27,961 INFO L225 Difference]: With dead ends: 79 [2021-10-21 19:07:27,961 INFO L226 Difference]: Without dead ends: 37 [2021-10-21 19:07:27,964 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:07:27,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-21 19:07:27,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-21 19:07:27,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 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) [2021-10-21 19:07:27,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2021-10-21 19:07:27,995 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2021-10-21 19:07:27,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:07:27,996 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2021-10-21 19:07:27,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-21 19:07:27,996 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-10-21 19:07:27,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:07:27,997 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:07:27,998 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:07:27,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:07:27,998 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:07:27,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:07:27,999 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2021-10-21 19:07:27,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:07:28,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787524354] [2021-10-21 19:07:28,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:07:28,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:07:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:07:28,064 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:07:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:07:28,132 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:07:28,132 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:07:28,134 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:07:28,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:07:28,141 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:07:28,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:07:28 BoogieIcfgContainer [2021-10-21 19:07:28,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:07:28,183 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:07:28,183 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:07:28,183 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:07:28,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:07:27" (3/4) ... [2021-10-21 19:07:28,188 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:07:28,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:07:28,191 INFO L168 Benchmark]: Toolchain (without parser) took 1628.09 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 57.7 MB in the beginning and 65.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:07:28,193 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 44.9 MB in the beginning and 44.9 MB in the end (delta: 39.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:07:28,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.62 ms. Allocated memory is still 90.2 MB. Free memory was 57.5 MB in the beginning and 64.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:07:28,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.58 ms. Allocated memory is still 90.2 MB. Free memory was 64.0 MB in the beginning and 61.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:07:28,201 INFO L168 Benchmark]: Boogie Preprocessor took 33.14 ms. Allocated memory is still 90.2 MB. Free memory was 61.9 MB in the beginning and 60.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:07:28,202 INFO L168 Benchmark]: RCFGBuilder took 568.06 ms. Allocated memory is still 90.2 MB. Free memory was 60.1 MB in the beginning and 44.8 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:07:28,203 INFO L168 Benchmark]: TraceAbstraction took 544.04 ms. Allocated memory is still 115.3 MB. Free memory was 92.2 MB in the beginning and 65.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:07:28,203 INFO L168 Benchmark]: Witness Printer took 6.10 ms. Allocated memory is still 115.3 MB. Free memory is still 65.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:07:28,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 44.9 MB in the beginning and 44.9 MB in the end (delta: 39.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 395.62 ms. Allocated memory is still 90.2 MB. Free memory was 57.5 MB in the beginning and 64.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.58 ms. Allocated memory is still 90.2 MB. Free memory was 64.0 MB in the beginning and 61.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.14 ms. Allocated memory is still 90.2 MB. Free memory was 61.9 MB in the beginning and 60.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 568.06 ms. Allocated memory is still 90.2 MB. Free memory was 60.1 MB in the beginning and 44.8 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 544.04 ms. Allocated memory is still 115.3 MB. Free memory was 92.2 MB in the beginning and 65.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. * Witness Printer took 6.10 ms. Allocated memory is still 115.3 MB. Free memory is still 65.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 147]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of bitwiseAnd at line 56, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 146. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L139] double x = __VERIFIER_nondet_double(); [L141] COND TRUE x == 0.0 || x == -0.0 [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L143] double res = __ieee754_exp(x); [L146] COND TRUE res != 1.0 VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L147] reach_error() VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 433.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.6ms, AutomataDifference: 45.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 53 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 18.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.2ms SsaConstructionTime, 92.8ms SatisfiabilityAnalysisTime, 53.7ms InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-10-21 19:07:28,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:07:30,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:07:30,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:07:30,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:07:30,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:07:30,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:07:30,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:07:31,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:07:31,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:07:31,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:07:31,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:07:31,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:07:31,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:07:31,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:07:31,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:07:31,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:07:31,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:07:31,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:07:31,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:07:31,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:07:31,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:07:31,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:07:31,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:07:31,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:07:31,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:07:31,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:07:31,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:07:31,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:07:31,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:07:31,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:07:31,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:07:31,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:07:31,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:07:31,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:07:31,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:07:31,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:07:31,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:07:31,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:07:31,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:07:31,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:07:31,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:07:31,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 19:07:31,175 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:07:31,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:07:31,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:07:31,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:07:31,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:07:31,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:07:31,180 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:07:31,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:07:31,181 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:07:31,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:07:31,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:07:31,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:07:31,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:07:31,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:07:31,184 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:07:31,185 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:07:31,185 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:07:31,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:07:31,185 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:07:31,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:07:31,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:07:31,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:07:31,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:07:31,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:07:31,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:07:31,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:07:31,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:07:31,189 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:07:31,189 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:07:31,189 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:07:31,190 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:07:31,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:07:31,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:07:31,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:07:31,191 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_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f [2021-10-21 19:07:31,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:07:31,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:07:31,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:07:31,782 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:07:31,783 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:07:31,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-10-21 19:07:31,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/data/5fdaad432/37c8a2335ebf4c80904134dbc6eecc94/FLAG810da9f39 [2021-10-21 19:07:32,492 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:07:32,499 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-10-21 19:07:32,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/data/5fdaad432/37c8a2335ebf4c80904134dbc6eecc94/FLAG810da9f39 [2021-10-21 19:07:32,836 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/data/5fdaad432/37c8a2335ebf4c80904134dbc6eecc94 [2021-10-21 19:07:32,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:07:32,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:07:32,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:07:32,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:07:32,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:07:32,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:07:32" (1/1) ... [2021-10-21 19:07:32,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30803f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:32, skipping insertion in model container [2021-10-21 19:07:32,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:07:32" (1/1) ... [2021-10-21 19:07:32,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:07:32,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:07:33,279 WARN L228 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_9be8a930-0dec-4cf3-a375-22190923f332/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-10-21 19:07:33,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:07:33,346 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:07:33,439 WARN L228 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_9be8a930-0dec-4cf3-a375-22190923f332/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-10-21 19:07:33,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:07:33,478 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:07:33,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:33 WrapperNode [2021-10-21 19:07:33,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:07:33,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:07:33,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:07:33,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:07:33,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:33" (1/1) ... [2021-10-21 19:07:33,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:33" (1/1) ... [2021-10-21 19:07:33,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:07:33,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:07:33,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:07:33,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:07:33,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:33" (1/1) ... [2021-10-21 19:07:33,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:33" (1/1) ... [2021-10-21 19:07:33,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:33" (1/1) ... [2021-10-21 19:07:33,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:33" (1/1) ... [2021-10-21 19:07:33,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:33" (1/1) ... [2021-10-21 19:07:33,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:33" (1/1) ... [2021-10-21 19:07:33,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:33" (1/1) ... [2021-10-21 19:07:33,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:07:33,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:07:33,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:07:33,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:07:33,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:33" (1/1) ... [2021-10-21 19:07:33,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:07:33,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:07:33,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:07:33,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:07:33,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-21 19:07:33,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-21 19:07:33,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 19:07:33,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:07:33,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-21 19:07:33,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:07:33,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:07:33,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:07:33,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:07:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:07:49,490 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:07:49,491 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-21 19:07:49,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:07:49 BoogieIcfgContainer [2021-10-21 19:07:49,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:07:49,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:07:49,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:07:49,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:07:49,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:07:32" (1/3) ... [2021-10-21 19:07:49,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3142d281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:07:49, skipping insertion in model container [2021-10-21 19:07:49,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:07:33" (2/3) ... [2021-10-21 19:07:49,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3142d281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:07:49, skipping insertion in model container [2021-10-21 19:07:49,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:07:49" (3/3) ... [2021-10-21 19:07:49,506 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2021-10-21 19:07:49,512 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:07:49,513 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:07:49,575 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:07:49,583 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 [2021-10-21 19:07:49,584 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:07:49,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 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) [2021-10-21 19:07:49,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:07:49,609 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:07:49,610 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:07:49,611 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:07:49,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:07:49,618 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2021-10-21 19:07:49,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:07:49,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531547223] [2021-10-21 19:07:49,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:07:49,636 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:07:49,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:07:49,641 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:07:49,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:07:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:07:50,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-21 19:07:50,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:07:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:50,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:07:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:50,690 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:07:50,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531547223] [2021-10-21 19:07:50,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531547223] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:07:50,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:07:50,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:07:50,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479986830] [2021-10-21 19:07:50,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:07:50,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:07:50,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:07:50,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:07:50,719 INFO L87 Difference]: Start difference. First operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-21 19:07:50,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:07:50,752 INFO L93 Difference]: Finished difference Result 79 states and 128 transitions. [2021-10-21 19:07:50,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:07:50,753 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 [2021-10-21 19:07:50,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:07:50,765 INFO L225 Difference]: With dead ends: 79 [2021-10-21 19:07:50,772 INFO L226 Difference]: Without dead ends: 37 [2021-10-21 19:07:50,775 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:07:50,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-21 19:07:50,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-21 19:07:50,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 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) [2021-10-21 19:07:50,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2021-10-21 19:07:50,815 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2021-10-21 19:07:50,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:07:50,816 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2021-10-21 19:07:50,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-21 19:07:50,816 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-10-21 19:07:50,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:07:50,817 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:07:50,818 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:07:50,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:07:51,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:07:51,023 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:07:51,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:07:51,024 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2021-10-21 19:07:51,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:07:51,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630667923] [2021-10-21 19:07:51,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:07:51,026 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:07:51,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:07:51,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:07:51,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:07:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:07:51,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:07:51,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:07:52,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:52,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:07:53,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:53,484 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:07:53,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630667923] [2021-10-21 19:07:53,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630667923] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:07:53,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:07:53,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-21 19:07:53,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659676149] [2021-10-21 19:07:53,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:07:53,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:07:53,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:07:53,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:07:53,489 INFO L87 Difference]: Start difference. First operand 37 states and 48 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) [2021-10-21 19:08:07,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:08:07,062 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2021-10-21 19:08:07,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:08:07,577 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 12 [2021-10-21 19:08:07,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:08:07,578 INFO L225 Difference]: With dead ends: 61 [2021-10-21 19:08:07,578 INFO L226 Difference]: Without dead ends: 31 [2021-10-21 19:08:07,579 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1349.7ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:08:07,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-21 19:08:07,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2021-10-21 19:08:07,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 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) [2021-10-21 19:08:07,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2021-10-21 19:08:07,586 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 12 [2021-10-21 19:08:07,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:08:07,587 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2021-10-21 19:08:07,587 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) [2021-10-21 19:08:07,587 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2021-10-21 19:08:07,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-21 19:08:07,588 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:08:07,589 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:08:07,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:08:07,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:08:07,803 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:08:07,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:08:07,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1714660040, now seen corresponding path program 1 times [2021-10-21 19:08:07,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:08:07,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900004778] [2021-10-21 19:08:07,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:08:07,805 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:08:07,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:08:07,807 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:08:07,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:08:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:08:08,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:08:08,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:08:12,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:08:12,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:08:29,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:08:29,616 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:08:29,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900004778] [2021-10-21 19:08:29,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900004778] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:08:29,617 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:08:29,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-21 19:08:29,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009611173] [2021-10-21 19:08:29,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:08:29,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:08:29,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:08:29,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:08:29,627 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 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) [2021-10-21 19:09:18,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:18,653 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-10-21 19:09:18,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:09:18,654 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 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 [2021-10-21 19:09:18,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:09:18,655 INFO L225 Difference]: With dead ends: 31 [2021-10-21 19:09:18,655 INFO L226 Difference]: Without dead ends: 27 [2021-10-21 19:09:18,656 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 13722.6ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:09:18,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-21 19:09:18,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-21 19:09:18,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 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) [2021-10-21 19:09:18,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-10-21 19:09:18,660 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 13 [2021-10-21 19:09:18,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:09:18,660 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-21 19:09:18,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 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) [2021-10-21 19:09:18,661 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-10-21 19:09:18,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-21 19:09:18,661 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:09:18,661 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:09:18,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:09:18,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:09:18,862 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:09:18,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:18,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1479203763, now seen corresponding path program 1 times [2021-10-21 19:09:18,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:09:18,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470687567] [2021-10-21 19:09:18,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:18,864 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:09:18,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:09:18,869 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:09:18,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:09:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:21,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:09:21,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:09:23,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:23,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:09:35,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:35,811 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:09:35,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470687567] [2021-10-21 19:09:35,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470687567] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:09:35,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:09:35,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-21 19:09:35,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079250757] [2021-10-21 19:09:35,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:09:35,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:09:35,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:09:35,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:09:35,815 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-10-21 19:09:36,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:36,276 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-10-21 19:09:36,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:09:36,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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 15 [2021-10-21 19:09:36,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:09:36,279 INFO L225 Difference]: With dead ends: 27 [2021-10-21 19:09:36,279 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:09:36,280 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3991.2ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:09:36,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:09:36,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:09:36,280 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) [2021-10-21 19:09:36,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:09:36,281 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-21 19:09:36,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:09:36,281 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:09:36,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-10-21 19:09:36,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:09:36,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:09:36,285 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:09:36,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-21 19:09:36,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:09:36,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:09:36,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:09:36,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:09:36,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:09:36,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:09:36,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:09:36,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:09:37,739 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 71) no Hoare annotation was computed. [2021-10-21 19:09:37,740 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 118 122) no Hoare annotation was computed. [2021-10-21 19:09:37,740 INFO L853 garLoopResultBuilder]: At program point L118-2(lines 118 122) the Hoare annotation is: false [2021-10-21 19:09:37,741 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 130) no Hoare annotation was computed. [2021-10-21 19:09:37,741 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:09:37,741 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:09:37,742 INFO L860 garLoopResultBuilder]: At program point L152(lines 133 153) the Hoare annotation is: true [2021-10-21 19:09:37,742 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-21 19:09:37,742 INFO L857 garLoopResultBuilder]: For program point L70-2(line 70) no Hoare annotation was computed. [2021-10-21 19:09:37,743 INFO L857 garLoopResultBuilder]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2021-10-21 19:09:37,743 INFO L853 garLoopResultBuilder]: At program point L62-2(lines 62 66) the Hoare annotation is: false [2021-10-21 19:09:37,744 INFO L857 garLoopResultBuilder]: For program point L62-3(lines 60 71) no Hoare annotation was computed. [2021-10-21 19:09:37,744 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 88) no Hoare annotation was computed. [2021-10-21 19:09:37,744 INFO L857 garLoopResultBuilder]: For program point L79-2(lines 79 88) no Hoare annotation was computed. [2021-10-21 19:09:37,745 INFO L857 garLoopResultBuilder]: For program point L104-1(lines 104 108) no Hoare annotation was computed. [2021-10-21 19:09:37,745 INFO L853 garLoopResultBuilder]: At program point L104-2(lines 104 108) the Hoare annotation is: false [2021-10-21 19:09:37,745 INFO L853 garLoopResultBuilder]: At program point L129(lines 46 131) the Hoare annotation is: (and (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (exists ((ULTIMATE.start___ieee754_exp_~x (_ FloatingPoint 11 53))) (and (= (fp.add currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) ULTIMATE.start___ieee754_exp_~x) |ULTIMATE.start___ieee754_exp_#res|) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53)))) (= currentRoundingMode roundNearestTiesToEven) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53))) [2021-10-21 19:09:37,746 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 149) no Hoare annotation was computed. [2021-10-21 19:09:37,746 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-10-21 19:09:37,746 INFO L857 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-10-21 19:09:37,747 INFO L857 garLoopResultBuilder]: For program point L98(lines 98 101) no Hoare annotation was computed. [2021-10-21 19:09:37,747 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:09:37,747 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 128) no Hoare annotation was computed. [2021-10-21 19:09:37,748 INFO L857 garLoopResultBuilder]: For program point L90(lines 90 93) no Hoare annotation was computed. [2021-10-21 19:09:37,748 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 116 130) no Hoare annotation was computed. [2021-10-21 19:09:37,748 INFO L857 garLoopResultBuilder]: For program point L123-2(lines 123 128) no Hoare annotation was computed. [2021-10-21 19:09:37,749 INFO L857 garLoopResultBuilder]: For program point L90-2(lines 78 93) no Hoare annotation was computed. [2021-10-21 19:09:37,749 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 147) no Hoare annotation was computed. [2021-10-21 19:09:37,749 INFO L857 garLoopResultBuilder]: For program point L74(lines 74 75) no Hoare annotation was computed. [2021-10-21 19:09:37,750 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:09:37,750 INFO L857 garLoopResultBuilder]: For program point L91(lines 91 92) no Hoare annotation was computed. [2021-10-21 19:09:37,750 INFO L857 garLoopResultBuilder]: For program point L141(lines 141 150) no Hoare annotation was computed. [2021-10-21 19:09:37,751 INFO L857 garLoopResultBuilder]: For program point L141-2(lines 141 150) no Hoare annotation was computed. [2021-10-21 19:09:37,751 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 76) no Hoare annotation was computed. [2021-10-21 19:09:37,751 INFO L857 garLoopResultBuilder]: For program point L59-2(lines 46 131) no Hoare annotation was computed. [2021-10-21 19:09:37,751 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-10-21 19:09:37,752 INFO L853 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: (and (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_exp~0) (= currentRoundingMode roundNearestTiesToEven) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53))) [2021-10-21 19:09:37,752 INFO L857 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-10-21 19:09:37,753 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-10-21 19:09:37,753 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 102 116) no Hoare annotation was computed. [2021-10-21 19:09:37,753 INFO L857 garLoopResultBuilder]: For program point L109-2(lines 109 114) no Hoare annotation was computed. [2021-10-21 19:09:37,760 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:09:37,771 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:09:37,777 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:09:37,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-21 19:09:37,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-21 19:09:37,780 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:09:37,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-21 19:09:37,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-21 19:09:37,782 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:09:37,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:09:37 BoogieIcfgContainer [2021-10-21 19:09:37,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:09:37,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:09:37,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:09:37,785 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:09:37,785 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:07:49" (3/4) ... [2021-10-21 19:09:37,789 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:09:37,812 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-21 19:09:37,812 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-21 19:09:37,813 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:09:37,814 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:09:37,842 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE()) [2021-10-21 19:09:37,899 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:09:37,900 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:09:37,902 INFO L168 Benchmark]: Toolchain (without parser) took 125058.27 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 35.7 MB in the beginning and 54.7 MB in the end (delta: -19.0 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:37,902 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:09:37,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.69 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 35.4 MB in the beginning and 61.4 MB in the end (delta: -26.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:37,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.02 ms. Allocated memory is still 81.8 MB. Free memory was 61.4 MB in the beginning and 59.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:37,904 INFO L168 Benchmark]: Boogie Preprocessor took 89.13 ms. Allocated memory is still 81.8 MB. Free memory was 59.4 MB in the beginning and 57.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:37,905 INFO L168 Benchmark]: RCFGBuilder took 15854.76 ms. Allocated memory is still 81.8 MB. Free memory was 57.3 MB in the beginning and 59.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:37,905 INFO L168 Benchmark]: TraceAbstraction took 108286.41 ms. Allocated memory is still 81.8 MB. Free memory was 58.5 MB in the beginning and 33.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:37,906 INFO L168 Benchmark]: Witness Printer took 115.85 ms. Allocated memory is still 81.8 MB. Free memory was 33.2 MB in the beginning and 54.7 MB in the end (delta: -21.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:37,909 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 631.69 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 35.4 MB in the beginning and 61.4 MB in the end (delta: -26.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.02 ms. Allocated memory is still 81.8 MB. Free memory was 61.4 MB in the beginning and 59.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.13 ms. Allocated memory is still 81.8 MB. Free memory was 59.4 MB in the beginning and 57.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 15854.76 ms. Allocated memory is still 81.8 MB. Free memory was 57.3 MB in the beginning and 59.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 108286.41 ms. Allocated memory is still 81.8 MB. Free memory was 58.5 MB in the beginning and 33.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. * Witness Printer took 115.85 ms. Allocated memory is still 81.8 MB. Free memory was 33.2 MB in the beginning and 54.7 MB in the end (delta: -21.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 147]: 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, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 108186.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 14.9ms, AutomataDifference: 63664.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1243.9ms, InitialAbstractionConstructionTime: 13.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 106 SDtfs, 73 SDslu, 148 SDs, 0 SdLazy, 42 SolverSat, 5 SolverUnsat, 21 SolverUnknown, 0 SolverNotchecked, 57478.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 19063.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 34.1ms AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 46 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 56.2ms HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1179.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 95.2ms SsaConstructionTime, 4004.3ms SatisfiabilityAnalysisTime, 37914.2ms InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 94 ConstructedInterpolants, 10 QuantifiedInterpolants, 578 SizeOfPredicates, 21 NumberOfNonLiveVariables, 341 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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: 51]: Loop Invariant [2021-10-21 19:09:37,919 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:09:37,920 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_exp) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 46]: Loop Invariant [2021-10-21 19:09:37,921 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-21 19:09:37,921 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-21 19:09:37,921 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:09:37,922 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-21 19:09:37,922 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-21 19:09:37,922 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-21 19:09:38,142 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-21 19:09:38,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9be8a930-0dec-4cf3-a375-22190923f332/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...