./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0680b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0680b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer --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 fde0eb35cf23814e4040eccb9c957e33daaeadbf ................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0680b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer --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 fde0eb35cf23814e4040eccb9c957e33daaeadbf ........................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:19:19,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:19:19,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:19:20,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:19:20,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:19:20,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:19:20,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:19:20,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:19:20,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:19:20,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:19:20,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:19:20,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:19:20,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:19:20,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:19:20,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:19:20,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:19:20,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:19:20,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:19:20,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:19:20,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:19:20,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:19:20,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:19:20,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:19:20,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:19:20,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:19:20,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:19:20,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:19:20,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:19:20,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:19:20,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:19:20,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:19:20,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:19:20,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:19:20,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:19:20,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:19:20,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:19:20,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:19:20,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:19:20,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:19:20,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:19:20,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:19:20,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:19:20,213 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:19:20,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:19:20,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:19:20,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:19:20,220 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:19:20,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:19:20,221 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:19:20,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:19:20,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:19:20,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:19:20,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:19:20,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:19:20,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:19:20,224 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:19:20,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:19:20,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:19:20,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:19:20,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:19:20,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:19:20,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:19:20,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:19:20,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:19:20,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:19:20,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:19:20,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:19:20,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:19:20,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:19:20,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:19:20,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:19:20,229 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-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fde0eb35cf23814e4040eccb9c957e33daaeadbf [2020-11-29 18:19:20,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:19:20,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:19:20,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:19:20,631 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:19:20,634 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:19:20,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0680b.c [2020-11-29 18:19:20,736 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/data/86540f257/42a066eeca00492ebcd473060db15055/FLAG10cec4638 [2020-11-29 18:19:21,438 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:19:21,439 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/sv-benchmarks/c/float-newlib/double_req_bl_0680b.c [2020-11-29 18:19:21,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/data/86540f257/42a066eeca00492ebcd473060db15055/FLAG10cec4638 [2020-11-29 18:19:21,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/data/86540f257/42a066eeca00492ebcd473060db15055 [2020-11-29 18:19:21,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:19:21,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:19:21,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:19:21,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:19:21,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:19:21,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:19:21" (1/1) ... [2020-11-29 18:19:21,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f72a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:21, skipping insertion in model container [2020-11-29 18:19:21,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:19:21" (1/1) ... [2020-11-29 18:19:21,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:19:21,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:19:22,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:19:22,187 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:19:22,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:19:22,310 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:19:22,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:22 WrapperNode [2020-11-29 18:19:22,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:19:22,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:19:22,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:19:22,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:19:22,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:22" (1/1) ... [2020-11-29 18:19:22,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:22" (1/1) ... [2020-11-29 18:19:22,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:19:22,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:19:22,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:19:22,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:19:22,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:22" (1/1) ... [2020-11-29 18:19:22,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:22" (1/1) ... [2020-11-29 18:19:22,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:22" (1/1) ... [2020-11-29 18:19:22,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:22" (1/1) ... [2020-11-29 18:19:22,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:22" (1/1) ... [2020-11-29 18:19:22,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:22" (1/1) ... [2020-11-29 18:19:22,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:22" (1/1) ... [2020-11-29 18:19:22,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:19:22,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:19:22,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:19:22,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:19:22,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:19:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:19:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:19:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 18:19:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 18:19:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 18:19:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:19:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:19:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 18:19:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-29 18:19:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:19:23,778 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:19:23,779 INFO L298 CfgBuilder]: Removed 46 assume(true) statements. [2020-11-29 18:19:23,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:19:23 BoogieIcfgContainer [2020-11-29 18:19:23,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:19:23,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:19:23,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:19:23,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:19:23,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:19:21" (1/3) ... [2020-11-29 18:19:23,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b24c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:19:23, skipping insertion in model container [2020-11-29 18:19:23,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:22" (2/3) ... [2020-11-29 18:19:23,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b24c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:19:23, skipping insertion in model container [2020-11-29 18:19:23,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:19:23" (3/3) ... [2020-11-29 18:19:23,792 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680b.c [2020-11-29 18:19:23,805 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:19:23,811 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 18:19:23,826 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 18:19:23,856 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:19:23,857 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:19:23,857 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:19:23,857 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:19:23,857 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:19:23,857 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:19:23,858 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:19:23,858 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:19:23,878 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-11-29 18:19:23,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 18:19:23,884 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:19:23,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:19:23,886 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:19:23,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:19:23,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2020-11-29 18:19:23,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:19:23,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477463263] [2020-11-29 18:19:23,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:19:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:19:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:19:24,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477463263] [2020-11-29 18:19:24,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:19:24,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:19:24,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124559913] [2020-11-29 18:19:24,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:19:24,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:19:24,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:19:24,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:19:24,157 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 2 states. [2020-11-29 18:19:24,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:19:24,194 INFO L93 Difference]: Finished difference Result 225 states and 379 transitions. [2020-11-29 18:19:24,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:19:24,196 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 18:19:24,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:19:24,209 INFO L225 Difference]: With dead ends: 225 [2020-11-29 18:19:24,209 INFO L226 Difference]: Without dead ends: 110 [2020-11-29 18:19:24,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:19:24,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-11-29 18:19:24,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-11-29 18:19:24,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-11-29 18:19:24,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2020-11-29 18:19:24,266 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2020-11-29 18:19:24,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:19:24,266 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2020-11-29 18:19:24,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:19:24,267 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2020-11-29 18:19:24,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 18:19:24,268 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:19:24,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:19:24,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:19:24,268 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:19:24,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:19:24,270 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2020-11-29 18:19:24,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:19:24,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440184036] [2020-11-29 18:19:24,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:19:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:19:24,402 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:19:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:19:24,500 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:19:24,537 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:19:24,538 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:19:24,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:19:24,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:19:24 BoogieIcfgContainer [2020-11-29 18:19:24,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:19:24,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:19:24,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:19:24,595 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:19:24,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:19:23" (3/4) ... [2020-11-29 18:19:24,599 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:19:24,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:19:24,603 INFO L168 Benchmark]: Toolchain (without parser) took 2804.66 ms. Allocated memory is still 94.4 MB. Free memory was 64.9 MB in the beginning and 42.0 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:24,605 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory was 35.2 MB in the beginning and 35.1 MB in the end (delta: 37.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:19:24,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.84 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 66.9 MB in the end (delta: -2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:24,608 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.01 ms. Allocated memory is still 94.4 MB. Free memory was 66.9 MB in the beginning and 63.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:24,608 INFO L168 Benchmark]: Boogie Preprocessor took 137.57 ms. Allocated memory is still 94.4 MB. Free memory was 63.3 MB in the beginning and 59.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:24,610 INFO L168 Benchmark]: RCFGBuilder took 1200.95 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 46.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:24,612 INFO L168 Benchmark]: TraceAbstraction took 809.74 ms. Allocated memory is still 94.4 MB. Free memory was 45.5 MB in the beginning and 42.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:24,613 INFO L168 Benchmark]: Witness Printer took 5.98 ms. Allocated memory is still 94.4 MB. Free memory was 42.6 MB in the beginning and 42.0 MB in the end (delta: 615.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:19:24,628 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 77.6 MB. Free memory was 35.2 MB in the beginning and 35.1 MB in the end (delta: 37.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 493.84 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 66.9 MB in the end (delta: -2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 125.01 ms. Allocated memory is still 94.4 MB. Free memory was 66.9 MB in the beginning and 63.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 137.57 ms. Allocated memory is still 94.4 MB. Free memory was 63.3 MB in the beginning and 59.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1200.95 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 46.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 809.74 ms. Allocated memory is still 94.4 MB. Free memory was 45.5 MB in the beginning and 42.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.98 ms. Allocated memory is still 94.4 MB. Free memory was 42.6 MB in the beginning and 42.0 MB in the end (delta: 615.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 253, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 257. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L253] double x = -0.0; [L254] double y = 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != pi VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L3] __assert_fail("0", "double_req_bl_0680b.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 114 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:19:27,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:19:27,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:19:27,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:19:27,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:19:27,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:19:27,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:19:27,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:19:27,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:19:27,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:19:27,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:19:27,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:19:27,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:19:27,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:19:27,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:19:27,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:19:27,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:19:27,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:19:27,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:19:27,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:19:27,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:19:27,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:19:27,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:19:27,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:19:27,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:19:27,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:19:27,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:19:27,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:19:27,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:19:27,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:19:27,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:19:27,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:19:27,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:19:27,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:19:27,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:19:27,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:19:27,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:19:27,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:19:27,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:19:27,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:19:27,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:19:27,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 18:19:27,887 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:19:27,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:19:27,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:19:27,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:19:27,892 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:19:27,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:19:27,893 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:19:27,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:19:27,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:19:27,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:19:27,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:19:27,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:19:27,896 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 18:19:27,896 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 18:19:27,896 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:19:27,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:19:27,897 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:19:27,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:19:27,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:19:27,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:19:27,898 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:19:27,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:19:27,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:19:27,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:19:27,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:19:27,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:19:27,901 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 18:19:27,901 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 18:19:27,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:19:27,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:19:27,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 18:19:27,903 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-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fde0eb35cf23814e4040eccb9c957e33daaeadbf [2020-11-29 18:19:28,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:19:28,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:19:28,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:19:28,441 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:19:28,442 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:19:28,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0680b.c [2020-11-29 18:19:28,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/data/1c5a17b4b/4184d21ac4da4a4996424b64bf009ef7/FLAG5470fc758 [2020-11-29 18:19:29,174 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:19:29,175 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/sv-benchmarks/c/float-newlib/double_req_bl_0680b.c [2020-11-29 18:19:29,186 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/data/1c5a17b4b/4184d21ac4da4a4996424b64bf009ef7/FLAG5470fc758 [2020-11-29 18:19:29,509 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/data/1c5a17b4b/4184d21ac4da4a4996424b64bf009ef7 [2020-11-29 18:19:29,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:19:29,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:19:29,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:19:29,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:19:29,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:19:29,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:19:29" (1/1) ... [2020-11-29 18:19:29,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10cc332f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:29, skipping insertion in model container [2020-11-29 18:19:29,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:19:29" (1/1) ... [2020-11-29 18:19:29,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:19:29,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:19:29,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:19:29,901 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:19:29,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:19:30,019 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:19:30,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:30 WrapperNode [2020-11-29 18:19:30,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:19:30,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:19:30,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:19:30,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:19:30,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:30" (1/1) ... [2020-11-29 18:19:30,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:30" (1/1) ... [2020-11-29 18:19:30,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:19:30,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:19:30,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:19:30,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:19:30,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:30" (1/1) ... [2020-11-29 18:19:30,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:30" (1/1) ... [2020-11-29 18:19:30,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:30" (1/1) ... [2020-11-29 18:19:30,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:30" (1/1) ... [2020-11-29 18:19:30,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:30" (1/1) ... [2020-11-29 18:19:30,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:30" (1/1) ... [2020-11-29 18:19:30,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:30" (1/1) ... [2020-11-29 18:19:30,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:19:30,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:19:30,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:19:30,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:19:30,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:19:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-29 18:19:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-29 18:19:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 18:19:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:19:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-11-29 18:19:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 18:19:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:19:30,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:19:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 18:19:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:20:12,025 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:20:12,026 INFO L298 CfgBuilder]: Removed 46 assume(true) statements. [2020-11-29 18:20:12,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:12 BoogieIcfgContainer [2020-11-29 18:20:12,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:20:12,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:20:12,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:20:12,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:20:12,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:19:29" (1/3) ... [2020-11-29 18:20:12,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0ee869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:20:12, skipping insertion in model container [2020-11-29 18:20:12,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:19:30" (2/3) ... [2020-11-29 18:20:12,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0ee869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:20:12, skipping insertion in model container [2020-11-29 18:20:12,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:12" (3/3) ... [2020-11-29 18:20:12,039 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680b.c [2020-11-29 18:20:12,053 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:20:12,058 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 18:20:12,073 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 18:20:12,116 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:20:12,116 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:20:12,117 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:20:12,117 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:20:12,118 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:20:12,118 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:20:12,119 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:20:12,119 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:20:12,142 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-11-29 18:20:12,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 18:20:12,149 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:12,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:12,150 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:12,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:12,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2020-11-29 18:20:12,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:20:12,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386918212] [2020-11-29 18:20:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 18:20:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:12,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 18:20:12,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:12,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:12,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:20:12,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:12,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386918212] [2020-11-29 18:20:12,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:12,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 18:20:12,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743229486] [2020-11-29 18:20:12,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:20:12,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:20:12,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:20:12,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:20:12,735 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 2 states. [2020-11-29 18:20:12,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:12,773 INFO L93 Difference]: Finished difference Result 225 states and 379 transitions. [2020-11-29 18:20:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:20:12,775 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 18:20:12,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:12,788 INFO L225 Difference]: With dead ends: 225 [2020-11-29 18:20:12,789 INFO L226 Difference]: Without dead ends: 110 [2020-11-29 18:20:12,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:20:12,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-11-29 18:20:12,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-11-29 18:20:12,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-11-29 18:20:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2020-11-29 18:20:12,846 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2020-11-29 18:20:12,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:12,847 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2020-11-29 18:20:12,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:20:12,848 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2020-11-29 18:20:12,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 18:20:12,849 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:12,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:13,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 18:20:13,066 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:13,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:13,067 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2020-11-29 18:20:13,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:20:13,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740091828] [2020-11-29 18:20:13,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 18:20:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:13,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 18:20:13,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:20:13,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:13,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:20:14,205 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:20:14,565 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:20:14,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:14,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740091828] [2020-11-29 18:20:14,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:14,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-11-29 18:20:14,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256527013] [2020-11-29 18:20:14,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 18:20:14,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:20:14,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 18:20:14,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-11-29 18:20:14,835 INFO L87 Difference]: Start difference. First operand 110 states and 158 transitions. Second operand 12 states. [2020-11-29 18:20:18,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:18,207 INFO L93 Difference]: Finished difference Result 161 states and 226 transitions. [2020-11-29 18:20:18,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:20:18,208 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 12 [2020-11-29 18:20:18,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:20:18,210 INFO L225 Difference]: With dead ends: 161 [2020-11-29 18:20:18,211 INFO L226 Difference]: Without dead ends: 71 [2020-11-29 18:20:18,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-11-29 18:20:18,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-29 18:20:18,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-29 18:20:18,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-29 18:20:18,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 93 transitions. [2020-11-29 18:20:18,227 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 93 transitions. Word has length 12 [2020-11-29 18:20:18,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:20:18,228 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 93 transitions. [2020-11-29 18:20:18,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 18:20:18,228 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 93 transitions. [2020-11-29 18:20:18,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:20:18,230 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:20:18,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:18,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 18:20:18,435 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:20:18,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:18,436 INFO L82 PathProgramCache]: Analyzing trace with hash 810615587, now seen corresponding path program 1 times [2020-11-29 18:20:18,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:20:18,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324783111] [2020-11-29 18:20:18,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 18:20:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:19,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:20,510 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:20,691 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 18:20:20,692 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:20:20,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 18:20:20,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:20:20 BoogieIcfgContainer [2020-11-29 18:20:20,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:20:20,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:20:20,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:20:20,999 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:20:21,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:12" (3/4) ... [2020-11-29 18:20:21,011 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 18:20:21,136 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_00a113f2-66b9-4cf7-a934-5ddfb83f7704/bin/uautomizer/witness.graphml [2020-11-29 18:20:21,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:20:21,138 INFO L168 Benchmark]: Toolchain (without parser) took 51622.97 ms. Allocated memory is still 90.2 MB. Free memory was 73.1 MB in the beginning and 58.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:21,139 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 58.7 MB. Free memory is still 41.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:20:21,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.36 ms. Allocated memory is still 90.2 MB. Free memory was 72.9 MB in the beginning and 68.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:21,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.67 ms. Allocated memory is still 90.2 MB. Free memory was 68.4 MB in the beginning and 64.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:21,142 INFO L168 Benchmark]: Boogie Preprocessor took 82.23 ms. Allocated memory is still 90.2 MB. Free memory was 64.7 MB in the beginning and 60.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:21,142 INFO L168 Benchmark]: RCFGBuilder took 41796.73 ms. Allocated memory is still 90.2 MB. Free memory was 60.8 MB in the beginning and 60.2 MB in the end (delta: 676.4 kB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:21,143 INFO L168 Benchmark]: TraceAbstraction took 8967.76 ms. Allocated memory is still 90.2 MB. Free memory was 59.7 MB in the beginning and 64.0 MB in the end (delta: -4.3 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:21,144 INFO L168 Benchmark]: Witness Printer took 137.30 ms. Allocated memory is still 90.2 MB. Free memory was 64.0 MB in the beginning and 58.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:20:21,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 58.7 MB. Free memory is still 41.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 504.36 ms. Allocated memory is still 90.2 MB. Free memory was 72.9 MB in the beginning and 68.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 126.67 ms. Allocated memory is still 90.2 MB. Free memory was 68.4 MB in the beginning and 64.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.23 ms. Allocated memory is still 90.2 MB. Free memory was 64.7 MB in the beginning and 60.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 41796.73 ms. Allocated memory is still 90.2 MB. Free memory was 60.8 MB in the beginning and 60.2 MB in the end (delta: 676.4 kB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8967.76 ms. Allocated memory is still 90.2 MB. Free memory was 59.7 MB in the beginning and 64.0 MB in the end (delta: -4.3 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. * Witness Printer took 137.30 ms. Allocated memory is still 90.2 MB. Free memory was 64.0 MB in the beginning and 58.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L253] double x = -0.0; [L254] double y = 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L163-L164] COND FALSE !(((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000)) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L166] COND FALSE !(((hx - 0x3ff00000) | lx) == 0) [L168] m = ((hy >> 31) & 1) | ((hx >> 30) & 2) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L170] COND FALSE !((iy | ly) == 0) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L182] COND TRUE (ix | lx) == 0 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L183] EXPR (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L183] return (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2; [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != pi VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L3] __assert_fail("0", "double_req_bl_0680b.c", 3, "reach_error") VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 114 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 238 SDtfs, 613 SDslu, 14 SDs, 0 SdLazy, 31 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 13 QuantifiedInterpolants, 4947 SizeOfPredicates, 16 NumberOfNonLiveVariables, 254 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...