./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.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_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/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 b42939eee3e11712ad53342d1b2656dec849a2d0 ..................................................................................................................................................................................................................................................................................................... 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_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/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 b42939eee3e11712ad53342d1b2656dec849a2d0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:03:55,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:03:55,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:03:55,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:03:55,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:03:55,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:03:55,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:03:55,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:03:55,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:03:55,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:03:55,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:03:55,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:03:55,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:03:55,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:03:55,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:03:55,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:03:55,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:03:55,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:03:55,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:03:55,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:03:55,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:03:55,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:03:55,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:03:55,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:03:55,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:03:55,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:03:55,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:03:55,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:03:55,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:03:55,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:03:55,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:03:55,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:03:55,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:03:55,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:03:55,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:03:55,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:03:55,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:03:55,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:03:55,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:03:55,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:03:55,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:03:55,637 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:03:55,682 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:03:55,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:03:55,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:03:55,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:03:55,685 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:03:55,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:03:55,685 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:03:55,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:03:55,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:03:55,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:03:55,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:03:55,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:03:55,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:03:55,688 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:03:55,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:03:55,688 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:03:55,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:03:55,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:03:55,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:03:55,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:03:55,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:03:55,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:03:55,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:03:55,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:03:55,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:03:55,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:03:55,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:03:55,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:03:55,691 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:03:55,692 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_1d816c9a-c47c-4bb2-9f42-2974395980ae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b42939eee3e11712ad53342d1b2656dec849a2d0 [2020-11-30 01:03:55,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:03:55,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:03:55,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:03:55,972 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:03:55,973 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:03:55,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2020-11-30 01:03:56,053 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/data/3e97e33cd/517094103bde44cca0abd4829ccb03d2/FLAGdeb5c2f53 [2020-11-30 01:03:56,533 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:03:56,534 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2020-11-30 01:03:56,541 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/data/3e97e33cd/517094103bde44cca0abd4829ccb03d2/FLAGdeb5c2f53 [2020-11-30 01:03:56,892 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/data/3e97e33cd/517094103bde44cca0abd4829ccb03d2 [2020-11-30 01:03:56,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:03:56,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:03:56,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:03:56,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:03:56,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:03:56,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:03:56" (1/1) ... [2020-11-30 01:03:56,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6b7953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:03:56, skipping insertion in model container [2020-11-30 01:03:56,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:03:56" (1/1) ... [2020-11-30 01:03:56,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:03:56,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:03:57,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:03:57,149 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:03:57,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:03:57,191 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:03:57,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:03:57 WrapperNode [2020-11-30 01:03:57,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:03:57,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:03:57,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:03:57,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:03:57,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:03:57" (1/1) ... [2020-11-30 01:03:57,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:03:57" (1/1) ... [2020-11-30 01:03:57,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:03:57,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:03:57,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:03:57,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:03:57,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:03:57" (1/1) ... [2020-11-30 01:03:57,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:03:57" (1/1) ... [2020-11-30 01:03:57,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:03:57" (1/1) ... [2020-11-30 01:03:57,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:03:57" (1/1) ... [2020-11-30 01:03:57,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:03:57" (1/1) ... [2020-11-30 01:03:57,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:03:57" (1/1) ... [2020-11-30 01:03:57,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:03:57" (1/1) ... [2020-11-30 01:03:57,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:03:57,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:03:57,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:03:57,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:03:57,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:03:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/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 [2020-11-30 01:03:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:03:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:03:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 01:03:57,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:03:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 01:03:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:03:57,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:03:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:03:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:03:57,739 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:03:57,740 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-30 01:03:57,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:03:57 BoogieIcfgContainer [2020-11-30 01:03:57,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:03:57,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:03:57,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:03:57,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:03:57,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:03:56" (1/3) ... [2020-11-30 01:03:57,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f41f586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:03:57, skipping insertion in model container [2020-11-30 01:03:57,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:03:57" (2/3) ... [2020-11-30 01:03:57,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f41f586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:03:57, skipping insertion in model container [2020-11-30 01:03:57,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:03:57" (3/3) ... [2020-11-30 01:03:57,751 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2020-11-30 01:03:57,762 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:03:57,774 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:03:57,787 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:03:57,815 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:03:57,815 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:03:57,815 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:03:57,815 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:03:57,816 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:03:57,816 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:03:57,816 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:03:57,816 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:03:57,830 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-11-30 01:03:57,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:03:57,836 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:03:57,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:03:57,837 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:03:57,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:03:57,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2020-11-30 01:03:57,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:03:57,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225477730] [2020-11-30 01:03:57,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:03:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:03:58,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:03:58,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225477730] [2020-11-30 01:03:58,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:03:58,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:03:58,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925801598] [2020-11-30 01:03:58,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:03:58,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:03:58,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:03:58,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:03:58,062 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2020-11-30 01:03:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:03:58,090 INFO L93 Difference]: Finished difference Result 67 states and 105 transitions. [2020-11-30 01:03:58,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:03:58,092 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-30 01:03:58,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:03:58,120 INFO L225 Difference]: With dead ends: 67 [2020-11-30 01:03:58,120 INFO L226 Difference]: Without dead ends: 31 [2020-11-30 01:03:58,123 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 [2020-11-30 01:03:58,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-30 01:03:58,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-30 01:03:58,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-30 01:03:58,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-11-30 01:03:58,153 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2020-11-30 01:03:58,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:03:58,154 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-11-30 01:03:58,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:03:58,154 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-11-30 01:03:58,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:03:58,155 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:03:58,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:03:58,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:03:58,156 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:03:58,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:03:58,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2020-11-30 01:03:58,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:03:58,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879892418] [2020-11-30 01:03:58,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:03:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:03:58,216 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:03:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:03:58,254 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:03:58,280 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:03:58,280 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:03:58,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:03:58,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:03:58 BoogieIcfgContainer [2020-11-30 01:03:58,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:03:58,314 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:03:58,314 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:03:58,314 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:03:58,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:03:57" (3/4) ... [2020-11-30 01:03:58,317 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:03:58,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:03:58,319 INFO L168 Benchmark]: Toolchain (without parser) took 1422.57 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 64.0 MB in the beginning and 81.4 MB in the end (delta: -17.5 MB). Peak memory consumption was 1.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:58,320 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory was 54.9 MB in the beginning and 54.9 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:03:58,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.35 ms. Allocated memory is still 94.4 MB. Free memory was 63.7 MB in the beginning and 70.6 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:58,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.49 ms. Allocated memory is still 94.4 MB. Free memory was 70.6 MB in the beginning and 68.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:58,323 INFO L168 Benchmark]: Boogie Preprocessor took 32.09 ms. Allocated memory is still 94.4 MB. Free memory was 68.5 MB in the beginning and 67.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:03:58,323 INFO L168 Benchmark]: RCFGBuilder took 474.64 ms. Allocated memory is still 94.4 MB. Free memory was 67.1 MB in the beginning and 47.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:03:58,324 INFO L168 Benchmark]: TraceAbstraction took 569.53 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 46.6 MB in the beginning and 82.1 MB in the end (delta: -35.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:03:58,325 INFO L168 Benchmark]: Witness Printer took 3.84 ms. Allocated memory is still 113.2 MB. Free memory is still 81.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:03:58,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory was 54.9 MB in the beginning and 54.9 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.35 ms. Allocated memory is still 94.4 MB. Free memory was 63.7 MB in the beginning and 70.6 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.49 ms. Allocated memory is still 94.4 MB. Free memory was 70.6 MB in the beginning and 68.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.09 ms. Allocated memory is still 94.4 MB. Free memory was 68.5 MB in the beginning and 67.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 474.64 ms. Allocated memory is still 94.4 MB. Free memory was 67.1 MB in the beginning and 47.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 569.53 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 46.6 MB in the beginning and 82.1 MB in the end (delta: -35.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.84 ms. Allocated memory is still 113.2 MB. Free memory is still 81.4 MB. There was no memory consumed. 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 shiftRight at line 39, overapproximation of bitwiseOr at line 40, overapproximation of someBinaryArithmeticDOUBLEoperation at line 90, overapproximation of bitwiseAnd at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 82. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L90] double x = 0.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND FALSE !(j0 < 0) [L39] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L40] COND TRUE ((i0 & i) | i1) == 0 [L41] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double res = floor_double(x); [L82] return x != x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1051.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 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=35occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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 [2020-11-30 01:04:00,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:04:00,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:04:00,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:04:00,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:04:00,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:04:00,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:04:00,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:04:00,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:04:00,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:04:00,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:04:01,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:04:01,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:04:01,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:04:01,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:04:01,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:04:01,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:04:01,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:04:01,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:04:01,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:04:01,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:04:01,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:04:01,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:04:01,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:04:01,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:04:01,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:04:01,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:04:01,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:04:01,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:04:01,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:04:01,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:04:01,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:04:01,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:04:01,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:04:01,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:04:01,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:04:01,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:04:01,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:04:01,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:04:01,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:04:01,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:04:01,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 01:04:01,110 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:04:01,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:04:01,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:04:01,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:04:01,114 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:04:01,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:04:01,115 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:04:01,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:04:01,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:04:01,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:04:01,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:04:01,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:04:01,117 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:04:01,117 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:04:01,117 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:04:01,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:04:01,118 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:04:01,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:04:01,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:04:01,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:04:01,118 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:04:01,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:04:01,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:04:01,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:04:01,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:04:01,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:04:01,120 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 01:04:01,120 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:04:01,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:04:01,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:04:01,121 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:04:01,121 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_1d816c9a-c47c-4bb2-9f42-2974395980ae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b42939eee3e11712ad53342d1b2656dec849a2d0 [2020-11-30 01:04:01,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:04:01,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:04:01,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:04:01,572 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:04:01,573 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:04:01,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2020-11-30 01:04:01,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/data/07cd1d407/815405f2c4cc41589b7138308ae3b65e/FLAGe3771fa4b [2020-11-30 01:04:02,222 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:04:02,223 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2020-11-30 01:04:02,234 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/data/07cd1d407/815405f2c4cc41589b7138308ae3b65e/FLAGe3771fa4b [2020-11-30 01:04:02,546 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/data/07cd1d407/815405f2c4cc41589b7138308ae3b65e [2020-11-30 01:04:02,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:04:02,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:04:02,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:04:02,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:04:02,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:04:02,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:04:02" (1/1) ... [2020-11-30 01:04:02,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@595299c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:02, skipping insertion in model container [2020-11-30 01:04:02,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:04:02" (1/1) ... [2020-11-30 01:04:02,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:04:02,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:04:02,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:04:02,773 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:04:02,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:04:02,876 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:04:02,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:02 WrapperNode [2020-11-30 01:04:02,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:04:02,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:04:02,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:04:02,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:04:02,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:02" (1/1) ... [2020-11-30 01:04:02,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:02" (1/1) ... [2020-11-30 01:04:02,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:04:02,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:04:02,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:04:02,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:04:02,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:02" (1/1) ... [2020-11-30 01:04:02,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:02" (1/1) ... [2020-11-30 01:04:02,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:02" (1/1) ... [2020-11-30 01:04:02,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:02" (1/1) ... [2020-11-30 01:04:02,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:02" (1/1) ... [2020-11-30 01:04:02,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:02" (1/1) ... [2020-11-30 01:04:02,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:02" (1/1) ... [2020-11-30 01:04:02,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:04:02,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:04:02,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:04:02,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:04:02,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/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 [2020-11-30 01:04:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-30 01:04:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-30 01:04:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:04:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:04:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:04:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:04:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:04:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:04:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:04:04,786 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:04:04,787 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-30 01:04:04,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:04:04 BoogieIcfgContainer [2020-11-30 01:04:04,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:04:04,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:04:04,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:04:04,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:04:04,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:04:02" (1/3) ... [2020-11-30 01:04:04,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5014bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:04:04, skipping insertion in model container [2020-11-30 01:04:04,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:04:02" (2/3) ... [2020-11-30 01:04:04,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5014bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:04:04, skipping insertion in model container [2020-11-30 01:04:04,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:04:04" (3/3) ... [2020-11-30 01:04:04,798 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2020-11-30 01:04:04,823 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:04:04,828 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:04:04,841 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:04:04,868 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:04:04,868 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:04:04,868 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:04:04,868 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:04:04,869 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:04:04,869 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:04:04,869 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:04:04,869 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:04:04,884 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-11-30 01:04:04,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:04:04,890 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:04,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:04,891 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:04,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:04,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2020-11-30 01:04:04,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:04:04,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616421988] [2020-11-30 01:04:04,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/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 [2020-11-30 01:04:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:05,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:04:05,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:05,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:05,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:04:05,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:05,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616421988] [2020-11-30 01:04:05,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:05,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:04:05,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726646976] [2020-11-30 01:04:05,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:04:05,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:04:05,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:04:05,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:04:05,128 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2020-11-30 01:04:05,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:05,169 INFO L93 Difference]: Finished difference Result 67 states and 105 transitions. [2020-11-30 01:04:05,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:04:05,171 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-30 01:04:05,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:05,182 INFO L225 Difference]: With dead ends: 67 [2020-11-30 01:04:05,183 INFO L226 Difference]: Without dead ends: 31 [2020-11-30 01:04:05,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:04:05,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-30 01:04:05,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-30 01:04:05,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-30 01:04:05,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-11-30 01:04:05,228 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2020-11-30 01:04:05,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:05,229 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-11-30 01:04:05,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:04:05,230 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-11-30 01:04:05,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:04:05,231 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:05,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:05,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:04:05,455 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:05,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:05,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2020-11-30 01:04:05,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:04:05,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341793895] [2020-11-30 01:04:05,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/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 [2020-11-30 01:04:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:05,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 01:04:05,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:05,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:05,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:04:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:05,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341793895] [2020-11-30 01:04:05,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:05,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 01:04:05,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466333190] [2020-11-30 01:04:05,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:04:05,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:04:05,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:04:05,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:04:05,899 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 10 states. [2020-11-30 01:04:07,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:07,538 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2020-11-30 01:04:07,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:04:07,543 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-11-30 01:04:07,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:07,543 INFO L225 Difference]: With dead ends: 42 [2020-11-30 01:04:07,544 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 01:04:07,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-11-30 01:04:07,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 01:04:07,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-30 01:04:07,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 01:04:07,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-30 01:04:07,560 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2020-11-30 01:04:07,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:07,561 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-30 01:04:07,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:04:07,561 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-30 01:04:07,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:04:07,562 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:07,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:07,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:04:07,777 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:07,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:07,778 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2020-11-30 01:04:07,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:04:07,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953390980] [2020-11-30 01:04:07,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/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 [2020-11-30 01:04:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:07,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:04:07,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:08,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:04:08,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:08,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953390980] [2020-11-30 01:04:08,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:08,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 01:04:08,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87375071] [2020-11-30 01:04:08,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:04:08,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:04:08,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:04:08,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:04:08,265 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2020-11-30 01:04:08,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:08,528 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-11-30 01:04:08,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:04:08,529 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-30 01:04:08,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:08,529 INFO L225 Difference]: With dead ends: 21 [2020-11-30 01:04:08,529 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:04:08,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:04:08,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:04:08,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:04:08,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:04:08,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:04:08,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-30 01:04:08,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:08,531 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:04:08,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:04:08,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:04:08,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:04:08,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:04:08,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:04:08,918 INFO L274 CegarLoopResult]: For program point L60(lines 60 67) no Hoare annotation was computed. [2020-11-30 01:04:08,918 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 01:04:08,918 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 01:04:08,918 INFO L274 CegarLoopResult]: For program point L94(lines 94 97) no Hoare annotation was computed. [2020-11-30 01:04:08,919 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:04:08,919 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:04:08,919 INFO L274 CegarLoopResult]: For program point L28(lines 28 71) no Hoare annotation was computed. [2020-11-30 01:04:08,919 INFO L270 CegarLoopResult]: At program point L78(lines 18 79) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_floor_double_~x)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start_floor_double_#res|))) [2020-11-30 01:04:08,919 INFO L274 CegarLoopResult]: For program point L29(lines 29 48) no Hoare annotation was computed. [2020-11-30 01:04:08,919 INFO L274 CegarLoopResult]: For program point L21-1(lines 21 26) no Hoare annotation was computed. [2020-11-30 01:04:08,919 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 26) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_floor_double_~x)) [2020-11-30 01:04:08,919 INFO L274 CegarLoopResult]: For program point L21-3(lines 21 26) no Hoare annotation was computed. [2020-11-30 01:04:08,920 INFO L274 CegarLoopResult]: For program point L30(lines 30 37) no Hoare annotation was computed. [2020-11-30 01:04:08,920 INFO L274 CegarLoopResult]: For program point L72(lines 72 77) no Hoare annotation was computed. [2020-11-30 01:04:08,920 INFO L274 CegarLoopResult]: For program point L72-1(lines 18 79) no Hoare annotation was computed. [2020-11-30 01:04:08,920 INFO L274 CegarLoopResult]: For program point L72-2(lines 72 77) no Hoare annotation was computed. [2020-11-30 01:04:08,920 INFO L274 CegarLoopResult]: For program point L64(lines 64 65) no Hoare annotation was computed. [2020-11-30 01:04:08,920 INFO L274 CegarLoopResult]: For program point L31(lines 31 36) no Hoare annotation was computed. [2020-11-30 01:04:08,920 INFO L274 CegarLoopResult]: For program point L64-2(lines 64 65) no Hoare annotation was computed. [2020-11-30 01:04:08,920 INFO L274 CegarLoopResult]: For program point L56(lines 56 57) no Hoare annotation was computed. [2020-11-30 01:04:08,920 INFO L274 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-11-30 01:04:08,920 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:04:08,921 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 01:04:08,921 INFO L270 CegarLoopResult]: At program point L82(line 82) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_floor_double_~x)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start_floor_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2020-11-30 01:04:08,921 INFO L274 CegarLoopResult]: For program point L49(lines 49 71) no Hoare annotation was computed. [2020-11-30 01:04:08,921 INFO L277 CegarLoopResult]: At program point L99(lines 84 100) the Hoare annotation is: true [2020-11-30 01:04:08,921 INFO L274 CegarLoopResult]: For program point L33(lines 33 36) no Hoare annotation was computed. [2020-11-30 01:04:08,921 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:04:08,921 INFO L274 CegarLoopResult]: For program point L58(lines 58 70) no Hoare annotation was computed. [2020-11-30 01:04:08,921 INFO L274 CegarLoopResult]: For program point L50(lines 50 53) no Hoare annotation was computed. [2020-11-30 01:04:08,921 INFO L274 CegarLoopResult]: For program point L42(lines 42 47) no Hoare annotation was computed. [2020-11-30 01:04:08,922 INFO L274 CegarLoopResult]: For program point L59(lines 59 68) no Hoare annotation was computed. [2020-11-30 01:04:08,922 INFO L274 CegarLoopResult]: For program point L59-1(lines 59 68) no Hoare annotation was computed. [2020-11-30 01:04:08,922 INFO L274 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2020-11-30 01:04:08,922 INFO L274 CegarLoopResult]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2020-11-30 01:04:08,928 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:08,928 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:08,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:08,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:08,937 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:08,937 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:08,938 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:08,938 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:08,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:08,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:08,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:04:08 BoogieIcfgContainer [2020-11-30 01:04:08,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:04:08,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:04:08,941 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:04:08,942 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:04:08,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:04:04" (3/4) ... [2020-11-30 01:04:08,945 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:04:08,956 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-30 01:04:08,957 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 01:04:08,957 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:04:08,957 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:04:08,982 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2020-11-30 01:04:08,983 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) [2020-11-30 01:04:08,984 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result)) && 1bv32 == \result [2020-11-30 01:04:09,014 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1d816c9a-c47c-4bb2-9f42-2974395980ae/bin/uautomizer/witness.graphml [2020-11-30 01:04:09,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:04:09,016 INFO L168 Benchmark]: Toolchain (without parser) took 6462.44 ms. Allocated memory was 81.8 MB in the beginning and 111.1 MB in the end (delta: 29.4 MB). Free memory was 60.3 MB in the beginning and 55.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:09,017 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 35.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:04:09,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.90 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 63.8 MB in the end (delta: -3.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:09,017 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.76 ms. Allocated memory is still 81.8 MB. Free memory was 63.8 MB in the beginning and 62.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:04:09,018 INFO L168 Benchmark]: Boogie Preprocessor took 38.74 ms. Allocated memory is still 81.8 MB. Free memory was 62.0 MB in the beginning and 60.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:09,018 INFO L168 Benchmark]: RCFGBuilder took 1824.18 ms. Allocated memory is still 81.8 MB. Free memory was 60.4 MB in the beginning and 39.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:09,019 INFO L168 Benchmark]: TraceAbstraction took 4150.42 ms. Allocated memory was 81.8 MB in the beginning and 111.1 MB in the end (delta: 29.4 MB). Free memory was 39.4 MB in the beginning and 59.8 MB in the end (delta: -20.4 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:09,019 INFO L168 Benchmark]: Witness Printer took 72.76 ms. Allocated memory is still 111.1 MB. Free memory was 59.3 MB in the beginning and 55.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:09,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 35.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 323.90 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 63.8 MB in the end (delta: -3.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.76 ms. Allocated memory is still 81.8 MB. Free memory was 63.8 MB in the beginning and 62.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.74 ms. Allocated memory is still 81.8 MB. Free memory was 62.0 MB in the beginning and 60.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1824.18 ms. Allocated memory is still 81.8 MB. Free memory was 60.4 MB in the beginning and 39.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4150.42 ms. Allocated memory was 81.8 MB in the beginning and 111.1 MB in the end (delta: 29.4 MB). Free memory was 39.4 MB in the beginning and 59.8 MB in the end (delta: -20.4 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Witness Printer took 72.76 ms. Allocated memory is still 111.1 MB. Free memory was 59.3 MB in the beginning and 55.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 82]: Loop Invariant [2020-11-30 01:04:09,040 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:09,040 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:09,041 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:09,041 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result)) && 1bv32 == \result - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant [2020-11-30 01:04:09,043 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:09,043 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 18]: Loop Invariant [2020-11-30 01:04:09,044 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:09,044 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:09,044 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 01:04:09,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 25 SDslu, 94 SDs, 0 SdLazy, 72 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 41 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 12 QuantifiedInterpolants, 3121 SizeOfPredicates, 18 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 correct! Received shutdown request...