./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.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_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/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 031d18bfb1e842ee5acf1572aa68f5278b9a3fdf .................................................................................................................................................................................................................................................................................................... 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_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/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 031d18bfb1e842ee5acf1572aa68f5278b9a3fdf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (concat (_ BitVec 32) (_ BitVec 32) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:24:07,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:24:07,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:24:07,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:24:07,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:24:07,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:24:07,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:24:07,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:24:07,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:24:07,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:24:07,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:24:07,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:24:07,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:24:07,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:24:07,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:24:07,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:24:07,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:24:07,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:24:07,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:24:07,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:24:07,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:24:07,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:24:07,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:24:07,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:24:07,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:24:07,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:24:07,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:24:07,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:24:07,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:24:07,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:24:07,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:24:07,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:24:07,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:24:07,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:24:07,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:24:07,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:24:07,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:24:07,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:24:07,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:24:07,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:24:07,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:24:07,471 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:24:07,511 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:24:07,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:24:07,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:24:07,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:24:07,522 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:24:07,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:24:07,522 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:24:07,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:24:07,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:24:07,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:24:07,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:24:07,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:24:07,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:24:07,525 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:24:07,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:24:07,526 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:24:07,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:24:07,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:24:07,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:24:07,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:24:07,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:24:07,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:24:07,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:24:07,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:24:07,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:24:07,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:24:07,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:24:07,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:24:07,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:24:07,529 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_93bf06f1-c5e2-4985-a101-6b1268111278/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 031d18bfb1e842ee5acf1572aa68f5278b9a3fdf [2020-11-29 20:24:07,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:24:07,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:24:07,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:24:07,826 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:24:07,827 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:24:07,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2020-11-29 20:24:07,906 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/data/103c6e145/0d0d292997224f92aa0c41b26100fb2c/FLAGc9b230e5a [2020-11-29 20:24:08,380 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:24:08,381 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2020-11-29 20:24:08,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/data/103c6e145/0d0d292997224f92aa0c41b26100fb2c/FLAGc9b230e5a [2020-11-29 20:24:08,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/data/103c6e145/0d0d292997224f92aa0c41b26100fb2c [2020-11-29 20:24:08,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:24:08,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:24:08,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:24:08,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:24:08,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:24:08,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:24:08" (1/1) ... [2020-11-29 20:24:08,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7963d498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:08, skipping insertion in model container [2020-11-29 20:24:08,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:24:08" (1/1) ... [2020-11-29 20:24:08,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:24:08,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:24:08,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:24:08,944 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:24:08,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:24:09,000 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:24:09,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:09 WrapperNode [2020-11-29 20:24:09,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:24:09,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:24:09,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:24:09,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:24:09,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:09" (1/1) ... [2020-11-29 20:24:09,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:09" (1/1) ... [2020-11-29 20:24:09,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:24:09,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:24:09,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:24:09,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:24:09,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:09" (1/1) ... [2020-11-29 20:24:09,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:09" (1/1) ... [2020-11-29 20:24:09,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:09" (1/1) ... [2020-11-29 20:24:09,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:09" (1/1) ... [2020-11-29 20:24:09,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:09" (1/1) ... [2020-11-29 20:24:09,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:09" (1/1) ... [2020-11-29 20:24:09,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:09" (1/1) ... [2020-11-29 20:24:09,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:24:09,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:24:09,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:24:09,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:24:09,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:24:09,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:24:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:24:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 20:24:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 20:24:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 20:24:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:24:09,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:24:09,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 20:24:09,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:24:09,539 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:24:09,541 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-29 20:24:09,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:09 BoogieIcfgContainer [2020-11-29 20:24:09,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:24:09,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:24:09,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:24:09,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:24:09,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:24:08" (1/3) ... [2020-11-29 20:24:09,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9e58d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:24:09, skipping insertion in model container [2020-11-29 20:24:09,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:09" (2/3) ... [2020-11-29 20:24:09,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9e58d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:24:09, skipping insertion in model container [2020-11-29 20:24:09,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:09" (3/3) ... [2020-11-29 20:24:09,564 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2020-11-29 20:24:09,580 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:24:09,584 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:24:09,594 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:24:09,618 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:24:09,619 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:24:09,619 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:24:09,619 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:24:09,619 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:24:09,619 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:24:09,620 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:24:09,620 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:24:09,632 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-29 20:24:09,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:24:09,637 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:09,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:09,638 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:09,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:09,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2020-11-29 20:24:09,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:09,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106608622] [2020-11-29 20:24:09,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:09,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:09,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106608622] [2020-11-29 20:24:09,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:09,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:24:09,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449756919] [2020-11-29 20:24:09,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 20:24:09,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:24:09,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:24:09,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:24:09,864 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-29 20:24:09,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:09,888 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2020-11-29 20:24:09,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:24:09,890 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 20:24:09,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:09,906 INFO L225 Difference]: With dead ends: 65 [2020-11-29 20:24:09,907 INFO L226 Difference]: Without dead ends: 30 [2020-11-29 20:24:09,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:24:09,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-29 20:24:09,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-29 20:24:09,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 20:24:09,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-29 20:24:09,959 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2020-11-29 20:24:09,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:09,960 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-29 20:24:09,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 20:24:09,960 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-29 20:24:09,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 20:24:09,961 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:09,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:09,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:24:09,962 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:09,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:09,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2020-11-29 20:24:09,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:24:09,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866095865] [2020-11-29 20:24:09,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:24:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:10,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:10,125 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:10,161 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:24:10,161 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 20:24:10,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:24:10,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:24:10 BoogieIcfgContainer [2020-11-29 20:24:10,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:24:10,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:24:10,205 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:24:10,205 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:24:10,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:09" (3/4) ... [2020-11-29 20:24:10,209 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:24:10,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:24:10,213 INFO L168 Benchmark]: Toolchain (without parser) took 1483.29 ms. Allocated memory is still 98.6 MB. Free memory was 74.8 MB in the beginning and 61.4 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:10,214 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 77.6 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:24:10,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.63 ms. Allocated memory is still 98.6 MB. Free memory was 74.8 MB in the beginning and 74.3 MB in the end (delta: 510.5 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:10,216 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.75 ms. Allocated memory is still 98.6 MB. Free memory was 74.3 MB in the beginning and 72.5 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:24:10,217 INFO L168 Benchmark]: Boogie Preprocessor took 29.52 ms. Allocated memory is still 98.6 MB. Free memory was 72.5 MB in the beginning and 71.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:24:10,217 INFO L168 Benchmark]: RCFGBuilder took 475.95 ms. Allocated memory is still 98.6 MB. Free memory was 70.8 MB in the beginning and 51.2 MB in the end (delta: 19.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:10,218 INFO L168 Benchmark]: TraceAbstraction took 646.98 ms. Allocated memory is still 98.6 MB. Free memory was 50.9 MB in the beginning and 62.0 MB in the end (delta: -11.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:24:10,219 INFO L168 Benchmark]: Witness Printer took 4.73 ms. Allocated memory is still 98.6 MB. Free memory is still 61.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:24:10,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 77.6 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 273.63 ms. Allocated memory is still 98.6 MB. Free memory was 74.8 MB in the beginning and 74.3 MB in the end (delta: 510.5 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.75 ms. Allocated memory is still 98.6 MB. Free memory was 74.3 MB in the beginning and 72.5 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.52 ms. Allocated memory is still 98.6 MB. Free memory was 72.5 MB in the beginning and 71.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 475.95 ms. Allocated memory is still 98.6 MB. Free memory was 70.8 MB in the beginning and 51.2 MB in the end (delta: 19.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 646.98 ms. Allocated memory is still 98.6 MB. Free memory was 50.9 MB in the beginning and 62.0 MB in the end (delta: -11.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.73 ms. Allocated memory is still 98.6 MB. Free memory is still 61.4 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 43, overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 93, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 97. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = -0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L32] COND FALSE !(j0 < 0) [L43] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L44] COND TRUE ((i0 & i) | i1) == 0 [L45] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_1092a.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:24:12,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:24:12,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:24:12,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:24:12,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:24:12,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:24:12,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:24:12,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:24:12,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:24:12,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:24:12,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:24:12,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:24:12,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:24:12,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:24:12,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:24:12,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:24:12,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:24:12,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:24:12,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:24:12,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:24:12,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:24:12,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:24:12,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:24:12,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:24:12,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:24:12,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:24:12,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:24:12,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:24:12,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:24:12,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:24:12,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:24:12,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:24:12,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:24:12,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:24:12,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:24:12,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:24:12,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:24:12,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:24:12,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:24:12,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:24:12,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:24:12,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 20:24:12,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:24:12,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:24:12,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:24:12,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:24:12,841 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:24:12,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:24:12,842 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:24:12,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:24:12,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:24:12,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:24:12,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:24:12,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:24:12,844 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 20:24:12,844 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 20:24:12,844 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:24:12,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:24:12,845 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:24:12,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:24:12,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:24:12,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:24:12,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:24:12,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:24:12,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:24:12,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:24:12,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:24:12,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:24:12,847 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 20:24:12,847 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 20:24:12,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:24:12,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:24:12,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 20:24:12,848 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_93bf06f1-c5e2-4985-a101-6b1268111278/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 031d18bfb1e842ee5acf1572aa68f5278b9a3fdf [2020-11-29 20:24:13,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:24:13,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:24:13,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:24:13,347 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:24:13,348 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:24:13,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2020-11-29 20:24:13,421 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/data/2b08ba18b/5129489f7325473bbca45aace1c33d53/FLAG334b57df7 [2020-11-29 20:24:13,931 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:24:13,931 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2020-11-29 20:24:13,938 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/data/2b08ba18b/5129489f7325473bbca45aace1c33d53/FLAG334b57df7 [2020-11-29 20:24:14,283 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/data/2b08ba18b/5129489f7325473bbca45aace1c33d53 [2020-11-29 20:24:14,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:24:14,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:24:14,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:24:14,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:24:14,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:24:14,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:24:14" (1/1) ... [2020-11-29 20:24:14,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6db4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:14, skipping insertion in model container [2020-11-29 20:24:14,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:24:14" (1/1) ... [2020-11-29 20:24:14,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:24:14,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:24:14,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:24:14,490 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:24:14,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:24:14,543 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:24:14,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:14 WrapperNode [2020-11-29 20:24:14,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:24:14,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:24:14,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:24:14,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:24:14,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:14" (1/1) ... [2020-11-29 20:24:14,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:14" (1/1) ... [2020-11-29 20:24:14,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:24:14,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:24:14,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:24:14,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:24:14,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:14" (1/1) ... [2020-11-29 20:24:14,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:14" (1/1) ... [2020-11-29 20:24:14,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:14" (1/1) ... [2020-11-29 20:24:14,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:14" (1/1) ... [2020-11-29 20:24:14,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:14" (1/1) ... [2020-11-29 20:24:14,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:14" (1/1) ... [2020-11-29 20:24:14,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:14" (1/1) ... [2020-11-29 20:24:14,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:24:14,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:24:14,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:24:14,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:24:14,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:24:14,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-29 20:24:14,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-29 20:24:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 20:24:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:24:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 20:24:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:24:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:24:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 20:24:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:24:16,513 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:24:16,516 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-29 20:24:16,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:16 BoogieIcfgContainer [2020-11-29 20:24:16,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:24:16,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:24:16,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:24:16,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:24:16,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:24:14" (1/3) ... [2020-11-29 20:24:16,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1514981e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:24:16, skipping insertion in model container [2020-11-29 20:24:16,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:24:14" (2/3) ... [2020-11-29 20:24:16,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1514981e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:24:16, skipping insertion in model container [2020-11-29 20:24:16,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:24:16" (3/3) ... [2020-11-29 20:24:16,529 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2020-11-29 20:24:16,541 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:24:16,545 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:24:16,558 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:24:16,597 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:24:16,597 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:24:16,597 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:24:16,597 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:24:16,597 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:24:16,597 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:24:16,598 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:24:16,598 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:24:16,609 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-29 20:24:16,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:24:16,615 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:16,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:16,616 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:16,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:16,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2020-11-29 20:24:16,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:16,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967677233] [2020-11-29 20:24:16,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:16,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 20:24:16,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:16,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:16,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:16,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:16,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967677233] [2020-11-29 20:24:16,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:16,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 20:24:16,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954535720] [2020-11-29 20:24:16,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 20:24:16,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:16,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:24:16,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:24:16,797 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-29 20:24:16,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:16,825 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2020-11-29 20:24:16,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:24:16,826 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 20:24:16,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:16,835 INFO L225 Difference]: With dead ends: 65 [2020-11-29 20:24:16,836 INFO L226 Difference]: Without dead ends: 30 [2020-11-29 20:24:16,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:24:16,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-29 20:24:16,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-29 20:24:16,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 20:24:16,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-29 20:24:16,875 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2020-11-29 20:24:16,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:16,875 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-29 20:24:16,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 20:24:16,876 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-29 20:24:16,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 20:24:16,876 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:16,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:17,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 20:24:17,094 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:17,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:17,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2020-11-29 20:24:17,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:17,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391183344] [2020-11-29 20:24:17,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:17,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 20:24:17,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:17,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:17,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:17,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391183344] [2020-11-29 20:24:17,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:17,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 20:24:17,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708868114] [2020-11-29 20:24:17,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:24:17,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:17,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:24:17,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:24:17,446 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 8 states. [2020-11-29 20:24:17,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:17,890 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2020-11-29 20:24:17,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:24:17,893 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-29 20:24:17,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:17,894 INFO L225 Difference]: With dead ends: 37 [2020-11-29 20:24:17,894 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 20:24:17,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-29 20:24:17,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 20:24:17,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 20:24:17,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 20:24:17,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-29 20:24:17,899 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2020-11-29 20:24:17,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:17,899 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-29 20:24:17,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:24:17,899 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-29 20:24:17,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 20:24:17,900 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:17,900 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:18,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 20:24:18,101 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:18,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:18,102 INFO L82 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2020-11-29 20:24:18,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:18,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15081420] [2020-11-29 20:24:18,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:18,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 20:24:18,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:18,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:18,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:19,051 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-29 20:24:19,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:19,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15081420] [2020-11-29 20:24:19,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:19,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-29 20:24:19,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314927421] [2020-11-29 20:24:19,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:24:19,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:19,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:24:19,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:24:19,287 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2020-11-29 20:24:19,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:19,733 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-11-29 20:24:19,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:24:19,742 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-29 20:24:19,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:19,743 INFO L225 Difference]: With dead ends: 23 [2020-11-29 20:24:19,743 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 20:24:19,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:24:19,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 20:24:19,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 20:24:19,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 20:24:19,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-29 20:24:19,760 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 14 [2020-11-29 20:24:19,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:19,760 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-29 20:24:19,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:24:19,760 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-29 20:24:19,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 20:24:19,761 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:19,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:19,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 20:24:19,962 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:24:19,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:19,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1568599403, now seen corresponding path program 1 times [2020-11-29 20:24:19,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:19,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281910697] [2020-11-29 20:24:19,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_93bf06f1-c5e2-4985-a101-6b1268111278/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:20,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:24:20,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:20,185 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2020-11-29 20:24:20,192 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 20:24:20,199 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:24:20,200 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 20:24:20,207 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:24:20,207 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 20:24:20,208 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:20 [2020-11-29 20:24:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:20,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:20,481 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2020-11-29 20:24:20,485 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 20:24:20,491 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:24:20,491 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 20:24:20,496 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:24:20,497 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 20:24:20,497 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2020-11-29 20:24:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:24:20,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1281910697] [2020-11-29 20:24:20,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:20,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-11-29 20:24:20,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315373294] [2020-11-29 20:24:20,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 20:24:20,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:20,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 20:24:20,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-11-29 20:24:20,557 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 12 states. [2020-11-29 20:24:21,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:21,020 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-11-29 20:24:21,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:24:21,020 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-11-29 20:24:21,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:21,020 INFO L225 Difference]: With dead ends: 16 [2020-11-29 20:24:21,020 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:24:21,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-11-29 20:24:21,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:24:21,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:24:21,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:24:21,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:24:21,022 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-29 20:24:21,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:21,022 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:24:21,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 20:24:21,022 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:24:21,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:24:21,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 20:24:21,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:24:21,507 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2020-11-29 20:24:21,511 INFO L274 CegarLoopResult]: For program point L60(lines 60 61) no Hoare annotation was computed. [2020-11-29 20:24:21,511 INFO L274 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-11-29 20:24:21,511 INFO L277 CegarLoopResult]: At program point L102(lines 85 103) the Hoare annotation is: true [2020-11-29 20:24:21,512 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 20:24:21,512 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 20:24:21,512 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:24:21,512 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:24:21,512 INFO L274 CegarLoopResult]: For program point L53(lines 53 75) no Hoare annotation was computed. [2020-11-29 20:24:21,512 INFO L274 CegarLoopResult]: For program point L37(lines 37 40) no Hoare annotation was computed. [2020-11-29 20:24:21,512 INFO L274 CegarLoopResult]: For program point L62(lines 62 74) no Hoare annotation was computed. [2020-11-29 20:24:21,512 INFO L274 CegarLoopResult]: For program point L54(lines 54 57) no Hoare annotation was computed. [2020-11-29 20:24:21,512 INFO L274 CegarLoopResult]: For program point L46(lines 46 51) no Hoare annotation was computed. [2020-11-29 20:24:21,512 INFO L274 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-11-29 20:24:21,512 INFO L274 CegarLoopResult]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2020-11-29 20:24:21,513 INFO L274 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-11-29 20:24:21,513 INFO L274 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-11-29 20:24:21,513 INFO L274 CegarLoopResult]: For program point L97(lines 97 100) no Hoare annotation was computed. [2020-11-29 20:24:21,513 INFO L274 CegarLoopResult]: For program point L64(lines 64 71) no Hoare annotation was computed. [2020-11-29 20:24:21,513 INFO L274 CegarLoopResult]: For program point L31(lines 31 75) no Hoare annotation was computed. [2020-11-29 20:24:21,513 INFO L274 CegarLoopResult]: For program point L32(lines 32 52) no Hoare annotation was computed. [2020-11-29 20:24:21,513 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:24:21,513 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 20:24:21,513 INFO L274 CegarLoopResult]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2020-11-29 20:24:21,513 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 29) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ~huge_ceil~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= ULTIMATE.start_main_~x~0 .cse0) (= currentRoundingMode roundNearestTiesToEven) (= .cse0 ULTIMATE.start_ceil_double_~x))) [2020-11-29 20:24:21,514 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2020-11-29 20:24:21,514 INFO L270 CegarLoopResult]: At program point L82(lines 21 83) the Hoare annotation is: (let ((.cse0 (let ((.cse1 (concat (_ bv2147483648 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (and (= ~huge_ceil~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= .cse0 ULTIMATE.start_ceil_double_~x) (= ULTIMATE.start_main_~x~0 (fp.neg (_ +zero 11 53))) (= .cse0 |ULTIMATE.start_ceil_double_#res|) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_double_~i1~0 (_ bv0 32)) (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (bvadd ULTIMATE.start_ceil_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32)))) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.neg (_ +zero 11 53))))) (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start_ceil_double_~i0~0))))) [2020-11-29 20:24:21,514 INFO L274 CegarLoopResult]: For program point L33(lines 33 41) no Hoare annotation was computed. [2020-11-29 20:24:21,514 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:24:21,514 INFO L274 CegarLoopResult]: For program point L34(lines 34 40) no Hoare annotation was computed. [2020-11-29 20:24:21,514 INFO L274 CegarLoopResult]: For program point L76(lines 76 81) no Hoare annotation was computed. [2020-11-29 20:24:21,514 INFO L274 CegarLoopResult]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2020-11-29 20:24:21,514 INFO L274 CegarLoopResult]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2020-11-29 20:24:21,517 INFO L274 CegarLoopResult]: For program point L68(lines 68 69) no Hoare annotation was computed. [2020-11-29 20:24:21,517 INFO L274 CegarLoopResult]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2020-11-29 20:24:21,529 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:24:21,531 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:24:21,532 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:24:21,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:24:21,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:24:21,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:24:21,538 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (concat (_ BitVec 32) (_ BitVec 32) (_ BitVec 64)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-29 20:24:21,545 INFO L168 Benchmark]: Toolchain (without parser) took 7256.06 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 40.5 MB in the beginning and 36.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:21,547 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 42.5 MB in the end (delta: 30.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:24:21,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.06 ms. Allocated memory is still 60.8 MB. Free memory was 40.3 MB in the beginning and 29.0 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:21,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.22 ms. Allocated memory is still 60.8 MB. Free memory was 28.9 MB in the beginning and 43.5 MB in the end (delta: -14.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:21,559 INFO L168 Benchmark]: Boogie Preprocessor took 38.49 ms. Allocated memory is still 60.8 MB. Free memory was 43.5 MB in the beginning and 41.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:24:21,561 INFO L168 Benchmark]: RCFGBuilder took 1858.31 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 41.8 MB in the beginning and 62.0 MB in the end (delta: -20.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:21,564 INFO L168 Benchmark]: TraceAbstraction took 5022.55 ms. Allocated memory is still 83.9 MB. Free memory was 61.7 MB in the beginning and 36.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:21,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 42.5 MB in the end (delta: 30.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.06 ms. Allocated memory is still 60.8 MB. Free memory was 40.3 MB in the beginning and 29.0 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.22 ms. Allocated memory is still 60.8 MB. Free memory was 28.9 MB in the beginning and 43.5 MB in the end (delta: -14.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.49 ms. Allocated memory is still 60.8 MB. Free memory was 43.5 MB in the beginning and 41.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1858.31 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 41.8 MB in the beginning and 62.0 MB in the end (delta: -20.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5022.55 ms. Allocated memory is still 83.9 MB. Free memory was 61.7 MB in the beginning and 36.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * 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: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2020-11-29 20:24:21,576 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:24:21,577 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:24:21,577 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:24:21,577 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:24:21,577 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:24:21,578 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - ExceptionOrErrorResult: UnsupportedOperationException: translation of (concat (_ BitVec 32) (_ BitVec 32) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (concat (_ BitVec 32) (_ BitVec 32) (_ BitVec 64)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...