./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 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/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_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/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 0.2.0-69874e2 [2020-12-01 15:46:59,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:46:59,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:46:59,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:46:59,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:46:59,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:46:59,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:46:59,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:46:59,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:46:59,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:46:59,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:46:59,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:46:59,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:46:59,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:46:59,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:46:59,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:46:59,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:46:59,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:46:59,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:46:59,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:46:59,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:46:59,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:46:59,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:46:59,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:46:59,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:46:59,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:46:59,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:46:59,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:46:59,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:46:59,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:46:59,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:46:59,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:46:59,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:46:59,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:46:59,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:46:59,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:46:59,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:46:59,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:46:59,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:46:59,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:46:59,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:46:59,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:46:59,528 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:46:59,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:46:59,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:46:59,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:46:59,531 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:46:59,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:46:59,531 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:46:59,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:46:59,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:46:59,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:46:59,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:46:59,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:46:59,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:46:59,534 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:46:59,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:46:59,534 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:46:59,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:46:59,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:46:59,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:46:59,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:46:59,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:46:59,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:46:59,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:46:59,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:46:59,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:46:59,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:46:59,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:46:59,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:46:59,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:46:59,537 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_d1837ca9-ece6-41de-981b-db2cffd961d4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 031d18bfb1e842ee5acf1572aa68f5278b9a3fdf [2020-12-01 15:46:59,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:46:59,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:46:59,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:46:59,861 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:46:59,862 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:46:59,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2020-12-01 15:46:59,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/data/3e580ed14/72430fafff2945a3a23c4e9fa6229fb9/FLAG183f21c1e [2020-12-01 15:47:00,500 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:47:00,500 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2020-12-01 15:47:00,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/data/3e580ed14/72430fafff2945a3a23c4e9fa6229fb9/FLAG183f21c1e [2020-12-01 15:47:00,873 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/data/3e580ed14/72430fafff2945a3a23c4e9fa6229fb9 [2020-12-01 15:47:00,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:47:00,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:47:00,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:47:00,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:47:00,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:47:00,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:47:00" (1/1) ... [2020-12-01 15:47:00,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5fefc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:00, skipping insertion in model container [2020-12-01 15:47:00,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:47:00" (1/1) ... [2020-12-01 15:47:00,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:47:00,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:47:01,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:47:01,117 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:47:01,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:47:01,163 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:47:01,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:01 WrapperNode [2020-12-01 15:47:01,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:47:01,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:47:01,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:47:01,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:47:01,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:01" (1/1) ... [2020-12-01 15:47:01,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:01" (1/1) ... [2020-12-01 15:47:01,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:47:01,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:47:01,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:47:01,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:47:01,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:01" (1/1) ... [2020-12-01 15:47:01,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:01" (1/1) ... [2020-12-01 15:47:01,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:01" (1/1) ... [2020-12-01 15:47:01,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:01" (1/1) ... [2020-12-01 15:47:01,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:01" (1/1) ... [2020-12-01 15:47:01,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:01" (1/1) ... [2020-12-01 15:47:01,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:01" (1/1) ... [2020-12-01 15:47:01,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:47:01,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:47:01,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:47:01,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:47:01,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/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 [2020-12-01 15:47:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:47:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:47:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 15:47:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:47:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 15:47:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:47:01,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:47:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:47:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:47:01,669 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:47:01,669 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-01 15:47:01,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:47:01 BoogieIcfgContainer [2020-12-01 15:47:01,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:47:01,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:47:01,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:47:01,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:47:01,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:47:00" (1/3) ... [2020-12-01 15:47:01,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1945b6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:47:01, skipping insertion in model container [2020-12-01 15:47:01,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:01" (2/3) ... [2020-12-01 15:47:01,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1945b6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:47:01, skipping insertion in model container [2020-12-01 15:47:01,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:47:01" (3/3) ... [2020-12-01 15:47:01,681 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2020-12-01 15:47:01,713 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:47:01,716 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:47:01,742 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:47:01,792 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:47:01,792 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:47:01,793 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:47:01,793 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:47:01,793 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:47:01,793 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:47:01,793 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:47:01,793 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:47:01,815 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-01 15:47:01,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:47:01,823 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:47:01,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:47:01,824 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:47:01,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:47:01,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2020-12-01 15:47:01,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:47:01,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992052912] [2020-12-01 15:47:01,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:47:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:47:02,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:47:02,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992052912] [2020-12-01 15:47:02,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:47:02,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:47:02,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847591969] [2020-12-01 15:47:02,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:47:02,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:47:02,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:47:02,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:47:02,062 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-12-01 15:47:02,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:47:02,088 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2020-12-01 15:47:02,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:47:02,090 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-01 15:47:02,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:47:02,109 INFO L225 Difference]: With dead ends: 65 [2020-12-01 15:47:02,109 INFO L226 Difference]: Without dead ends: 30 [2020-12-01 15:47:02,113 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 [2020-12-01 15:47:02,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-01 15:47:02,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-01 15:47:02,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-01 15:47:02,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-12-01 15:47:02,161 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2020-12-01 15:47:02,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:47:02,161 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-12-01 15:47:02,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:47:02,162 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-12-01 15:47:02,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:47:02,163 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:47:02,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:47:02,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:47:02,164 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:47:02,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:47:02,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2020-12-01 15:47:02,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:47:02,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5716957] [2020-12-01 15:47:02,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:47:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:47:02,248 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:47:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:47:02,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:47:02,341 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:47:02,341 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:47:02,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:47:02,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:47:02 BoogieIcfgContainer [2020-12-01 15:47:02,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:47:02,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:47:02,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:47:02,384 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:47:02,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:47:01" (3/4) ... [2020-12-01 15:47:02,388 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:47:02,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:47:02,391 INFO L168 Benchmark]: Toolchain (without parser) took 1510.43 ms. Allocated memory is still 111.1 MB. Free memory was 81.1 MB in the beginning and 76.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:47:02,392 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 81.8 MB. Free memory was 40.3 MB in the beginning and 40.3 MB in the end (delta: 36.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:47:02,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.72 ms. Allocated memory is still 111.1 MB. Free memory was 80.9 MB in the beginning and 87.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:47:02,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.17 ms. Allocated memory is still 111.1 MB. Free memory was 87.6 MB in the beginning and 85.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:47:02,395 INFO L168 Benchmark]: Boogie Preprocessor took 45.81 ms. Allocated memory is still 111.1 MB. Free memory was 85.8 MB in the beginning and 84.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:47:02,396 INFO L168 Benchmark]: RCFGBuilder took 421.73 ms. Allocated memory is still 111.1 MB. Free memory was 84.2 MB in the beginning and 64.5 MB in the end (delta: 19.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:47:02,397 INFO L168 Benchmark]: TraceAbstraction took 709.73 ms. Allocated memory is still 111.1 MB. Free memory was 64.1 MB in the beginning and 76.3 MB in the end (delta: -12.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:47:02,397 INFO L168 Benchmark]: Witness Printer took 4.44 ms. Allocated memory is still 111.1 MB. Free memory is still 76.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:47:02,406 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 81.8 MB. Free memory was 40.3 MB in the beginning and 40.3 MB in the end (delta: 36.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.72 ms. Allocated memory is still 111.1 MB. Free memory was 80.9 MB in the beginning and 87.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.17 ms. Allocated memory is still 111.1 MB. Free memory was 87.6 MB in the beginning and 85.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.81 ms. Allocated memory is still 111.1 MB. Free memory was 85.8 MB in the beginning and 84.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 421.73 ms. Allocated memory is still 111.1 MB. Free memory was 84.2 MB in the beginning and 64.5 MB in the end (delta: 19.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 709.73 ms. Allocated memory is still 111.1 MB. Free memory was 64.1 MB in the beginning and 76.3 MB in the end (delta: -12.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.44 ms. Allocated memory is still 111.1 MB. Free memory is still 76.3 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 0.2.0-69874e2 [2020-12-01 15:47:04,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:47:04,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:47:04,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:47:04,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:47:04,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:47:04,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:47:04,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:47:04,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:47:04,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:47:04,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:47:04,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:47:04,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:47:04,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:47:05,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:47:05,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:47:05,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:47:05,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:47:05,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:47:05,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:47:05,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:47:05,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:47:05,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:47:05,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:47:05,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:47:05,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:47:05,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:47:05,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:47:05,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:47:05,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:47:05,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:47:05,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:47:05,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:47:05,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:47:05,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:47:05,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:47:05,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:47:05,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:47:05,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:47:05,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:47:05,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:47:05,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:47:05,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:47:05,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:47:05,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:47:05,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:47:05,081 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:47:05,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:47:05,082 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:47:05,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:47:05,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:47:05,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:47:05,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:47:05,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:47:05,083 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:47:05,083 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:47:05,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:47:05,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:47:05,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:47:05,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:47:05,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:47:05,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:47:05,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:47:05,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:47:05,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:47:05,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:47:05,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:47:05,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:47:05,086 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:47:05,086 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:47:05,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:47:05,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:47:05,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:47:05,087 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_d1837ca9-ece6-41de-981b-db2cffd961d4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 031d18bfb1e842ee5acf1572aa68f5278b9a3fdf [2020-12-01 15:47:05,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:47:05,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:47:05,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:47:05,477 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:47:05,478 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:47:05,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2020-12-01 15:47:05,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/data/67e225f2a/8eff687e1213479daeeb487d44db229b/FLAG162ce1628 [2020-12-01 15:47:06,044 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:47:06,046 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2020-12-01 15:47:06,057 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/data/67e225f2a/8eff687e1213479daeeb487d44db229b/FLAG162ce1628 [2020-12-01 15:47:06,397 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/bin/uautomizer/data/67e225f2a/8eff687e1213479daeeb487d44db229b [2020-12-01 15:47:06,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:47:06,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:47:06,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:47:06,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:47:06,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:47:06,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:47:06" (1/1) ... [2020-12-01 15:47:06,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2108760c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:06, skipping insertion in model container [2020-12-01 15:47:06,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:47:06" (1/1) ... [2020-12-01 15:47:06,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:47:06,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:47:06,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:47:06,658 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:47:06,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:47:06,717 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:47:06,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:06 WrapperNode [2020-12-01 15:47:06,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:47:06,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:47:06,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:47:06,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:47:06,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:06" (1/1) ... [2020-12-01 15:47:06,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:06" (1/1) ... [2020-12-01 15:47:06,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:47:06,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:47:06,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:47:06,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:47:06,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:06" (1/1) ... [2020-12-01 15:47:06,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:06" (1/1) ... [2020-12-01 15:47:06,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:06" (1/1) ... [2020-12-01 15:47:06,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:06" (1/1) ... [2020-12-01 15:47:06,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:06" (1/1) ... [2020-12-01 15:47:06,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:06" (1/1) ... [2020-12-01 15:47:06,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:06" (1/1) ... [2020-12-01 15:47:06,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:47:06,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:47:06,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:47:06,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:47:06,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/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 [2020-12-01 15:47:06,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 15:47:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 15:47:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:47:06,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:47:06,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 15:47:06,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:47:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:47:06,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 15:47:06,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:47:09,020 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:47:09,020 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-01 15:47:09,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:47:09 BoogieIcfgContainer [2020-12-01 15:47:09,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:47:09,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:47:09,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:47:09,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:47:09,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:47:06" (1/3) ... [2020-12-01 15:47:09,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eaf69b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:47:09, skipping insertion in model container [2020-12-01 15:47:09,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:47:06" (2/3) ... [2020-12-01 15:47:09,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eaf69b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:47:09, skipping insertion in model container [2020-12-01 15:47:09,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:47:09" (3/3) ... [2020-12-01 15:47:09,030 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2020-12-01 15:47:09,044 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:47:09,047 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:47:09,058 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:47:09,088 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:47:09,088 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:47:09,088 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:47:09,088 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:47:09,089 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:47:09,089 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:47:09,089 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:47:09,089 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:47:09,099 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-01 15:47:09,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:47:09,104 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:47:09,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:47:09,105 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:47:09,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:47:09,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2020-12-01 15:47:09,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:47:09,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104467584] [2020-12-01 15:47:09,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/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 [2020-12-01 15:47:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:47:09,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 15:47:09,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:47:09,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:47:09,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:47:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:47:09,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104467584] [2020-12-01 15:47:09,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:47:09,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:47:09,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464391462] [2020-12-01 15:47:09,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:47:09,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:47:09,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:47:09,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:47:09,275 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-12-01 15:47:09,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:47:09,292 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2020-12-01 15:47:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:47:09,300 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-01 15:47:09,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:47:09,308 INFO L225 Difference]: With dead ends: 65 [2020-12-01 15:47:09,309 INFO L226 Difference]: Without dead ends: 30 [2020-12-01 15:47:09,311 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 [2020-12-01 15:47:09,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-01 15:47:09,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-01 15:47:09,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-01 15:47:09,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-12-01 15:47:09,343 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2020-12-01 15:47:09,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:47:09,343 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-12-01 15:47:09,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:47:09,344 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-12-01 15:47:09,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:47:09,344 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:47:09,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:47:09,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:47:09,566 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:47:09,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:47:09,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2020-12-01 15:47:09,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:47:09,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011228181] [2020-12-01 15:47:09,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/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 [2020-12-01 15:47:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:47:09,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:47:09,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:47:09,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:47:09,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:47:10,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:47:10,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011228181] [2020-12-01 15:47:10,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:47:10,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-12-01 15:47:10,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875934797] [2020-12-01 15:47:10,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:47:10,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:47:10,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:47:10,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:47:10,057 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 8 states. [2020-12-01 15:47:10,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:47:10,871 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2020-12-01 15:47:10,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:47:10,874 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-12-01 15:47:10,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:47:10,875 INFO L225 Difference]: With dead ends: 37 [2020-12-01 15:47:10,875 INFO L226 Difference]: Without dead ends: 16 [2020-12-01 15:47:10,876 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 [2020-12-01 15:47:10,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-01 15:47:10,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-01 15:47:10,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-01 15:47:10,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-12-01 15:47:10,879 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2020-12-01 15:47:10,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:47:10,880 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-12-01 15:47:10,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:47:10,880 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-12-01 15:47:10,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 15:47:10,881 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:47:10,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:47:11,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:47:11,097 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:47:11,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:47:11,098 INFO L82 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2020-12-01 15:47:11,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:47:11,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553524203] [2020-12-01 15:47:11,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/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 [2020-12-01 15:47:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:47:11,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:47:11,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:47:11,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:47:11,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:47:12,786 WARN L197 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-01 15:47:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:47:13,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553524203] [2020-12-01 15:47:13,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:47:13,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-01 15:47:13,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141862466] [2020-12-01 15:47:13,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:47:13,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:47:13,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:47:13,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:47:13,315 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2020-12-01 15:47:13,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:47:13,974 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-12-01 15:47:13,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:47:13,981 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-01 15:47:13,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:47:13,982 INFO L225 Difference]: With dead ends: 23 [2020-12-01 15:47:13,982 INFO L226 Difference]: Without dead ends: 16 [2020-12-01 15:47:13,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:47:13,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-01 15:47:13,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-01 15:47:13,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-01 15:47:13,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-12-01 15:47:13,986 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 14 [2020-12-01 15:47:13,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:47:13,986 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-12-01 15:47:13,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:47:13,987 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-12-01 15:47:13,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 15:47:13,987 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:47:13,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:47:14,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:47:14,198 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:47:14,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:47:14,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1568599403, now seen corresponding path program 1 times [2020-12-01 15:47:14,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:47:14,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210012763] [2020-12-01 15:47:14,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1837ca9-ece6-41de-981b-db2cffd961d4/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 [2020-12-01 15:47:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:47:14,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:47:14,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:47:14,466 INFO L382 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 [2020-12-01 15:47:14,473 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 15:47:14,478 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:47:14,479 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:47:14,505 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:47:14,506 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:47:14,506 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:20 [2020-12-01 15:47:14,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:47:14,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:47:14,648 INFO L382 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 [2020-12-01 15:47:14,652 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 15:47:14,657 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:47:14,657 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:47:14,662 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:47:14,663 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:47:14,663 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2020-12-01 15:47:14,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:47:14,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210012763] [2020-12-01 15:47:14,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:47:14,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-12-01 15:47:14,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912365137] [2020-12-01 15:47:14,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-01 15:47:14,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:47:14,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-01 15:47:14,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-12-01 15:47:14,728 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 12 states. [2020-12-01 15:47:15,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:47:15,329 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-12-01 15:47:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:47:15,330 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-12-01 15:47:15,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:47:15,330 INFO L225 Difference]: With dead ends: 16 [2020-12-01 15:47:15,330 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:47:15,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-12-01 15:47:15,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:47:15,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:47:15,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:47:15,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:47:15,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-01 15:47:15,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:47:15,332 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:47:15,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-01 15:47:15,332 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:47:15,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:47:15,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-01 15:47:15,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:47:15,783 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2020-12-01 15:47:15,786 INFO L262 CegarLoopResult]: For program point L60(lines 60 61) no Hoare annotation was computed. [2020-12-01 15:47:15,786 INFO L262 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-12-01 15:47:15,786 INFO L265 CegarLoopResult]: At program point L102(lines 85 103) the Hoare annotation is: true [2020-12-01 15:47:15,786 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 15:47:15,786 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-12-01 15:47:15,786 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:47:15,786 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:47:15,787 INFO L262 CegarLoopResult]: For program point L53(lines 53 75) no Hoare annotation was computed. [2020-12-01 15:47:15,787 INFO L262 CegarLoopResult]: For program point L37(lines 37 40) no Hoare annotation was computed. [2020-12-01 15:47:15,787 INFO L262 CegarLoopResult]: For program point L62(lines 62 74) no Hoare annotation was computed. [2020-12-01 15:47:15,787 INFO L262 CegarLoopResult]: For program point L54(lines 54 57) no Hoare annotation was computed. [2020-12-01 15:47:15,787 INFO L262 CegarLoopResult]: For program point L46(lines 46 51) no Hoare annotation was computed. [2020-12-01 15:47:15,787 INFO L262 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-12-01 15:47:15,787 INFO L262 CegarLoopResult]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2020-12-01 15:47:15,787 INFO L262 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-12-01 15:47:15,787 INFO L262 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-12-01 15:47:15,787 INFO L262 CegarLoopResult]: For program point L97(lines 97 100) no Hoare annotation was computed. [2020-12-01 15:47:15,787 INFO L262 CegarLoopResult]: For program point L64(lines 64 71) no Hoare annotation was computed. [2020-12-01 15:47:15,788 INFO L262 CegarLoopResult]: For program point L31(lines 31 75) no Hoare annotation was computed. [2020-12-01 15:47:15,788 INFO L262 CegarLoopResult]: For program point L32(lines 32 52) no Hoare annotation was computed. [2020-12-01 15:47:15,788 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:47:15,788 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:47:15,788 INFO L262 CegarLoopResult]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2020-12-01 15:47:15,788 INFO L258 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))) [2020-12-01 15:47:15,788 INFO L262 CegarLoopResult]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2020-12-01 15:47:15,789 INFO L258 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))))) [2020-12-01 15:47:15,789 INFO L262 CegarLoopResult]: For program point L33(lines 33 41) no Hoare annotation was computed. [2020-12-01 15:47:15,789 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:47:15,789 INFO L262 CegarLoopResult]: For program point L34(lines 34 40) no Hoare annotation was computed. [2020-12-01 15:47:15,789 INFO L262 CegarLoopResult]: For program point L76(lines 76 81) no Hoare annotation was computed. [2020-12-01 15:47:15,789 INFO L262 CegarLoopResult]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2020-12-01 15:47:15,789 INFO L262 CegarLoopResult]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2020-12-01 15:47:15,790 INFO L262 CegarLoopResult]: For program point L68(lines 68 69) no Hoare annotation was computed. [2020-12-01 15:47:15,790 INFO L262 CegarLoopResult]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2020-12-01 15:47:15,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:47:15,801 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:47:15,802 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:47:15,803 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:47:15,803 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:47:15,803 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:47:15,805 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:796) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) 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) [2020-12-01 15:47:15,809 INFO L168 Benchmark]: Toolchain (without parser) took 9406.27 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 40.1 MB in the beginning and 56.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:47:15,809 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 58.7 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:47:15,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.96 ms. Allocated memory is still 58.7 MB. Free memory was 39.9 MB in the beginning and 28.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:47:15,811 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.95 ms. Allocated memory is still 58.7 MB. Free memory was 28.5 MB in the beginning and 42.4 MB in the end (delta: -13.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:47:15,811 INFO L168 Benchmark]: Boogie Preprocessor took 53.72 ms. Allocated memory is still 58.7 MB. Free memory was 42.4 MB in the beginning and 40.6 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:47:15,812 INFO L168 Benchmark]: RCFGBuilder took 2143.83 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 40.6 MB in the beginning and 56.8 MB in the end (delta: -16.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:47:15,813 INFO L168 Benchmark]: TraceAbstraction took 6783.61 ms. Allocated memory is still 79.7 MB. Free memory was 56.5 MB in the beginning and 56.4 MB in the end (delta: 107.5 kB). Peak memory consumption was 35.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:47:15,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 58.7 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 312.96 ms. Allocated memory is still 58.7 MB. Free memory was 39.9 MB in the beginning and 28.6 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 102.95 ms. Allocated memory is still 58.7 MB. Free memory was 28.5 MB in the beginning and 42.4 MB in the end (delta: -13.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.72 ms. Allocated memory is still 58.7 MB. Free memory was 42.4 MB in the beginning and 40.6 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2143.83 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 40.6 MB in the beginning and 56.8 MB in the end (delta: -16.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6783.61 ms. Allocated memory is still 79.7 MB. Free memory was 56.5 MB in the beginning and 56.4 MB in the end (delta: 107.5 kB). Peak memory consumption was 35.0 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 [2020-12-01 15:47:15,824 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:47:15,825 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:47:15,825 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:47:15,825 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:47:15,826 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:47:15,826 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...