./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 ....................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 17:37:24,449 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 17:37:24,450 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 17:37:24,458 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 17:37:24,458 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 17:37:24,459 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 17:37:24,460 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 17:37:24,461 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 17:37:24,462 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 17:37:24,462 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 17:37:24,463 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 17:37:24,463 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 17:37:24,464 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 17:37:24,464 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 17:37:24,465 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 17:37:24,466 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 17:37:24,466 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 17:37:24,467 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 17:37:24,469 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 17:37:24,470 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 17:37:24,471 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 17:37:24,471 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 17:37:24,473 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 17:37:24,473 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 17:37:24,473 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 17:37:24,474 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 17:37:24,475 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 17:37:24,475 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 17:37:24,476 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 17:37:24,476 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 17:37:24,477 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 17:37:24,477 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 17:37:24,477 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 17:37:24,477 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 17:37:24,478 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 17:37:24,478 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 17:37:24,478 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 17:37:24,489 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 17:37:24,489 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 17:37:24,490 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 17:37:24,490 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 17:37:24,490 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 17:37:24,490 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 17:37:24,490 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 17:37:24,490 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 17:37:24,491 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 17:37:24,491 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 17:37:24,491 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 17:37:24,491 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 17:37:24,491 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 17:37:24,491 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 17:37:24,491 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 17:37:24,491 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 17:37:24,491 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 17:37:24,491 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 17:37:24,492 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 17:37:24,492 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 17:37:24,492 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 17:37:24,492 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 17:37:24,492 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 17:37:24,492 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:37:24,492 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 17:37:24,492 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 17:37:24,492 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 17:37:24,492 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 17:37:24,493 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 17:37:24,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 17:37:24,493 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/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(__VERIFIER_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 -> b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 [2018-12-08 17:37:24,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 17:37:24,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 17:37:24,524 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 17:37:24,525 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 17:37:24,525 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 17:37:24,526 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c [2018-12-08 17:37:24,561 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/data/55999f044/453f6a86b33d4259a5fd091a786d1bea/FLAGf2009befb [2018-12-08 17:37:24,893 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 17:37:24,893 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c [2018-12-08 17:37:24,897 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/data/55999f044/453f6a86b33d4259a5fd091a786d1bea/FLAGf2009befb [2018-12-08 17:37:25,290 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/data/55999f044/453f6a86b33d4259a5fd091a786d1bea [2018-12-08 17:37:25,292 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 17:37:25,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 17:37:25,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 17:37:25,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 17:37:25,296 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 17:37:25,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:37:25" (1/1) ... [2018-12-08 17:37:25,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ddcec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:25, skipping insertion in model container [2018-12-08 17:37:25,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:37:25" (1/1) ... [2018-12-08 17:37:25,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 17:37:25,319 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 17:37:25,429 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:37:25,431 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 17:37:25,446 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:37:25,458 INFO L195 MainTranslator]: Completed translation [2018-12-08 17:37:25,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:25 WrapperNode [2018-12-08 17:37:25,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 17:37:25,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 17:37:25,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 17:37:25,459 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 17:37:25,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:25" (1/1) ... [2018-12-08 17:37:25,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:25" (1/1) ... [2018-12-08 17:37:25,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 17:37:25,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 17:37:25,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 17:37:25,474 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 17:37:25,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:25" (1/1) ... [2018-12-08 17:37:25,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:25" (1/1) ... [2018-12-08 17:37:25,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:25" (1/1) ... [2018-12-08 17:37:25,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:25" (1/1) ... [2018-12-08 17:37:25,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:25" (1/1) ... [2018-12-08 17:37:25,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:25" (1/1) ... [2018-12-08 17:37:25,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:25" (1/1) ... [2018-12-08 17:37:25,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 17:37:25,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 17:37:25,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 17:37:25,520 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 17:37:25,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/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 [2018-12-08 17:37:25,550 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-08 17:37:25,550 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-08 17:37:25,550 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 17:37:25,550 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 17:37:25,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 17:37:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 17:37:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-12-08 17:37:25,551 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-12-08 17:37:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 17:37:25,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 17:37:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 17:37:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 17:37:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 17:37:25,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 17:37:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 17:37:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 17:37:25,680 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 17:37:25,680 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 17:37:25,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:37:25 BoogieIcfgContainer [2018-12-08 17:37:25,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 17:37:25,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 17:37:25,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 17:37:25,683 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 17:37:25,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 05:37:25" (1/3) ... [2018-12-08 17:37:25,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c9a13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:37:25, skipping insertion in model container [2018-12-08 17:37:25,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:25" (2/3) ... [2018-12-08 17:37:25,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c9a13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:37:25, skipping insertion in model container [2018-12-08 17:37:25,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:37:25" (3/3) ... [2018-12-08 17:37:25,685 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012a_true-unreach-call.c [2018-12-08 17:37:25,691 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 17:37:25,695 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 17:37:25,704 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 17:37:25,721 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 17:37:25,721 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 17:37:25,721 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 17:37:25,721 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 17:37:25,721 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 17:37:25,721 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 17:37:25,721 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 17:37:25,721 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 17:37:25,722 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 17:37:25,733 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-12-08 17:37:25,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 17:37:25,736 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:37:25,736 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:37:25,738 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:37:25,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:37:25,741 INFO L82 PathProgramCache]: Analyzing trace with hash -739558388, now seen corresponding path program 1 times [2018-12-08 17:37:25,742 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:37:25,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:37:25,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:37:25,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:37:25,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:37:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:37:25,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:37:25,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:37:25,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 17:37:25,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 17:37:25,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 17:37:25,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 17:37:25,835 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-12-08 17:37:25,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:37:25,847 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2018-12-08 17:37:25,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 17:37:25,848 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-08 17:37:25,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:37:25,852 INFO L225 Difference]: With dead ends: 54 [2018-12-08 17:37:25,852 INFO L226 Difference]: Without dead ends: 27 [2018-12-08 17:37:25,854 INFO L631 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 [2018-12-08 17:37:25,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-08 17:37:25,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-08 17:37:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-08 17:37:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-12-08 17:37:25,875 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 23 [2018-12-08 17:37:25,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:37:25,875 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-12-08 17:37:25,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 17:37:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-12-08 17:37:25,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-08 17:37:25,876 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:37:25,876 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:37:25,877 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:37:25,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:37:25,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1668428866, now seen corresponding path program 1 times [2018-12-08 17:37:25,877 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:37:25,877 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:37:25,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:37:25,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:37:25,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:37:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:37:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:37:25,957 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 17:37:25,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 05:37:25 BoogieIcfgContainer [2018-12-08 17:37:25,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 17:37:25,975 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 17:37:25,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 17:37:25,975 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 17:37:25,976 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:37:25" (3/4) ... [2018-12-08 17:37:25,978 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 17:37:25,978 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 17:37:25,978 INFO L168 Benchmark]: Toolchain (without parser) took 686.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 71.3 MB). Free memory was 958.7 MB in the beginning and 998.5 MB in the end (delta: -39.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2018-12-08 17:37:25,979 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:37:25,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.28 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 17:37:25,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.66 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 945.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 17:37:25,981 INFO L168 Benchmark]: Boogie Preprocessor took 45.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 71.3 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -120.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-08 17:37:25,981 INFO L168 Benchmark]: RCFGBuilder took 160.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-12-08 17:37:25,981 INFO L168 Benchmark]: TraceAbstraction took 293.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 998.5 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. [2018-12-08 17:37:25,982 INFO L168 Benchmark]: Witness Printer took 2.89 ms. Allocated memory is still 1.1 GB. Free memory is still 998.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:37:25,984 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 165.28 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.66 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 945.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 71.3 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -120.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 160.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 293.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 998.5 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.89 ms. Allocated memory is still 1.1 GB. Free memory is still 998.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 73]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 68, overapproximation of bitwiseAnd at line 38. Possible FailurePath: [L68] double x = 1.0 / 0.0; [L69] CALL, EXPR fabs_double(x) VAL [\old(x)=6442450952] [L45] __uint32_t high; VAL [\old(x)=6442450952, x=6442450952] [L47] ieee_double_shape_type gh_u; [L48] gh_u.value = (x) [L49] EXPR gh_u.parts.msw [L49] (high) = gh_u.parts.msw [L52] ieee_double_shape_type sh_u; [L53] sh_u.value = (x) [L54] sh_u.parts.msw = (high & 0x7fffffff) [L55] EXPR sh_u.value [L55] (x) = sh_u.value [L57] return x; VAL [\old(x)=6442450952, \result=6442450952, high=2147483666, x=6442450952] [L69] RET, EXPR fabs_double(x) VAL [fabs_double(x)=6442450952, x=6442450952] [L69] double res = fabs_double(x); [L72] CALL, EXPR isinf_double(res) VAL [\old(x)=6442450952] [L31] __int32_t hx, lx; VAL [\old(x)=6442450952, x=6442450952] [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (x) [L35] EXPR ew_u.parts.msw [L35] (hx) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (lx) = ew_u.parts.lsw [L38] hx &= 0x7fffffff [L39] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L40] hx = 0x7ff00000 - hx [L41] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=6442450952, \result=0, hx=2146435072, lx=-2147483648, x=6442450952] [L72] RET, EXPR isinf_double(res) VAL [isinf_double(res)=0, res=6442450952, x=6442450952] [L72] COND TRUE !isinf_double(res) [L73] __VERIFIER_error() VAL [res=6442450952, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 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=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-635dfa2 [2018-12-08 17:37:27,292 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 17:37:27,293 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 17:37:27,299 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 17:37:27,300 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 17:37:27,300 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 17:37:27,301 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 17:37:27,301 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 17:37:27,302 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 17:37:27,302 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 17:37:27,303 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 17:37:27,303 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 17:37:27,303 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 17:37:27,304 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 17:37:27,304 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 17:37:27,305 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 17:37:27,305 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 17:37:27,306 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 17:37:27,307 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 17:37:27,308 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 17:37:27,308 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 17:37:27,309 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 17:37:27,310 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 17:37:27,310 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 17:37:27,310 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 17:37:27,310 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 17:37:27,311 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 17:37:27,311 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 17:37:27,311 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 17:37:27,312 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 17:37:27,312 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 17:37:27,312 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 17:37:27,313 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 17:37:27,313 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 17:37:27,313 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 17:37:27,313 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 17:37:27,314 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-08 17:37:27,321 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 17:37:27,321 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 17:37:27,321 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 17:37:27,321 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 17:37:27,322 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 17:37:27,322 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 17:37:27,322 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 17:37:27,322 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 17:37:27,322 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 17:37:27,322 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 17:37:27,322 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 17:37:27,322 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 17:37:27,323 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 17:37:27,323 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 17:37:27,323 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 17:37:27,323 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 17:37:27,323 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 17:37:27,323 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 17:37:27,323 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 17:37:27,323 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 17:37:27,323 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 17:37:27,323 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 17:37:27,323 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 17:37:27,324 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 17:37:27,324 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:37:27,324 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 17:37:27,324 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 17:37:27,324 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 17:37:27,324 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 17:37:27,324 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 17:37:27,324 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 17:37:27,324 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 17:37:27,324 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/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(__VERIFIER_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 -> b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 [2018-12-08 17:37:27,343 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 17:37:27,352 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 17:37:27,355 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 17:37:27,356 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 17:37:27,356 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 17:37:27,357 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c [2018-12-08 17:37:27,396 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/data/3c572b840/6b2354d7533d4544b7ac240110e20514/FLAGdfcc5ac0e [2018-12-08 17:37:27,789 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 17:37:27,790 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c [2018-12-08 17:37:27,793 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/data/3c572b840/6b2354d7533d4544b7ac240110e20514/FLAGdfcc5ac0e [2018-12-08 17:37:27,803 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/data/3c572b840/6b2354d7533d4544b7ac240110e20514 [2018-12-08 17:37:27,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 17:37:27,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 17:37:27,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 17:37:27,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 17:37:27,809 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 17:37:27,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:37:27" (1/1) ... [2018-12-08 17:37:27,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d0c8a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:27, skipping insertion in model container [2018-12-08 17:37:27,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:37:27" (1/1) ... [2018-12-08 17:37:27,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 17:37:27,829 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 17:37:27,929 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:37:27,932 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 17:37:27,950 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:37:27,968 INFO L195 MainTranslator]: Completed translation [2018-12-08 17:37:27,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:27 WrapperNode [2018-12-08 17:37:27,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 17:37:27,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 17:37:27,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 17:37:27,969 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 17:37:27,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:27" (1/1) ... [2018-12-08 17:37:27,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:27" (1/1) ... [2018-12-08 17:37:27,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 17:37:27,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 17:37:27,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 17:37:27,985 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 17:37:27,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:27" (1/1) ... [2018-12-08 17:37:27,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:27" (1/1) ... [2018-12-08 17:37:27,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:27" (1/1) ... [2018-12-08 17:37:27,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:27" (1/1) ... [2018-12-08 17:37:28,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:27" (1/1) ... [2018-12-08 17:37:28,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:27" (1/1) ... [2018-12-08 17:37:28,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:27" (1/1) ... [2018-12-08 17:37:28,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 17:37:28,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 17:37:28,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 17:37:28,036 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 17:37:28,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/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 [2018-12-08 17:37:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-08 17:37:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-08 17:37:28,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-08 17:37:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-08 17:37:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 17:37:28,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 17:37:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-12-08 17:37:28,067 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-12-08 17:37:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 17:37:28,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 17:37:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 17:37:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 17:37:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 17:37:28,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 17:37:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 17:37:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 17:37:28,164 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:37:28,182 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:37:28,231 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:37:28,254 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 17:37:28,254 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 17:37:28,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:37:28 BoogieIcfgContainer [2018-12-08 17:37:28,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 17:37:28,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 17:37:28,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 17:37:28,258 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 17:37:28,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 05:37:27" (1/3) ... [2018-12-08 17:37:28,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679ffce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:37:28, skipping insertion in model container [2018-12-08 17:37:28,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:37:27" (2/3) ... [2018-12-08 17:37:28,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679ffce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:37:28, skipping insertion in model container [2018-12-08 17:37:28,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:37:28" (3/3) ... [2018-12-08 17:37:28,260 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012a_true-unreach-call.c [2018-12-08 17:37:28,265 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 17:37:28,269 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 17:37:28,277 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 17:37:28,293 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 17:37:28,294 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 17:37:28,294 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 17:37:28,294 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 17:37:28,294 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 17:37:28,294 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 17:37:28,294 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 17:37:28,294 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 17:37:28,294 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 17:37:28,303 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-12-08 17:37:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 17:37:28,306 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:37:28,307 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:37:28,308 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:37:28,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:37:28,311 INFO L82 PathProgramCache]: Analyzing trace with hash 603222923, now seen corresponding path program 1 times [2018-12-08 17:37:28,313 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 17:37:28,314 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/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 [2018-12-08 17:37:28,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:37:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:37:28,358 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:37:28,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:37:28,369 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 17:37:28,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:37:28,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 17:37:28,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 17:37:28,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 17:37:28,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 17:37:28,392 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-12-08 17:37:28,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:37:28,403 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2018-12-08 17:37:28,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 17:37:28,404 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-08 17:37:28,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:37:28,409 INFO L225 Difference]: With dead ends: 52 [2018-12-08 17:37:28,409 INFO L226 Difference]: Without dead ends: 26 [2018-12-08 17:37:28,411 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 17:37:28,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-08 17:37:28,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-12-08 17:37:28,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-08 17:37:28,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2018-12-08 17:37:28,432 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 22 [2018-12-08 17:37:28,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:37:28,432 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2018-12-08 17:37:28,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 17:37:28,432 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2018-12-08 17:37:28,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 17:37:28,433 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:37:28,433 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:37:28,433 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:37:28,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:37:28,433 INFO L82 PathProgramCache]: Analyzing trace with hash -460417459, now seen corresponding path program 1 times [2018-12-08 17:37:28,433 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 17:37:28,434 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/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 [2018-12-08 17:37:28,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:37:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:37:28,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:37:28,580 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 17:37:28,581 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 17:37:28,581 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 17:37:28,582 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 17:37:28,586 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 73 [2018-12-08 17:37:28,622 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 60 [2018-12-08 17:37:28,623 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 17:37:28,662 INFO L478 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 28 treesize of output 22 [2018-12-08 17:37:28,679 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 17:37:28,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2018-12-08 17:37:28,680 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 17:37:28,711 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 17:37:28,768 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 17:37:29,008 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-08 17:37:29,008 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:66, output treesize:46 [2018-12-08 17:37:29,135 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 87 [2018-12-08 17:37:29,167 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 67 [2018-12-08 17:37:29,198 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2018-12-08 17:37:29,199 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 17:37:29,210 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 17:37:29,254 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 17:37:29,280 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-08 17:37:29,280 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:114, output treesize:56 [2018-12-08 17:37:29,535 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 17:37:29,536 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 17:37:29,537 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 17:37:29,538 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 17:37:29,539 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 98 [2018-12-08 17:37:29,644 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 71 [2018-12-08 17:37:29,677 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-12-08 17:37:29,677 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 17:37:29,700 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 17:37:29,724 INFO L478 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 25 treesize of output 19 [2018-12-08 17:37:29,730 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 5 [2018-12-08 17:37:29,730 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 17:37:29,734 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 17:37:29,752 INFO L478 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 32 treesize of output 24 [2018-12-08 17:37:29,758 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2018-12-08 17:37:29,759 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-08 17:37:29,768 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 17:37:29,778 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 17:37:29,791 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 17:37:29,791 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:82, output treesize:28 [2018-12-08 17:37:30,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:37:30,156 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 17:37:30,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:37:30,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-12-08 17:37:30,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-08 17:37:30,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-08 17:37:30,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-12-08 17:37:30,165 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 13 states. [2018-12-08 17:37:31,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:37:31,440 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2018-12-08 17:37:31,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-08 17:37:31,440 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2018-12-08 17:37:31,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:37:31,440 INFO L225 Difference]: With dead ends: 26 [2018-12-08 17:37:31,440 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 17:37:31,441 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2018-12-08 17:37:31,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 17:37:31,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 17:37:31,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 17:37:31,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 17:37:31,442 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-12-08 17:37:31,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:37:31,442 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 17:37:31,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-08 17:37:31,442 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 17:37:31,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 17:37:31,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 17:37:31,507 INFO L448 ceAbstractionStarter]: For program point fabs_doubleEXIT(lines 44 58) no Hoare annotation was computed. [2018-12-08 17:37:31,507 INFO L451 ceAbstractionStarter]: At program point fabs_doubleENTRY(lines 44 58) the Hoare annotation is: true [2018-12-08 17:37:31,507 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 56) no Hoare annotation was computed. [2018-12-08 17:37:31,508 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 44 58) no Hoare annotation was computed. [2018-12-08 17:37:31,508 INFO L448 ceAbstractionStarter]: For program point L51-2(lines 51 56) no Hoare annotation was computed. [2018-12-08 17:37:31,508 INFO L448 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2018-12-08 17:37:31,508 INFO L444 ceAbstractionStarter]: At program point L46-2(lines 46 50) the Hoare annotation is: (= |fabs_double_#in~x| fabs_double_~x) [2018-12-08 17:37:31,508 INFO L448 ceAbstractionStarter]: For program point fabs_doubleFINAL(lines 44 58) no Hoare annotation was computed. [2018-12-08 17:37:31,508 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 17:37:31,508 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-08 17:37:31,508 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 17:37:31,509 INFO L448 ceAbstractionStarter]: For program point L32-1(lines 32 37) no Hoare annotation was computed. [2018-12-08 17:37:31,509 INFO L444 ceAbstractionStarter]: At program point L32-2(lines 32 37) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-12-08 17:37:31,509 INFO L448 ceAbstractionStarter]: For program point L32-3(lines 32 37) no Hoare annotation was computed. [2018-12-08 17:37:31,509 INFO L448 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 30 42) no Hoare annotation was computed. [2018-12-08 17:37:31,509 INFO L448 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 30 42) no Hoare annotation was computed. [2018-12-08 17:37:31,509 INFO L451 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 30 42) the Hoare annotation is: true [2018-12-08 17:37:31,509 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 17:37:31,509 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 17:37:31,509 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 17:37:31,510 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 17:37:31,510 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2018-12-08 17:37:31,510 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 60 78) the Hoare annotation is: true [2018-12-08 17:37:31,510 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 60 78) no Hoare annotation was computed. [2018-12-08 17:37:31,510 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-08 17:37:31,510 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 60 78) no Hoare annotation was computed. [2018-12-08 17:37:31,511 INFO L444 ceAbstractionStarter]: At program point L72(line 72) the Hoare annotation is: (and (exists ((|v_q#valueAsBitvector_4| (_ BitVec 64)) (|v_q#valueAsBitvector_5| (_ BitVec 64)) (v_prenex_7 (_ BitVec 64))) (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53))) (.cse1 ((_ extract 63 32) v_prenex_7))) (and (= (fp ((_ extract 63 63) |v_q#valueAsBitvector_5|) ((_ extract 62 52) |v_q#valueAsBitvector_5|) ((_ extract 51 0) |v_q#valueAsBitvector_5|)) .cse0) (= ((_ extract 31 0) v_prenex_7) ((_ extract 31 0) |v_q#valueAsBitvector_4|)) (= .cse1 ((_ extract 63 32) |v_q#valueAsBitvector_4|)) (= .cse0 (fp ((_ extract 63 63) v_prenex_7) ((_ extract 62 52) v_prenex_7) ((_ extract 51 0) v_prenex_7))) (= (let ((.cse2 (concat (bvand (_ bv2147483647 32) .cse1) ((_ extract 31 0) |v_q#valueAsBitvector_5|)))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))) main_~res~0)))) (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53)))) [2018-12-08 17:37:31,511 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 72 75) no Hoare annotation was computed. [2018-12-08 17:37:31,511 INFO L444 ceAbstractionStarter]: At program point L69(line 69) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53))) [2018-12-08 17:37:31,511 INFO L448 ceAbstractionStarter]: For program point L69-1(line 69) no Hoare annotation was computed. [2018-12-08 17:37:31,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 05:37:31 BoogieIcfgContainer [2018-12-08 17:37:31,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 17:37:31,521 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 17:37:31,521 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 17:37:31,522 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 17:37:31,522 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:37:28" (3/4) ... [2018-12-08 17:37:31,525 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 17:37:31,530 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2018-12-08 17:37:31,530 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 17:37:31,530 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-12-08 17:37:31,531 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 17:37:31,534 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-08 17:37:31,535 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-08 17:37:31,535 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 17:37:31,552 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-08 17:37:31,553 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-08 17:37:31,564 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bd56a347-ff02-4c73-80ea-2117acf7faa0/bin-2019/uautomizer/witness.graphml [2018-12-08 17:37:31,564 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 17:37:31,564 INFO L168 Benchmark]: Toolchain (without parser) took 3758.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 943.4 MB in the beginning and 910.6 MB in the end (delta: 32.7 MB). Peak memory consumption was 168.0 MB. Max. memory is 11.5 GB. [2018-12-08 17:37:31,565 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:37:31,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.20 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 17:37:31,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.86 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:37:31,566 INFO L168 Benchmark]: Boogie Preprocessor took 51.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-08 17:37:31,566 INFO L168 Benchmark]: RCFGBuilder took 218.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-12-08 17:37:31,567 INFO L168 Benchmark]: TraceAbstraction took 3265.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.6 MB in the end (delta: 194.6 MB). Peak memory consumption was 194.6 MB. Max. memory is 11.5 GB. [2018-12-08 17:37:31,567 INFO L168 Benchmark]: Witness Printer took 42.43 ms. Allocated memory is still 1.2 GB. Free memory is still 910.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:37:31,569 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 161.20 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.86 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 218.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3265.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.6 MB in the end (delta: 194.6 MB). Peak memory consumption was 194.6 MB. Max. memory is 11.5 GB. * Witness Printer took 42.43 ms. Allocated memory is still 1.2 GB. Free memory is still 910.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 73]: 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: 46]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 7 SDslu, 129 SDs, 0 SdLazy, 84 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 96 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 45 ConstructedInterpolants, 13 QuantifiedInterpolants, 19305 SizeOfPredicates, 7 NumberOfNonLiveVariables, 137 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...