./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c -s /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c154d02c9b21beef7a386877c7c252d45eb859a ........................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c -s /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c154d02c9b21beef7a386877c7c252d45eb859a ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:54:00,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:54:00,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:54:00,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:54:00,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:54:00,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:54:00,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:54:00,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:54:00,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:54:00,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:54:00,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:54:00,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:54:00,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:54:00,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:54:00,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:54:00,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:54:00,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:54:00,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:54:00,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:54:00,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:54:00,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:54:00,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:54:00,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:54:00,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:54:00,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:54:00,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:54:00,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:54:00,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:54:00,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:54:00,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:54:00,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:54:00,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:54:00,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:54:00,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:54:00,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:54:00,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:54:00,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:54:00,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:54:00,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:54:00,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:54:00,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:54:00,676 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:54:00,714 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:54:00,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:54:00,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:54:00,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:54:00,716 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:54:00,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:54:00,717 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:54:00,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:54:00,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:54:00,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:54:00,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:54:00,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:54:00,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:54:00,719 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:54:00,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:54:00,720 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:54:00,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:54:00,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:54:00,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:54:00,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:54:00,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:54:00,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:54:00,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:54:00,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:54:00,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:54:00,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:54:00,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:54:00,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:54:00,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:54:00,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c154d02c9b21beef7a386877c7c252d45eb859a [2020-11-29 19:54:00,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:54:01,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:54:01,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:54:01,047 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:54:01,050 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:54:01,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2020-11-29 19:54:01,152 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/data/eb0f7d382/611f4fa2731f4b60a38214d5aa1229e0/FLAG5af00ed79 [2020-11-29 19:54:01,791 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:54:01,791 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2020-11-29 19:54:01,800 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/data/eb0f7d382/611f4fa2731f4b60a38214d5aa1229e0/FLAG5af00ed79 [2020-11-29 19:54:02,147 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/data/eb0f7d382/611f4fa2731f4b60a38214d5aa1229e0 [2020-11-29 19:54:02,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:54:02,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:54:02,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:54:02,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:54:02,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:54:02,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:54:02" (1/1) ... [2020-11-29 19:54:02,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53abe392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:02, skipping insertion in model container [2020-11-29 19:54:02,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:54:02" (1/1) ... [2020-11-29 19:54:02,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:54:02,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:54:02,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:54:02,503 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:54:02,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:54:02,581 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:54:02,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:02 WrapperNode [2020-11-29 19:54:02,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:54:02,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:54:02,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:54:02,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:54:02,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:02" (1/1) ... [2020-11-29 19:54:02,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:02" (1/1) ... [2020-11-29 19:54:02,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:54:02,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:54:02,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:54:02,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:54:02,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:02" (1/1) ... [2020-11-29 19:54:02,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:02" (1/1) ... [2020-11-29 19:54:02,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:02" (1/1) ... [2020-11-29 19:54:02,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:02" (1/1) ... [2020-11-29 19:54:02,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:02" (1/1) ... [2020-11-29 19:54:02,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:02" (1/1) ... [2020-11-29 19:54:02,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:02" (1/1) ... [2020-11-29 19:54:02,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:54:02,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:54:02,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:54:02,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:54:02,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:54:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:54:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:54:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 19:54:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:54:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 19:54:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:54:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:54:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:54:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:54:03,579 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:54:03,580 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-29 19:54:03,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:54:03 BoogieIcfgContainer [2020-11-29 19:54:03,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:54:03,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:54:03,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:54:03,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:54:03,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:54:02" (1/3) ... [2020-11-29 19:54:03,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c07c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:54:03, skipping insertion in model container [2020-11-29 19:54:03,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:02" (2/3) ... [2020-11-29 19:54:03,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c07c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:54:03, skipping insertion in model container [2020-11-29 19:54:03,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:54:03" (3/3) ... [2020-11-29 19:54:03,594 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2020-11-29 19:54:03,608 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:54:03,613 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:54:03,627 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:54:03,657 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:54:03,657 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:54:03,658 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:54:03,658 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:54:03,658 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:54:03,658 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:54:03,659 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:54:03,659 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:54:03,675 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-11-29 19:54:03,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:54:03,681 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:54:03,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:54:03,683 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:54:03,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:54:03,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2020-11-29 19:54:03,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:54:03,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177668561] [2020-11-29 19:54:03,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:54:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:54:03,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:54:03,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177668561] [2020-11-29 19:54:03,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:54:03,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:54:03,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339002336] [2020-11-29 19:54:03,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:54:03,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:54:03,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:54:03,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:54:03,891 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-11-29 19:54:03,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:54:03,913 INFO L93 Difference]: Finished difference Result 87 states and 141 transitions. [2020-11-29 19:54:03,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:54:03,915 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 19:54:03,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:54:03,927 INFO L225 Difference]: With dead ends: 87 [2020-11-29 19:54:03,927 INFO L226 Difference]: Without dead ends: 41 [2020-11-29 19:54:03,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:54:03,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-29 19:54:03,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-29 19:54:03,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-29 19:54:03,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2020-11-29 19:54:03,973 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2020-11-29 19:54:03,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:54:03,974 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2020-11-29 19:54:03,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:54:03,974 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-11-29 19:54:03,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:54:03,975 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:54:03,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:54:03,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:54:03,976 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:54:03,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:54:03,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2020-11-29 19:54:03,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:54:03,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276022807] [2020-11-29 19:54:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:54:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:04,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:54:04,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:54:04,125 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:54:04,125 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:54:04,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:54:04,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:54:04 BoogieIcfgContainer [2020-11-29 19:54:04,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:54:04,205 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:54:04,205 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:54:04,205 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:54:04,206 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:54:03" (3/4) ... [2020-11-29 19:54:04,209 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:54:04,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:54:04,222 INFO L168 Benchmark]: Toolchain (without parser) took 2066.63 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 66.5 MB in the beginning and 66.7 MB in the end (delta: -239.4 kB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:04,224 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 94.4 MB. Free memory is still 52.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:54:04,226 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.70 ms. Allocated memory is still 94.4 MB. Free memory was 66.3 MB in the beginning and 67.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:04,227 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.73 ms. Allocated memory is still 94.4 MB. Free memory was 67.7 MB in the beginning and 65.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:04,228 INFO L168 Benchmark]: Boogie Preprocessor took 74.08 ms. Allocated memory is still 94.4 MB. Free memory was 65.5 MB in the beginning and 63.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:04,229 INFO L168 Benchmark]: RCFGBuilder took 824.55 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 63.5 MB in the beginning and 91.9 MB in the end (delta: -28.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:04,230 INFO L168 Benchmark]: TraceAbstraction took 619.76 ms. Allocated memory is still 121.6 MB. Free memory was 91.3 MB in the beginning and 66.7 MB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:04,232 INFO L168 Benchmark]: Witness Printer took 4.93 ms. Allocated memory is still 121.6 MB. Free memory is still 66.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:54:04,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 94.4 MB. Free memory is still 52.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 421.70 ms. Allocated memory is still 94.4 MB. Free memory was 66.3 MB in the beginning and 67.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.73 ms. Allocated memory is still 94.4 MB. Free memory was 67.7 MB in the beginning and 65.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.08 ms. Allocated memory is still 94.4 MB. Free memory was 65.5 MB in the beginning and 63.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 824.55 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 63.5 MB in the beginning and 91.9 MB in the end (delta: -28.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 619.76 ms. Allocated memory is still 121.6 MB. Free memory was 91.3 MB in the beginning and 66.7 MB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.93 ms. Allocated memory is still 121.6 MB. Free memory is still 66.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 146, overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 117. Possible FailurePath: [L13-L17] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L19] static const float zero_log = 0.0; [L99-L102] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L104] static const float zero = 0.0; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L155] float x = 0.0f / 0.0f; [L107] float y, z; [L108] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L111] ieee_float_shape_type gf_u; [L112] gf_u.value = (x) [L113] EXPR gf_u.word [L113] (hx) = gf_u.word [L116] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L117] COND TRUE ((hx & 0x7fffffff) == 0) [L118] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L156] float res = __ieee754_log10f(x); [L146] return x != x; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L159] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0971.c", 3, "reach_error") VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 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=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:54:07,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:54:07,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:54:07,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:54:07,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:54:07,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:54:07,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:54:07,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:54:07,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:54:07,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:54:07,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:54:07,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:54:07,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:54:07,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:54:07,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:54:07,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:54:07,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:54:07,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:54:07,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:54:07,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:54:07,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:54:07,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:54:07,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:54:07,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:54:07,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:54:07,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:54:07,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:54:07,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:54:07,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:54:07,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:54:07,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:54:07,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:54:07,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:54:07,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:54:07,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:54:07,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:54:07,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:54:07,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:54:07,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:54:07,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:54:07,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:54:07,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 19:54:07,223 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:54:07,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:54:07,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:54:07,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:54:07,227 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:54:07,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:54:07,228 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:54:07,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:54:07,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:54:07,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:54:07,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:54:07,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:54:07,230 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 19:54:07,230 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 19:54:07,230 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:54:07,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:54:07,231 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:54:07,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:54:07,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:54:07,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:54:07,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:54:07,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:54:07,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:54:07,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:54:07,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:54:07,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:54:07,233 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 19:54:07,233 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 19:54:07,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:54:07,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:54:07,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 19:54:07,233 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c154d02c9b21beef7a386877c7c252d45eb859a [2020-11-29 19:54:07,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:54:07,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:54:07,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:54:07,677 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:54:07,682 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:54:07,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2020-11-29 19:54:07,763 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/data/391241d00/569164fd32a542d385dce041ccc9143c/FLAGb883dfcb9 [2020-11-29 19:54:08,294 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:54:08,295 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2020-11-29 19:54:08,306 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/data/391241d00/569164fd32a542d385dce041ccc9143c/FLAGb883dfcb9 [2020-11-29 19:54:08,637 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/data/391241d00/569164fd32a542d385dce041ccc9143c [2020-11-29 19:54:08,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:54:08,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:54:08,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:54:08,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:54:08,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:54:08,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:54:08" (1/1) ... [2020-11-29 19:54:08,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f73a81a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:08, skipping insertion in model container [2020-11-29 19:54:08,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:54:08" (1/1) ... [2020-11-29 19:54:08,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:54:08,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:54:08,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:54:08,969 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:54:09,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:54:09,126 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:54:09,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:09 WrapperNode [2020-11-29 19:54:09,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:54:09,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:54:09,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:54:09,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:54:09,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:09" (1/1) ... [2020-11-29 19:54:09,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:09" (1/1) ... [2020-11-29 19:54:09,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:54:09,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:54:09,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:54:09,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:54:09,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:09" (1/1) ... [2020-11-29 19:54:09,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:09" (1/1) ... [2020-11-29 19:54:09,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:09" (1/1) ... [2020-11-29 19:54:09,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:09" (1/1) ... [2020-11-29 19:54:09,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:09" (1/1) ... [2020-11-29 19:54:09,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:09" (1/1) ... [2020-11-29 19:54:09,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:09" (1/1) ... [2020-11-29 19:54:09,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:54:09,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:54:09,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:54:09,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:54:09,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:54:09,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 19:54:09,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:54:09,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 19:54:09,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 19:54:09,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:54:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:54:09,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 19:54:09,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 19:54:09,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:54:26,386 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:54:26,387 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-29 19:54:26,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:54:26 BoogieIcfgContainer [2020-11-29 19:54:26,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:54:26,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:54:26,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:54:26,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:54:26,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:54:08" (1/3) ... [2020-11-29 19:54:26,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681646b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:54:26, skipping insertion in model container [2020-11-29 19:54:26,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:54:09" (2/3) ... [2020-11-29 19:54:26,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681646b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:54:26, skipping insertion in model container [2020-11-29 19:54:26,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:54:26" (3/3) ... [2020-11-29 19:54:26,400 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2020-11-29 19:54:26,414 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:54:26,419 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:54:26,434 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:54:26,463 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:54:26,463 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:54:26,464 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:54:26,464 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:54:26,464 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:54:26,464 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:54:26,465 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:54:26,465 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:54:26,480 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-11-29 19:54:26,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:54:26,486 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:54:26,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:54:26,488 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:54:26,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:54:26,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2020-11-29 19:54:26,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:54:26,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408339873] [2020-11-29 19:54:26,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 19:54:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:54:27,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 19:54:27,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:54:27,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:54:27,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:54:27,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:54:27,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408339873] [2020-11-29 19:54:27,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:54:27,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 19:54:27,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118270287] [2020-11-29 19:54:27,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:54:27,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:54:27,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:54:27,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:54:27,552 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-11-29 19:54:27,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:54:27,578 INFO L93 Difference]: Finished difference Result 87 states and 141 transitions. [2020-11-29 19:54:27,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:54:27,579 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 19:54:27,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:54:27,591 INFO L225 Difference]: With dead ends: 87 [2020-11-29 19:54:27,591 INFO L226 Difference]: Without dead ends: 41 [2020-11-29 19:54:27,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:54:27,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-29 19:54:27,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-29 19:54:27,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-29 19:54:27,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2020-11-29 19:54:27,639 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2020-11-29 19:54:27,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:54:27,640 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2020-11-29 19:54:27,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:54:27,640 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-11-29 19:54:27,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:54:27,641 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:54:27,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:54:27,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 19:54:27,867 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:54:27,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:54:27,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2020-11-29 19:54:27,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:54:27,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537626822] [2020-11-29 19:54:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 19:54:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:54:28,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 19:54:28,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:54:28,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:54:28,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:54:28,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:54:28,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537626822] [2020-11-29 19:54:28,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:54:28,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-29 19:54:28,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255608378] [2020-11-29 19:54:28,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:54:28,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:54:28,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:54:28,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:54:28,989 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand 6 states. [2020-11-29 19:54:30,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:54:30,086 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2020-11-29 19:54:30,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:54:30,087 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-11-29 19:54:30,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:54:30,088 INFO L225 Difference]: With dead ends: 51 [2020-11-29 19:54:30,089 INFO L226 Difference]: Without dead ends: 46 [2020-11-29 19:54:30,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-29 19:54:30,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-29 19:54:30,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2020-11-29 19:54:30,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-29 19:54:30,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2020-11-29 19:54:30,100 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 10 [2020-11-29 19:54:30,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:54:30,101 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2020-11-29 19:54:30,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:54:30,101 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2020-11-29 19:54:30,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:54:30,102 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:54:30,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:54:30,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 19:54:30,326 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:54:30,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:54:30,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2020-11-29 19:54:30,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:54:30,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124815726] [2020-11-29 19:54:30,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 19:54:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:54:31,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 19:54:31,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:54:31,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:54:31,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:54:36,608 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-11-29 19:54:36,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:54:36,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124815726] [2020-11-29 19:54:36,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:54:36,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-29 19:54:36,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244382307] [2020-11-29 19:54:36,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 19:54:36,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:54:36,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 19:54:36,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-29 19:54:36,636 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand 10 states. [2020-11-29 19:54:59,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:54:59,821 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2020-11-29 19:54:59,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 19:54:59,866 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-11-29 19:54:59,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:54:59,867 INFO L225 Difference]: With dead ends: 47 [2020-11-29 19:54:59,867 INFO L226 Difference]: Without dead ends: 42 [2020-11-29 19:54:59,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-29 19:54:59,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-29 19:54:59,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-11-29 19:54:59,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-29 19:54:59,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2020-11-29 19:54:59,878 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 11 [2020-11-29 19:54:59,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:54:59,879 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2020-11-29 19:54:59,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 19:54:59,879 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2020-11-29 19:54:59,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 19:54:59,880 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:54:59,881 INFO L422 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] [2020-11-29 19:55:00,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 19:55:00,090 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:55:00,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:55:00,090 INFO L82 PathProgramCache]: Analyzing trace with hash -256490092, now seen corresponding path program 1 times [2020-11-29 19:55:00,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:55:00,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366899796] [2020-11-29 19:55:00,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 19:55:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:55:01,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 19:55:01,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:55:01,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:55:01,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:55:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:55:01,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366899796] [2020-11-29 19:55:01,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:55:01,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 19:55:01,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442813836] [2020-11-29 19:55:01,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 19:55:01,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:55:01,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 19:55:01,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-29 19:55:01,483 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand 8 states. [2020-11-29 19:55:01,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:55:01,623 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2020-11-29 19:55:01,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:55:01,623 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-11-29 19:55:01,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:55:01,623 INFO L225 Difference]: With dead ends: 41 [2020-11-29 19:55:01,624 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:55:01,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-29 19:55:01,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:55:01,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:55:01,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:55:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:55:01,625 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-11-29 19:55:01,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:55:01,625 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:55:01,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 19:55:01,625 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:55:01,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:55:01,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 19:55:01,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:55:02,117 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 27 [2020-11-29 19:55:02,244 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 24 [2020-11-29 19:55:02,248 INFO L274 CegarLoopResult]: For program point L159(lines 159 162) no Hoare annotation was computed. [2020-11-29 19:55:02,249 INFO L274 CegarLoopResult]: For program point L126-1(lines 126 130) no Hoare annotation was computed. [2020-11-29 19:55:02,249 INFO L270 CegarLoopResult]: At program point L126-2(lines 126 130) the Hoare annotation is: false [2020-11-29 19:55:02,249 INFO L274 CegarLoopResult]: For program point L110-1(lines 110 114) no Hoare annotation was computed. [2020-11-29 19:55:02,249 INFO L270 CegarLoopResult]: At program point L110-2(lines 110 114) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_log10f_~x) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-29 19:55:02,249 INFO L274 CegarLoopResult]: For program point L110-3(lines 110 114) no Hoare annotation was computed. [2020-11-29 19:55:02,249 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-29 19:55:02,250 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 19:55:02,250 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 19:55:02,250 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:55:02,250 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:55:02,250 INFO L274 CegarLoopResult]: For program point L119(lines 119 120) no Hoare annotation was computed. [2020-11-29 19:55:02,250 INFO L274 CegarLoopResult]: For program point L86(lines 86 90) no Hoare annotation was computed. [2020-11-29 19:55:02,251 INFO L274 CegarLoopResult]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2020-11-29 19:55:02,251 INFO L270 CegarLoopResult]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2020-11-29 19:55:02,251 INFO L274 CegarLoopResult]: For program point L136-3(lines 136 140) no Hoare annotation was computed. [2020-11-29 19:55:02,251 INFO L270 CegarLoopResult]: At program point L95(lines 21 97) the Hoare annotation is: false [2020-11-29 19:55:02,251 INFO L274 CegarLoopResult]: For program point L38(lines 38 46) no Hoare annotation was computed. [2020-11-29 19:55:02,251 INFO L274 CegarLoopResult]: For program point L38-1(lines 38 46) no Hoare annotation was computed. [2020-11-29 19:55:02,251 INFO L274 CegarLoopResult]: For program point L121(lines 121 122) no Hoare annotation was computed. [2020-11-29 19:55:02,252 INFO L270 CegarLoopResult]: At program point L146(line 146) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (not (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10f_~hx~0) (_ bv0 32))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_log10f_~x) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-29 19:55:02,252 INFO L277 CegarLoopResult]: At program point L164(lines 148 165) the Hoare annotation is: true [2020-11-29 19:55:02,252 INFO L274 CegarLoopResult]: For program point L32(lines 32 33) no Hoare annotation was computed. [2020-11-29 19:55:02,252 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:55:02,252 INFO L274 CegarLoopResult]: For program point L123(lines 123 131) no Hoare annotation was computed. [2020-11-29 19:55:02,252 INFO L274 CegarLoopResult]: For program point L123-1(lines 123 131) no Hoare annotation was computed. [2020-11-29 19:55:02,253 INFO L274 CegarLoopResult]: For program point L57(lines 57 73) no Hoare annotation was computed. [2020-11-29 19:55:02,253 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 19:55:02,253 INFO L274 CegarLoopResult]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2020-11-29 19:55:02,253 INFO L270 CegarLoopResult]: At program point L41-2(lines 41 45) the Hoare annotation is: false [2020-11-29 19:55:02,253 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:55:02,253 INFO L274 CegarLoopResult]: For program point L58(lines 58 65) no Hoare annotation was computed. [2020-11-29 19:55:02,254 INFO L274 CegarLoopResult]: For program point L25-1(lines 25 29) no Hoare annotation was computed. [2020-11-29 19:55:02,254 INFO L270 CegarLoopResult]: At program point L25-2(lines 25 29) the Hoare annotation is: false [2020-11-29 19:55:02,254 INFO L274 CegarLoopResult]: For program point L25-3(lines 25 29) no Hoare annotation was computed. [2020-11-29 19:55:02,254 INFO L274 CegarLoopResult]: For program point L50-1(lines 50 54) no Hoare annotation was computed. [2020-11-29 19:55:02,254 INFO L270 CegarLoopResult]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2020-11-29 19:55:02,254 INFO L274 CegarLoopResult]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2020-11-29 19:55:02,254 INFO L274 CegarLoopResult]: For program point L67(lines 67 72) no Hoare annotation was computed. [2020-11-29 19:55:02,255 INFO L274 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-11-29 19:55:02,255 INFO L274 CegarLoopResult]: For program point L92(lines 92 95) no Hoare annotation was computed. [2020-11-29 19:55:02,255 INFO L274 CegarLoopResult]: For program point L59(lines 59 64) no Hoare annotation was computed. [2020-11-29 19:55:02,255 INFO L274 CegarLoopResult]: For program point L117(lines 117 118) no Hoare annotation was computed. [2020-11-29 19:55:02,255 INFO L274 CegarLoopResult]: For program point L84(lines 84 96) no Hoare annotation was computed. [2020-11-29 19:55:02,255 INFO L270 CegarLoopResult]: At program point L142(lines 106 143) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (not (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10f_~hx~0) (_ bv0 32))) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_log10f_~x) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-29 19:55:02,274 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,277 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,277 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,280 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,285 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,285 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,285 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,295 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,311 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,313 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,313 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,315 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,315 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:55:02 BoogieIcfgContainer [2020-11-29 19:55:02,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:55:02,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:55:02,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:55:02,325 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:55:02,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:54:26" (3/4) ... [2020-11-29 19:55:02,329 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:55:02,349 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-11-29 19:55:02,349 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-29 19:55:02,350 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:55:02,351 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:55:02,384 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32)) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-29 19:55:02,386 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32)) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-29 19:55:02,472 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_768f9ca6-5cee-4bcb-b414-2e2dbe28c76d/bin/uautomizer/witness.graphml [2020-11-29 19:55:02,473 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:55:02,474 INFO L168 Benchmark]: Toolchain (without parser) took 53832.93 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.2 MB in the beginning and 33.4 MB in the end (delta: -6.3 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:02,475 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 50.3 MB. Free memory was 32.3 MB in the beginning and 32.3 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:55:02,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 483.84 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.0 MB in the beginning and 42.1 MB in the end (delta: -15.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:02,476 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.49 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 39.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:02,477 INFO L168 Benchmark]: Boogie Preprocessor took 92.54 ms. Allocated memory is still 60.8 MB. Free memory was 39.7 MB in the beginning and 37.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:02,477 INFO L168 Benchmark]: RCFGBuilder took 17079.39 ms. Allocated memory is still 60.8 MB. Free memory was 37.3 MB in the beginning and 39.8 MB in the end (delta: -2.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:02,478 INFO L168 Benchmark]: TraceAbstraction took 35932.11 ms. Allocated memory is still 60.8 MB. Free memory was 39.6 MB in the beginning and 39.3 MB in the end (delta: 286.9 kB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:02,478 INFO L168 Benchmark]: Witness Printer took 148.54 ms. Allocated memory is still 60.8 MB. Free memory was 39.3 MB in the beginning and 33.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:55:02,481 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 50.3 MB. Free memory was 32.3 MB in the beginning and 32.3 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 483.84 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.0 MB in the beginning and 42.1 MB in the end (delta: -15.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.49 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 39.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.54 ms. Allocated memory is still 60.8 MB. Free memory was 39.7 MB in the beginning and 37.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 17079.39 ms. Allocated memory is still 60.8 MB. Free memory was 37.3 MB in the beginning and 39.8 MB in the end (delta: -2.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 35932.11 ms. Allocated memory is still 60.8 MB. Free memory was 39.6 MB in the beginning and 39.3 MB in the end (delta: 286.9 kB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * Witness Printer took 148.54 ms. Allocated memory is still 60.8 MB. Free memory was 39.3 MB in the beginning and 33.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2020-11-29 19:55:02,499 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,501 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,501 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,501 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,502 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,502 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,502 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,503 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant [2020-11-29 19:55:02,515 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,515 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,515 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,518 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,520 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32)) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 106]: Loop Invariant [2020-11-29 19:55:02,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,527 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,527 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,527 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,527 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,528 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,528 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:55:02,528 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:55:02,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32)) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 35.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 24.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 138 SDtfs, 161 SDslu, 280 SDs, 0 SdLazy, 137 SolverSat, 12 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 22.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 101 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 10 FomulaSimplificationsInter, 89 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 12 QuantifiedInterpolants, 6858 SizeOfPredicates, 24 NumberOfNonLiveVariables, 271 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...