./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.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_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/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 d8b47ecdb704e16d352286b75129bb9ac82f6df5 ........................................................................................................................................................................................................................................................................................................ 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_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/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 d8b47ecdb704e16d352286b75129bb9ac82f6df5 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:31:54,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:31:54,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:31:54,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:31:54,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:31:54,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:31:54,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:31:54,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:31:54,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:31:54,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:31:54,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:31:54,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:31:54,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:31:54,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:31:54,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:31:54,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:31:54,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:31:54,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:31:54,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:31:54,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:31:54,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:31:54,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:31:54,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:31:54,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:31:54,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:31:54,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:31:54,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:31:54,620 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:31:54,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:31:54,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:31:54,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:31:54,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:31:54,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:31:54,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:31:54,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:31:54,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:31:54,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:31:54,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:31:54,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:31:54,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:31:54,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:31:54,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:31:54,666 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:31:54,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:31:54,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:31:54,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:31:54,669 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:31:54,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:31:54,670 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:31:54,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:31:54,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:31:54,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:31:54,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:31:54,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:31:54,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:31:54,672 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:31:54,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:31:54,673 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:31:54,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:31:54,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:31:54,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:31:54,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:31:54,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:31:54,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:31:54,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:31:54,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:31:54,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:31:54,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:31:54,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:31:54,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:31:54,677 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:31:54,677 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_4564f30e-9286-454a-9c66-402d4e68935d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b47ecdb704e16d352286b75129bb9ac82f6df5 [2020-11-30 00:31:54,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:31:55,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:31:55,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:31:55,017 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:31:55,019 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:31:55,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2020-11-30 00:31:55,112 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/data/4f8445098/73b472c01da04e18861786a319340dc6/FLAG97075c33d [2020-11-30 00:31:55,691 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:31:55,692 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2020-11-30 00:31:55,699 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/data/4f8445098/73b472c01da04e18861786a319340dc6/FLAG97075c33d [2020-11-30 00:31:56,016 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/data/4f8445098/73b472c01da04e18861786a319340dc6 [2020-11-30 00:31:56,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:31:56,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:31:56,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:31:56,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:31:56,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:31:56,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:31:56" (1/1) ... [2020-11-30 00:31:56,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507fe8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:56, skipping insertion in model container [2020-11-30 00:31:56,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:31:56" (1/1) ... [2020-11-30 00:31:56,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:31:56,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:31:56,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:31:56,324 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:31:56,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:31:56,378 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:31:56,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:56 WrapperNode [2020-11-30 00:31:56,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:31:56,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:31:56,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:31:56,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:31:56,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:56" (1/1) ... [2020-11-30 00:31:56,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:56" (1/1) ... [2020-11-30 00:31:56,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:31:56,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:31:56,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:31:56,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:31:56,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:56" (1/1) ... [2020-11-30 00:31:56,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:56" (1/1) ... [2020-11-30 00:31:56,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:56" (1/1) ... [2020-11-30 00:31:56,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:56" (1/1) ... [2020-11-30 00:31:56,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:56" (1/1) ... [2020-11-30 00:31:56,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:56" (1/1) ... [2020-11-30 00:31:56,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:56" (1/1) ... [2020-11-30 00:31:56,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:31:56,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:31:56,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:31:56,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:31:56,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:31:56,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:31:56,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:31:56,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:31:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 00:31:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 00:31:56,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:31:56,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:31:56,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:31:56,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-30 00:31:56,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:31:57,151 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:31:57,151 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-11-30 00:31:57,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:31:57 BoogieIcfgContainer [2020-11-30 00:31:57,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:31:57,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:31:57,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:31:57,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:31:57,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:31:56" (1/3) ... [2020-11-30 00:31:57,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2948cf71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:31:57, skipping insertion in model container [2020-11-30 00:31:57,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:31:56" (2/3) ... [2020-11-30 00:31:57,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2948cf71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:31:57, skipping insertion in model container [2020-11-30 00:31:57,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:31:57" (3/3) ... [2020-11-30 00:31:57,166 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2020-11-30 00:31:57,177 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:31:57,181 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:31:57,193 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:31:57,218 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:31:57,218 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:31:57,219 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:31:57,219 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:31:57,219 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:31:57,219 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:31:57,219 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:31:57,219 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:31:57,233 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-11-30 00:31:57,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:31:57,239 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:31:57,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:31:57,240 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:31:57,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:31:57,248 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2020-11-30 00:31:57,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:31:57,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421812492] [2020-11-30 00:31:57,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:31:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:31:57,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:31:57,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421812492] [2020-11-30 00:31:57,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:31:57,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:31:57,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601706814] [2020-11-30 00:31:57,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:31:57,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:31:57,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:31:57,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:31:57,434 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-11-30 00:31:57,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:31:57,472 INFO L93 Difference]: Finished difference Result 83 states and 139 transitions. [2020-11-30 00:31:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:31:57,473 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 00:31:57,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:31:57,498 INFO L225 Difference]: With dead ends: 83 [2020-11-30 00:31:57,498 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 00:31:57,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:31:57,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 00:31:57,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-30 00:31:57,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-30 00:31:57,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-11-30 00:31:57,539 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2020-11-30 00:31:57,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:31:57,539 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-11-30 00:31:57,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:31:57,540 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-11-30 00:31:57,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:31:57,540 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:31:57,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:31:57,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:31:57,545 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:31:57,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:31:57,548 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2020-11-30 00:31:57,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:31:57,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001901575] [2020-11-30 00:31:57,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:31:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:31:57,712 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:31:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:31:57,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:31:57,802 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:31:57,802 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:31:57,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:31:57,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:31:57 BoogieIcfgContainer [2020-11-30 00:31:57,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:31:57,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:31:57,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:31:57,856 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:31:57,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:31:57" (3/4) ... [2020-11-30 00:31:57,859 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:31:57,859 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:31:57,861 INFO L168 Benchmark]: Toolchain (without parser) took 1840.53 ms. Allocated memory was 113.2 MB in the beginning and 157.3 MB in the end (delta: 44.0 MB). Free memory was 88.2 MB in the beginning and 117.0 MB in the end (delta: -28.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:31:57,862 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 113.2 MB. Free memory is still 70.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:31:57,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.61 ms. Allocated memory is still 113.2 MB. Free memory was 88.2 MB in the beginning and 88.0 MB in the end (delta: 219.5 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:31:57,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.77 ms. Allocated memory is still 113.2 MB. Free memory was 88.0 MB in the beginning and 85.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:31:57,864 INFO L168 Benchmark]: Boogie Preprocessor took 40.54 ms. Allocated memory is still 113.2 MB. Free memory was 85.9 MB in the beginning and 84.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:31:57,865 INFO L168 Benchmark]: RCFGBuilder took 680.55 ms. Allocated memory is still 113.2 MB. Free memory was 84.0 MB in the beginning and 59.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:31:57,866 INFO L168 Benchmark]: TraceAbstraction took 695.70 ms. Allocated memory was 113.2 MB in the beginning and 157.3 MB in the end (delta: 44.0 MB). Free memory was 59.5 MB in the beginning and 117.0 MB in the end (delta: -57.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:31:57,866 INFO L168 Benchmark]: Witness Printer took 4.09 ms. Allocated memory is still 157.3 MB. Free memory is still 117.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:31:57,870 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 113.2 MB. Free memory is still 70.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 358.61 ms. Allocated memory is still 113.2 MB. Free memory was 88.2 MB in the beginning and 88.0 MB in the end (delta: 219.5 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.77 ms. Allocated memory is still 113.2 MB. Free memory was 88.0 MB in the beginning and 85.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.54 ms. Allocated memory is still 113.2 MB. Free memory was 85.9 MB in the beginning and 84.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 680.55 ms. Allocated memory is still 113.2 MB. Free memory was 84.0 MB in the beginning and 59.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 695.70 ms. Allocated memory was 113.2 MB in the beginning and 157.3 MB in the end (delta: 44.0 MB). Free memory was 59.5 MB in the beginning and 117.0 MB in the end (delta: -57.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.09 ms. Allocated memory is still 157.3 MB. Free memory is still 117.0 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 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L119] float x = -1.0f / 0.0f; [L120] float y = __VERIFIER_nondet_float(); [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={9:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L121] float res = fmod_float(x, y); [L110] return x != x; VAL [one_fmod=1, Zero_fmod={9:0}] [L124] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_1122b.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 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=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:32:00,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:32:00,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:32:00,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:32:00,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:32:00,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:32:00,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:32:00,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:32:00,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:32:00,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:32:00,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:32:00,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:32:00,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:32:00,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:32:00,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:32:00,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:32:00,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:32:00,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:32:00,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:32:00,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:32:00,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:32:00,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:32:00,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:32:00,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:32:00,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:32:00,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:32:00,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:32:00,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:32:00,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:32:00,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:32:00,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:32:00,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:32:00,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:32:00,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:32:00,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:32:00,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:32:00,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:32:00,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:32:00,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:32:00,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:32:00,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:32:00,636 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:32:00,680 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:32:00,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:32:00,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:32:00,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:32:00,685 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:32:00,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:32:00,685 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:32:00,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:32:00,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:32:00,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:32:00,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:32:00,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:32:00,688 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:32:00,688 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:32:00,688 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:32:00,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:32:00,688 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:32:00,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:32:00,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:32:00,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:32:00,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:32:00,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:32:00,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:32:00,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:32:00,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:32:00,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:32:00,698 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:32:00,698 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:32:00,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:32:00,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:32:00,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:32:00,699 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_4564f30e-9286-454a-9c66-402d4e68935d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b47ecdb704e16d352286b75129bb9ac82f6df5 [2020-11-30 00:32:01,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:32:01,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:32:01,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:32:01,086 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:32:01,089 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:32:01,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2020-11-30 00:32:01,164 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/data/68adb7f16/93576bd262b047eabc0e147e4d620476/FLAG47824833b [2020-11-30 00:32:01,845 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:32:01,846 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2020-11-30 00:32:01,861 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/data/68adb7f16/93576bd262b047eabc0e147e4d620476/FLAG47824833b [2020-11-30 00:32:02,118 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/data/68adb7f16/93576bd262b047eabc0e147e4d620476 [2020-11-30 00:32:02,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:32:02,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:32:02,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:32:02,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:32:02,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:32:02,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:32:02" (1/1) ... [2020-11-30 00:32:02,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b317208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:02, skipping insertion in model container [2020-11-30 00:32:02,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:32:02" (1/1) ... [2020-11-30 00:32:02,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:32:02,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:32:02,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:32:02,345 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:32:02,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:32:02,399 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:32:02,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:02 WrapperNode [2020-11-30 00:32:02,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:32:02,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:32:02,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:32:02,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:32:02,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:02" (1/1) ... [2020-11-30 00:32:02,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:02" (1/1) ... [2020-11-30 00:32:02,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:32:02,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:32:02,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:32:02,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:32:02,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:02" (1/1) ... [2020-11-30 00:32:02,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:02" (1/1) ... [2020-11-30 00:32:02,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:02" (1/1) ... [2020-11-30 00:32:02,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:02" (1/1) ... [2020-11-30 00:32:02,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:02" (1/1) ... [2020-11-30 00:32:02,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:02" (1/1) ... [2020-11-30 00:32:02,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:02" (1/1) ... [2020-11-30 00:32:02,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:32:02,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:32:02,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:32:02,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:32:02,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:32:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-30 00:32:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:32:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:32:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 00:32:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 00:32:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:32:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:32:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 00:32:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 00:32:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:32:05,150 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:32:05,156 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-11-30 00:32:05,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:32:05 BoogieIcfgContainer [2020-11-30 00:32:05,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:32:05,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:32:05,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:32:05,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:32:05,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:32:02" (1/3) ... [2020-11-30 00:32:05,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138539ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:32:05, skipping insertion in model container [2020-11-30 00:32:05,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:32:02" (2/3) ... [2020-11-30 00:32:05,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138539ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:32:05, skipping insertion in model container [2020-11-30 00:32:05,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:32:05" (3/3) ... [2020-11-30 00:32:05,175 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2020-11-30 00:32:05,190 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:32:05,196 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:32:05,211 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:32:05,249 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:32:05,249 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:32:05,250 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:32:05,250 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:32:05,250 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:32:05,250 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:32:05,250 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:32:05,251 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:32:05,265 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-11-30 00:32:05,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:32:05,271 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:32:05,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:32:05,273 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:32:05,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:32:05,280 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2020-11-30 00:32:05,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:32:05,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881577171] [2020-11-30 00:32:05,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 00:32:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:32:05,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 00:32:05,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:32:05,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:32:05,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:32:05,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:32:05,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881577171] [2020-11-30 00:32:05,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:32:05,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 00:32:05,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337904870] [2020-11-30 00:32:05,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:32:05,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:32:05,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:32:05,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:32:05,871 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-11-30 00:32:05,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:32:05,912 INFO L93 Difference]: Finished difference Result 83 states and 139 transitions. [2020-11-30 00:32:05,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:32:05,913 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 00:32:05,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:32:05,924 INFO L225 Difference]: With dead ends: 83 [2020-11-30 00:32:05,924 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 00:32:05,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:32:05,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 00:32:05,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-30 00:32:05,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-30 00:32:05,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-11-30 00:32:05,971 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2020-11-30 00:32:05,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:32:05,971 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-11-30 00:32:05,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:32:05,972 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-11-30 00:32:05,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:32:05,974 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:32:05,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:32:06,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:32:06,176 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:32:06,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:32:06,177 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2020-11-30 00:32:06,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:32:06,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752291335] [2020-11-30 00:32:06,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 00:32:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:32:06,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:32:06,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:32:08,200 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-11-30 00:32:09,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:32:09,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:32:13,528 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_float_~x ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-11-30 00:32:13,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:32:13,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752291335] [2020-11-30 00:32:13,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:32:13,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-11-30 00:32:13,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742107768] [2020-11-30 00:32:13,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 00:32:13,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:32:13,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 00:32:13,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2020-11-30 00:32:13,815 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2020-11-30 00:32:16,117 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_fmod_float_~x (fp.div c_currentRoundingMode (fp.neg ((_ to_fp 8 24) c_currentRoundingMode 1.0)) (_ +zero 8 24))) (forall ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_float_~x ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2020-11-30 00:32:20,270 WARN L193 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2020-11-30 00:32:23,788 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2020-11-30 00:32:23,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:32:23,973 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2020-11-30 00:32:23,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:32:23,974 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-11-30 00:32:23,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:32:23,975 INFO L225 Difference]: With dead ends: 44 [2020-11-30 00:32:23,975 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 00:32:23,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=41, Invalid=97, Unknown=2, NotChecked=42, Total=182 [2020-11-30 00:32:23,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 00:32:23,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-30 00:32:23,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-30 00:32:23,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2020-11-30 00:32:23,983 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2020-11-30 00:32:23,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:32:23,983 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2020-11-30 00:32:23,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 00:32:23,983 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2020-11-30 00:32:23,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:32:23,984 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:32:23,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:32:24,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:32:24,197 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:32:24,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:32:24,199 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2020-11-30 00:32:24,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:32:24,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879199612] [2020-11-30 00:32:24,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 00:32:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:32:24,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 00:32:24,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:32:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:32:24,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:32:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:32:24,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879199612] [2020-11-30 00:32:24,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:32:24,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 00:32:24,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934775210] [2020-11-30 00:32:24,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 00:32:24,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:32:24,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 00:32:24,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:32:24,550 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 8 states. [2020-11-30 00:32:24,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:32:24,693 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-11-30 00:32:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:32:24,693 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-11-30 00:32:24,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:32:24,694 INFO L225 Difference]: With dead ends: 39 [2020-11-30 00:32:24,694 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:32:24,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:32:24,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:32:24,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:32:24,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:32:24,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:32:24,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-30 00:32:24,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:32:24,695 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:32:24,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 00:32:24,695 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:32:24,695 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:32:24,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 00:32:24,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:32:25,776 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-11-30 00:32:27,430 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2020-11-30 00:32:27,432 INFO L274 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2020-11-30 00:32:27,433 INFO L274 CegarLoopResult]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2020-11-30 00:32:27,433 INFO L274 CegarLoopResult]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2020-11-30 00:32:27,433 INFO L274 CegarLoopResult]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2020-11-30 00:32:27,433 INFO L270 CegarLoopResult]: At program point L110(line 110) the Hoare annotation is: (and (exists ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (= |ULTIMATE.start_fmod_float_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) ULTIMATE.start_fmod_float_~y))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2020-11-30 00:32:27,433 INFO L274 CegarLoopResult]: For program point L69(lines 69 75) no Hoare annotation was computed. [2020-11-30 00:32:27,433 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-30 00:32:27,434 INFO L270 CegarLoopResult]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2020-11-30 00:32:27,434 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 00:32:27,434 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 00:32:27,434 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:32:27,434 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:32:27,434 INFO L274 CegarLoopResult]: For program point L78(lines 78 80) no Hoare annotation was computed. [2020-11-30 00:32:27,434 INFO L274 CegarLoopResult]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2020-11-30 00:32:27,434 INFO L274 CegarLoopResult]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2020-11-30 00:32:27,434 INFO L274 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2020-11-30 00:32:27,434 INFO L277 CegarLoopResult]: At program point L129(lines 112 130) the Hoare annotation is: true [2020-11-30 00:32:27,434 INFO L274 CegarLoopResult]: For program point L88(lines 88 105) no Hoare annotation was computed. [2020-11-30 00:32:27,435 INFO L274 CegarLoopResult]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2020-11-30 00:32:27,435 INFO L270 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_fmod_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-30 00:32:27,435 INFO L274 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2020-11-30 00:32:27,435 INFO L274 CegarLoopResult]: For program point L48(lines 19 107) no Hoare annotation was computed. [2020-11-30 00:32:27,435 INFO L270 CegarLoopResult]: At program point L106(lines 19 107) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) [2020-11-30 00:32:27,435 INFO L274 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-11-30 00:32:27,435 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:32:27,435 INFO L274 CegarLoopResult]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2020-11-30 00:32:27,435 INFO L270 CegarLoopResult]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2020-11-30 00:32:27,436 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:32:27,436 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2020-11-30 00:32:27,436 INFO L270 CegarLoopResult]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2020-11-30 00:32:27,436 INFO L274 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-11-30 00:32:27,436 INFO L270 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-11-30 00:32:27,436 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:32:27,436 INFO L274 CegarLoopResult]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2020-11-30 00:32:27,436 INFO L274 CegarLoopResult]: For program point L124(lines 124 127) no Hoare annotation was computed. [2020-11-30 00:32:27,436 INFO L274 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-11-30 00:32:27,436 INFO L274 CegarLoopResult]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2020-11-30 00:32:27,437 INFO L274 CegarLoopResult]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2020-11-30 00:32:27,437 INFO L274 CegarLoopResult]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2020-11-30 00:32:27,437 INFO L270 CegarLoopResult]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2020-11-30 00:32:27,437 INFO L274 CegarLoopResult]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2020-11-30 00:32:27,437 INFO L274 CegarLoopResult]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2020-11-30 00:32:27,437 INFO L270 CegarLoopResult]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2020-11-30 00:32:27,459 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,460 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,460 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,460 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,461 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-30 00:32:27,461 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,461 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,461 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-30 00:32:27,466 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,466 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,466 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,467 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-30 00:32:27,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,468 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,468 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-30 00:32:27,472 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:32:27,472 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:32:27,472 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,473 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:32:27,473 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:32:27,474 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:32:27,474 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:32:27,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:32:27 BoogieIcfgContainer [2020-11-30 00:32:27,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:32:27,478 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:32:27,482 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:32:27,482 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:32:27,483 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:32:05" (3/4) ... [2020-11-30 00:32:27,486 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:32:27,501 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:32:27,502 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 00:32:27,502 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:32:27,502 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:32:27,529 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2020-11-30 00:32:27,551 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4564f30e-9286-454a-9c66-402d4e68935d/bin/uautomizer/witness.graphml [2020-11-30 00:32:27,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:32:27,557 INFO L168 Benchmark]: Toolchain (without parser) took 25434.33 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 42.9 MB in the beginning and 41.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:32:27,558 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 62.9 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:32:27,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.92 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 30.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:32:27,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.58 ms. Allocated memory is still 62.9 MB. Free memory was 30.4 MB in the beginning and 45.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:32:27,559 INFO L168 Benchmark]: Boogie Preprocessor took 42.97 ms. Allocated memory is still 62.9 MB. Free memory was 45.6 MB in the beginning and 43.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:32:27,560 INFO L168 Benchmark]: RCFGBuilder took 2654.58 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 41.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:32:27,561 INFO L168 Benchmark]: TraceAbstraction took 22312.24 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 41.4 MB in the beginning and 44.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:32:27,561 INFO L168 Benchmark]: Witness Printer took 77.50 ms. Allocated memory is still 79.7 MB. Free memory was 44.3 MB in the beginning and 41.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:32:27,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 62.9 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.92 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 30.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.58 ms. Allocated memory is still 62.9 MB. Free memory was 30.4 MB in the beginning and 45.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.97 ms. Allocated memory is still 62.9 MB. Free memory was 45.6 MB in the beginning and 43.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2654.58 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 41.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 22312.24 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 41.4 MB in the beginning and 44.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * Witness Printer took 77.50 ms. Allocated memory is still 79.7 MB. Free memory was 44.3 MB in the beginning and 41.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation 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 * 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: 19]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2020-11-30 00:32:27,582 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,590 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,590 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,590 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,590 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-30 00:32:27,591 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,591 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,591 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,591 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-30 00:32:27,592 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,595 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,595 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,595 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-30 00:32:27,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_float_~y : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y), ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y))) && 1bv32 == \result - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2020-11-30 00:32:27,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:32:27,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:32:27,600 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:32:27,601 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:32:27,601 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:32:27,601 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:32:27,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 8 SDslu, 268 SDs, 0 SdLazy, 37 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 16.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 54 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 14 QuantifiedInterpolants, 5069 SizeOfPredicates, 19 NumberOfNonLiveVariables, 196 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...