./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c -s /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8015c985f157600a44233f2d61865f454dda9bb9 ................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c -s /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8015c985f157600a44233f2d61865f454dda9bb9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:38:50,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:38:50,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:38:50,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:38:50,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:38:50,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:38:50,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:38:50,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:38:50,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:38:50,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:38:50,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:38:50,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:38:50,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:38:50,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:38:50,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:38:50,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:38:50,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:38:50,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:38:50,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:38:50,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:38:50,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:38:50,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:38:50,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:38:50,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:38:50,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:38:50,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:38:50,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:38:50,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:38:50,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:38:50,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:38:50,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:38:50,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:38:50,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:38:50,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:38:50,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:38:50,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:38:50,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:38:50,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:38:50,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:38:50,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:38:50,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:38:50,578 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:38:50,608 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:38:50,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:38:50,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:38:50,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:38:50,624 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:38:50,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:38:50,624 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:38:50,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:38:50,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:38:50,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:38:50,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:38:50,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:38:50,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:38:50,626 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:38:50,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:38:50,627 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:38:50,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:38:50,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:38:50,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:38:50,628 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:38:50,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:38:50,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:38:50,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:38:50,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:38:50,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:38:50,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:38:50,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:38:50,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:38:50,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_20f5bc3f-6d57-4ee0-9533-1c035e360325/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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8015c985f157600a44233f2d61865f454dda9bb9 [2019-11-15 23:38:50,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:38:50,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:38:50,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:38:50,703 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:38:50,704 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:38:50,705 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2019-11-15 23:38:50,770 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/data/fd741acce/3aa306f79c854d2b9e9e1c6f2e5ca5a8/FLAG831323000 [2019-11-15 23:38:51,197 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:38:51,198 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2019-11-15 23:38:51,207 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/data/fd741acce/3aa306f79c854d2b9e9e1c6f2e5ca5a8/FLAG831323000 [2019-11-15 23:38:51,596 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/data/fd741acce/3aa306f79c854d2b9e9e1c6f2e5ca5a8 [2019-11-15 23:38:51,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:38:51,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:38:51,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:38:51,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:38:51,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:38:51,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:38:51" (1/1) ... [2019-11-15 23:38:51,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fce80ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:51, skipping insertion in model container [2019-11-15 23:38:51,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:38:51" (1/1) ... [2019-11-15 23:38:51,620 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:38:51,649 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:38:52,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:38:52,054 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:38:52,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:38:52,130 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:38:52,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:52 WrapperNode [2019-11-15 23:38:52,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:38:52,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:38:52,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:38:52,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:38:52,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:52" (1/1) ... [2019-11-15 23:38:52,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:52" (1/1) ... [2019-11-15 23:38:52,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:38:52,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:38:52,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:38:52,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:38:52,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:52" (1/1) ... [2019-11-15 23:38:52,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:52" (1/1) ... [2019-11-15 23:38:52,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:52" (1/1) ... [2019-11-15 23:38:52,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:52" (1/1) ... [2019-11-15 23:38:52,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:52" (1/1) ... [2019-11-15 23:38:52,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:52" (1/1) ... [2019-11-15 23:38:52,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:52" (1/1) ... [2019-11-15 23:38:52,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:38:52,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:38:52,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:38:52,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:38:52,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/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 [2019-11-15 23:38:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:38:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 23:38:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:38:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 23:38:52,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:38:52,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:38:52,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:38:52,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:38:53,040 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:38:53,041 INFO L284 CfgBuilder]: Removed 32 assume(true) statements. [2019-11-15 23:38:53,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:38:53 BoogieIcfgContainer [2019-11-15 23:38:53,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:38:53,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:38:53,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:38:53,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:38:53,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:38:51" (1/3) ... [2019-11-15 23:38:53,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f821ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:38:53, skipping insertion in model container [2019-11-15 23:38:53,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:52" (2/3) ... [2019-11-15 23:38:53,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f821ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:38:53, skipping insertion in model container [2019-11-15 23:38:53,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:38:53" (3/3) ... [2019-11-15 23:38:53,050 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2019-11-15 23:38:53,063 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:38:53,072 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:38:53,084 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:38:53,117 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:38:53,118 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:38:53,118 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:38:53,118 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:38:53,119 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:38:53,119 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:38:53,119 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:38:53,119 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:38:53,141 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2019-11-15 23:38:53,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:38:53,154 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:38:53,155 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:38:53,157 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:38:53,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:38:53,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2019-11-15 23:38:53,173 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:38:53,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694376590] [2019-11-15 23:38:53,174 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:38:53,174 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:38:53,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:38:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:38:53,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:38:53,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694376590] [2019-11-15 23:38:53,297 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:38:53,297 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:38:53,299 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923056824] [2019-11-15 23:38:53,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:38:53,304 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:38:53,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:38:53,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:38:53,318 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2019-11-15 23:38:53,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:38:53,344 INFO L93 Difference]: Finished difference Result 150 states and 248 transitions. [2019-11-15 23:38:53,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:38:53,347 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 23:38:53,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:38:53,360 INFO L225 Difference]: With dead ends: 150 [2019-11-15 23:38:53,360 INFO L226 Difference]: Without dead ends: 73 [2019-11-15 23:38:53,367 INFO L600 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 [2019-11-15 23:38:53,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-11-15 23:38:53,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-11-15 23:38:53,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-11-15 23:38:53,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2019-11-15 23:38:53,426 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2019-11-15 23:38:53,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:38:53,426 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2019-11-15 23:38:53,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:38:53,426 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2019-11-15 23:38:53,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:38:53,427 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:38:53,427 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:38:53,428 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:38:53,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:38:53,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2019-11-15 23:38:53,429 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:38:53,429 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51890169] [2019-11-15 23:38:53,429 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:38:53,429 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:38:53,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:38:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:38:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:38:53,535 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:38:53,535 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:38:53,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:38:53 BoogieIcfgContainer [2019-11-15 23:38:53,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:38:53,578 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:38:53,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:38:53,579 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:38:53,580 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:38:53" (3/4) ... [2019-11-15 23:38:53,583 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:38:53,583 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:38:53,585 INFO L168 Benchmark]: Toolchain (without parser) took 1984.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -138.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:38:53,586 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:38:53,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -210.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:38:53,587 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:38:53,588 INFO L168 Benchmark]: Boogie Preprocessor took 60.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:38:53,589 INFO L168 Benchmark]: RCFGBuilder took 781.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:38:53,590 INFO L168 Benchmark]: TraceAbstraction took 534.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:38:53,590 INFO L168 Benchmark]: Witness Printer took 4.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:38:53,594 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 529.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -210.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 781.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 534.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 182]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 181, overapproximation of someUnaryDOUBLEoperation at line 84, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L81-L88] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L177] float x = 1.0f; [L91] float z, p, q, r, w, s, c, df; [L92] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (x) [L96] EXPR gf_u.word [L96] (hx) = gf_u.word [L98] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L99] COND TRUE ix == 0x3f800000 VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L100] COND TRUE hx > 0 [L101] return 0.0; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L178] float res = __ieee754_acosf(x); [L181] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L181] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L182] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 104 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=76occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 0.1.24-cad4683 [2019-11-15 23:38:56,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:38:56,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:38:56,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:38:56,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:38:56,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:38:56,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:38:56,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:38:56,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:38:56,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:38:56,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:38:56,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:38:56,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:38:56,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:38:56,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:38:56,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:38:56,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:38:56,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:38:56,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:38:56,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:38:56,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:38:56,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:38:56,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:38:56,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:38:56,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:38:56,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:38:56,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:38:56,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:38:56,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:38:56,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:38:56,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:38:56,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:38:56,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:38:56,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:38:56,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:38:56,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:38:56,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:38:56,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:38:56,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:38:56,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:38:56,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:38:56,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:38:56,417 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:38:56,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:38:56,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:38:56,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:38:56,419 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:38:56,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:38:56,420 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:38:56,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:38:56,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:38:56,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:38:56,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:38:56,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:38:56,422 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:38:56,422 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:38:56,422 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:38:56,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:38:56,423 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:38:56,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:38:56,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:38:56,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:38:56,424 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:38:56,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:38:56,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:38:56,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:38:56,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:38:56,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:38:56,426 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:38:56,426 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:38:56,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:38:56,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:38:56,427 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_20f5bc3f-6d57-4ee0-9533-1c035e360325/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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8015c985f157600a44233f2d61865f454dda9bb9 [2019-11-15 23:38:56,462 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:38:56,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:38:56,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:38:56,480 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:38:56,480 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:38:56,481 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2019-11-15 23:38:56,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/data/82b48c706/5ca42f3d6fcf44ada7e045b48c08e5c9/FLAGb6d6d1cb1 [2019-11-15 23:38:57,012 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:38:57,013 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2019-11-15 23:38:57,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/data/82b48c706/5ca42f3d6fcf44ada7e045b48c08e5c9/FLAGb6d6d1cb1 [2019-11-15 23:38:57,398 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/data/82b48c706/5ca42f3d6fcf44ada7e045b48c08e5c9 [2019-11-15 23:38:57,401 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:38:57,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:38:57,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:38:57,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:38:57,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:38:57,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:38:57" (1/1) ... [2019-11-15 23:38:57,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23172392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:57, skipping insertion in model container [2019-11-15 23:38:57,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:38:57" (1/1) ... [2019-11-15 23:38:57,421 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:38:57,473 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:38:57,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:38:57,803 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:38:57,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:38:57,972 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:38:57,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:57 WrapperNode [2019-11-15 23:38:57,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:38:57,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:38:57,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:38:57,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:38:57,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:57" (1/1) ... [2019-11-15 23:38:58,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:57" (1/1) ... [2019-11-15 23:38:58,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:38:58,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:38:58,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:38:58,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:38:58,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:57" (1/1) ... [2019-11-15 23:38:58,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:57" (1/1) ... [2019-11-15 23:38:58,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:57" (1/1) ... [2019-11-15 23:38:58,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:57" (1/1) ... [2019-11-15 23:38:58,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:57" (1/1) ... [2019-11-15 23:38:58,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:57" (1/1) ... [2019-11-15 23:38:58,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:57" (1/1) ... [2019-11-15 23:38:58,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:38:58,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:38:58,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:38:58,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:38:58,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/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 [2019-11-15 23:38:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:38:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-15 23:38:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 23:38:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:38:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:38:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-15 23:38:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 23:38:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:39:09,931 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:39:09,932 INFO L284 CfgBuilder]: Removed 32 assume(true) statements. [2019-11-15 23:39:09,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:39:09 BoogieIcfgContainer [2019-11-15 23:39:09,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:39:09,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:39:09,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:39:09,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:39:09,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:38:57" (1/3) ... [2019-11-15 23:39:09,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e695745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:39:09, skipping insertion in model container [2019-11-15 23:39:09,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:57" (2/3) ... [2019-11-15 23:39:09,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e695745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:39:09, skipping insertion in model container [2019-11-15 23:39:09,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:39:09" (3/3) ... [2019-11-15 23:39:09,941 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2019-11-15 23:39:09,951 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:39:09,958 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:39:09,969 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:39:09,998 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:39:09,999 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:39:09,999 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:39:09,999 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:39:10,000 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:39:10,000 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:39:10,000 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:39:10,000 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:39:10,018 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2019-11-15 23:39:10,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 23:39:10,025 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:39:10,025 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:39:10,026 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:39:10,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:39:10,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2019-11-15 23:39:10,037 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:39:10,038 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828003077] [2019-11-15 23:39:10,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/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 [2019-11-15 23:39:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:39:10,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 23:39:10,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:39:10,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:39:10,157 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:39:10,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:39:10,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828003077] [2019-11-15 23:39:10,163 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:39:10,163 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 23:39:10,164 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745320211] [2019-11-15 23:39:10,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:39:10,169 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:39:10,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:39:10,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:39:10,183 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2019-11-15 23:39:10,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:39:10,214 INFO L93 Difference]: Finished difference Result 150 states and 248 transitions. [2019-11-15 23:39:10,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:39:10,216 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-15 23:39:10,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:39:10,229 INFO L225 Difference]: With dead ends: 150 [2019-11-15 23:39:10,229 INFO L226 Difference]: Without dead ends: 73 [2019-11-15 23:39:10,233 INFO L600 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 [2019-11-15 23:39:10,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-11-15 23:39:10,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-11-15 23:39:10,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-11-15 23:39:10,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2019-11-15 23:39:10,276 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2019-11-15 23:39:10,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:39:10,277 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2019-11-15 23:39:10,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:39:10,277 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2019-11-15 23:39:10,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:39:10,278 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:39:10,278 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:39:10,501 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:39:10,501 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:39:10,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:39:10,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2019-11-15 23:39:10,502 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:39:10,503 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034075777] [2019-11-15 23:39:10,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/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 [2019-11-15 23:39:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:39:10,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:39:10,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:39:10,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:39:10,651 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:39:10,657 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:39:10,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:39:10,683 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034075777] [2019-11-15 23:39:10,684 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:39:10,684 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-11-15 23:39:10,684 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742769665] [2019-11-15 23:39:10,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:39:10,686 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:39:10,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:39:10,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:39:10,687 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand 5 states. [2019-11-15 23:39:19,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:39:19,135 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2019-11-15 23:39:19,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:39:19,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-15 23:39:19,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:39:19,376 INFO L225 Difference]: With dead ends: 85 [2019-11-15 23:39:19,377 INFO L226 Difference]: Without dead ends: 82 [2019-11-15 23:39:19,378 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:39:19,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-11-15 23:39:19,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2019-11-15 23:39:19,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-11-15 23:39:19,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2019-11-15 23:39:19,390 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 11 [2019-11-15 23:39:19,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:39:19,391 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2019-11-15 23:39:19,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:39:19,391 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2019-11-15 23:39:19,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:39:19,392 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:39:19,393 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:39:19,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 23:39:19,594 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:39:19,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:39:19,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1297366718, now seen corresponding path program 1 times [2019-11-15 23:39:19,595 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:39:19,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300945153] [2019-11-15 23:39:19,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/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 [2019-11-15 23:39:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:39:19,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 23:39:19,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:39:19,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:39:19,818 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:39:19,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:39:19,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300945153] [2019-11-15 23:39:19,910 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:39:19,910 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 23:39:19,911 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899966499] [2019-11-15 23:39:19,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:39:19,911 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:39:19,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:39:19,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:39:19,912 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand 6 states. [2019-11-15 23:39:23,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:39:23,397 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2019-11-15 23:39:23,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:39:23,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-15 23:39:23,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:39:23,511 INFO L225 Difference]: With dead ends: 93 [2019-11-15 23:39:23,511 INFO L226 Difference]: Without dead ends: 60 [2019-11-15 23:39:23,512 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:39:23,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-11-15 23:39:23,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2019-11-15 23:39:23,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-11-15 23:39:23,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2019-11-15 23:39:23,521 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 11 [2019-11-15 23:39:23,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:39:23,521 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2019-11-15 23:39:23,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:39:23,522 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2019-11-15 23:39:23,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:39:23,523 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:39:23,523 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:39:23,739 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 23:39:23,740 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:39:23,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:39:23,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1092345056, now seen corresponding path program 1 times [2019-11-15 23:39:23,740 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:39:23,741 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966525230] [2019-11-15 23:39:23,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-15 23:39:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:39:24,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 23:39:24,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:39:24,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:39:24,187 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:39:24,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:39:24,295 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966525230] [2019-11-15 23:39:24,295 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:39:24,295 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-15 23:39:24,296 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790536133] [2019-11-15 23:39:24,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:39:24,296 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:39:24,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:39:24,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:39:24,297 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand 8 states. [2019-11-15 23:39:24,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:39:24,413 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2019-11-15 23:39:24,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:39:24,419 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-15 23:39:24,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:39:24,420 INFO L225 Difference]: With dead ends: 58 [2019-11-15 23:39:24,420 INFO L226 Difference]: Without dead ends: 16 [2019-11-15 23:39:24,421 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:39:24,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-15 23:39:24,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-15 23:39:24,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-15 23:39:24,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2019-11-15 23:39:24,424 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2019-11-15 23:39:24,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:39:24,425 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2019-11-15 23:39:24,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:39:24,425 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2019-11-15 23:39:24,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 23:39:24,426 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:39:24,426 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:39:24,626 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 23:39:24,627 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:39:24,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:39:24,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1064969237, now seen corresponding path program 1 times [2019-11-15 23:39:24,628 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:39:24,628 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478656916] [2019-11-15 23:39:24,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-15 23:39:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:39:24,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 23:39:24,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:39:24,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:39:24,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:39:24,833 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:39:24,835 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:39:24,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:39:24,987 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478656916] [2019-11-15 23:39:24,988 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:39:24,988 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2019-11-15 23:39:24,988 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212037997] [2019-11-15 23:39:24,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 23:39:24,989 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:39:24,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 23:39:24,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:39:24,990 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 12 states. [2019-11-15 23:39:25,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:39:25,155 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-11-15 23:39:25,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:39:25,156 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2019-11-15 23:39:25,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:39:25,156 INFO L225 Difference]: With dead ends: 16 [2019-11-15 23:39:25,156 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:39:25,157 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2019-11-15 23:39:25,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:39:25,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:39:25,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:39:25,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:39:25,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-15 23:39:25,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:39:25,159 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:39:25,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 23:39:25,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:39:25,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:39:25,371 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-15 23:39:25,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 23:39:25,611 INFO L443 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2019-11-15 23:39:25,611 INFO L443 ceAbstractionStarter]: For program point L35-3(lines 35 39) no Hoare annotation was computed. [2019-11-15 23:39:25,611 INFO L443 ceAbstractionStarter]: For program point L35-5(lines 35 39) no Hoare annotation was computed. [2019-11-15 23:39:25,612 INFO L443 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2019-11-15 23:39:25,612 INFO L443 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-11-15 23:39:25,612 INFO L443 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2019-11-15 23:39:25,612 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2019-11-15 23:39:25,612 INFO L443 ceAbstractionStarter]: For program point L52-3(lines 52 56) no Hoare annotation was computed. [2019-11-15 23:39:25,612 INFO L443 ceAbstractionStarter]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2019-11-15 23:39:25,612 INFO L443 ceAbstractionStarter]: For program point L52-5(lines 52 56) no Hoare annotation was computed. [2019-11-15 23:39:25,613 INFO L443 ceAbstractionStarter]: For program point L19-5(lines 19 23) no Hoare annotation was computed. [2019-11-15 23:39:25,613 INFO L439 ceAbstractionStarter]: At program point L19-6(lines 19 23) the Hoare annotation is: false [2019-11-15 23:39:25,613 INFO L443 ceAbstractionStarter]: For program point L19-7(lines 19 23) no Hoare annotation was computed. [2019-11-15 23:39:25,613 INFO L439 ceAbstractionStarter]: At program point L168(lines 159 169) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and |ULTIMATE.start_main_#t~short17| (= (_ bv1065353216 32) ULTIMATE.start___ieee754_acosf_~ix~1) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) .cse0) (= .cse1 ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= .cse1 ULTIMATE.start_main_~res~0) (= .cse1 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) (= |ULTIMATE.start___ieee754_acosf_#res| .cse1) (= .cse0 ULTIMATE.start___ieee754_acosf_~x))) [2019-11-15 23:39:25,613 INFO L443 ceAbstractionStarter]: For program point L36-2(lines 36 37) no Hoare annotation was computed. [2019-11-15 23:39:25,613 INFO L439 ceAbstractionStarter]: At program point L36-3(lines 36 37) the Hoare annotation is: false [2019-11-15 23:39:25,613 INFO L443 ceAbstractionStarter]: For program point L36-4(lines 36 37) no Hoare annotation was computed. [2019-11-15 23:39:25,614 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 23:39:25,614 INFO L443 ceAbstractionStarter]: For program point L36-7(lines 36 37) no Hoare annotation was computed. [2019-11-15 23:39:25,614 INFO L439 ceAbstractionStarter]: At program point L36-8(lines 36 37) the Hoare annotation is: false [2019-11-15 23:39:25,614 INFO L443 ceAbstractionStarter]: For program point L36-9(lines 36 37) no Hoare annotation was computed. [2019-11-15 23:39:25,614 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 156) no Hoare annotation was computed. [2019-11-15 23:39:25,614 INFO L443 ceAbstractionStarter]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2019-11-15 23:39:25,614 INFO L439 ceAbstractionStarter]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2019-11-15 23:39:25,614 INFO L446 ceAbstractionStarter]: At program point L186(lines 171 187) the Hoare annotation is: true [2019-11-15 23:39:25,615 INFO L443 ceAbstractionStarter]: For program point L104(lines 104 106) no Hoare annotation was computed. [2019-11-15 23:39:25,615 INFO L439 ceAbstractionStarter]: At program point L155(lines 90 157) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (= (_ bv1065353216 32) ULTIMATE.start___ieee754_acosf_~ix~1) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) .cse0) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) (= .cse0 ULTIMATE.start___ieee754_acosf_~x))) [2019-11-15 23:39:25,615 INFO L443 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2019-11-15 23:39:25,615 INFO L439 ceAbstractionStarter]: At program point L73-2(lines 73 77) the Hoare annotation is: false [2019-11-15 23:39:25,616 INFO L443 ceAbstractionStarter]: For program point L73-3(lines 73 77) no Hoare annotation was computed. [2019-11-15 23:39:25,616 INFO L443 ceAbstractionStarter]: For program point L73-5(lines 73 77) no Hoare annotation was computed. [2019-11-15 23:39:25,616 INFO L439 ceAbstractionStarter]: At program point L73-6(lines 73 77) the Hoare annotation is: false [2019-11-15 23:39:25,616 INFO L443 ceAbstractionStarter]: For program point L73-7(lines 73 77) no Hoare annotation was computed. [2019-11-15 23:39:25,616 INFO L443 ceAbstractionStarter]: For program point L107(lines 107 156) no Hoare annotation was computed. [2019-11-15 23:39:25,617 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 23:39:25,617 INFO L443 ceAbstractionStarter]: For program point L141(lines 141 145) no Hoare annotation was computed. [2019-11-15 23:39:25,617 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 109) no Hoare annotation was computed. [2019-11-15 23:39:25,617 INFO L443 ceAbstractionStarter]: For program point L141-1(lines 131 156) no Hoare annotation was computed. [2019-11-15 23:39:25,618 INFO L443 ceAbstractionStarter]: For program point L141-2(lines 141 145) no Hoare annotation was computed. [2019-11-15 23:39:25,618 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2019-11-15 23:39:25,618 INFO L443 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2019-11-15 23:39:25,618 INFO L443 ceAbstractionStarter]: For program point L42-3(lines 42 43) no Hoare annotation was computed. [2019-11-15 23:39:25,618 INFO L443 ceAbstractionStarter]: For program point L42-5(lines 42 43) no Hoare annotation was computed. [2019-11-15 23:39:25,619 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2019-11-15 23:39:25,619 INFO L443 ceAbstractionStarter]: For program point L26-1(lines 26 27) no Hoare annotation was computed. [2019-11-15 23:39:25,619 INFO L443 ceAbstractionStarter]: For program point L93-1(lines 93 97) no Hoare annotation was computed. [2019-11-15 23:39:25,619 INFO L439 ceAbstractionStarter]: At program point L93-2(lines 93 97) the Hoare annotation is: (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) ULTIMATE.start___ieee754_acosf_~x) [2019-11-15 23:39:25,620 INFO L443 ceAbstractionStarter]: For program point L93-3(lines 93 97) no Hoare annotation was computed. [2019-11-15 23:39:25,620 INFO L443 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2019-11-15 23:39:25,620 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 23:39:25,620 INFO L443 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2019-11-15 23:39:25,620 INFO L439 ceAbstractionStarter]: At program point L78(lines 14 79) the Hoare annotation is: false [2019-11-15 23:39:25,621 INFO L439 ceAbstractionStarter]: At program point L78-1(lines 14 79) the Hoare annotation is: false [2019-11-15 23:39:25,621 INFO L443 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2019-11-15 23:39:25,621 INFO L443 ceAbstractionStarter]: For program point L29-1(lines 29 30) no Hoare annotation was computed. [2019-11-15 23:39:25,621 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 182) no Hoare annotation was computed. [2019-11-15 23:39:25,621 INFO L443 ceAbstractionStarter]: For program point L162-1(lines 162 166) no Hoare annotation was computed. [2019-11-15 23:39:25,622 INFO L439 ceAbstractionStarter]: At program point L162-2(lines 162 166) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and |ULTIMATE.start_main_#t~short17| (= (_ bv1065353216 32) ULTIMATE.start___ieee754_acosf_~ix~1) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) .cse0) (= .cse1 ULTIMATE.start___signbit_float_~x) (= .cse1 ULTIMATE.start_main_~res~0) (= |ULTIMATE.start___ieee754_acosf_#res| .cse1) (= .cse0 ULTIMATE.start___ieee754_acosf_~x))) [2019-11-15 23:39:25,622 INFO L443 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2019-11-15 23:39:25,622 INFO L443 ceAbstractionStarter]: For program point L162-3(lines 162 166) no Hoare annotation was computed. [2019-11-15 23:39:25,622 INFO L443 ceAbstractionStarter]: For program point L63-2(lines 63 69) no Hoare annotation was computed. [2019-11-15 23:39:25,623 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2019-11-15 23:39:25,623 INFO L443 ceAbstractionStarter]: For program point L31-1(lines 31 32) no Hoare annotation was computed. [2019-11-15 23:39:25,623 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2019-11-15 23:39:25,623 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 23:39:25,623 INFO L443 ceAbstractionStarter]: For program point L65-3(lines 65 68) no Hoare annotation was computed. [2019-11-15 23:39:25,624 INFO L443 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2019-11-15 23:39:25,624 INFO L443 ceAbstractionStarter]: For program point L181-2(lines 181 184) no Hoare annotation was computed. [2019-11-15 23:39:25,624 INFO L443 ceAbstractionStarter]: For program point L99(lines 99 106) no Hoare annotation was computed. [2019-11-15 23:39:25,624 INFO L443 ceAbstractionStarter]: For program point L182(line 182) no Hoare annotation was computed. [2019-11-15 23:39:25,624 INFO L439 ceAbstractionStarter]: At program point L50-2(lines 50 59) the Hoare annotation is: false [2019-11-15 23:39:25,625 INFO L443 ceAbstractionStarter]: For program point L50-3(lines 14 79) no Hoare annotation was computed. [2019-11-15 23:39:25,625 INFO L439 ceAbstractionStarter]: At program point L50-6(lines 50 59) the Hoare annotation is: false [2019-11-15 23:39:25,625 INFO L443 ceAbstractionStarter]: For program point L50-7(lines 14 79) no Hoare annotation was computed. [2019-11-15 23:39:25,625 INFO L443 ceAbstractionStarter]: For program point L100(lines 100 103) no Hoare annotation was computed. [2019-11-15 23:39:25,625 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2019-11-15 23:39:25,635 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,636 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,637 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,640 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,640 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,641 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,641 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,642 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,643 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,643 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,645 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,646 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,646 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,646 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,647 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,647 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,647 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,649 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,649 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,649 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,650 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,650 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:39:25 BoogieIcfgContainer [2019-11-15 23:39:25,654 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:39:25,655 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:39:25,655 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:39:25,655 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:39:25,656 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:39:09" (3/4) ... [2019-11-15 23:39:25,659 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:39:25,672 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-11-15 23:39:25,673 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-15 23:39:25,702 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1065353216bv32 == ix && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x [2019-11-15 23:39:25,703 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((aux-res == 0.0f && __signbit_float(res) == 0-aux && 1065353216bv32 == ix) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == x) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == res) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x [2019-11-15 23:39:25,704 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && 1065353216bv32 == ix) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == res) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x [2019-11-15 23:39:25,771 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_20f5bc3f-6d57-4ee0-9533-1c035e360325/bin/uautomizer/witness.graphml [2019-11-15 23:39:25,772 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:39:25,774 INFO L168 Benchmark]: Toolchain (without parser) took 28370.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.0 MB in the beginning and 884.8 MB in the end (delta: 66.2 MB). Peak memory consumption was 198.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:39:25,774 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:39:25,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:39:25,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:39:25,776 INFO L168 Benchmark]: Boogie Preprocessor took 61.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:39:25,776 INFO L168 Benchmark]: RCFGBuilder took 11822.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:39:25,777 INFO L168 Benchmark]: TraceAbstraction took 15719.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.3 MB in the end (delta: 177.5 MB). Peak memory consumption was 177.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:39:25,777 INFO L168 Benchmark]: Witness Printer took 117.24 ms. Allocated memory is still 1.2 GB. Free memory was 891.3 MB in the beginning and 884.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:39:25,779 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 568.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 11822.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15719.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.3 MB in the end (delta: 177.5 MB). Peak memory consumption was 177.5 MB. Max. memory is 11.5 GB. * Witness Printer took 117.24 ms. Allocated memory is still 1.2 GB. Free memory was 891.3 MB in the beginning and 884.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 182]: 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: 171]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant [2019-11-15 23:39:25,790 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,790 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,791 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,791 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,792 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,792 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((1065353216bv32 == ix && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x - InvariantResult [Line: 93]: Loop Invariant [2019-11-15 23:39:25,793 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,793 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 159]: Loop Invariant [2019-11-15 23:39:25,794 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,797 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,797 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,797 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && 1065353216bv32 == ix) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == res) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x - InvariantResult [Line: 162]: Loop Invariant [2019-11-15 23:39:25,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:39:25,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((aux-res == 0.0f && __signbit_float(res) == 0-aux && 1065353216bv32 == ix) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == x) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == res) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Result: SAFE, OverallTime: 15.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 282 SDtfs, 208 SDslu, 281 SDs, 0 SdLazy, 43 SolverSat, 10 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred 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, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 21 NumberOfFragments, 128 HoareAnnotationTreeSize, 16 FomulaSimplifications, 70 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 6 QuantifiedInterpolants, 3872 SizeOfPredicates, 21 NumberOfNonLiveVariables, 226 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...