./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f0e84dafea36c954c87753335c0002922188c68 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f0e84dafea36c954c87753335c0002922188c68 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:13:00,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:13:00,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:13:00,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:13:00,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:13:00,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:13:00,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:13:00,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:13:00,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:13:00,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:13:00,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:13:00,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:13:00,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:13:00,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:13:00,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:13:00,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:13:00,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:13:00,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:13:00,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:13:00,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:13:00,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:13:00,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:13:00,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:13:00,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:13:00,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:13:00,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:13:00,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:13:00,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:13:00,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:13:00,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:13:00,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:13:00,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:13:00,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:13:00,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:13:00,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:13:00,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:13:00,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:13:00,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:13:00,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:13:00,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:13:00,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:13:00,780 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 21:13:00,819 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:13:00,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:13:00,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:13:00,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:13:00,822 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:13:00,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:13:00,823 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:13:00,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:13:00,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:13:00,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:13:00,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:13:00,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:13:00,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:13:00,826 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:13:00,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:13:00,826 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:13:00,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:13:00,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:13:00,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:13:00,827 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:13:00,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:13:00,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:13:00,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:13:00,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:13:00,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:13:00,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:13:00,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:13:00,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:13:00,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:13:00,830 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f0e84dafea36c954c87753335c0002922188c68 [2020-11-29 21:13:01,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:13:01,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:13:01,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:13:01,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:13:01,121 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:13:01,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2020-11-29 21:13:01,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/data/7328a1699/e1532b29fdd04e5db2478baf2b00b758/FLAGe3d2855a7 [2020-11-29 21:13:01,761 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:13:01,762 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2020-11-29 21:13:01,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/data/7328a1699/e1532b29fdd04e5db2478baf2b00b758/FLAGe3d2855a7 [2020-11-29 21:13:02,175 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/data/7328a1699/e1532b29fdd04e5db2478baf2b00b758 [2020-11-29 21:13:02,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:13:02,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:13:02,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:13:02,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:13:02,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:13:02,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:13:02" (1/1) ... [2020-11-29 21:13:02,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3601372e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:02, skipping insertion in model container [2020-11-29 21:13:02,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:13:02" (1/1) ... [2020-11-29 21:13:02,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:13:02,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:13:02,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:13:02,458 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:13:02,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:13:02,525 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:13:02,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:02 WrapperNode [2020-11-29 21:13:02,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:13:02,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:13:02,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:13:02,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:13:02,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:02" (1/1) ... [2020-11-29 21:13:02,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:02" (1/1) ... [2020-11-29 21:13:02,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:13:02,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:13:02,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:13:02,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:13:02,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:02" (1/1) ... [2020-11-29 21:13:02,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:02" (1/1) ... [2020-11-29 21:13:02,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:02" (1/1) ... [2020-11-29 21:13:02,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:02" (1/1) ... [2020-11-29 21:13:02,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:02" (1/1) ... [2020-11-29 21:13:02,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:02" (1/1) ... [2020-11-29 21:13:02,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:02" (1/1) ... [2020-11-29 21:13:02,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:13:02,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:13:02,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:13:02,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:13:02,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:13:02,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:13:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:13:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 21:13:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:13:02,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:13:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 21:13:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 21:13:03,232 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:13:03,232 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-29 21:13:03,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:13:03 BoogieIcfgContainer [2020-11-29 21:13:03,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:13:03,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:13:03,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:13:03,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:13:03,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:13:02" (1/3) ... [2020-11-29 21:13:03,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68043dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:13:03, skipping insertion in model container [2020-11-29 21:13:03,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:02" (2/3) ... [2020-11-29 21:13:03,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68043dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:13:03, skipping insertion in model container [2020-11-29 21:13:03,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:13:03" (3/3) ... [2020-11-29 21:13:03,241 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2020-11-29 21:13:03,252 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:13:03,259 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:13:03,273 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:13:03,312 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:13:03,313 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:13:03,313 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:13:03,314 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:13:03,314 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:13:03,314 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:13:03,314 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:13:03,314 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:13:03,331 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-29 21:13:03,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 21:13:03,344 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:03,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:03,346 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:03,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:03,351 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2020-11-29 21:13:03,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:13:03,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510477112] [2020-11-29 21:13:03,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:13:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:03,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:03,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510477112] [2020-11-29 21:13:03,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:03,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:13:03,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126569217] [2020-11-29 21:13:03,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 21:13:03,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:13:03,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 21:13:03,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:13:03,497 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-11-29 21:13:03,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:03,519 INFO L93 Difference]: Finished difference Result 63 states and 99 transitions. [2020-11-29 21:13:03,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:13:03,520 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 21:13:03,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:03,529 INFO L225 Difference]: With dead ends: 63 [2020-11-29 21:13:03,530 INFO L226 Difference]: Without dead ends: 29 [2020-11-29 21:13:03,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:13:03,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-29 21:13:03,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-29 21:13:03,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 21:13:03,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-11-29 21:13:03,572 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2020-11-29 21:13:03,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:03,573 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-11-29 21:13:03,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 21:13:03,573 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-11-29 21:13:03,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 21:13:03,574 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:03,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:03,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:13:03,575 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:03,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:03,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2020-11-29 21:13:03,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:13:03,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903200827] [2020-11-29 21:13:03,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:13:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:03,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:03,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903200827] [2020-11-29 21:13:03,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:03,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:13:03,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282289196] [2020-11-29 21:13:03,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:13:03,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:13:03,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:13:03,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:13:03,720 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 4 states. [2020-11-29 21:13:03,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:03,817 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2020-11-29 21:13:03,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:13:03,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-29 21:13:03,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:03,819 INFO L225 Difference]: With dead ends: 53 [2020-11-29 21:13:03,819 INFO L226 Difference]: Without dead ends: 44 [2020-11-29 21:13:03,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:13:03,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-11-29 21:13:03,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2020-11-29 21:13:03,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 21:13:03,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-29 21:13:03,832 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2020-11-29 21:13:03,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:03,833 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-29 21:13:03,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:13:03,834 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-29 21:13:03,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 21:13:03,835 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:03,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:03,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 21:13:03,836 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:03,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:03,837 INFO L82 PathProgramCache]: Analyzing trace with hash 502201410, now seen corresponding path program 1 times [2020-11-29 21:13:03,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:13:03,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072137960] [2020-11-29 21:13:03,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:13:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:03,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072137960] [2020-11-29 21:13:03,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:03,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:13:03,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362607369] [2020-11-29 21:13:03,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:13:03,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:13:03,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:13:03,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:13:03,916 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2020-11-29 21:13:03,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:03,976 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2020-11-29 21:13:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:13:03,977 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-29 21:13:03,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:03,978 INFO L225 Difference]: With dead ends: 55 [2020-11-29 21:13:03,978 INFO L226 Difference]: Without dead ends: 46 [2020-11-29 21:13:03,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:13:03,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-29 21:13:03,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2020-11-29 21:13:03,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 21:13:03,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-29 21:13:03,983 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 12 [2020-11-29 21:13:03,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:03,983 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-29 21:13:03,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:13:03,984 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-29 21:13:03,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 21:13:03,984 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:03,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:03,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 21:13:03,985 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:03,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:03,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1951233721, now seen corresponding path program 1 times [2020-11-29 21:13:03,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:13:03,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100684592] [2020-11-29 21:13:03,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:13:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:04,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:04,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100684592] [2020-11-29 21:13:04,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:04,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:13:04,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787236368] [2020-11-29 21:13:04,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:13:04,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:13:04,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:13:04,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:13:04,050 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2020-11-29 21:13:04,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:04,140 INFO L93 Difference]: Finished difference Result 57 states and 71 transitions. [2020-11-29 21:13:04,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:13:04,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-29 21:13:04,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:04,149 INFO L225 Difference]: With dead ends: 57 [2020-11-29 21:13:04,149 INFO L226 Difference]: Without dead ends: 48 [2020-11-29 21:13:04,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:13:04,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-11-29 21:13:04,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 31. [2020-11-29 21:13:04,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 21:13:04,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-29 21:13:04,155 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 13 [2020-11-29 21:13:04,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:04,155 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-29 21:13:04,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:13:04,155 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-29 21:13:04,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 21:13:04,156 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:04,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:04,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 21:13:04,156 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:04,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:04,157 INFO L82 PathProgramCache]: Analyzing trace with hash -555760345, now seen corresponding path program 1 times [2020-11-29 21:13:04,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:13:04,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315376049] [2020-11-29 21:13:04,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:13:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:04,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:04,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315376049] [2020-11-29 21:13:04,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:04,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:13:04,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992454786] [2020-11-29 21:13:04,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:13:04,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:13:04,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:13:04,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:13:04,227 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2020-11-29 21:13:04,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:04,290 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2020-11-29 21:13:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:13:04,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-29 21:13:04,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:04,296 INFO L225 Difference]: With dead ends: 55 [2020-11-29 21:13:04,296 INFO L226 Difference]: Without dead ends: 46 [2020-11-29 21:13:04,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:13:04,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-29 21:13:04,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2020-11-29 21:13:04,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 21:13:04,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-29 21:13:04,302 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 14 [2020-11-29 21:13:04,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:04,302 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-29 21:13:04,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:13:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-29 21:13:04,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 21:13:04,303 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:04,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:04,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 21:13:04,304 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:04,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:04,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times [2020-11-29 21:13:04,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:13:04,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854878877] [2020-11-29 21:13:04,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:13:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:13:04,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:13:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:13:04,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:13:04,411 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:13:04,411 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 21:13:04,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 21:13:04,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:13:04 BoogieIcfgContainer [2020-11-29 21:13:04,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:13:04,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:13:04,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:13:04,455 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:13:04,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:13:03" (3/4) ... [2020-11-29 21:13:04,459 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 21:13:04,459 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:13:04,461 INFO L168 Benchmark]: Toolchain (without parser) took 2278.60 ms. Allocated memory was 73.4 MB in the beginning and 109.1 MB in the end (delta: 35.7 MB). Free memory was 40.7 MB in the beginning and 70.5 MB in the end (delta: -29.8 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:04,461 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 53.9 MB in the end (delta: 24.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:13:04,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.73 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 40.6 MB in the beginning and 64.9 MB in the end (delta: -24.3 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:04,463 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.98 ms. Allocated memory is still 88.1 MB. Free memory was 64.9 MB in the beginning and 63.1 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:13:04,464 INFO L168 Benchmark]: Boogie Preprocessor took 29.41 ms. Allocated memory is still 88.1 MB. Free memory was 63.1 MB in the beginning and 61.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:04,464 INFO L168 Benchmark]: RCFGBuilder took 612.28 ms. Allocated memory is still 88.1 MB. Free memory was 61.4 MB in the beginning and 64.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:04,465 INFO L168 Benchmark]: TraceAbstraction took 1218.83 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 63.6 MB in the beginning and 71.2 MB in the end (delta: -7.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:04,466 INFO L168 Benchmark]: Witness Printer took 4.12 ms. Allocated memory is still 109.1 MB. Free memory was 71.2 MB in the beginning and 70.5 MB in the end (delta: 687.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:13:04,470 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 53.9 MB in the end (delta: 24.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.73 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 40.6 MB in the beginning and 64.9 MB in the end (delta: -24.3 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.98 ms. Allocated memory is still 88.1 MB. Free memory was 64.9 MB in the beginning and 63.1 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.41 ms. Allocated memory is still 88.1 MB. Free memory was 63.1 MB in the beginning and 61.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 612.28 ms. Allocated memory is still 88.1 MB. Free memory was 61.4 MB in the beginning and 64.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1218.83 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 63.6 MB in the beginning and 71.2 MB in the end (delta: -7.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.12 ms. Allocated memory is still 109.1 MB. Free memory was 71.2 MB in the beginning and 70.5 MB in the end (delta: 687.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someUnaryDOUBLEoperation at line 77. Possible FailurePath: [L76] double x = 0.0; [L77] double y = -0.0; [L21] __uint32_t msw, lsw; [L24] ieee_double_shape_type ew_u; [L25] ew_u.value = (x) [L26] EXPR ew_u.parts.msw [L26] (msw) = ew_u.parts.msw [L27] EXPR ew_u.parts.lsw [L27] (lsw) = ew_u.parts.lsw [L30-L31] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L33-L34] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L36-L37] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L40-L41] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L44] return 0; [L48] COND TRUE __fpclassify_double(x) == 0 [L49] return y; [L78] double res = fmin_double(x, y); [L81] EXPR res == -0.0 && __signbit_double(res) == 1 [L81] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L3] __assert_fail("0", "double_req_bl_1232a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 251 SDtfs, 64 SDslu, 298 SDs, 0 SdLazy, 84 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 60 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 799 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:13:06,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:13:06,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:13:06,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:13:06,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:13:06,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:13:06,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:13:06,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:13:06,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:13:06,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:13:06,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:13:06,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:13:06,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:13:06,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:13:06,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:13:06,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:13:06,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:13:06,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:13:06,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:13:06,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:13:06,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:13:06,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:13:06,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:13:06,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:13:06,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:13:06,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:13:06,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:13:06,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:13:06,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:13:06,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:13:06,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:13:06,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:13:06,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:13:06,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:13:06,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:13:06,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:13:06,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:13:06,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:13:06,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:13:06,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:13:06,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:13:06,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 21:13:06,964 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:13:06,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:13:06,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:13:06,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:13:06,966 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:13:06,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:13:06,967 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:13:06,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:13:06,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:13:06,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:13:06,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:13:06,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:13:06,968 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 21:13:06,968 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 21:13:06,968 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:13:06,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:13:06,969 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:13:06,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:13:06,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:13:06,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:13:06,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:13:06,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:13:06,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:13:06,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:13:06,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:13:06,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:13:06,971 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 21:13:06,971 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 21:13:06,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:13:06,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:13:06,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 21:13:06,972 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f0e84dafea36c954c87753335c0002922188c68 [2020-11-29 21:13:07,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:13:07,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:13:07,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:13:07,347 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:13:07,348 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:13:07,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2020-11-29 21:13:07,422 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/data/19b9042df/ebbdba0094fc43bdb2f8c00cc6cb99d0/FLAGd43d334e6 [2020-11-29 21:13:07,949 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:13:07,953 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2020-11-29 21:13:07,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/data/19b9042df/ebbdba0094fc43bdb2f8c00cc6cb99d0/FLAGd43d334e6 [2020-11-29 21:13:08,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/data/19b9042df/ebbdba0094fc43bdb2f8c00cc6cb99d0 [2020-11-29 21:13:08,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:13:08,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:13:08,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:13:08,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:13:08,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:13:08,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:13:08" (1/1) ... [2020-11-29 21:13:08,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c394bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:08, skipping insertion in model container [2020-11-29 21:13:08,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:13:08" (1/1) ... [2020-11-29 21:13:08,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:13:08,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:13:08,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:13:08,570 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:13:08,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:13:08,625 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:13:08,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:08 WrapperNode [2020-11-29 21:13:08,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:13:08,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:13:08,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:13:08,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:13:08,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:08" (1/1) ... [2020-11-29 21:13:08,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:08" (1/1) ... [2020-11-29 21:13:08,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:13:08,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:13:08,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:13:08,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:13:08,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:08" (1/1) ... [2020-11-29 21:13:08,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:08" (1/1) ... [2020-11-29 21:13:08,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:08" (1/1) ... [2020-11-29 21:13:08,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:08" (1/1) ... [2020-11-29 21:13:08,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:08" (1/1) ... [2020-11-29 21:13:08,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:08" (1/1) ... [2020-11-29 21:13:08,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:08" (1/1) ... [2020-11-29 21:13:08,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:13:08,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:13:08,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:13:08,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:13:08,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:13:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-29 21:13:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 21:13:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:13:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 21:13:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:13:08,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:13:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 21:13:09,474 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:13:09,474 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-29 21:13:09,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:13:09 BoogieIcfgContainer [2020-11-29 21:13:09,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:13:09,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:13:09,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:13:09,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:13:09,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:13:08" (1/3) ... [2020-11-29 21:13:09,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd461b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:13:09, skipping insertion in model container [2020-11-29 21:13:09,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:08" (2/3) ... [2020-11-29 21:13:09,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd461b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:13:09, skipping insertion in model container [2020-11-29 21:13:09,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:13:09" (3/3) ... [2020-11-29 21:13:09,483 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2020-11-29 21:13:09,493 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:13:09,497 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:13:09,509 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:13:09,530 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:13:09,531 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:13:09,531 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:13:09,531 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:13:09,531 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:13:09,531 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:13:09,532 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:13:09,532 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:13:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-29 21:13:09,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 21:13:09,549 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:09,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:09,550 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:09,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:09,554 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2020-11-29 21:13:09,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:13:09,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264116579] [2020-11-29 21:13:09,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 21:13:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:09,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 21:13:09,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:13:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:09,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:13:09,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:09,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264116579] [2020-11-29 21:13:09,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:09,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 21:13:09,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184134998] [2020-11-29 21:13:09,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 21:13:09,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:13:09,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 21:13:09,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:13:09,743 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-11-29 21:13:09,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:09,778 INFO L93 Difference]: Finished difference Result 63 states and 99 transitions. [2020-11-29 21:13:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:13:09,779 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 21:13:09,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:09,789 INFO L225 Difference]: With dead ends: 63 [2020-11-29 21:13:09,789 INFO L226 Difference]: Without dead ends: 29 [2020-11-29 21:13:09,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:13:09,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-29 21:13:09,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-29 21:13:09,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 21:13:09,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-11-29 21:13:09,825 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2020-11-29 21:13:09,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:09,826 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-11-29 21:13:09,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 21:13:09,826 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-11-29 21:13:09,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 21:13:09,827 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:09,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:10,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 21:13:10,041 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:10,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:10,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2020-11-29 21:13:10,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:13:10,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229359600] [2020-11-29 21:13:10,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 21:13:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:10,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 21:13:10,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:13:10,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:10,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:13:10,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:10,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229359600] [2020-11-29 21:13:10,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:10,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-29 21:13:10,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873238592] [2020-11-29 21:13:10,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 21:13:10,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:13:10,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:13:10,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:13:10,201 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 6 states. [2020-11-29 21:13:10,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:10,325 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2020-11-29 21:13:10,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 21:13:10,328 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-29 21:13:10,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:10,329 INFO L225 Difference]: With dead ends: 68 [2020-11-29 21:13:10,329 INFO L226 Difference]: Without dead ends: 59 [2020-11-29 21:13:10,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 21:13:10,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-29 21:13:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 31. [2020-11-29 21:13:10,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 21:13:10,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-29 21:13:10,337 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2020-11-29 21:13:10,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:10,337 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-29 21:13:10,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 21:13:10,337 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-29 21:13:10,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 21:13:10,338 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:10,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:10,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 21:13:10,555 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:10,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:10,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times [2020-11-29 21:13:10,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:13:10,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242631188] [2020-11-29 21:13:10,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 21:13:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:10,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 21:13:10,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:13:10,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:10,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:13:10,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:10,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242631188] [2020-11-29 21:13:10,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:10,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-29 21:13:10,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269653632] [2020-11-29 21:13:10,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 21:13:10,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:13:10,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:13:10,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:13:10,814 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 6 states. [2020-11-29 21:13:10,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:10,970 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-11-29 21:13:10,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:13:10,972 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-29 21:13:10,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:10,973 INFO L225 Difference]: With dead ends: 52 [2020-11-29 21:13:10,973 INFO L226 Difference]: Without dead ends: 28 [2020-11-29 21:13:10,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:13:10,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-29 21:13:10,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-29 21:13:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-29 21:13:10,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2020-11-29 21:13:10,981 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 14 [2020-11-29 21:13:10,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:10,981 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2020-11-29 21:13:10,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 21:13:10,982 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2020-11-29 21:13:10,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 21:13:10,982 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:10,983 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:11,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 21:13:11,183 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:11,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:11,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1012446717, now seen corresponding path program 1 times [2020-11-29 21:13:11,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:13:11,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158332254] [2020-11-29 21:13:11,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 21:13:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:11,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 21:13:11,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:13:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:11,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:13:11,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:11,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158332254] [2020-11-29 21:13:11,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:11,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-29 21:13:11,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110879157] [2020-11-29 21:13:11,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 21:13:11,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:13:11,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:13:11,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:13:11,356 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 6 states. [2020-11-29 21:13:11,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:11,540 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2020-11-29 21:13:11,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 21:13:11,541 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-29 21:13:11,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:11,542 INFO L225 Difference]: With dead ends: 65 [2020-11-29 21:13:11,542 INFO L226 Difference]: Without dead ends: 56 [2020-11-29 21:13:11,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 21:13:11,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-29 21:13:11,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 30. [2020-11-29 21:13:11,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 21:13:11,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-11-29 21:13:11,549 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 16 [2020-11-29 21:13:11,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:11,550 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-11-29 21:13:11,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 21:13:11,550 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-11-29 21:13:11,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 21:13:11,551 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:11,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:11,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 21:13:11,762 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:11,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:11,763 INFO L82 PathProgramCache]: Analyzing trace with hash -414082333, now seen corresponding path program 1 times [2020-11-29 21:13:11,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:13:11,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076642196] [2020-11-29 21:13:11,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/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 [2020-11-29 21:13:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:11,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 21:13:11,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:13:11,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:11,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:13:11,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:11,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076642196] [2020-11-29 21:13:11,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:11,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-29 21:13:11,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976181839] [2020-11-29 21:13:11,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:13:11,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:13:11,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:13:11,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:13:11,946 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 4 states. [2020-11-29 21:13:11,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:11,962 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2020-11-29 21:13:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:13:11,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-29 21:13:11,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:11,963 INFO L225 Difference]: With dead ends: 40 [2020-11-29 21:13:11,963 INFO L226 Difference]: Without dead ends: 30 [2020-11-29 21:13:11,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:13:11,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-29 21:13:11,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-29 21:13:11,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 21:13:11,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2020-11-29 21:13:11,969 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 18 [2020-11-29 21:13:11,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:11,969 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2020-11-29 21:13:11,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:13:11,970 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2020-11-29 21:13:11,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 21:13:11,970 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:11,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:12,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 21:13:12,171 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:12,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:12,172 INFO L82 PathProgramCache]: Analyzing trace with hash -356824031, now seen corresponding path program 1 times [2020-11-29 21:13:12,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:13:12,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270366569] [2020-11-29 21:13:12,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-29 21:13:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:12,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 21:13:12,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:13:12,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:12,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:13:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:12,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270366569] [2020-11-29 21:13:12,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:12,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-29 21:13:12,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582103735] [2020-11-29 21:13:12,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 21:13:12,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:13:12,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 21:13:12,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-29 21:13:12,424 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand 9 states. [2020-11-29 21:13:12,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:12,577 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2020-11-29 21:13:12,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 21:13:12,578 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-11-29 21:13:12,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:12,579 INFO L225 Difference]: With dead ends: 42 [2020-11-29 21:13:12,579 INFO L226 Difference]: Without dead ends: 39 [2020-11-29 21:13:12,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-11-29 21:13:12,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-29 21:13:12,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2020-11-29 21:13:12,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-29 21:13:12,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2020-11-29 21:13:12,585 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 18 [2020-11-29 21:13:12,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:12,585 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-11-29 21:13:12,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 21:13:12,585 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-11-29 21:13:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 21:13:12,591 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:12,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:12,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-29 21:13:12,792 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:12,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:12,792 INFO L82 PathProgramCache]: Analyzing trace with hash -208358251, now seen corresponding path program 1 times [2020-11-29 21:13:12,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:13:12,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054444733] [2020-11-29 21:13:12,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-29 21:13:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:12,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 21:13:12,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:13:12,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:12,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:13:12,989 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 21:13:13,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:13,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054444733] [2020-11-29 21:13:13,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:13,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 21:13:13,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561609343] [2020-11-29 21:13:13,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 21:13:13,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:13:13,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 21:13:13,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 21:13:13,123 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 8 states. [2020-11-29 21:13:13,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:13,273 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2020-11-29 21:13:13,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 21:13:13,274 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-11-29 21:13:13,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:13,274 INFO L225 Difference]: With dead ends: 45 [2020-11-29 21:13:13,274 INFO L226 Difference]: Without dead ends: 27 [2020-11-29 21:13:13,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 21:13:13,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-29 21:13:13,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-29 21:13:13,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 21:13:13,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-11-29 21:13:13,279 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2020-11-29 21:13:13,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:13,280 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-11-29 21:13:13,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 21:13:13,280 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-11-29 21:13:13,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 21:13:13,280 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:13,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:13,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-29 21:13:13,481 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:13,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:13,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1524231306, now seen corresponding path program 1 times [2020-11-29 21:13:13,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:13:13,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024845816] [2020-11-29 21:13:13,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-29 21:13:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:13,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 21:13:13,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:13:13,719 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:13:13,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:13,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:13:14,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:14,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024845816] [2020-11-29 21:13:14,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:14,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-11-29 21:13:14,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903386397] [2020-11-29 21:13:14,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-29 21:13:14,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:13:14,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-29 21:13:14,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-11-29 21:13:14,095 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 16 states. [2020-11-29 21:13:14,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:14,452 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-11-29 21:13:14,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 21:13:14,453 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 22 [2020-11-29 21:13:14,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:14,453 INFO L225 Difference]: With dead ends: 27 [2020-11-29 21:13:14,454 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 21:13:14,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2020-11-29 21:13:14,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 21:13:14,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 21:13:14,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 21:13:14,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 21:13:14,455 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-11-29 21:13:14,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:14,455 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:13:14,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-29 21:13:14,455 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 21:13:14,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 21:13:14,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-29 21:13:14,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 21:13:15,061 INFO L270 CegarLoopResult]: At program point L44(lines 20 45) the Hoare annotation is: (and (= ULTIMATE.start_fmin_double_~y (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x) (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start___fpclassify_double_~msw~0))) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|))) [2020-11-29 21:13:15,062 INFO L270 CegarLoopResult]: At program point L44-1(lines 20 45) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ULTIMATE.start_fmin_double_~y .cse0) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|)))) [2020-11-29 21:13:15,062 INFO L274 CegarLoopResult]: For program point L36(lines 36 44) no Hoare annotation was computed. [2020-11-29 21:13:15,062 INFO L274 CegarLoopResult]: For program point L36-1(lines 36 44) no Hoare annotation was computed. [2020-11-29 21:13:15,062 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 21:13:15,062 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 21:13:15,062 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 21:13:15,062 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 21:13:15,062 INFO L277 CegarLoopResult]: At program point L86(lines 68 87) the Hoare annotation is: true [2020-11-29 21:13:15,062 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-29 21:13:15,062 INFO L274 CegarLoopResult]: For program point L53-2(line 53) no Hoare annotation was computed. [2020-11-29 21:13:15,063 INFO L270 CegarLoopResult]: At program point L53-3(lines 47 54) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= |ULTIMATE.start_fmin_double_#res| .cse0) (= ULTIMATE.start_fmin_double_~y .cse0) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0))) [2020-11-29 21:13:15,063 INFO L274 CegarLoopResult]: For program point L23-1(lines 23 28) no Hoare annotation was computed. [2020-11-29 21:13:15,063 INFO L270 CegarLoopResult]: At program point L23-2(lines 23 28) the Hoare annotation is: (and (= ULTIMATE.start_fmin_double_~y (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x)) [2020-11-29 21:13:15,063 INFO L274 CegarLoopResult]: For program point L23-3(lines 20 45) no Hoare annotation was computed. [2020-11-29 21:13:15,063 INFO L274 CegarLoopResult]: For program point L23-5(lines 23 28) no Hoare annotation was computed. [2020-11-29 21:13:15,063 INFO L270 CegarLoopResult]: At program point L23-6(lines 23 28) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ULTIMATE.start_fmin_double_~y .cse0) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0))) [2020-11-29 21:13:15,063 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-11-29 21:13:15,063 INFO L274 CegarLoopResult]: For program point L48(lines 48 49) no Hoare annotation was computed. [2020-11-29 21:13:15,063 INFO L274 CegarLoopResult]: For program point L23-7(lines 20 45) no Hoare annotation was computed. [2020-11-29 21:13:15,063 INFO L274 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-11-29 21:13:15,063 INFO L274 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-11-29 21:13:15,064 INFO L274 CegarLoopResult]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2020-11-29 21:13:15,064 INFO L270 CegarLoopResult]: At program point L65(lines 56 66) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (exists ((v_skolemized_v_prenex_5_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_5_3) ((_ extract 62 52) v_skolemized_v_prenex_5_3) ((_ extract 51 0) v_skolemized_v_prenex_5_3)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___signbit_double_~msw~1 ((_ extract 63 32) v_skolemized_v_prenex_5_3)))) |ULTIMATE.start_main_#t~short18| (= .cse0 ULTIMATE.start_main_~res~0) (= |ULTIMATE.start_fmin_double_#res| .cse0) (= ULTIMATE.start_fmin_double_~y .cse0) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0) (= ULTIMATE.start___signbit_double_~x .cse0) (= (bvadd |ULTIMATE.start___signbit_double_#res| (_ bv4294967295 32)) (_ bv0 32)))) [2020-11-29 21:13:15,064 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 21:13:15,064 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 21:13:15,064 INFO L274 CegarLoopResult]: For program point L33(lines 33 44) no Hoare annotation was computed. [2020-11-29 21:13:15,064 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 21:13:15,064 INFO L274 CegarLoopResult]: For program point L33-1(lines 33 44) no Hoare annotation was computed. [2020-11-29 21:13:15,064 INFO L274 CegarLoopResult]: For program point L50(lines 50 51) no Hoare annotation was computed. [2020-11-29 21:13:15,064 INFO L274 CegarLoopResult]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2020-11-29 21:13:15,065 INFO L270 CegarLoopResult]: At program point L59-2(lines 59 63) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and |ULTIMATE.start_main_#t~short18| (= .cse0 ULTIMATE.start_main_~res~0) (= |ULTIMATE.start_fmin_double_#res| .cse0) (= ULTIMATE.start_fmin_double_~y .cse0) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0) (= ULTIMATE.start___signbit_double_~x .cse0))) [2020-11-29 21:13:15,065 INFO L274 CegarLoopResult]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2020-11-29 21:13:15,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,082 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,082 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,083 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,086 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,086 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,086 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,087 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,089 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,089 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,089 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,089 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,090 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,090 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,090 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,090 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,091 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,091 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,092 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,092 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,093 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,093 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,093 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,093 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,106 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,106 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,106 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,106 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,108 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,108 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,108 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,108 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,109 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,109 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,110 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,110 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,111 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,111 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,111 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,111 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:13:15 BoogieIcfgContainer [2020-11-29 21:13:15,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:13:15,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:13:15,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:13:15,114 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:13:15,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:13:09" (3/4) ... [2020-11-29 21:13:15,117 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 21:13:15,131 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-11-29 21:13:15,132 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 21:13:15,132 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 21:13:15,132 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 21:13:15,156 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && (\exists v_skolemized_v_prenex_1_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) && v_skolemized_v_prenex_1_3[63:32] == msw)) && !(0bv32 == \result) [2020-11-29 21:13:15,156 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2020-11-29 21:13:15,157 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((aux-res == -0.0 && __signbit_double(res) == 1-aux && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2020-11-29 21:13:15,157 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\exists v_skolemized_v_prenex_5_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_5_3[63:63], v_skolemized_v_prenex_5_3[62:52], v_skolemized_v_prenex_5_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_5_3[63:32]) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32 [2020-11-29 21:13:15,157 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && !(0bv32 == \result) [2020-11-29 21:13:15,183 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_30fa2c76-3bdd-4dbe-a392-a699303f6b7d/bin/uautomizer/witness.graphml [2020-11-29 21:13:15,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:13:15,185 INFO L168 Benchmark]: Toolchain (without parser) took 6880.64 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 43.6 MB in the beginning and 37.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:15,185 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 62.9 MB. Free memory is still 44.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:13:15,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.72 ms. Allocated memory is still 62.9 MB. Free memory was 43.4 MB in the beginning and 32.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:15,186 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.69 ms. Allocated memory is still 62.9 MB. Free memory was 32.3 MB in the beginning and 45.5 MB in the end (delta: -13.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:15,186 INFO L168 Benchmark]: Boogie Preprocessor took 51.38 ms. Allocated memory is still 62.9 MB. Free memory was 45.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:13:15,187 INFO L168 Benchmark]: RCFGBuilder took 694.21 ms. Allocated memory is still 62.9 MB. Free memory was 43.8 MB in the beginning and 39.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:15,187 INFO L168 Benchmark]: TraceAbstraction took 5636.32 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 39.0 MB in the beginning and 42.2 MB in the end (delta: -3.1 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:15,188 INFO L168 Benchmark]: Witness Printer took 69.29 ms. Allocated memory is still 75.5 MB. Free memory was 42.2 MB in the beginning and 37.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:15,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 62.9 MB. Free memory is still 44.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 321.72 ms. Allocated memory is still 62.9 MB. Free memory was 43.4 MB in the beginning and 32.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.69 ms. Allocated memory is still 62.9 MB. Free memory was 32.3 MB in the beginning and 45.5 MB in the end (delta: -13.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.38 ms. Allocated memory is still 62.9 MB. Free memory was 45.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 694.21 ms. Allocated memory is still 62.9 MB. Free memory was 43.8 MB in the beginning and 39.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5636.32 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 39.0 MB in the beginning and 42.2 MB in the end (delta: -3.1 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. * Witness Printer took 69.29 ms. Allocated memory is still 75.5 MB. Free memory was 42.2 MB in the beginning and 37.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 20]: Loop Invariant [2020-11-29 21:13:15,197 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,197 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,197 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,197 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,197 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,197 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (((y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && !(0bv32 == \result) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant [2020-11-29 21:13:15,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,199 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,199 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,199 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,199 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,199 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,199 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,200 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,200 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,200 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,200 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:13:15,200 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,201 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,201 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,201 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (((((((((\exists v_skolemized_v_prenex_5_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_5_3[63:63], v_skolemized_v_prenex_5_3[62:52], v_skolemized_v_prenex_5_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_5_3[63:32]) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 20]: Loop Invariant [2020-11-29 21:13:15,202 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,202 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,202 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,202 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,202 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,203 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,203 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:13:15,203 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] Derived loop invariant: (((y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && (\exists v_skolemized_v_prenex_1_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) && v_skolemized_v_prenex_1_3[63:32] == msw)) && !(0bv32 == \result) - InvariantResult [Line: 47]: Loop Invariant [2020-11-29 21:13:15,203 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,203 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,203 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,204 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,204 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,204 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,204 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,204 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 59]: Loop Invariant [2020-11-29 21:13:15,205 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,205 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,205 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,205 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,205 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,206 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,206 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:13:15,206 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: ((((((aux-res == -0.0 && __signbit_double(res) == 1-aux && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 252 SDtfs, 287 SDslu, 527 SDs, 0 SdLazy, 183 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 196 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 8 MinimizatonAttempts, 61 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 16 NumberOfFragments, 221 HoareAnnotationTreeSize, 8 FomulaSimplifications, 51 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 33 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 240 ConstructedInterpolants, 32 QuantifiedInterpolants, 21250 SizeOfPredicates, 38 NumberOfNonLiveVariables, 555 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...