./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/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 0a3f551236e6278c9c002017bfa081dd6b42c960 ............................................................................................................................................................................................................................................................................................................................ 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_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/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 0a3f551236e6278c9c002017bfa081dd6b42c960 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:40:59,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:40:59,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:40:59,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:40:59,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:40:59,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:40:59,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:40:59,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:40:59,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:40:59,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:40:59,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:40:59,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:40:59,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:40:59,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:40:59,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:40:59,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:40:59,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:40:59,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:40:59,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:40:59,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:40:59,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:40:59,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:40:59,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:40:59,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:40:59,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:40:59,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:40:59,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:40:59,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:40:59,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:40:59,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:40:59,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:40:59,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:40:59,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:40:59,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:40:59,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:40:59,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:40:59,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:40:59,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:40:59,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:40:59,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:40:59,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:40:59,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:40:59,587 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:40:59,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:40:59,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:40:59,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:40:59,595 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:40:59,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:40:59,596 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:40:59,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:40:59,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:40:59,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:40:59,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:40:59,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:40:59,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:40:59,600 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:40:59,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:40:59,600 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:40:59,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:40:59,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:40:59,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:40:59,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:40:59,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:40:59,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:40:59,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:40:59,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:40:59,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:40:59,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:40:59,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:40:59,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:40:59,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:40:59,606 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_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a3f551236e6278c9c002017bfa081dd6b42c960 [2020-12-01 15:40:59,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:40:59,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:40:59,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:40:59,992 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:40:59,993 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:40:59,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2020-12-01 15:41:00,086 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/data/c266d1234/c108d2f8bbf54328b86550ec00aa3c12/FLAGdfe26bc49 [2020-12-01 15:41:00,706 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:41:00,707 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2020-12-01 15:41:00,723 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/data/c266d1234/c108d2f8bbf54328b86550ec00aa3c12/FLAGdfe26bc49 [2020-12-01 15:41:00,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/data/c266d1234/c108d2f8bbf54328b86550ec00aa3c12 [2020-12-01 15:41:01,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:41:01,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:41:01,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:41:01,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:41:01,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:41:01,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:41:00" (1/1) ... [2020-12-01 15:41:01,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31dcdf1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:01, skipping insertion in model container [2020-12-01 15:41:01,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:41:00" (1/1) ... [2020-12-01 15:41:01,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:41:01,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:41:01,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:41:01,318 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:41:01,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:41:01,392 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:41:01,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:01 WrapperNode [2020-12-01 15:41:01,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:41:01,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:41:01,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:41:01,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:41:01,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:01" (1/1) ... [2020-12-01 15:41:01,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:01" (1/1) ... [2020-12-01 15:41:01,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:41:01,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:41:01,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:41:01,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:41:01,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:01" (1/1) ... [2020-12-01 15:41:01,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:01" (1/1) ... [2020-12-01 15:41:01,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:01" (1/1) ... [2020-12-01 15:41:01,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:01" (1/1) ... [2020-12-01 15:41:01,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:01" (1/1) ... [2020-12-01 15:41:01,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:01" (1/1) ... [2020-12-01 15:41:01,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:01" (1/1) ... [2020-12-01 15:41:01,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:41:01,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:41:01,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:41:01,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:41:01,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/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 [2020-12-01 15:41:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:41:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:41:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 15:41:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:41:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 15:41:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:41:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:41:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:41:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-01 15:41:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:41:02,220 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:41:02,221 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-01 15:41:02,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:41:02 BoogieIcfgContainer [2020-12-01 15:41:02,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:41:02,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:41:02,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:41:02,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:41:02,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:41:00" (1/3) ... [2020-12-01 15:41:02,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa1b536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:41:02, skipping insertion in model container [2020-12-01 15:41:02,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:01" (2/3) ... [2020-12-01 15:41:02,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa1b536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:41:02, skipping insertion in model container [2020-12-01 15:41:02,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:41:02" (3/3) ... [2020-12-01 15:41:02,243 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2020-12-01 15:41:02,263 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:41:02,267 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:41:02,281 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:41:02,329 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:41:02,329 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:41:02,329 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:41:02,329 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:41:02,329 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:41:02,330 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:41:02,330 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:41:02,330 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:41:02,348 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-12-01 15:41:02,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:41:02,359 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:02,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:02,360 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:02,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:02,368 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2020-12-01 15:41:02,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:02,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792089850] [2020-12-01 15:41:02,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:02,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792089850] [2020-12-01 15:41:02,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:02,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:41:02,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393854910] [2020-12-01 15:41:02,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:41:02,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:41:02,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:41:02,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:41:02,687 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-12-01 15:41:02,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:02,709 INFO L93 Difference]: Finished difference Result 77 states and 121 transitions. [2020-12-01 15:41:02,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:41:02,711 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-01 15:41:02,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:02,733 INFO L225 Difference]: With dead ends: 77 [2020-12-01 15:41:02,734 INFO L226 Difference]: Without dead ends: 36 [2020-12-01 15:41:02,739 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 [2020-12-01 15:41:02,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-01 15:41:02,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-01 15:41:02,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-01 15:41:02,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2020-12-01 15:41:02,791 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2020-12-01 15:41:02,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:02,792 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2020-12-01 15:41:02,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:41:02,792 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2020-12-01 15:41:02,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:41:02,795 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:02,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:02,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:41:02,797 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:02,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:02,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2020-12-01 15:41:02,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:02,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658696597] [2020-12-01 15:41:02,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:41:02,968 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:41:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:41:03,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:41:03,137 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:41:03,145 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:41:03,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:41:03,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:41:03 BoogieIcfgContainer [2020-12-01 15:41:03,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:41:03,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:41:03,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:41:03,213 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:41:03,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:41:02" (3/4) ... [2020-12-01 15:41:03,217 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:41:03,218 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:41:03,220 INFO L168 Benchmark]: Toolchain (without parser) took 2216.79 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 69.1 MB in the beginning and 86.2 MB in the end (delta: -17.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:41:03,221 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 98.6 MB. Free memory is still 56.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:41:03,222 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.74 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 69.1 MB in the beginning and 93.0 MB in the end (delta: -23.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:41:03,223 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.45 ms. Allocated memory is still 119.5 MB. Free memory was 93.0 MB in the beginning and 90.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:41:03,224 INFO L168 Benchmark]: Boogie Preprocessor took 52.94 ms. Allocated memory is still 119.5 MB. Free memory was 90.9 MB in the beginning and 88.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:41:03,225 INFO L168 Benchmark]: RCFGBuilder took 701.98 ms. Allocated memory is still 119.5 MB. Free memory was 88.8 MB in the beginning and 62.0 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:41:03,226 INFO L168 Benchmark]: TraceAbstraction took 986.81 ms. Allocated memory is still 119.5 MB. Free memory was 61.5 MB in the beginning and 86.2 MB in the end (delta: -24.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:41:03,227 INFO L168 Benchmark]: Witness Printer took 5.78 ms. Allocated memory is still 119.5 MB. Free memory is still 86.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:41:03,232 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 98.6 MB. Free memory is still 56.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 390.74 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 69.1 MB in the beginning and 93.0 MB in the end (delta: -23.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.45 ms. Allocated memory is still 119.5 MB. Free memory was 93.0 MB in the beginning and 90.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.94 ms. Allocated memory is still 119.5 MB. Free memory was 90.9 MB in the beginning and 88.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 701.98 ms. Allocated memory is still 119.5 MB. Free memory was 88.8 MB in the beginning and 62.0 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 986.81 ms. Allocated memory is still 119.5 MB. Free memory was 61.5 MB in the beginning and 86.2 MB in the end (delta: -24.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.78 ms. Allocated memory is still 119.5 MB. Free memory is still 86.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 84, overapproximation of someBinaryDOUBLEComparisonOperation at line 160. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L156] double x = 0.0; [L67] double w, s1, s2, z; [L68] __int32_t ix, hx, id; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L71] ieee_double_shape_type gh_u; [L72] gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] (hx) = gh_u.parts.msw [L75] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L76] COND TRUE ix >= 0x44100000 [L77] __uint32_t low; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L79] ieee_double_shape_type gl_u; [L80] gl_u.value = (x) [L81] EXPR gl_u.parts.lsw [L81] (low) = gl_u.parts.lsw [L83] COND TRUE ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0)) [L84] return x + x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L157] double res = atan_double(x); [L160] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L160] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L3] __assert_fail("0", "double_req_bl_0620b.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-69874e2 [2020-12-01 15:41:06,247 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-12-01 15:41:06,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:41:06,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:41:06,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:41:06,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:41:06,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:41:06,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:41:06,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:41:06,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:41:06,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:41:06,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:41:06,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:41:06,425 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:41:06,482 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:41:06,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:41:06,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:41:06,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:41:06,488 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:41:06,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:41:06,489 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:41:06,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:41:06,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:41:06,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:41:06,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:41:06,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:41:06,492 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:41:06,492 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:41:06,493 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:41:06,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:41:06,493 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:41:06,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:41:06,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:41:06,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:41:06,495 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:41:06,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:41:06,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:41:06,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:41:06,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:41:06,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:41:06,497 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:41:06,498 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:41:06,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:41:06,498 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:41:06,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:41:06,499 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_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a3f551236e6278c9c002017bfa081dd6b42c960 [2020-12-01 15:41:06,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:41:07,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:41:07,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:41:07,038 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:41:07,038 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:41:07,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2020-12-01 15:41:07,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/data/ffd9019f9/10a771fec80e47bf9a29a7de36a28d2c/FLAGcd3c00c36 [2020-12-01 15:41:07,851 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:41:07,856 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2020-12-01 15:41:07,869 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/data/ffd9019f9/10a771fec80e47bf9a29a7de36a28d2c/FLAGcd3c00c36 [2020-12-01 15:41:08,193 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/data/ffd9019f9/10a771fec80e47bf9a29a7de36a28d2c [2020-12-01 15:41:08,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:41:08,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:41:08,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:41:08,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:41:08,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:41:08,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:41:08" (1/1) ... [2020-12-01 15:41:08,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12344e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:08, skipping insertion in model container [2020-12-01 15:41:08,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:41:08" (1/1) ... [2020-12-01 15:41:08,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:41:08,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:41:08,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:41:08,638 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:41:08,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:41:08,833 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:41:08,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:08 WrapperNode [2020-12-01 15:41:08,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:41:08,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:41:08,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:41:08,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:41:08,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:08" (1/1) ... [2020-12-01 15:41:08,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:08" (1/1) ... [2020-12-01 15:41:08,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:41:08,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:41:08,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:41:08,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:41:08,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:08" (1/1) ... [2020-12-01 15:41:08,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:08" (1/1) ... [2020-12-01 15:41:08,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:08" (1/1) ... [2020-12-01 15:41:08,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:08" (1/1) ... [2020-12-01 15:41:08,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:08" (1/1) ... [2020-12-01 15:41:08,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:08" (1/1) ... [2020-12-01 15:41:08,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:08" (1/1) ... [2020-12-01 15:41:08,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:41:09,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:41:09,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:41:09,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:41:09,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/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 [2020-12-01 15:41:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 15:41:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 15:41:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:41:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:41:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-01 15:41:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 15:41:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:41:09,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:41:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 15:41:09,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:41:27,208 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:41:27,211 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-01 15:41:27,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:41:27 BoogieIcfgContainer [2020-12-01 15:41:27,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:41:27,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:41:27,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:41:27,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:41:27,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:41:08" (1/3) ... [2020-12-01 15:41:27,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4702de84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:41:27, skipping insertion in model container [2020-12-01 15:41:27,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:08" (2/3) ... [2020-12-01 15:41:27,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4702de84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:41:27, skipping insertion in model container [2020-12-01 15:41:27,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:41:27" (3/3) ... [2020-12-01 15:41:27,230 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2020-12-01 15:41:27,243 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:41:27,247 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:41:27,257 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:41:27,295 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:41:27,295 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:41:27,295 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:41:27,295 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:41:27,296 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:41:27,296 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:41:27,296 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:41:27,296 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:41:27,308 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-12-01 15:41:27,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:41:27,313 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:27,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:27,314 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:27,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:27,319 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2020-12-01 15:41:27,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:41:27,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954355014] [2020-12-01 15:41:27,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/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 [2020-12-01 15:41:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:27,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 15:41:27,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:41:27,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:27,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:41:27,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:27,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954355014] [2020-12-01 15:41:27,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:27,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:41:27,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75632546] [2020-12-01 15:41:27,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:41:27,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:41:27,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:41:27,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:41:27,813 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-12-01 15:41:27,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:27,831 INFO L93 Difference]: Finished difference Result 77 states and 121 transitions. [2020-12-01 15:41:27,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:41:27,832 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-01 15:41:27,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:27,841 INFO L225 Difference]: With dead ends: 77 [2020-12-01 15:41:27,841 INFO L226 Difference]: Without dead ends: 36 [2020-12-01 15:41:27,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:41:27,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-01 15:41:27,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-01 15:41:27,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-01 15:41:27,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2020-12-01 15:41:27,882 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2020-12-01 15:41:27,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:27,883 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2020-12-01 15:41:27,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:41:27,883 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2020-12-01 15:41:27,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:41:27,885 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:27,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:28,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:41:28,105 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:28,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:28,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2020-12-01 15:41:28,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:41:28,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208870071] [2020-12-01 15:41:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/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 [2020-12-01 15:41:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:28,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:41:28,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:41:29,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:29,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:41:29,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:29,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208870071] [2020-12-01 15:41:29,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:29,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-12-01 15:41:29,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484030855] [2020-12-01 15:41:29,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:41:29,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:41:29,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:41:29,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:41:29,699 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand 8 states. [2020-12-01 15:41:30,159 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-01 15:41:39,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:39,141 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2020-12-01 15:41:39,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:41:39,144 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-12-01 15:41:39,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:39,145 INFO L225 Difference]: With dead ends: 59 [2020-12-01 15:41:39,145 INFO L226 Difference]: Without dead ends: 32 [2020-12-01 15:41:39,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:41:39,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-01 15:41:39,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2020-12-01 15:41:39,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-01 15:41:39,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-12-01 15:41:39,152 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2020-12-01 15:41:39,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:39,153 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-12-01 15:41:39,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:41:39,153 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-12-01 15:41:39,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:41:39,154 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:39,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:39,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:41:39,356 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:39,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:39,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1440122883, now seen corresponding path program 1 times [2020-12-01 15:41:39,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:41:39,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915062781] [2020-12-01 15:41:39,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/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 [2020-12-01 15:41:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:39,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:41:39,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:41:40,305 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 1 [2020-12-01 15:41:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:40,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:41:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:40,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915062781] [2020-12-01 15:41:40,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:40,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-12-01 15:41:40,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117212330] [2020-12-01 15:41:40,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:41:40,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:41:40,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:41:40,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:41:40,821 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2020-12-01 15:41:41,458 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-01 15:41:42,176 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-01 15:41:58,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:58,810 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-12-01 15:41:58,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:41:58,817 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-12-01 15:41:58,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:58,818 INFO L225 Difference]: With dead ends: 35 [2020-12-01 15:41:58,819 INFO L226 Difference]: Without dead ends: 32 [2020-12-01 15:41:58,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:41:58,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-01 15:41:58,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2020-12-01 15:41:58,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-01 15:41:58,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-12-01 15:41:58,825 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2020-12-01 15:41:58,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:58,826 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-12-01 15:41:58,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:41:58,826 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-12-01 15:41:58,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 15:41:58,827 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:58,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:59,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:41:59,052 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:59,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:59,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1041172097, now seen corresponding path program 1 times [2020-12-01 15:41:59,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:41:59,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897759654] [2020-12-01 15:41:59,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/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 [2020-12-01 15:42:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:03,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:42:03,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:42:03,902 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-01 15:42:04,225 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-01 15:42:04,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:42:04,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:42:07,333 WARN L197 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 6 [2020-12-01 15:42:08,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:42:08,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897759654] [2020-12-01 15:42:08,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:08,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-01 15:42:08,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893953812] [2020-12-01 15:42:08,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:42:08,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:42:08,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:42:08,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:42:08,381 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2020-12-01 15:42:09,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:09,262 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-12-01 15:42:09,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:42:09,272 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-01 15:42:09,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:09,272 INFO L225 Difference]: With dead ends: 32 [2020-12-01 15:42:09,272 INFO L226 Difference]: Without dead ends: 18 [2020-12-01 15:42:09,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:42:09,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-01 15:42:09,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-12-01 15:42:09,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-01 15:42:09,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-12-01 15:42:09,277 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-12-01 15:42:09,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:09,277 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-12-01 15:42:09,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:42:09,277 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-12-01 15:42:09,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 15:42:09,278 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:09,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:42:09,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-01 15:42:09,479 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:09,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:09,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1453962584, now seen corresponding path program 1 times [2020-12-01 15:42:09,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:42:09,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604769956] [2020-12-01 15:42:09,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/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 [2020-12-01 15:42:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:09,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-01 15:42:09,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:42:10,920 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:42:11,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:42:11,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:42:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:42:14,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604769956] [2020-12-01 15:42:14,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:14,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-12-01 15:42:14,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039971145] [2020-12-01 15:42:14,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-01 15:42:14,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:42:14,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-01 15:42:14,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-12-01 15:42:14,260 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2020-12-01 15:42:15,764 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-01 15:42:16,238 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-01 15:42:16,672 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-01 15:42:17,103 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-01 15:42:17,531 WARN L197 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-01 15:42:17,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:17,560 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-12-01 15:42:17,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:42:17,561 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-12-01 15:42:17,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:17,562 INFO L225 Difference]: With dead ends: 18 [2020-12-01 15:42:17,562 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:42:17,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-12-01 15:42:17,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:42:17,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:42:17,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:42:17,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:42:17,563 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-12-01 15:42:17,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:17,563 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:42:17,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-01 15:42:17,563 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:42:17,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:42:17,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-01 15:42:17,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:42:18,192 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-01 15:42:18,688 WARN L197 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-01 15:42:19,137 WARN L197 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-01 15:42:19,366 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-01 15:42:19,368 INFO L262 CegarLoopResult]: For program point L85(lines 85 88) no Hoare annotation was computed. [2020-12-01 15:42:19,368 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 15:42:19,368 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-12-01 15:42:19,368 INFO L262 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-12-01 15:42:19,369 INFO L262 CegarLoopResult]: For program point L160-2(lines 160 163) no Hoare annotation was computed. [2020-12-01 15:42:19,369 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:42:19,369 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:42:19,369 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-12-01 15:42:19,369 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-12-01 15:42:19,369 INFO L262 CegarLoopResult]: For program point L78-3(lines 76 89) no Hoare annotation was computed. [2020-12-01 15:42:19,369 INFO L262 CegarLoopResult]: For program point L70-1(lines 70 74) no Hoare annotation was computed. [2020-12-01 15:42:19,370 INFO L258 CegarLoopResult]: At program point L70-2(lines 70 74) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_atan~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= (_ +zero 11 53) ULTIMATE.start_atan_double_~x)) [2020-12-01 15:42:19,370 INFO L262 CegarLoopResult]: For program point L70-3(lines 70 74) no Hoare annotation was computed. [2020-12-01 15:42:19,370 INFO L262 CegarLoopResult]: For program point L128(lines 128 133) no Hoare annotation was computed. [2020-12-01 15:42:19,370 INFO L262 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-12-01 15:42:19,370 INFO L258 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2020-12-01 15:42:19,370 INFO L258 CegarLoopResult]: At program point L145(lines 136 146) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) |ULTIMATE.start_main_#t~short38| (= currentRoundingMode roundNearestTiesToEven) (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= ~huge_atan~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (exists ((|v_skolemized_q#valueAsBitvector_14| (_ BitVec 64))) (and (= ULTIMATE.start___signbit_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_14|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_14|)) (_ +zero 11 53)))) (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) (= (_ +zero 11 53) ULTIMATE.start_atan_double_~x) (= |ULTIMATE.start_atan_double_#res| (_ +zero 11 53)) (= ULTIMATE.start___signbit_double_~x (_ +zero 11 53))) [2020-12-01 15:42:19,371 INFO L262 CegarLoopResult]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2020-12-01 15:42:19,371 INFO L258 CegarLoopResult]: At program point L139-2(lines 139 143) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) |ULTIMATE.start_main_#t~short38| (= currentRoundingMode roundNearestTiesToEven) (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= ~huge_atan~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= (_ +zero 11 53) ULTIMATE.start_atan_double_~x) (= |ULTIMATE.start_atan_double_#res| (_ +zero 11 53)) (= ULTIMATE.start___signbit_double_~x (_ +zero 11 53))) [2020-12-01 15:42:19,371 INFO L262 CegarLoopResult]: For program point L139-3(lines 139 143) no Hoare annotation was computed. [2020-12-01 15:42:19,371 INFO L262 CegarLoopResult]: For program point L98(lines 98 114) no Hoare annotation was computed. [2020-12-01 15:42:19,371 INFO L258 CegarLoopResult]: At program point L32(lines 19 33) the Hoare annotation is: false [2020-12-01 15:42:19,371 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:42:19,371 INFO L262 CegarLoopResult]: For program point L90(lines 90 115) no Hoare annotation was computed. [2020-12-01 15:42:19,372 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:42:19,372 INFO L262 CegarLoopResult]: For program point L107(lines 107 113) no Hoare annotation was computed. [2020-12-01 15:42:19,372 INFO L262 CegarLoopResult]: For program point L107-2(lines 90 115) no Hoare annotation was computed. [2020-12-01 15:42:19,372 INFO L265 CegarLoopResult]: At program point L165(lines 148 166) the Hoare annotation is: true [2020-12-01 15:42:19,372 INFO L262 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-12-01 15:42:19,372 INFO L262 CegarLoopResult]: For program point L99(lines 99 105) no Hoare annotation was computed. [2020-12-01 15:42:19,372 INFO L262 CegarLoopResult]: For program point L132-2(line 132) no Hoare annotation was computed. [2020-12-01 15:42:19,372 INFO L258 CegarLoopResult]: At program point L132-3(lines 66 134) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_atan~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= (_ +zero 11 53) ULTIMATE.start_atan_double_~x) (= |ULTIMATE.start_atan_double_#res| (_ +zero 11 53))) [2020-12-01 15:42:19,373 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:42:19,373 INFO L262 CegarLoopResult]: For program point L91(lines 91 94) no Hoare annotation was computed. [2020-12-01 15:42:19,373 INFO L262 CegarLoopResult]: For program point L91-2(lines 91 94) no Hoare annotation was computed. [2020-12-01 15:42:19,373 INFO L262 CegarLoopResult]: For program point L92(lines 92 93) no Hoare annotation was computed. [2020-12-01 15:42:19,373 INFO L262 CegarLoopResult]: For program point L26(lines 26 31) no Hoare annotation was computed. [2020-12-01 15:42:19,373 INFO L262 CegarLoopResult]: For program point L26-1(lines 19 33) no Hoare annotation was computed. [2020-12-01 15:42:19,373 INFO L262 CegarLoopResult]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2020-12-01 15:42:19,373 INFO L262 CegarLoopResult]: For program point L76(lines 76 89) no Hoare annotation was computed. [2020-12-01 15:42:19,387 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,392 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,395 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,395 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,395 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,396 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,401 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,401 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,403 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,404 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,406 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:42:19 BoogieIcfgContainer [2020-12-01 15:42:19,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:42:19,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:42:19,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:42:19,410 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:42:19,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:41:27" (3/4) ... [2020-12-01 15:42:19,414 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:42:19,429 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-01 15:42:19,429 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-01 15:42:19,430 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:42:19,431 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:42:19,458 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && ~Pluszero~LONGDOUBLE() == x) && \result == ~Pluszero~LONGDOUBLE() [2020-12-01 15:42:19,460 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && aux-res == 0.0 && __signbit_double(res) == 0-aux) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~Pluszero~LONGDOUBLE() == res) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && ~Pluszero~LONGDOUBLE() == x) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() [2020-12-01 15:42:19,461 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && aux-res == 0.0 && __signbit_double(res) == 0-aux) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~Pluszero~LONGDOUBLE() == res) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && (\exists v_skolemized_q#valueAsBitvector_14 : bv64 :: msw == v_skolemized_q#valueAsBitvector_14[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) == ~Pluszero~LONGDOUBLE())) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == x) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() [2020-12-01 15:42:19,506 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_862267af-d379-4ef9-a11f-b9e0d3d0e6f3/bin/uautomizer/witness.graphml [2020-12-01 15:42:19,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:42:19,507 INFO L168 Benchmark]: Toolchain (without parser) took 71306.85 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.9 MB in the beginning and 35.1 MB in the end (delta: -6.2 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:19,508 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 52.4 MB. Free memory was 34.1 MB in the beginning and 34.1 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:42:19,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.39 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.7 MB in the beginning and 48.9 MB in the end (delta: -20.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:19,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.48 ms. Allocated memory is still 69.2 MB. Free memory was 48.7 MB in the beginning and 46.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:19,510 INFO L168 Benchmark]: Boogie Preprocessor took 100.49 ms. Allocated memory is still 69.2 MB. Free memory was 46.4 MB in the beginning and 44.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:19,510 INFO L168 Benchmark]: RCFGBuilder took 18208.87 ms. Allocated memory is still 69.2 MB. Free memory was 43.9 MB in the beginning and 46.0 MB in the end (delta: -2.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:19,511 INFO L168 Benchmark]: TraceAbstraction took 52192.78 ms. Allocated memory is still 69.2 MB. Free memory was 45.7 MB in the beginning and 40.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:19,511 INFO L168 Benchmark]: Witness Printer took 96.97 ms. Allocated memory is still 69.2 MB. Free memory was 40.7 MB in the beginning and 35.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:19,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 52.4 MB. Free memory was 34.1 MB in the beginning and 34.1 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 629.39 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.7 MB in the beginning and 48.9 MB in the end (delta: -20.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.48 ms. Allocated memory is still 69.2 MB. Free memory was 48.7 MB in the beginning and 46.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 100.49 ms. Allocated memory is still 69.2 MB. Free memory was 46.4 MB in the beginning and 44.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 18208.87 ms. Allocated memory is still 69.2 MB. Free memory was 43.9 MB in the beginning and 46.0 MB in the end (delta: -2.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 52192.78 ms. Allocated memory is still 69.2 MB. Free memory was 45.7 MB in the beginning and 40.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. * Witness Printer took 96.97 ms. Allocated memory is still 69.2 MB. Free memory was 40.7 MB in the beginning and 35.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant [2020-12-01 15:42:19,524 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,526 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && ~Pluszero~LONGDOUBLE() == x) && \result == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 136]: Loop Invariant [2020-12-01 15:42:19,527 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,528 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,528 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,528 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,529 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:19,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,531 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,531 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && aux-res == 0.0 && __signbit_double(res) == 0-aux) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~Pluszero~LONGDOUBLE() == res) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && (\exists v_skolemized_q#valueAsBitvector_14 : bv64 :: msw == v_skolemized_q#valueAsBitvector_14[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) == ~Pluszero~LONGDOUBLE())) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == x) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant [2020-12-01 15:42:19,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,537 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,537 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,538 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,543 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,545 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,545 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && aux-res == 0.0 && __signbit_double(res) == 0-aux) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~Pluszero~LONGDOUBLE() == res) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && ~Pluszero~LONGDOUBLE() == x) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 70]: Loop Invariant [2020-12-01 15:42:19,548 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,550 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:19,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:19,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && ~Pluszero~LONGDOUBLE() == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 50.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 31.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 113 SDtfs, 180 SDslu, 180 SDs, 0 SdLazy, 70 SolverSat, 14 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 27.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 113 HoareAnnotationTreeSize, 8 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 5.4s SatisfiabilityAnalysisTime, 11.8s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 16 QuantifiedInterpolants, 9201 SizeOfPredicates, 28 NumberOfNonLiveVariables, 625 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...