./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 .......................................................................................................................................................................................................................................................................................................... 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_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:05:24,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:24,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:24,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:24,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:24,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:24,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:24,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:24,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:24,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:24,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:24,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:24,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:24,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:24,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:24,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:24,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:24,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:24,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:24,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:24,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:24,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:24,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:24,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:24,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:24,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:24,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:24,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:24,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:24,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:24,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:24,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:24,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:24,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:24,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:24,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:24,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:24,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:24,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:24,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:24,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:24,631 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:05:24,656 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:24,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:24,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:24,658 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:24,658 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:24,658 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:24,658 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:05:24,658 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:24,659 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:24,659 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:05:24,659 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:05:24,659 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:24,659 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:05:24,660 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:05:24,660 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:05:24,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:24,661 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:24,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:05:24,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:24,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:24,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:24,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:24,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:24,662 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:24,662 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:24,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:24,663 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:24,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:24,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:24,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:24,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:24,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:24,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:24,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:24,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:24,665 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:05:24,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:05:24,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:24,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:24,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:24,666 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 [2020-11-22 13:05:24,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:24,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:24,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:24,947 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:24,948 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:24,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2020-11-22 13:05:25,036 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/data/c3b1d746c/5d27d1aa496747098c8e0d553cbd543d/FLAG830d10a98 [2020-11-22 13:05:25,471 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:25,472 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2020-11-22 13:05:25,478 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/data/c3b1d746c/5d27d1aa496747098c8e0d553cbd543d/FLAG830d10a98 [2020-11-22 13:05:25,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/data/c3b1d746c/5d27d1aa496747098c8e0d553cbd543d [2020-11-22 13:05:25,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:25,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:25,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:25,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:25,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:25,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:25" (1/1) ... [2020-11-22 13:05:25,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76891e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25, skipping insertion in model container [2020-11-22 13:05:25,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:25" (1/1) ... [2020-11-22 13:05:25,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:25,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:26,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:26,149 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:05:26,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:26,212 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:05:26,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:26 WrapperNode [2020-11-22 13:05:26,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:26,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:26,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:05:26,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:05:26,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:26" (1/1) ... [2020-11-22 13:05:26,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:26" (1/1) ... [2020-11-22 13:05:26,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:26,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:05:26,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:05:26,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:05:26,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:26" (1/1) ... [2020-11-22 13:05:26,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:26" (1/1) ... [2020-11-22 13:05:26,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:26" (1/1) ... [2020-11-22 13:05:26,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:26" (1/1) ... [2020-11-22 13:05:26,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:26" (1/1) ... [2020-11-22 13:05:26,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:26" (1/1) ... [2020-11-22 13:05:26,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:26" (1/1) ... [2020-11-22 13:05:26,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:05:26,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:05:26,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:05:26,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:05:26,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:05:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:05:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 13:05:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:05:26,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:05:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 13:05:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:05:27,137 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:05:27,138 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-22 13:05:27,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:27 BoogieIcfgContainer [2020-11-22 13:05:27,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:05:27,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:05:27,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:05:27,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:05:27,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:05:25" (1/3) ... [2020-11-22 13:05:27,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a10607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:27, skipping insertion in model container [2020-11-22 13:05:27,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:26" (2/3) ... [2020-11-22 13:05:27,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a10607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:27, skipping insertion in model container [2020-11-22 13:05:27,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:27" (3/3) ... [2020-11-22 13:05:27,153 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2020-11-22 13:05:27,168 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:05:27,172 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:05:27,186 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:05:27,225 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:05:27,226 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:05:27,226 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:05:27,226 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:05:27,227 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:05:27,227 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:05:27,227 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:05:27,227 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:05:27,240 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-11-22 13:05:27,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:05:27,247 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:27,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:27,248 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:27,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:27,255 INFO L82 PathProgramCache]: Analyzing trace with hash 709760188, now seen corresponding path program 1 times [2020-11-22 13:05:27,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:27,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539527013] [2020-11-22 13:05:27,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:27,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:27,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539527013] [2020-11-22 13:05:27,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:27,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:05:27,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73782637] [2020-11-22 13:05:27,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:05:27,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:05:27,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:05:27,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:05:27,438 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-11-22 13:05:27,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:27,456 INFO L93 Difference]: Finished difference Result 35 states and 51 transitions. [2020-11-22 13:05:27,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:05:27,458 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-22 13:05:27,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:27,478 INFO L225 Difference]: With dead ends: 35 [2020-11-22 13:05:27,478 INFO L226 Difference]: Without dead ends: 16 [2020-11-22 13:05:27,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:05:27,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-22 13:05:27,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-22 13:05:27,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-22 13:05:27,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-22 13:05:27,525 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2020-11-22 13:05:27,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:27,525 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-22 13:05:27,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:05:27,525 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-22 13:05:27,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:05:27,526 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:27,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:27,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:05:27,527 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:27,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:27,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1365755737, now seen corresponding path program 1 times [2020-11-22 13:05:27,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:27,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866220479] [2020-11-22 13:05:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:27,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:27,686 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:27,725 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:05:27,725 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:05:27,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:05:27,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:05:27 BoogieIcfgContainer [2020-11-22 13:05:27,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:05:27,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:05:27,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:05:27,762 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:05:27,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:27" (3/4) ... [2020-11-22 13:05:27,765 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:05:27,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:05:27,766 INFO L168 Benchmark]: Toolchain (without parser) took 1882.37 ms. Allocated memory is still 96.5 MB. Free memory was 66.7 MB in the beginning and 50.3 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:27,767 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 77.6 MB. Free memory is still 35.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:27,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.23 ms. Allocated memory is still 96.5 MB. Free memory was 66.2 MB in the beginning and 73.6 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:27,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.87 ms. Allocated memory is still 96.5 MB. Free memory was 73.6 MB in the beginning and 71.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:27,769 INFO L168 Benchmark]: Boogie Preprocessor took 31.03 ms. Allocated memory is still 96.5 MB. Free memory was 71.5 MB in the beginning and 70.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:27,770 INFO L168 Benchmark]: RCFGBuilder took 856.26 ms. Allocated memory is still 96.5 MB. Free memory was 70.0 MB in the beginning and 73.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:27,771 INFO L168 Benchmark]: TraceAbstraction took 619.70 ms. Allocated memory is still 96.5 MB. Free memory was 72.8 MB in the beginning and 50.6 MB in the end (delta: 22.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:27,773 INFO L168 Benchmark]: Witness Printer took 3.51 ms. Allocated memory is still 96.5 MB. Free memory was 50.6 MB in the beginning and 50.3 MB in the end (delta: 298.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:27,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 77.6 MB. Free memory is still 35.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 318.23 ms. Allocated memory is still 96.5 MB. Free memory was 66.2 MB in the beginning and 73.6 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.87 ms. Allocated memory is still 96.5 MB. Free memory was 73.6 MB in the beginning and 71.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.03 ms. Allocated memory is still 96.5 MB. Free memory was 71.5 MB in the beginning and 70.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 856.26 ms. Allocated memory is still 96.5 MB. Free memory was 70.0 MB in the beginning and 73.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 619.70 ms. Allocated memory is still 96.5 MB. Free memory was 72.8 MB in the beginning and 50.6 MB in the end (delta: 22.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.51 ms. Allocated memory is still 96.5 MB. Free memory was 50.6 MB in the beginning and 50.3 MB in the end (delta: 298.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someUnaryDOUBLEoperation at line 81. Possible FailurePath: [L81] double x = -0.0; [L82] double y = 0.0; [L26] __uint32_t msw, lsw; [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (msw) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (lsw) = ew_u.parts.lsw [L35-L36] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L38-L39] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L41-L42] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L45-L46] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L49] return 0; [L54] COND TRUE __fpclassify_double(x) == 0 [L55] return y; [L83] double res = fmax_double(x, y); [L86] EXPR res == 0.0 && __signbit_double(res) == 0 [L86] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L3] __assert_fail("0", "double_req_bl_1252a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 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=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:05:30,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:30,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:30,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:30,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:30,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:30,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:30,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:30,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:30,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:30,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:30,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:30,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:30,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:30,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:30,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:30,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:30,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:30,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:30,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:30,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:30,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:30,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:30,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:30,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:30,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:30,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:30,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:30,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:30,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:30,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:30,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:30,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:30,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:30,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:30,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:30,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:30,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:30,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:30,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:30,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:30,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:05:30,522 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:30,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:30,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:30,525 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:30,525 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:30,525 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:30,526 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:30,526 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:30,526 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:30,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:30,529 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:30,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:30,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:30,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:30,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:30,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:30,530 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:30,531 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:05:30,531 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:05:30,531 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:30,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:30,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:30,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:30,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:30,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:05:30,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:30,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:30,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:30,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:30,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:30,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:30,534 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:05:30,534 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:05:30,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:30,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:30,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:30,535 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_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 [2020-11-22 13:05:30,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:30,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:30,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:30,933 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:30,934 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:30,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2020-11-22 13:05:31,006 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/data/8bc9a2d4c/33ac503109924efe9974c9660377864d/FLAGcb35a4417 [2020-11-22 13:05:31,616 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:31,619 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2020-11-22 13:05:31,627 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/data/8bc9a2d4c/33ac503109924efe9974c9660377864d/FLAGcb35a4417 [2020-11-22 13:05:31,915 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/data/8bc9a2d4c/33ac503109924efe9974c9660377864d [2020-11-22 13:05:31,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:31,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:31,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:31,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:31,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:31,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:31" (1/1) ... [2020-11-22 13:05:31,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b397c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:31, skipping insertion in model container [2020-11-22 13:05:31,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:31" (1/1) ... [2020-11-22 13:05:31,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:31,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:32,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:32,121 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:05:32,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:32,177 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:05:32,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:32 WrapperNode [2020-11-22 13:05:32,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:32,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:32,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:05:32,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:05:32,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:32" (1/1) ... [2020-11-22 13:05:32,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:32" (1/1) ... [2020-11-22 13:05:32,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:32,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:05:32,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:05:32,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:05:32,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:32" (1/1) ... [2020-11-22 13:05:32,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:32" (1/1) ... [2020-11-22 13:05:32,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:32" (1/1) ... [2020-11-22 13:05:32,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:32" (1/1) ... [2020-11-22 13:05:32,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:32" (1/1) ... [2020-11-22 13:05:32,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:32" (1/1) ... [2020-11-22 13:05:32,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:32" (1/1) ... [2020-11-22 13:05:32,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:05:32,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:05:32,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:05:32,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:05:32,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-22 13:05:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:05:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:05:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 13:05:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:05:32,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:05:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:05:32,999 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:05:33,000 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-22 13:05:33,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:33 BoogieIcfgContainer [2020-11-22 13:05:33,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:05:33,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:05:33,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:05:33,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:05:33,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:05:31" (1/3) ... [2020-11-22 13:05:33,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64356d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:33, skipping insertion in model container [2020-11-22 13:05:33,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:32" (2/3) ... [2020-11-22 13:05:33,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64356d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:33, skipping insertion in model container [2020-11-22 13:05:33,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:33" (3/3) ... [2020-11-22 13:05:33,011 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2020-11-22 13:05:33,022 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:05:33,027 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:05:33,038 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:05:33,077 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:05:33,077 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:05:33,078 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:05:33,078 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:05:33,078 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:05:33,078 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:05:33,078 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:05:33,079 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:05:33,093 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-22 13:05:33,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:05:33,099 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:33,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:33,100 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:33,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:33,106 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2020-11-22 13:05:33,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:33,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071752825] [2020-11-22 13:05:33,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 13:05:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:33,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:05:33,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:33,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:33,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:33,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071752825] [2020-11-22 13:05:33,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:33,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:05:33,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565692768] [2020-11-22 13:05:33,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:05:33,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:33,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:05:33,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:05:33,321 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-11-22 13:05:33,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:33,354 INFO L93 Difference]: Finished difference Result 63 states and 99 transitions. [2020-11-22 13:05:33,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:05:33,356 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-22 13:05:33,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:33,367 INFO L225 Difference]: With dead ends: 63 [2020-11-22 13:05:33,368 INFO L226 Difference]: Without dead ends: 29 [2020-11-22 13:05:33,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:05:33,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-22 13:05:33,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-22 13:05:33,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-22 13:05:33,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-11-22 13:05:33,405 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2020-11-22 13:05:33,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:33,406 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-11-22 13:05:33,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:05:33,406 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-11-22 13:05:33,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 13:05:33,407 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:33,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:33,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:05:33,623 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:33,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:33,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2020-11-22 13:05:33,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:33,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835681249] [2020-11-22 13:05:33,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 13:05:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:33,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:05:33,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:33,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:33,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:33,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835681249] [2020-11-22 13:05:33,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:33,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:05:33,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416396656] [2020-11-22 13:05:33,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:05:33,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:33,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:05:33,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:05:33,813 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 6 states. [2020-11-22 13:05:33,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:33,977 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2020-11-22 13:05:33,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:05:33,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-22 13:05:33,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:33,980 INFO L225 Difference]: With dead ends: 68 [2020-11-22 13:05:33,980 INFO L226 Difference]: Without dead ends: 59 [2020-11-22 13:05:33,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:05:33,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-22 13:05:33,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 31. [2020-11-22 13:05:33,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-22 13:05:33,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-22 13:05:33,989 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2020-11-22 13:05:33,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:33,989 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-22 13:05:33,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:05:33,989 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-22 13:05:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-22 13:05:33,990 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:33,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:34,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:05:34,208 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:34,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:34,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times [2020-11-22 13:05:34,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:34,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457899999] [2020-11-22 13:05:34,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 13:05:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:34,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-22 13:05:34,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:34,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:34,400 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 13:05:34,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:34,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457899999] [2020-11-22 13:05:34,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:34,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:05:34,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628010801] [2020-11-22 13:05:34,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:05:34,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:34,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:05:34,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:05:34,459 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 6 states. [2020-11-22 13:05:34,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:34,637 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-11-22 13:05:34,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:05:34,638 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-22 13:05:34,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:34,638 INFO L225 Difference]: With dead ends: 52 [2020-11-22 13:05:34,639 INFO L226 Difference]: Without dead ends: 28 [2020-11-22 13:05:34,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:05:34,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-22 13:05:34,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-22 13:05:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-22 13:05:34,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2020-11-22 13:05:34,645 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 14 [2020-11-22 13:05:34,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:34,645 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2020-11-22 13:05:34,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:05:34,646 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2020-11-22 13:05:34,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 13:05:34,646 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:34,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:34,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:05:34,875 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:34,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:34,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1012446717, now seen corresponding path program 1 times [2020-11-22 13:05:34,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:34,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059061710] [2020-11-22 13:05:34,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 13:05:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:34,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:05:34,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:35,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:35,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:35,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:35,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059061710] [2020-11-22 13:05:35,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:35,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:05:35,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918104725] [2020-11-22 13:05:35,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:05:35,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:35,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:05:35,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:05:35,058 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 6 states. [2020-11-22 13:05:35,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:35,267 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2020-11-22 13:05:35,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:05:35,271 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-22 13:05:35,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:35,272 INFO L225 Difference]: With dead ends: 65 [2020-11-22 13:05:35,272 INFO L226 Difference]: Without dead ends: 56 [2020-11-22 13:05:35,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:05:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-22 13:05:35,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 30. [2020-11-22 13:05:35,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-22 13:05:35,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-11-22 13:05:35,278 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 16 [2020-11-22 13:05:35,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:35,278 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-11-22 13:05:35,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:05:35,278 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-11-22 13:05:35,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:05:35,279 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:35,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:35,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:05:35,480 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:35,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:35,480 INFO L82 PathProgramCache]: Analyzing trace with hash -414082333, now seen corresponding path program 1 times [2020-11-22 13:05:35,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:35,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467053676] [2020-11-22 13:05:35,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 13:05:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:35,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:05:35,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:35,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:35,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:35,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467053676] [2020-11-22 13:05:35,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:35,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:05:35,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582520700] [2020-11-22 13:05:35,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:05:35,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:35,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:05:35,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:05:35,676 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 4 states. [2020-11-22 13:05:35,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:35,706 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2020-11-22 13:05:35,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:05:35,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-22 13:05:35,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:35,708 INFO L225 Difference]: With dead ends: 40 [2020-11-22 13:05:35,708 INFO L226 Difference]: Without dead ends: 30 [2020-11-22 13:05:35,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:05:35,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-22 13:05:35,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-22 13:05:35,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-22 13:05:35,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2020-11-22 13:05:35,713 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 18 [2020-11-22 13:05:35,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:35,714 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2020-11-22 13:05:35,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:05:35,714 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2020-11-22 13:05:35,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:05:35,714 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:35,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:35,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:05:35,915 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:35,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:35,916 INFO L82 PathProgramCache]: Analyzing trace with hash -356824031, now seen corresponding path program 1 times [2020-11-22 13:05:35,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:35,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121749510] [2020-11-22 13:05:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-22 13:05:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:36,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 13:05:36,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:36,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:36,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:36,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:36,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121749510] [2020-11-22 13:05:36,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:36,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-22 13:05:36,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977189621] [2020-11-22 13:05:36,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-22 13:05:36,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:36,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-22 13:05:36,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:05:36,178 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand 9 states. [2020-11-22 13:05:36,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:36,292 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2020-11-22 13:05:36,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 13:05:36,292 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-11-22 13:05:36,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:36,293 INFO L225 Difference]: With dead ends: 42 [2020-11-22 13:05:36,293 INFO L226 Difference]: Without dead ends: 39 [2020-11-22 13:05:36,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-11-22 13:05:36,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-22 13:05:36,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2020-11-22 13:05:36,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-22 13:05:36,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2020-11-22 13:05:36,298 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 18 [2020-11-22 13:05:36,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:36,299 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-11-22 13:05:36,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-22 13:05:36,299 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-11-22 13:05:36,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:05:36,299 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:36,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:36,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:05:36,506 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:36,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:36,506 INFO L82 PathProgramCache]: Analyzing trace with hash -208358251, now seen corresponding path program 1 times [2020-11-22 13:05:36,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:36,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885902974] [2020-11-22 13:05:36,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 13:05:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:36,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-22 13:05:36,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:36,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:36,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:36,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:36,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885902974] [2020-11-22 13:05:36,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:36,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-22 13:05:36,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201312326] [2020-11-22 13:05:36,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:05:36,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:36,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:05:36,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:05:36,807 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 8 states. [2020-11-22 13:05:36,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:36,985 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2020-11-22 13:05:36,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:05:36,986 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-11-22 13:05:36,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:36,987 INFO L225 Difference]: With dead ends: 45 [2020-11-22 13:05:36,987 INFO L226 Difference]: Without dead ends: 27 [2020-11-22 13:05:36,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:05:36,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-22 13:05:36,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-22 13:05:36,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-22 13:05:36,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-11-22 13:05:36,992 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2020-11-22 13:05:36,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:36,992 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-11-22 13:05:36,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:05:36,993 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-11-22 13:05:36,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 13:05:36,993 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:36,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:37,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 13:05:37,211 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:37,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:37,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1524231306, now seen corresponding path program 1 times [2020-11-22 13:05:37,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:37,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619552286] [2020-11-22 13:05:37,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-22 13:05:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:37,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-22 13:05:37,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:37,472 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-22 13:05:37,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:37,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:37,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:37,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619552286] [2020-11-22 13:05:37,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:37,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-11-22 13:05:37,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232637574] [2020-11-22 13:05:37,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-22 13:05:37,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:37,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-22 13:05:37,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-11-22 13:05:37,817 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 16 states. [2020-11-22 13:05:38,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:38,143 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-11-22 13:05:38,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:05:38,144 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 22 [2020-11-22 13:05:38,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:38,145 INFO L225 Difference]: With dead ends: 27 [2020-11-22 13:05:38,145 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:05:38,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2020-11-22 13:05:38,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:05:38,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:05:38,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:05:38,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:05:38,146 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-11-22 13:05:38,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:38,146 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:05:38,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-22 13:05:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:05:38,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:05:38,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 13:05:38,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:05:38,720 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 13:05:38,720 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-22 13:05:38,720 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:05:38,720 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 13:05:38,720 INFO L274 CegarLoopResult]: For program point L28-1(lines 28 33) no Hoare annotation was computed. [2020-11-22 13:05:38,721 INFO L270 CegarLoopResult]: At program point L28-2(lines 28 33) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= ULTIMATE.start___fpclassify_double_~x .cse0) (= .cse0 ULTIMATE.start_fmax_double_~x))) [2020-11-22 13:05:38,721 INFO L274 CegarLoopResult]: For program point L28-3(lines 25 50) no Hoare annotation was computed. [2020-11-22 13:05:38,721 INFO L274 CegarLoopResult]: For program point L28-5(lines 28 33) no Hoare annotation was computed. [2020-11-22 13:05:38,721 INFO L270 CegarLoopResult]: At program point L28-6(lines 28 33) the Hoare annotation is: (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x)) [2020-11-22 13:05:38,721 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-22 13:05:38,721 INFO L274 CegarLoopResult]: For program point L28-7(lines 25 50) no Hoare annotation was computed. [2020-11-22 13:05:38,721 INFO L274 CegarLoopResult]: For program point L86-2(lines 86 89) no Hoare annotation was computed. [2020-11-22 13:05:38,721 INFO L274 CegarLoopResult]: For program point L45(lines 45 49) no Hoare annotation was computed. [2020-11-22 13:05:38,721 INFO L274 CegarLoopResult]: For program point L45-1(lines 45 49) no Hoare annotation was computed. [2020-11-22 13:05:38,721 INFO L274 CegarLoopResult]: For program point L54(lines 54 55) no Hoare annotation was computed. [2020-11-22 13:05:38,722 INFO L270 CegarLoopResult]: At program point L71(lines 62 72) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_fmax_double_#res|) |ULTIMATE.start_main_#t~short18| (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (exists ((v_skolemized_v_prenex_5_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_5_3) ((_ extract 62 52) v_skolemized_v_prenex_5_3) ((_ extract 51 0) v_skolemized_v_prenex_5_3)) (_ +zero 11 53)) (= ULTIMATE.start___signbit_double_~msw~1 ((_ extract 63 32) v_skolemized_v_prenex_5_3)))) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|))))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x) (= ULTIMATE.start___signbit_double_~x (_ +zero 11 53))) [2020-11-22 13:05:38,722 INFO L274 CegarLoopResult]: For program point L38(lines 38 49) no Hoare annotation was computed. [2020-11-22 13:05:38,722 INFO L274 CegarLoopResult]: For program point L38-1(lines 38 49) no Hoare annotation was computed. [2020-11-22 13:05:38,722 INFO L274 CegarLoopResult]: For program point L56(lines 56 57) no Hoare annotation was computed. [2020-11-22 13:05:38,722 INFO L274 CegarLoopResult]: For program point L65-1(lines 65 69) no Hoare annotation was computed. [2020-11-22 13:05:38,722 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 13:05:38,722 INFO L270 CegarLoopResult]: At program point L65-2(lines 65 69) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_fmax_double_#res|) |ULTIMATE.start_main_#t~short18| (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|))))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x) (= ULTIMATE.start___signbit_double_~x (_ +zero 11 53))) [2020-11-22 13:05:38,722 INFO L274 CegarLoopResult]: For program point L65-3(lines 65 69) no Hoare annotation was computed. [2020-11-22 13:05:38,722 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:05:38,723 INFO L270 CegarLoopResult]: At program point L49(lines 25 50) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start___fpclassify_double_~msw~0) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.neg (_ +zero 11 53))))) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= ULTIMATE.start___fpclassify_double_~x .cse0) (= .cse0 ULTIMATE.start_fmax_double_~x) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|)))) [2020-11-22 13:05:38,723 INFO L270 CegarLoopResult]: At program point L49-1(lines 25 50) the Hoare annotation is: (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|))))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|))) [2020-11-22 13:05:38,723 INFO L274 CegarLoopResult]: For program point L41(lines 41 49) no Hoare annotation was computed. [2020-11-22 13:05:38,723 INFO L274 CegarLoopResult]: For program point L41-1(lines 41 49) no Hoare annotation was computed. [2020-11-22 13:05:38,723 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:05:38,723 INFO L277 CegarLoopResult]: At program point L91(lines 74 92) the Hoare annotation is: true [2020-11-22 13:05:38,723 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-22 13:05:38,723 INFO L274 CegarLoopResult]: For program point L59-2(line 59) no Hoare annotation was computed. [2020-11-22 13:05:38,723 INFO L270 CegarLoopResult]: At program point L59-3(lines 52 60) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_fmax_double_#res|) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|))))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x)) [2020-11-22 13:05:38,733 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,734 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,734 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,735 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,748 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,748 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,748 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,748 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,750 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,750 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,751 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,751 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,751 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,751 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,752 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,752 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,763 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,763 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,763 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,766 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,766 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,766 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,766 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,767 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,768 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,768 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,768 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,768 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,769 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,769 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,769 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,769 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:05:38 BoogieIcfgContainer [2020-11-22 13:05:38,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:05:38,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:05:38,777 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:05:38,777 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:05:38,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:33" (3/4) ... [2020-11-22 13:05:38,780 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:05:38,794 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-11-22 13:05:38,794 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-22 13:05:38,795 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:05:38,795 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:05:38,819 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_skolemized_v_prenex_1_3 : bv64 :: v_skolemized_v_prenex_1_3[63:32] == msw && ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == y) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && !(0bv32 == \result) [2020-11-22 13:05:38,820 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x [2020-11-22 13:05:38,821 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~Pluszero~LONGDOUBLE() == \result && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE() [2020-11-22 13:05:38,821 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~Pluszero~LONGDOUBLE() == \result && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && (\exists v_skolemized_v_prenex_5_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_5_3[63:63], v_skolemized_v_prenex_5_3[62:52], v_skolemized_v_prenex_5_3[51:0]) == ~Pluszero~LONGDOUBLE() && msw == v_skolemized_v_prenex_5_3[63:32])) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE() [2020-11-22 13:05:38,822 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~Pluszero~LONGDOUBLE() == y && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x) && !(0bv32 == \result) [2020-11-22 13:05:38,870 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_eb9e78b9-a24b-4438-9362-5f974063a5cc/bin/utaipan/witness.graphml [2020-11-22 13:05:38,870 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:05:38,872 INFO L168 Benchmark]: Toolchain (without parser) took 6951.77 ms. Allocated memory was 73.4 MB in the beginning and 104.9 MB in the end (delta: 31.5 MB). Free memory was 55.8 MB in the beginning and 85.6 MB in the end (delta: -29.8 MB). Peak memory consumption was 53.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:38,872 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 73.4 MB. Free memory is still 54.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:38,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.66 ms. Allocated memory is still 73.4 MB. Free memory was 55.5 MB in the beginning and 44.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:38,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.91 ms. Allocated memory is still 73.4 MB. Free memory was 44.4 MB in the beginning and 42.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:38,874 INFO L168 Benchmark]: Boogie Preprocessor took 34.87 ms. Allocated memory is still 73.4 MB. Free memory was 42.6 MB in the beginning and 40.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:38,874 INFO L168 Benchmark]: RCFGBuilder took 717.94 ms. Allocated memory is still 73.4 MB. Free memory was 40.9 MB in the beginning and 40.3 MB in the end (delta: 581.3 kB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:38,875 INFO L168 Benchmark]: TraceAbstraction took 5772.71 ms. Allocated memory was 73.4 MB in the beginning and 104.9 MB in the end (delta: 31.5 MB). Free memory was 40.0 MB in the beginning and 39.4 MB in the end (delta: 554.0 kB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:38,875 INFO L168 Benchmark]: Witness Printer took 93.50 ms. Allocated memory is still 104.9 MB. Free memory was 39.4 MB in the beginning and 85.6 MB in the end (delta: -46.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:38,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 73.4 MB. Free memory is still 54.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 257.66 ms. Allocated memory is still 73.4 MB. Free memory was 55.5 MB in the beginning and 44.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.91 ms. Allocated memory is still 73.4 MB. Free memory was 44.4 MB in the beginning and 42.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.87 ms. Allocated memory is still 73.4 MB. Free memory was 42.6 MB in the beginning and 40.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 717.94 ms. Allocated memory is still 73.4 MB. Free memory was 40.9 MB in the beginning and 40.3 MB in the end (delta: 581.3 kB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5772.71 ms. Allocated memory was 73.4 MB in the beginning and 104.9 MB in the end (delta: 31.5 MB). Free memory was 40.0 MB in the beginning and 39.4 MB in the end (delta: 554.0 kB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. * Witness Printer took 93.50 ms. Allocated memory is still 104.9 MB. Free memory was 39.4 MB in the beginning and 85.6 MB in the end (delta: -46.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 65]: Loop Invariant [2020-11-22 13:05:38,892 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,892 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,892 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,892 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,894 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,894 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,895 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,895 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: ((((((~Pluszero~LONGDOUBLE() == \result && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == y && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 25]: Loop Invariant [2020-11-22 13:05:38,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,897 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,897 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,898 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,898 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,898 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (((~Pluszero~LONGDOUBLE() == y && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x) && !(0bv32 == \result) - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == y && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 25]: Loop Invariant [2020-11-22 13:05:38,902 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,904 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,904 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-22 13:05:38,904 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] Derived loop invariant: ((((\exists v_skolemized_v_prenex_1_3 : bv64 :: v_skolemized_v_prenex_1_3[63:32] == msw && ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == y) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && !(0bv32 == \result) - InvariantResult [Line: 62]: Loop Invariant [2020-11-22 13:05:38,905 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,905 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,908 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-22 13:05:38,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: ((((((((~Pluszero~LONGDOUBLE() == \result && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && (\exists v_skolemized_v_prenex_5_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_5_3[63:63], v_skolemized_v_prenex_5_3[62:52], v_skolemized_v_prenex_5_3[51:0]) == ~Pluszero~LONGDOUBLE() && msw == v_skolemized_v_prenex_5_3[63:32])) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 52]: Loop Invariant [2020-11-22 13:05:38,911 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,911 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,912 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-22 13:05:38,913 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 252 SDtfs, 287 SDslu, 527 SDs, 0 SdLazy, 183 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 196 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 61 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 16 NumberOfFragments, 205 HoareAnnotationTreeSize, 8 FomulaSimplifications, 47 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 240 ConstructedInterpolants, 32 QuantifiedInterpolants, 18200 SizeOfPredicates, 38 NumberOfNonLiveVariables, 555 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...