./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/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 2f0e84dafea36c954c87753335c0002922188c68 .......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/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 2f0e84dafea36c954c87753335c0002922188c68 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 06:17:00,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:17:00,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:17:00,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:17:00,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:17:00,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:17:00,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:17:00,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:17:00,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:17:00,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:17:00,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:17:00,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:17:00,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:17:00,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:17:00,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:17:00,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:17:00,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:17:00,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:17:00,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:17:00,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:17:00,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:17:00,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:17:00,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:17:00,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:17:00,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:17:00,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:17:00,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:17:00,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:17:00,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:17:00,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:17:00,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:17:00,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:17:00,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:17:00,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:17:00,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:17:00,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:17:00,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:17:00,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:17:00,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:17:00,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:17:00,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:17:00,574 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 06:17:00,591 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:17:00,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:17:00,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:17:00,592 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:17:00,592 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:17:00,592 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:17:00,593 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 06:17:00,593 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:17:00,593 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:17:00,593 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 06:17:00,593 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 06:17:00,593 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:17:00,593 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 06:17:00,593 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 06:17:00,593 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 06:17:00,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:17:00,594 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:17:00,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 06:17:00,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:17:00,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:17:00,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:17:00,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:17:00,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:17:00,595 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:17:00,595 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:17:00,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:17:00,595 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:17:00,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:17:00,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:17:00,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:17:00,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:17:00,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:17:00,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:17:00,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:17:00,596 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 06:17:00,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 06:17:00,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:17:00,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:17:00,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:17:00,597 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_8b58c2b9-874d-41fc-a682-e4dfda2384af/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f0e84dafea36c954c87753335c0002922188c68 [2020-12-09 06:17:00,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:17:00,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:17:00,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:17:00,786 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:17:00,786 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:17:00,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2020-12-09 06:17:00,828 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/data/946991576/e3637ec53a1a4d6196690591e160470e/FLAG2092cd797 [2020-12-09 06:17:01,192 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:17:01,193 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2020-12-09 06:17:01,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/data/946991576/e3637ec53a1a4d6196690591e160470e/FLAG2092cd797 [2020-12-09 06:17:01,209 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/data/946991576/e3637ec53a1a4d6196690591e160470e [2020-12-09 06:17:01,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:17:01,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:17:01,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:17:01,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:17:01,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:17:01,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:17:01" (1/1) ... [2020-12-09 06:17:01,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c98c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:01, skipping insertion in model container [2020-12-09 06:17:01,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:17:01" (1/1) ... [2020-12-09 06:17:01,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:17:01,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:17:01,366 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c[1957,1970] [2020-12-09 06:17:01,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:17:01,376 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:17:01,394 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c[1957,1970] [2020-12-09 06:17:01,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:17:01,405 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:17:01,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:01 WrapperNode [2020-12-09 06:17:01,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:17:01,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:17:01,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:17:01,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:17:01,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:01" (1/1) ... [2020-12-09 06:17:01,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:01" (1/1) ... [2020-12-09 06:17:01,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:17:01,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:17:01,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:17:01,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:17:01,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:01" (1/1) ... [2020-12-09 06:17:01,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:01" (1/1) ... [2020-12-09 06:17:01,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:01" (1/1) ... [2020-12-09 06:17:01,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:01" (1/1) ... [2020-12-09 06:17:01,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:01" (1/1) ... [2020-12-09 06:17:01,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:01" (1/1) ... [2020-12-09 06:17:01,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:01" (1/1) ... [2020-12-09 06:17:01,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:17:01,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:17:01,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:17:01,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:17:01,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/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 [2020-12-09 06:17:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 06:17:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 06:17:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 06:17:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:17:01,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:17:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 06:17:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 06:17:01,955 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:17:01,955 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-09 06:17:01,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:01 BoogieIcfgContainer [2020-12-09 06:17:01,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:17:01,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:17:01,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:17:01,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:17:01,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:17:01" (1/3) ... [2020-12-09 06:17:01,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7946921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:17:01, skipping insertion in model container [2020-12-09 06:17:01,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:01" (2/3) ... [2020-12-09 06:17:01,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7946921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:17:01, skipping insertion in model container [2020-12-09 06:17:01,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:01" (3/3) ... [2020-12-09 06:17:01,965 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2020-12-09 06:17:01,977 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:17:01,981 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 06:17:01,991 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 06:17:02,012 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:17:02,012 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 06:17:02,013 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:17:02,013 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:17:02,013 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:17:02,013 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:17:02,013 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:17:02,013 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:17:02,024 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-12-09 06:17:02,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 06:17:02,027 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:17:02,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:17:02,028 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:17:02,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:17:02,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1433219361, now seen corresponding path program 1 times [2020-12-09 06:17:02,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:17:02,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838128794] [2020-12-09 06:17:02,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:17:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:17:02,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:17:02,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838128794] [2020-12-09 06:17:02,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:17:02,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:17:02,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409526754] [2020-12-09 06:17:02,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 06:17:02,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:17:02,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 06:17:02,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 06:17:02,142 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-12-09 06:17:02,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:17:02,153 INFO L93 Difference]: Finished difference Result 35 states and 51 transitions. [2020-12-09 06:17:02,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 06:17:02,154 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-09 06:17:02,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:17:02,159 INFO L225 Difference]: With dead ends: 35 [2020-12-09 06:17:02,159 INFO L226 Difference]: Without dead ends: 16 [2020-12-09 06:17:02,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 06:17:02,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-09 06:17:02,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-09 06:17:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-09 06:17:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-12-09 06:17:02,181 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2020-12-09 06:17:02,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:17:02,182 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-12-09 06:17:02,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 06:17:02,182 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-09 06:17:02,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 06:17:02,182 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:17:02,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:17:02,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 06:17:02,183 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:17:02,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:17:02,183 INFO L82 PathProgramCache]: Analyzing trace with hash -2131701560, now seen corresponding path program 1 times [2020-12-09 06:17:02,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:17:02,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592726473] [2020-12-09 06:17:02,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:17:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 06:17:02,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 06:17:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 06:17:02,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 06:17:02,254 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 06:17:02,255 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 06:17:02,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 06:17:02,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:17:02 BoogieIcfgContainer [2020-12-09 06:17:02,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 06:17:02,275 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 06:17:02,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 06:17:02,275 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 06:17:02,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:01" (3/4) ... [2020-12-09 06:17:02,278 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 06:17:02,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 06:17:02,280 INFO L168 Benchmark]: Toolchain (without parser) took 1066.59 ms. Allocated memory is still 98.6 MB. Free memory was 62.3 MB in the beginning and 47.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-12-09 06:17:02,280 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 98.6 MB. Free memory was 78.6 MB in the beginning and 78.5 MB in the end (delta: 78.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:17:02,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.84 ms. Allocated memory is still 98.6 MB. Free memory was 62.0 MB in the beginning and 74.7 MB in the end (delta: -12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 06:17:02,282 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.46 ms. Allocated memory is still 98.6 MB. Free memory was 74.7 MB in the beginning and 72.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:17:02,283 INFO L168 Benchmark]: Boogie Preprocessor took 20.21 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 71.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:17:02,283 INFO L168 Benchmark]: RCFGBuilder took 501.68 ms. Allocated memory is still 98.6 MB. Free memory was 71.5 MB in the beginning and 71.3 MB in the end (delta: 201.1 kB). Peak memory consumption was 35.9 MB. Max. memory is 16.1 GB. [2020-12-09 06:17:02,284 INFO L168 Benchmark]: TraceAbstraction took 315.35 ms. Allocated memory is still 98.6 MB. Free memory was 70.8 MB in the beginning and 48.1 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:17:02,284 INFO L168 Benchmark]: Witness Printer took 3.61 ms. Allocated memory is still 98.6 MB. Free memory was 48.1 MB in the beginning and 47.6 MB in the end (delta: 516.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:17:02,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 98.6 MB. Free memory was 78.6 MB in the beginning and 78.5 MB in the end (delta: 78.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 192.84 ms. Allocated memory is still 98.6 MB. Free memory was 62.0 MB in the beginning and 74.7 MB in the end (delta: -12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.46 ms. Allocated memory is still 98.6 MB. Free memory was 74.7 MB in the beginning and 72.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.21 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 71.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 501.68 ms. Allocated memory is still 98.6 MB. Free memory was 71.5 MB in the beginning and 71.3 MB in the end (delta: 201.1 kB). Peak memory consumption was 35.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 315.35 ms. Allocated memory is still 98.6 MB. Free memory was 70.8 MB in the beginning and 48.1 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.61 ms. Allocated memory is still 98.6 MB. Free memory was 48.1 MB in the beginning and 47.6 MB in the end (delta: 516.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 82]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someUnaryDOUBLEoperation at line 77. Possible FailurePath: [L76] double x = 0.0; [L77] double y = -0.0; [L21] __uint32_t msw, lsw; [L24] ieee_double_shape_type ew_u; [L25] ew_u.value = (x) [L26] EXPR ew_u.parts.msw [L26] (msw) = ew_u.parts.msw [L27] EXPR ew_u.parts.lsw [L27] (lsw) = ew_u.parts.lsw [L30-L31] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L33-L34] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L36-L37] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L40-L41] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L44] return 0; [L48] COND TRUE __fpclassify_double(x) == 0 [L49] return y; [L78] double res = fmin_double(x, y); [L81] EXPR res == -0.0 && __signbit_double(res) == 1 [L81] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L82] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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 0.2.0-7b2dab5 [2020-12-09 06:17:03,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:17:03,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:17:03,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:17:03,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:17:03,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:17:03,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:17:03,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:17:03,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:17:03,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:17:03,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:17:03,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:17:03,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:17:03,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:17:03,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:17:03,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:17:03,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:17:03,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:17:03,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:17:03,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:17:03,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:17:03,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:17:03,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:17:03,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:17:03,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:17:03,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:17:03,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:17:03,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:17:03,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:17:03,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:17:03,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:17:03,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:17:03,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:17:03,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:17:03,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:17:03,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:17:03,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:17:03,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:17:03,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:17:03,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:17:03,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:17:03,990 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 06:17:04,014 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:17:04,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:17:04,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:17:04,015 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:17:04,016 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:17:04,016 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:17:04,016 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:17:04,016 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:17:04,016 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:17:04,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:17:04,017 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:17:04,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:17:04,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:17:04,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:17:04,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:17:04,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:17:04,018 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:17:04,018 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 06:17:04,018 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 06:17:04,018 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:17:04,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:17:04,018 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:17:04,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:17:04,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:17:04,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 06:17:04,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:17:04,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:17:04,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:17:04,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:17:04,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:17:04,025 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 06:17:04,025 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 06:17:04,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:17:04,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:17:04,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:17:04,026 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_8b58c2b9-874d-41fc-a682-e4dfda2384af/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f0e84dafea36c954c87753335c0002922188c68 [2020-12-09 06:17:04,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:17:04,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:17:04,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:17:04,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:17:04,299 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:17:04,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2020-12-09 06:17:04,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/data/3544f87b5/72ab2bfb2fc9431fb0f549787cb77a1f/FLAG9852f2759 [2020-12-09 06:17:04,704 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:17:04,704 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2020-12-09 06:17:04,709 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/data/3544f87b5/72ab2bfb2fc9431fb0f549787cb77a1f/FLAG9852f2759 [2020-12-09 06:17:04,719 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/data/3544f87b5/72ab2bfb2fc9431fb0f549787cb77a1f [2020-12-09 06:17:04,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:17:04,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:17:04,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:17:04,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:17:04,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:17:04,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:17:04" (1/1) ... [2020-12-09 06:17:04,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ada123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:04, skipping insertion in model container [2020-12-09 06:17:04,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:17:04" (1/1) ... [2020-12-09 06:17:04,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:17:04,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:17:04,853 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c[1957,1970] [2020-12-09 06:17:04,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:17:04,864 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:17:04,882 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c[1957,1970] [2020-12-09 06:17:04,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:17:04,915 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:17:04,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:04 WrapperNode [2020-12-09 06:17:04,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:17:04,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:17:04,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:17:04,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:17:04,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:04" (1/1) ... [2020-12-09 06:17:04,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:04" (1/1) ... [2020-12-09 06:17:04,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:17:04,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:17:04,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:17:04,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:17:04,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:04" (1/1) ... [2020-12-09 06:17:04,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:04" (1/1) ... [2020-12-09 06:17:04,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:04" (1/1) ... [2020-12-09 06:17:04,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:04" (1/1) ... [2020-12-09 06:17:04,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:04" (1/1) ... [2020-12-09 06:17:04,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:04" (1/1) ... [2020-12-09 06:17:04,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:04" (1/1) ... [2020-12-09 06:17:04,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:17:04,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:17:04,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:17:04,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:17:04,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/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 [2020-12-09 06:17:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-09 06:17:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 06:17:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 06:17:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 06:17:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:17:05,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:17:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 06:17:05,310 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:17:05,310 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-09 06:17:05,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:05 BoogieIcfgContainer [2020-12-09 06:17:05,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:17:05,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:17:05,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:17:05,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:17:05,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:17:04" (1/3) ... [2020-12-09 06:17:05,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525d4400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:17:05, skipping insertion in model container [2020-12-09 06:17:05,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:04" (2/3) ... [2020-12-09 06:17:05,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525d4400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:17:05, skipping insertion in model container [2020-12-09 06:17:05,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:05" (3/3) ... [2020-12-09 06:17:05,316 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2020-12-09 06:17:05,326 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:17:05,328 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 06:17:05,336 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 06:17:05,352 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:17:05,352 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 06:17:05,352 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:17:05,352 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:17:05,353 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:17:05,353 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:17:05,353 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:17:05,353 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:17:05,362 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-12-09 06:17:05,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 06:17:05,366 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:17:05,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:17:05,366 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:17:05,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:17:05,370 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2020-12-09 06:17:05,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:17:05,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757821304] [2020-12-09 06:17:05,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/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 [2020-12-09 06:17:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:17:05,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 06:17:05,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:17:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:17:05,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:17:05,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757821304] [2020-12-09 06:17:05,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:17:05,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:17:05,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958424960] [2020-12-09 06:17:05,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 06:17:05,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:17:05,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 06:17:05,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 06:17:05,509 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2020-12-09 06:17:05,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:17:05,523 INFO L93 Difference]: Finished difference Result 62 states and 98 transitions. [2020-12-09 06:17:05,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 06:17:05,524 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-09 06:17:05,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:17:05,530 INFO L225 Difference]: With dead ends: 62 [2020-12-09 06:17:05,530 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 06:17:05,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 06:17:05,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 06:17:05,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-09 06:17:05,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 06:17:05,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-12-09 06:17:05,556 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2020-12-09 06:17:05,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:17:05,556 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-12-09 06:17:05,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 06:17:05,556 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-12-09 06:17:05,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 06:17:05,557 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:17:05,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:17:05,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 06:17:05,759 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:17:05,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:17:05,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2020-12-09 06:17:05,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:17:05,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273437596] [2020-12-09 06:17:05,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/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 [2020-12-09 06:17:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:17:05,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:17:05,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:17:05,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:17:05,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:17:05,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273437596] [2020-12-09 06:17:05,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:17:05,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 06:17:05,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434841085] [2020-12-09 06:17:05,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:17:05,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:17:05,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:17:05,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:17:05,984 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 4 states. [2020-12-09 06:17:06,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:17:06,035 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2020-12-09 06:17:06,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:17:06,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-09 06:17:06,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:17:06,037 INFO L225 Difference]: With dead ends: 53 [2020-12-09 06:17:06,037 INFO L226 Difference]: Without dead ends: 44 [2020-12-09 06:17:06,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:17:06,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-09 06:17:06,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2020-12-09 06:17:06,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-09 06:17:06,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-12-09 06:17:06,044 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2020-12-09 06:17:06,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:17:06,044 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-12-09 06:17:06,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:17:06,045 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-12-09 06:17:06,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 06:17:06,045 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:17:06,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:17:06,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 06:17:06,248 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:17:06,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:17:06,250 INFO L82 PathProgramCache]: Analyzing trace with hash 502201410, now seen corresponding path program 1 times [2020-12-09 06:17:06,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:17:06,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341605143] [2020-12-09 06:17:06,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/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 [2020-12-09 06:17:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:17:06,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 06:17:06,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:17:06,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:17:06,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:17:06,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341605143] [2020-12-09 06:17:06,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:17:06,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 06:17:06,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890518014] [2020-12-09 06:17:06,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:17:06,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:17:06,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:17:06,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:17:06,474 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2020-12-09 06:17:06,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:17:06,544 INFO L93 Difference]: Finished difference Result 61 states and 79 transitions. [2020-12-09 06:17:06,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:17:06,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-09 06:17:06,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:17:06,546 INFO L225 Difference]: With dead ends: 61 [2020-12-09 06:17:06,546 INFO L226 Difference]: Without dead ends: 39 [2020-12-09 06:17:06,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:17:06,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-09 06:17:06,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 30. [2020-12-09 06:17:06,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-09 06:17:06,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-12-09 06:17:06,551 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 12 [2020-12-09 06:17:06,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:17:06,552 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-12-09 06:17:06,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:17:06,552 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2020-12-09 06:17:06,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 06:17:06,553 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:17:06,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:17:06,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 06:17:06,755 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:17:06,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:17:06,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1951233721, now seen corresponding path program 1 times [2020-12-09 06:17:06,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:17:06,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957188420] [2020-12-09 06:17:06,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/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 [2020-12-09 06:17:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:17:06,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:17:06,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:17:06,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:17:06,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:17:06,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957188420] [2020-12-09 06:17:06,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:17:06,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 06:17:06,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783423917] [2020-12-09 06:17:06,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:17:06,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:17:06,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:17:06,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:17:06,898 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 4 states. [2020-12-09 06:17:06,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:17:06,929 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2020-12-09 06:17:06,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:17:06,929 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-09 06:17:06,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:17:06,930 INFO L225 Difference]: With dead ends: 52 [2020-12-09 06:17:06,930 INFO L226 Difference]: Without dead ends: 43 [2020-12-09 06:17:06,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:17:06,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-09 06:17:06,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2020-12-09 06:17:06,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-09 06:17:06,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2020-12-09 06:17:06,934 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 13 [2020-12-09 06:17:06,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:17:06,934 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2020-12-09 06:17:06,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:17:06,934 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2020-12-09 06:17:06,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 06:17:06,935 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:17:06,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:17:07,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 06:17:07,137 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:17:07,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:17:07,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1012446717, now seen corresponding path program 1 times [2020-12-09 06:17:07,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:17:07,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740079117] [2020-12-09 06:17:07,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/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 [2020-12-09 06:17:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:17:07,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:17:07,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:17:07,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:17:07,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:17:07,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740079117] [2020-12-09 06:17:07,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:17:07,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 06:17:07,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792493707] [2020-12-09 06:17:07,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:17:07,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:17:07,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:17:07,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:17:07,283 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 4 states. [2020-12-09 06:17:07,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:17:07,320 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2020-12-09 06:17:07,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:17:07,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-09 06:17:07,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:17:07,322 INFO L225 Difference]: With dead ends: 52 [2020-12-09 06:17:07,322 INFO L226 Difference]: Without dead ends: 43 [2020-12-09 06:17:07,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:17:07,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-09 06:17:07,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 30. [2020-12-09 06:17:07,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-09 06:17:07,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-12-09 06:17:07,327 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 16 [2020-12-09 06:17:07,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:17:07,327 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-12-09 06:17:07,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:17:07,327 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-12-09 06:17:07,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 06:17:07,328 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:17:07,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:17:07,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 06:17:07,529 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:17:07,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:17:07,531 INFO L82 PathProgramCache]: Analyzing trace with hash 874935118, now seen corresponding path program 1 times [2020-12-09 06:17:07,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:17:07,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94392309] [2020-12-09 06:17:07,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/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 [2020-12-09 06:17:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:17:07,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 06:17:07,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:17:07,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:17:07,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:17:07,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94392309] [2020-12-09 06:17:07,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:17:07,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 06:17:07,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622427813] [2020-12-09 06:17:07,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 06:17:07,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:17:07,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 06:17:07,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:17:07,679 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-12-09 06:17:07,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:17:07,745 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2020-12-09 06:17:07,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 06:17:07,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-09 06:17:07,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:17:07,747 INFO L225 Difference]: With dead ends: 43 [2020-12-09 06:17:07,747 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 06:17:07,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 06:17:07,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 06:17:07,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-09 06:17:07,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 06:17:07,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-12-09 06:17:07,750 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 17 [2020-12-09 06:17:07,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:17:07,750 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-12-09 06:17:07,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 06:17:07,750 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-12-09 06:17:07,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 06:17:07,751 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:17:07,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:17:07,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 06:17:07,952 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:17:07,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:17:07,953 INFO L82 PathProgramCache]: Analyzing trace with hash -414082333, now seen corresponding path program 1 times [2020-12-09 06:17:07,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:17:07,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182159629] [2020-12-09 06:17:07,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/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 [2020-12-09 06:17:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:17:08,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 06:17:08,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:17:08,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:17:08,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:17:08,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182159629] [2020-12-09 06:17:08,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:17:08,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 06:17:08,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661271734] [2020-12-09 06:17:08,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:17:08,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:17:08,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:17:08,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:17:08,085 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2020-12-09 06:17:08,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:17:08,095 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2020-12-09 06:17:08,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:17:08,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-09 06:17:08,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:17:08,096 INFO L225 Difference]: With dead ends: 39 [2020-12-09 06:17:08,096 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 06:17:08,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:17:08,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 06:17:08,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-09 06:17:08,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 06:17:08,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2020-12-09 06:17:08,100 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 18 [2020-12-09 06:17:08,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:17:08,100 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2020-12-09 06:17:08,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:17:08,100 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2020-12-09 06:17:08,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 06:17:08,100 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:17:08,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:17:08,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 06:17:08,302 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:17:08,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:17:08,303 INFO L82 PathProgramCache]: Analyzing trace with hash -356824031, now seen corresponding path program 1 times [2020-12-09 06:17:08,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:17:08,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176353498] [2020-12-09 06:17:08,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/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 [2020-12-09 06:17:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:17:08,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 06:17:08,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:17:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:17:08,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:17:08,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176353498] [2020-12-09 06:17:08,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:17:08,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 06:17:08,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551516853] [2020-12-09 06:17:08,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 06:17:08,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:17:08,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 06:17:08,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 06:17:08,469 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 6 states. [2020-12-09 06:17:08,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:17:08,534 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2020-12-09 06:17:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 06:17:08,534 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-09 06:17:08,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:17:08,534 INFO L225 Difference]: With dead ends: 41 [2020-12-09 06:17:08,535 INFO L226 Difference]: Without dead ends: 38 [2020-12-09 06:17:08,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-09 06:17:08,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-09 06:17:08,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31. [2020-12-09 06:17:08,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-09 06:17:08,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-12-09 06:17:08,538 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 18 [2020-12-09 06:17:08,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:17:08,539 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-12-09 06:17:08,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 06:17:08,539 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-12-09 06:17:08,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 06:17:08,539 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:17:08,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:17:08,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-12-09 06:17:08,741 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:17:08,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:17:08,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1049593954, now seen corresponding path program 1 times [2020-12-09 06:17:08,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:17:08,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372191418] [2020-12-09 06:17:08,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-12-09 06:17:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:17:08,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:17:08,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:17:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:17:08,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:17:08,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372191418] [2020-12-09 06:17:08,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:17:08,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 06:17:08,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384720872] [2020-12-09 06:17:08,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:17:08,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:17:08,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:17:08,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:17:08,839 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 4 states. [2020-12-09 06:17:08,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:17:08,869 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-12-09 06:17:08,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:17:08,869 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-12-09 06:17:08,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:17:08,870 INFO L225 Difference]: With dead ends: 51 [2020-12-09 06:17:08,870 INFO L226 Difference]: Without dead ends: 42 [2020-12-09 06:17:08,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:17:08,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-09 06:17:08,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 27. [2020-12-09 06:17:08,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-09 06:17:08,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-12-09 06:17:08,874 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 18 [2020-12-09 06:17:08,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:17:08,874 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-12-09 06:17:08,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:17:08,874 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-12-09 06:17:08,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 06:17:08,875 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:17:08,875 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] [2020-12-09 06:17:09,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-12-09 06:17:09,076 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:17:09,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:17:09,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1524231306, now seen corresponding path program 1 times [2020-12-09 06:17:09,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:17:09,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812279099] [2020-12-09 06:17:09,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-12-09 06:17:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:17:09,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 06:17:09,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:17:09,312 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:17:09,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:17:09,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:17:09,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812279099] [2020-12-09 06:17:09,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:17:09,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-09 06:17:09,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372045550] [2020-12-09 06:17:09,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 06:17:09,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:17:09,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 06:17:09,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-12-09 06:17:09,343 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2020-12-09 06:17:09,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:17:09,497 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-12-09 06:17:09,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 06:17:09,497 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-12-09 06:17:09,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:17:09,497 INFO L225 Difference]: With dead ends: 27 [2020-12-09 06:17:09,497 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 06:17:09,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-12-09 06:17:09,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 06:17:09,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 06:17:09,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 06:17:09,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 06:17:09,498 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-12-09 06:17:09,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:17:09,498 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 06:17:09,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 06:17:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 06:17:09,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 06:17:09,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-12-09 06:17:09,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 06:17:10,018 INFO L258 CegarLoopResult]: At program point L44(lines 20 45) the Hoare annotation is: (and (= ULTIMATE.start_fmin_double_~y (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (let ((.cse0 (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|)))))) (.cse1 (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x))) (or (and (= (_ bv3 32) |ULTIMATE.start___fpclassify_double_#res|) .cse0 .cse1) (and (= (_ bv2 32) |ULTIMATE.start___fpclassify_double_#res|) .cse0 .cse1)))) [2020-12-09 06:17:10,018 INFO L258 CegarLoopResult]: At program point L44-1(lines 20 45) the Hoare annotation is: (let ((.cse4 (fp.neg (_ +zero 11 53)))) (let ((.cse0 (= ULTIMATE.start_fmin_double_~y .cse4)) (.cse1 (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53))) (.cse2 (= ULTIMATE.start___fpclassify_double_~x .cse4)) (.cse3 (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)))))) (or (and .cse0 (= (_ bv2 32) |ULTIMATE.start___fpclassify_double_#res|) .cse1 .cse2 .cse3) (and (= (_ bv3 32) |ULTIMATE.start___fpclassify_double_#res|) .cse0 .cse1 .cse2 .cse3)))) [2020-12-09 06:17:10,018 INFO L262 CegarLoopResult]: For program point L36(lines 36 44) no Hoare annotation was computed. [2020-12-09 06:17:10,018 INFO L262 CegarLoopResult]: For program point L36-1(lines 36 44) no Hoare annotation was computed. [2020-12-09 06:17:10,018 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 06:17:10,018 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 06:17:10,018 INFO L265 CegarLoopResult]: At program point L86(lines 68 87) the Hoare annotation is: true [2020-12-09 06:17:10,019 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-09 06:17:10,019 INFO L262 CegarLoopResult]: For program point L53-2(line 53) no Hoare annotation was computed. [2020-12-09 06:17:10,019 INFO L258 CegarLoopResult]: At program point L53-3(lines 47 54) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= |ULTIMATE.start_fmin_double_#res| .cse0) (= ULTIMATE.start_fmin_double_~y .cse0) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)))))) [2020-12-09 06:17:10,019 INFO L262 CegarLoopResult]: For program point L23-1(lines 23 28) no Hoare annotation was computed. [2020-12-09 06:17:10,019 INFO L258 CegarLoopResult]: At program point L23-2(lines 23 28) the Hoare annotation is: (and (= ULTIMATE.start_fmin_double_~y (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x)) [2020-12-09 06:17:10,019 INFO L262 CegarLoopResult]: For program point L23-3(lines 20 45) no Hoare annotation was computed. [2020-12-09 06:17:10,019 INFO L262 CegarLoopResult]: For program point L23-5(lines 23 28) no Hoare annotation was computed. [2020-12-09 06:17:10,019 INFO L258 CegarLoopResult]: At program point L23-6(lines 23 28) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ULTIMATE.start_fmin_double_~y .cse0) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0))) [2020-12-09 06:17:10,019 INFO L262 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-12-09 06:17:10,019 INFO L262 CegarLoopResult]: For program point L48(lines 48 49) no Hoare annotation was computed. [2020-12-09 06:17:10,019 INFO L262 CegarLoopResult]: For program point L23-7(lines 20 45) no Hoare annotation was computed. [2020-12-09 06:17:10,019 INFO L262 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-12-09 06:17:10,019 INFO L262 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-12-09 06:17:10,019 INFO L262 CegarLoopResult]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2020-12-09 06:17:10,019 INFO L258 CegarLoopResult]: At program point L65(lines 56 66) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= .cse0 ULTIMATE.start_main_~res~0) (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (and (= (fp.neg (_ +zero 11 53)) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|) ULTIMATE.start___signbit_double_~msw~1))) (= |ULTIMATE.start_fmin_double_#res| .cse0) (= ULTIMATE.start_fmin_double_~y .cse0) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)))) (= ULTIMATE.start___signbit_double_~x .cse0) |ULTIMATE.start_main_#t~short15| (= (bvadd |ULTIMATE.start___signbit_double_#res| (_ bv4294967295 32)) (_ bv0 32)))) [2020-12-09 06:17:10,019 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 06:17:10,019 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2020-12-09 06:17:10,020 INFO L262 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-12-09 06:17:10,020 INFO L262 CegarLoopResult]: For program point L33(lines 33 44) no Hoare annotation was computed. [2020-12-09 06:17:10,020 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 06:17:10,020 INFO L262 CegarLoopResult]: For program point L33-1(lines 33 44) no Hoare annotation was computed. [2020-12-09 06:17:10,020 INFO L262 CegarLoopResult]: For program point L50(lines 50 51) no Hoare annotation was computed. [2020-12-09 06:17:10,020 INFO L262 CegarLoopResult]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2020-12-09 06:17:10,020 INFO L258 CegarLoopResult]: At program point L59-2(lines 59 63) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= .cse0 ULTIMATE.start_main_~res~0) (= |ULTIMATE.start_fmin_double_#res| .cse0) (= ULTIMATE.start_fmin_double_~y .cse0) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)))) (= ULTIMATE.start___signbit_double_~x .cse0) |ULTIMATE.start_main_#t~short15|)) [2020-12-09 06:17:10,020 INFO L262 CegarLoopResult]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2020-12-09 06:17:10,029 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,029 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,029 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,029 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,029 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,030 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,030 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,030 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,031 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,032 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,032 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,032 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,032 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,032 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,032 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,032 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,034 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,034 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,034 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,034 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,034 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,034 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,034 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,034 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,035 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,035 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,035 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,035 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,035 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,035 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,035 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,036 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,037 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,037 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,037 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,037 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,037 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,038 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,038 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,038 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,038 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,039 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,039 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,039 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,039 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,039 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,039 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,039 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,040 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,040 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,040 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,040 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,041 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,041 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,041 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,041 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,042 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,042 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,042 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,042 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,043 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,043 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,043 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,043 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:17:10 BoogieIcfgContainer [2020-12-09 06:17:10,045 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 06:17:10,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 06:17:10,045 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 06:17:10,046 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 06:17:10,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:05" (3/4) ... [2020-12-09 06:17:10,049 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 06:17:10,058 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-09 06:17:10,058 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 06:17:10,059 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 06:17:10,059 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 06:17:10,077 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && (((3bv32 == \result && (\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) || ((2bv32 == \result && (\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)) [2020-12-09 06:17:10,077 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_8[63:32]) [2020-12-09 06:17:10,078 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_8[63:32])) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && aux-res == -0.0 && __signbit_double(res) == 1-aux [2020-12-09 06:17:10,078 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && 2bv32 == \result) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_8[63:32])) || ((((3bv32 == \result && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_8[63:32])) [2020-12-09 06:17:10,078 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && (\exists v_skolemized_q#valueAsBitvector_9 : bv64 :: ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) && v_skolemized_q#valueAsBitvector_9[63:32] == msw)) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_8[63:32])) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~bvadd64(\result, 4294967295bv32) == 0bv32 [2020-12-09 06:17:10,103 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8b58c2b9-874d-41fc-a682-e4dfda2384af/bin/utaipan/witness.graphml [2020-12-09 06:17:10,103 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 06:17:10,104 INFO L168 Benchmark]: Toolchain (without parser) took 5381.22 ms. Allocated memory was 56.6 MB in the beginning and 92.3 MB in the end (delta: 35.7 MB). Free memory was 35.8 MB in the beginning and 43.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2020-12-09 06:17:10,105 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 56.6 MB. Free memory was 39.4 MB in the beginning and 39.3 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:17:10,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.10 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 35.7 MB in the beginning and 59.0 MB in the end (delta: -23.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 06:17:10,105 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.25 ms. Allocated memory is still 75.5 MB. Free memory was 59.0 MB in the beginning and 57.0 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:17:10,105 INFO L168 Benchmark]: Boogie Preprocessor took 24.65 ms. Allocated memory is still 75.5 MB. Free memory was 57.0 MB in the beginning and 55.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:17:10,106 INFO L168 Benchmark]: RCFGBuilder took 321.14 ms. Allocated memory is still 75.5 MB. Free memory was 55.4 MB in the beginning and 52.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:17:10,106 INFO L168 Benchmark]: TraceAbstraction took 4732.75 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 52.3 MB in the beginning and 47.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2020-12-09 06:17:10,106 INFO L168 Benchmark]: Witness Printer took 57.69 ms. Allocated memory is still 92.3 MB. Free memory was 47.1 MB in the beginning and 43.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 06:17:10,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 56.6 MB. Free memory was 39.4 MB in the beginning and 39.3 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 199.10 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 35.7 MB in the beginning and 59.0 MB in the end (delta: -23.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.25 ms. Allocated memory is still 75.5 MB. Free memory was 59.0 MB in the beginning and 57.0 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.65 ms. Allocated memory is still 75.5 MB. Free memory was 57.0 MB in the beginning and 55.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 321.14 ms. Allocated memory is still 75.5 MB. Free memory was 55.4 MB in the beginning and 52.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4732.75 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 52.3 MB in the beginning and 47.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. * Witness Printer took 57.69 ms. Allocated memory is still 92.3 MB. Free memory was 47.1 MB in the beginning and 43.4 MB in the end (delta: 3.8 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_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 20]: Loop Invariant [2020-12-09 06:17:10,114 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,114 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,114 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,114 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,114 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,114 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,114 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,114 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,115 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,115 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,115 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,115 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,115 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,115 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,115 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,115 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: ((((y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && 2bv32 == \result) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_8[63:32])) || ((((3bv32 == \result && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_8[63:32])) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant [2020-12-09 06:17:10,116 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,116 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,116 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,116 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,116 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,116 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,116 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,116 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,117 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,117 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,117 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,117 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 06:17:10,117 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,117 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,117 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,117 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: ((((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && (\exists v_skolemized_q#valueAsBitvector_9 : bv64 :: ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) && v_skolemized_q#valueAsBitvector_9[63:32] == msw)) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_8[63:32])) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~bvadd64(\result, 4294967295bv32) == 0bv32 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 20]: Loop Invariant [2020-12-09 06:17:10,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,118 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-12-09 06:17:10,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && (((3bv32 == \result && (\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) || ((2bv32 == \result && (\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)) - InvariantResult [Line: 47]: Loop Invariant [2020-12-09 06:17:10,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: (((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_8[63:32]) - InvariantResult [Line: 59]: Loop Invariant [2020-12-09 06:17:10,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2020-12-09 06:17:10,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: ((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_8[63:32])) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && aux-res == -0.0 && __signbit_double(res) == 1-aux - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 344 SDtfs, 238 SDslu, 501 SDs, 0 SdLazy, 174 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 10 MinimizatonAttempts, 72 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 16 NumberOfFragments, 275 HoareAnnotationTreeSize, 8 FomulaSimplifications, 367 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 57 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 145 ConstructedInterpolants, 8 QuantifiedInterpolants, 7618 SizeOfPredicates, 40 NumberOfNonLiveVariables, 619 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...