./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 ..................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 ........................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:39:01,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:39:01,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:39:01,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:39:01,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:39:01,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:39:01,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:39:01,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:39:01,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:39:01,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:39:01,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:39:01,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:39:01,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:39:01,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:39:01,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:39:01,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:39:01,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:39:01,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:39:01,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:39:01,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:39:01,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:39:01,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:39:01,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:39:01,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:39:01,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:39:01,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:39:01,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:39:01,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:39:01,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:39:01,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:39:01,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:39:01,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:39:01,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:39:01,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:39:01,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:39:01,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:39:01,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:39:01,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:39:01,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:39:01,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:39:01,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:39:01,638 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:39:01,696 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:39:01,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:39:01,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:39:01,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:39:01,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:39:01,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:39:01,701 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:39:01,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:39:01,701 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:39:01,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:39:01,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:39:01,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:39:01,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:39:01,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:39:01,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:39:01,703 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:39:01,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:39:01,704 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:39:01,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:39:01,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:39:01,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:39:01,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:39:01,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:39:01,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:39:01,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:39:01,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:39:01,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:39:01,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:39:01,707 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:39:01,707 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:39:01,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:39:01,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:39:01,708 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 [2021-10-28 08:39:02,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:39:02,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:39:02,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:39:02,095 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:39:02,097 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:39:02,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-10-28 08:39:02,196 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/data/fdf847e50/4f716d74bfe340ecabac851960129d9c/FLAGfdfe1f33d [2021-10-28 08:39:02,723 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:39:02,723 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-10-28 08:39:02,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/data/fdf847e50/4f716d74bfe340ecabac851960129d9c/FLAGfdfe1f33d [2021-10-28 08:39:03,090 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/data/fdf847e50/4f716d74bfe340ecabac851960129d9c [2021-10-28 08:39:03,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:39:03,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:39:03,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:39:03,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:39:03,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:39:03,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:39:03" (1/1) ... [2021-10-28 08:39:03,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652070ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:03, skipping insertion in model container [2021-10-28 08:39:03,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:39:03" (1/1) ... [2021-10-28 08:39:03,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:39:03,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:39:03,320 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-10-28 08:39:03,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:39:03,353 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:39:03,367 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-10-28 08:39:03,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:39:03,394 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:39:03,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:03 WrapperNode [2021-10-28 08:39:03,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:39:03,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:39:03,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:39:03,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:39:03,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:03" (1/1) ... [2021-10-28 08:39:03,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:03" (1/1) ... [2021-10-28 08:39:03,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:39:03,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:39:03,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:39:03,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:39:03,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:03" (1/1) ... [2021-10-28 08:39:03,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:03" (1/1) ... [2021-10-28 08:39:03,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:03" (1/1) ... [2021-10-28 08:39:03,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:03" (1/1) ... [2021-10-28 08:39:03,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:03" (1/1) ... [2021-10-28 08:39:03,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:03" (1/1) ... [2021-10-28 08:39:03,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:03" (1/1) ... [2021-10-28 08:39:03,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:39:03,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:39:03,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:39:03,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:39:03,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:03" (1/1) ... [2021-10-28 08:39:03,487 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:39:03,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:03,519 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:03,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:39:03,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:39:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:39:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-28 08:39:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:39:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-28 08:39:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:39:03,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:39:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:39:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:39:03,891 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:39:03,891 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-28 08:39:03,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:39:03 BoogieIcfgContainer [2021-10-28 08:39:03,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:39:03,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:39:03,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:39:03,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:39:03,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:39:03" (1/3) ... [2021-10-28 08:39:03,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c40ffbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:39:03, skipping insertion in model container [2021-10-28 08:39:03,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:03" (2/3) ... [2021-10-28 08:39:03,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c40ffbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:39:03, skipping insertion in model container [2021-10-28 08:39:03,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:39:03" (3/3) ... [2021-10-28 08:39:03,903 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2021-10-28 08:39:03,909 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:39:03,910 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:39:03,963 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:39:03,972 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:39:03,972 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 08:39:03,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:03,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 08:39:03,994 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:03,995 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:03,995 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:39:04,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:04,002 INFO L85 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2021-10-28 08:39:04,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:04,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711902259] [2021-10-28 08:39:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:04,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:04,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:04,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:04,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711902259] [2021-10-28 08:39:04,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711902259] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:04,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:04,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:39:04,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039887559] [2021-10-28 08:39:04,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:39:04,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:04,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:39:04,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:39:04,228 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:04,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:04,246 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-10-28 08:39:04,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:39:04,248 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-28 08:39:04,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:04,273 INFO L225 Difference]: With dead ends: 25 [2021-10-28 08:39:04,274 INFO L226 Difference]: Without dead ends: 10 [2021-10-28 08:39:04,277 INFO L786 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 [2021-10-28 08:39:04,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-28 08:39:04,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-28 08:39:04,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:04,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-28 08:39:04,311 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2021-10-28 08:39:04,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:04,313 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-28 08:39:04,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:04,313 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-28 08:39:04,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 08:39:04,314 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:04,314 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:04,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:39:04,315 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:39:04,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:04,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times [2021-10-28 08:39:04,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:04,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82849332] [2021-10-28 08:39:04,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:04,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:04,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:04,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:04,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82849332] [2021-10-28 08:39:04,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82849332] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:04,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:04,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:39:04,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922566605] [2021-10-28 08:39:04,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:39:04,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:04,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:39:04,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:39:04,489 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:04,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:04,506 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-10-28 08:39:04,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:39:04,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-28 08:39:04,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:04,509 INFO L225 Difference]: With dead ends: 16 [2021-10-28 08:39:04,509 INFO L226 Difference]: Without dead ends: 11 [2021-10-28 08:39:04,510 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:39:04,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-28 08:39:04,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-28 08:39:04,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:04,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-28 08:39:04,514 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2021-10-28 08:39:04,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:04,515 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-28 08:39:04,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:04,515 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-28 08:39:04,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 08:39:04,516 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:04,516 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:04,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:39:04,518 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:39:04,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:04,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1873743609, now seen corresponding path program 1 times [2021-10-28 08:39:04,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:04,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129020914] [2021-10-28 08:39:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:04,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:04,630 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:04,693 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:04,694 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:39:04,695 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:39:04,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:39:04,700 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 08:39:04,706 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:39:04,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:39:04 BoogieIcfgContainer [2021-10-28 08:39:04,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:39:04,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:39:04,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:39:04,739 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:39:04,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:39:03" (3/4) ... [2021-10-28 08:39:04,743 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:39:04,743 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:39:04,745 INFO L168 Benchmark]: Toolchain (without parser) took 1649.38 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 43.5 MB in the beginning and 77.2 MB in the end (delta: -33.7 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:04,746 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory was 60.0 MB in the beginning and 59.9 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:39:04,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.96 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 43.3 MB in the beginning and 92.6 MB in the end (delta: -49.3 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:04,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.26 ms. Allocated memory is still 117.4 MB. Free memory was 92.6 MB in the beginning and 91.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:39:04,748 INFO L168 Benchmark]: Boogie Preprocessor took 33.46 ms. Allocated memory is still 117.4 MB. Free memory was 91.2 MB in the beginning and 89.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:04,749 INFO L168 Benchmark]: RCFGBuilder took 417.84 ms. Allocated memory is still 117.4 MB. Free memory was 89.8 MB in the beginning and 78.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:04,749 INFO L168 Benchmark]: TraceAbstraction took 842.88 ms. Allocated memory is still 117.4 MB. Free memory was 77.9 MB in the beginning and 77.7 MB in the end (delta: 179.1 kB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:39:04,750 INFO L168 Benchmark]: Witness Printer took 4.30 ms. Allocated memory is still 117.4 MB. Free memory is still 77.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:39:04,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory was 60.0 MB in the beginning and 59.9 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.96 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 43.3 MB in the beginning and 92.6 MB in the end (delta: -49.3 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.26 ms. Allocated memory is still 117.4 MB. Free memory was 92.6 MB in the beginning and 91.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.46 ms. Allocated memory is still 117.4 MB. Free memory was 91.2 MB in the beginning and 89.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 417.84 ms. Allocated memory is still 117.4 MB. Free memory was 89.8 MB in the beginning and 78.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 842.88 ms. Allocated memory is still 117.4 MB. Free memory was 77.9 MB in the beginning and 77.7 MB in the end (delta: 179.1 kB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.30 ms. Allocated memory is still 117.4 MB. Free memory is still 77.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 16]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryArithmeticDOUBLEoperation at line 36, overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of to_real at line 31. Possible FailurePath: [L46] double a,r; [L48] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L26] double xi, xsi, temp; [L27] signed int cond, exp; [L28] union double_int A_u, xi_u; [L29] A_u.d = A [L30] EXPR A_u.i [L30] exp = (signed int) ((A_u.i & 0x7FF0000000000000) >> 52) - 1023 [L31] xi_u.d = 1 [L32] xi_u.i = (((long long)(1023-exp)) << 52) [L33] EXPR xi_u.d [L33] xi = xi_u.d [L34] cond = 1 [L35] COND TRUE \read(cond) [L36] xsi = 2*xi-A*xi*xi [L37] temp = xsi-xi [L38] cond = ((temp > 1e-10) || (temp < -1e-10)) [L39] xi = xsi [L35] COND FALSE !(\read(cond)) [L41] return xi; [L41] return xi; [L41] return xi; [L51] r = inv(a) [L16] COND TRUE !(cond) [L16] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 7 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2021-10-28 08:39:04,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:39:07,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:39:07,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:39:07,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:39:07,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:39:07,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:39:07,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:39:07,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:39:07,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:39:07,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:39:07,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:39:07,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:39:07,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:39:07,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:39:07,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:39:07,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:39:07,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:39:07,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:39:07,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:39:07,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:39:07,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:39:07,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:39:07,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:39:07,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:39:07,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:39:07,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:39:07,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:39:07,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:39:07,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:39:07,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:39:07,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:39:07,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:39:07,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:39:07,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:39:07,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:39:07,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:39:07,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:39:07,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:39:07,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:39:07,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:39:07,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:39:07,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 08:39:07,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:39:07,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:39:07,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:39:07,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:39:07,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:39:07,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:39:07,518 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:39:07,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:39:07,518 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:39:07,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:39:07,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:39:07,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:39:07,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:39:07,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:39:07,521 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 08:39:07,521 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 08:39:07,521 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:39:07,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:39:07,522 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:39:07,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:39:07,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:39:07,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:39:07,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:39:07,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:39:07,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:39:07,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:39:07,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:39:07,524 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 08:39:07,524 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 08:39:07,524 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:39:07,524 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:39:07,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:39:07,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:39:07,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 08:39:07,526 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_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 [2021-10-28 08:39:07,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:39:07,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:39:07,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:39:07,978 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:39:07,978 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:39:07,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-10-28 08:39:08,061 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/data/a5e1be50b/753aea62b3d44b90bb70e9a0e9342202/FLAG09c0bba71 [2021-10-28 08:39:08,654 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:39:08,655 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-10-28 08:39:08,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/data/a5e1be50b/753aea62b3d44b90bb70e9a0e9342202/FLAG09c0bba71 [2021-10-28 08:39:08,988 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/data/a5e1be50b/753aea62b3d44b90bb70e9a0e9342202 [2021-10-28 08:39:08,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:39:08,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:39:08,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:39:08,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:39:08,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:39:08,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:39:08" (1/1) ... [2021-10-28 08:39:09,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aee77d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:09, skipping insertion in model container [2021-10-28 08:39:09,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:39:08" (1/1) ... [2021-10-28 08:39:09,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:39:09,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:39:09,165 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-10-28 08:39:09,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:39:09,230 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:39:09,243 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-10-28 08:39:09,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:39:09,294 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:39:09,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:09 WrapperNode [2021-10-28 08:39:09,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:39:09,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:39:09,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:39:09,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:39:09,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:09" (1/1) ... [2021-10-28 08:39:09,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:09" (1/1) ... [2021-10-28 08:39:09,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:39:09,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:39:09,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:39:09,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:39:09,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:09" (1/1) ... [2021-10-28 08:39:09,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:09" (1/1) ... [2021-10-28 08:39:09,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:09" (1/1) ... [2021-10-28 08:39:09,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:09" (1/1) ... [2021-10-28 08:39:09,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:09" (1/1) ... [2021-10-28 08:39:09,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:09" (1/1) ... [2021-10-28 08:39:09,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:09" (1/1) ... [2021-10-28 08:39:09,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:39:09,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:39:09,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:39:09,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:39:09,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:09" (1/1) ... [2021-10-28 08:39:09,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:39:09,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:09,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:09,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:39:09,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-28 08:39:09,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-28 08:39:09,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 08:39:09,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:39:09,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-10-28 08:39:09,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:39:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:39:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-10-28 08:39:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:39:12,003 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:39:12,003 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-28 08:39:12,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:39:12 BoogieIcfgContainer [2021-10-28 08:39:12,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:39:12,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:39:12,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:39:12,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:39:12,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:39:08" (1/3) ... [2021-10-28 08:39:12,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f001f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:39:12, skipping insertion in model container [2021-10-28 08:39:12,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:09" (2/3) ... [2021-10-28 08:39:12,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f001f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:39:12, skipping insertion in model container [2021-10-28 08:39:12,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:39:12" (3/3) ... [2021-10-28 08:39:12,015 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2021-10-28 08:39:12,021 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:39:12,022 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:39:12,074 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:39:12,080 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:39:12,081 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 08:39:12,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:12,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 08:39:12,101 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:12,101 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:12,102 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:39:12,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:12,112 INFO L85 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2021-10-28 08:39:12,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:39:12,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955512438] [2021-10-28 08:39:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:12,124 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:39:12,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:39:12,125 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:39:12,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 08:39:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:12,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 08:39:12,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:12,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:39:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:12,384 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:39:12,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955512438] [2021-10-28 08:39:12,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955512438] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:12,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:12,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 08:39:12,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102268894] [2021-10-28 08:39:12,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:39:12,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:39:12,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:39:12,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:39:12,407 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:12,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:12,431 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-10-28 08:39:12,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:39:12,433 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-28 08:39:12,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:12,443 INFO L225 Difference]: With dead ends: 25 [2021-10-28 08:39:12,443 INFO L226 Difference]: Without dead ends: 10 [2021-10-28 08:39:12,447 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:39:12,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-28 08:39:12,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-28 08:39:12,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:12,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-28 08:39:12,479 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2021-10-28 08:39:12,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:12,480 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-28 08:39:12,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:12,480 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-28 08:39:12,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 08:39:12,481 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:12,481 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:12,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:12,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:39:12,701 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:39:12,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:12,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times [2021-10-28 08:39:12,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:39:12,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348393478] [2021-10-28 08:39:12,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:12,704 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:39:12,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:39:12,708 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:39:12,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 08:39:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:12,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:39:12,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:12,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:12,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:39:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:12,998 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:39:12,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348393478] [2021-10-28 08:39:12,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348393478] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:12,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:12,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 08:39:13,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141421680] [2021-10-28 08:39:13,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:39:13,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 08:39:13,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:39:13,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:39:13,005 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:15,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:15,386 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-10-28 08:39:15,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:39:15,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-28 08:39:15,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:39:15,387 INFO L225 Difference]: With dead ends: 16 [2021-10-28 08:39:15,388 INFO L226 Difference]: Without dead ends: 11 [2021-10-28 08:39:15,389 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:39:15,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-28 08:39:15,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-28 08:39:15,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:15,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-28 08:39:15,393 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2021-10-28 08:39:15,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:39:15,394 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-28 08:39:15,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:15,395 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-28 08:39:15,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 08:39:15,396 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:39:15,397 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:15,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:15,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:39:15,605 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:39:15,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:15,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1873743609, now seen corresponding path program 1 times [2021-10-28 08:39:15,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 08:39:15,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987222902] [2021-10-28 08:39:15,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:15,607 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 08:39:15,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 08:39:15,608 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 08:39:15,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 08:39:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:16,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 08:39:16,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:17,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 340 treesize of output 322 [2021-10-28 08:39:17,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 450 treesize of output 438 [2021-10-28 08:39:30,966 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= (let ((.cse1 (let ((.cse2 (let ((.cse3 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse3) ((_ extract 31 0) .cse3))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) .cse1))) c_ULTIMATE.start_inv_~xi~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-28 08:39:33,006 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= (let ((.cse1 (let ((.cse2 (let ((.cse3 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse3) ((_ extract 31 0) .cse3))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) .cse1))) c_ULTIMATE.start_inv_~xi~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-28 08:39:58,334 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= |c_ULTIMATE.start_inv_#res| (let ((.cse1 (let ((.cse2 (let ((.cse3 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse3) ((_ extract 31 0) .cse3))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) .cse1))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-28 08:41:41,136 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (and (let ((.cse1 (let ((.cse2 (let ((.cse4 (let ((.cse5 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse5) ((_ extract 31 0) .cse5))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse2) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 .cse2) .cse2))))) (let ((.cse0 (fp.geq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (not .cse0)) (and (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0))) .cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))))) (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (fp.geq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 20.0))))) is different from false [2021-10-28 08:41:43,179 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (and (let ((.cse1 (let ((.cse2 (let ((.cse4 (let ((.cse5 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse5) ((_ extract 31 0) .cse5))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse2) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 .cse2) .cse2))))) (let ((.cse0 (fp.geq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (not .cse0)) (and (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0))) .cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))))) (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (fp.geq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 20.0))))) is different from true [2021-10-28 08:41:59,957 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (and (not (fp.geq (let ((.cse0 (let ((.cse2 (let ((.cse3 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse3) ((_ extract 31 0) .cse3))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse0) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse1 .cse0) .cse0))) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (fp.geq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 20.0))))) is different from false [2021-10-28 08:42:02,000 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (and (not (fp.geq (let ((.cse0 (let ((.cse2 (let ((.cse3 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse3) ((_ extract 31 0) .cse3))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse0) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse1 .cse0) .cse0))) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (fp.geq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 20.0))))) is different from true [2021-10-28 08:42:02,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-10-28 08:42:02,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 08:42:13,270 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_inv_~xi~0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_inv_~A c_ULTIMATE.start_inv_~xi~0) c_ULTIMATE.start_inv_~xi~0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from false [2021-10-28 08:42:15,371 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_inv_~xi~0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_inv_~A c_ULTIMATE.start_inv_~xi~0) c_ULTIMATE.start_inv_~xi~0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from true [2021-10-28 08:42:15,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2024 treesize of output 1916 [2021-10-28 08:42:15,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2660 treesize of output 2588 [2021-10-28 08:43:01,065 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (or (let ((.cse0 (let ((.cse1 (let ((.cse3 (let ((.cse4 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 .cse1) .cse1))))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))))) (not (= c_ULTIMATE.start_main_~a~0 .cse2))))) is different from false [2021-10-28 08:43:03,164 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)))) (or (let ((.cse0 (let ((.cse1 (let ((.cse3 (let ((.cse4 (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 .cse1) .cse1))))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))))) (not (= c_ULTIMATE.start_main_~a~0 .cse2))))) is different from true [2021-10-28 08:43:55,555 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-28 08:43:55,556 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 08:43:55,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987222902] [2021-10-28 08:43:55,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-28 08:43:55,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [773483736] [2021-10-28 08:43:55,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:55,558 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 08:43:55,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/cvc4 [2021-10-28 08:43:55,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-28 08:43:55,562 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 08:43:55,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-10-28 08:43:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:59,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 08:43:59,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-28 08:43:59,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010723428] [2021-10-28 08:43:59,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:59,445 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:59,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:59,447 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:59,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 08:44:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:06,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 08:44:06,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by |v_ULTIMATE.start_main_#t~nondet9_4| [2021-10-28 08:44:06,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:44:06,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 08:44:06,398 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 08:44:06,398 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 08:44:06,406 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:44:06,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:06,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:06,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:07,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_101a3fc3-36f9-4cee-b93d-d6cd291f959b/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 08:44:07,012 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 08:44:07,015 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:44:07,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:44:07 BoogieIcfgContainer [2021-10-28 08:44:07,036 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:44:07,037 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:44:07,037 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:44:07,037 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:44:07,038 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:39:12" (3/4) ... [2021-10-28 08:44:07,043 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:44:07,043 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:44:07,046 INFO L168 Benchmark]: Toolchain (without parser) took 298051.29 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 38.0 MB in the beginning and 34.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:44:07,047 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 58.7 MB. Free memory is still 39.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:44:07,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.39 ms. Allocated memory is still 58.7 MB. Free memory was 37.9 MB in the beginning and 39.7 MB in the end (delta: -1.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:44:07,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.07 ms. Allocated memory is still 58.7 MB. Free memory was 39.7 MB in the beginning and 38.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:44:07,057 INFO L168 Benchmark]: Boogie Preprocessor took 33.63 ms. Allocated memory is still 58.7 MB. Free memory was 38.0 MB in the beginning and 36.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:44:07,058 INFO L168 Benchmark]: RCFGBuilder took 2634.63 ms. Allocated memory is still 58.7 MB. Free memory was 36.5 MB in the beginning and 39.7 MB in the end (delta: -3.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:44:07,060 INFO L168 Benchmark]: TraceAbstraction took 295028.13 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 39.2 MB in the beginning and 34.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:44:07,061 INFO L168 Benchmark]: Witness Printer took 6.63 ms. Allocated memory is still 71.3 MB. Free memory was 34.6 MB in the beginning and 34.1 MB in the end (delta: 458.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:44:07,069 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 58.7 MB. Free memory is still 39.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 301.39 ms. Allocated memory is still 58.7 MB. Free memory was 37.9 MB in the beginning and 39.7 MB in the end (delta: -1.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.07 ms. Allocated memory is still 58.7 MB. Free memory was 39.7 MB in the beginning and 38.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.63 ms. Allocated memory is still 58.7 MB. Free memory was 38.0 MB in the beginning and 36.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2634.63 ms. Allocated memory is still 58.7 MB. Free memory was 36.5 MB in the beginning and 39.7 MB in the end (delta: -3.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 295028.13 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 39.2 MB in the beginning and 34.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * Witness Printer took 6.63 ms. Allocated memory is still 71.3 MB. Free memory was 34.6 MB in the beginning and 34.1 MB in the end (delta: 458.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 16]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L46] double a,r; [L48] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L26] double xi, xsi, temp; [L27] signed int cond, exp; [L28] union double_int A_u, xi_u; [L29] A_u.d = A [L30] EXPR A_u.i [L30] exp = (signed int) ((A_u.i & 0x7FF0000000000000) >> 52) - 1023 [L31] xi_u.d = 1 [L32] xi_u.i = (((long long)(1023-exp)) << 52) [L33] EXPR xi_u.d [L33] xi = xi_u.d [L34] cond = 1 [L35] COND TRUE \read(cond) [L36] xsi = 2*xi-A*xi*xi [L37] temp = xsi-xi [L38] cond = ((temp > 1e-10) || (temp < -1e-10)) [L39] xi = xsi [L35] COND FALSE !(\read(cond)) [L41] return xi; [L41] return xi; [L41] return xi; [L51] r = inv(a) [L16] COND TRUE !(cond) [L16] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 294.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 7 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 279.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 41 ConstructedInterpolants, 6 QuantifiedInterpolants, 3070 SizeOfPredicates, 18 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 0/1 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...