./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa --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 a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:16:22,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:16:22,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:16:22,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:16:22,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:16:22,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:16:22,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:16:22,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:16:22,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:16:22,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:16:22,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:16:22,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:16:22,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:16:22,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:16:22,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:16:22,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:16:22,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:16:22,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:16:22,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:16:22,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:16:22,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:16:22,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:16:22,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:16:22,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:16:22,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:16:22,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:16:22,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:16:22,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:16:22,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:16:22,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:16:22,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:16:22,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:16:22,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:16:22,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:16:22,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:16:22,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:16:22,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:16:22,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:16:22,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:16:22,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:16:22,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:16:22,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 17:16:22,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:16:22,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:16:22,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:16:22,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:16:22,549 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:16:22,549 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:16:22,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:16:22,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:16:22,550 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:16:22,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:16:22,550 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:16:22,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:16:22,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:16:22,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:16:22,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:16:22,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:16:22,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:16:22,551 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:16:22,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:16:22,552 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:16:22,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:16:22,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:16:22,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:16:22,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:16:22,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:16:22,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:16:22,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:16:22,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:16:22,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:16:22,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:16:22,553 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:16:22,553 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:16:22,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:16:22,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:16:22,553 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_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 [2021-12-06 17:16:22,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:16:22,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:16:22,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:16:22,776 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:16:22,777 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:16:22,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2021-12-06 17:16:22,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/data/18af2954d/0bea01e2c2fe4aafa21ce84eddfe166f/FLAG78d398b6f [2021-12-06 17:16:23,204 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:16:23,205 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2021-12-06 17:16:23,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/data/18af2954d/0bea01e2c2fe4aafa21ce84eddfe166f/FLAG78d398b6f [2021-12-06 17:16:23,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/data/18af2954d/0bea01e2c2fe4aafa21ce84eddfe166f [2021-12-06 17:16:23,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:16:23,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:16:23,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:16:23,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:16:23,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:16:23,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:16:23" (1/1) ... [2021-12-06 17:16:23,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db2d3f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:23, skipping insertion in model container [2021-12-06 17:16:23,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:16:23" (1/1) ... [2021-12-06 17:16:23,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:16:23,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:16:23,395 WARN L230 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_f16b8faa-c245-497a-8e03-7fcab842bfaf/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c[2909,2922] [2021-12-06 17:16:23,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:16:23,405 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:16:23,432 WARN L230 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_f16b8faa-c245-497a-8e03-7fcab842bfaf/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c[2909,2922] [2021-12-06 17:16:23,433 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:16:23,443 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:16:23,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:23 WrapperNode [2021-12-06 17:16:23,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:16:23,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:16:23,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:16:23,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:16:23,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:23" (1/1) ... [2021-12-06 17:16:23,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:23" (1/1) ... [2021-12-06 17:16:23,486 INFO L137 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 187 [2021-12-06 17:16:23,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:16:23,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:16:23,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:16:23,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:16:23,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:23" (1/1) ... [2021-12-06 17:16:23,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:23" (1/1) ... [2021-12-06 17:16:23,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:23" (1/1) ... [2021-12-06 17:16:23,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:23" (1/1) ... [2021-12-06 17:16:23,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:23" (1/1) ... [2021-12-06 17:16:23,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:23" (1/1) ... [2021-12-06 17:16:23,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:23" (1/1) ... [2021-12-06 17:16:23,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:16:23,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:16:23,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:16:23,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:16:23,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:23" (1/1) ... [2021-12-06 17:16:23,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:16:23,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:23,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:23,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:16:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:16:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 17:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 17:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-06 17:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-06 17:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:16:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 17:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-06 17:16:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 17:16:23,648 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:16:23,650 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:16:23,815 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:16:23,819 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:16:23,819 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-06 17:16:23,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:16:23 BoogieIcfgContainer [2021-12-06 17:16:23,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:16:23,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:16:23,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:16:23,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:16:23,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:16:23" (1/3) ... [2021-12-06 17:16:23,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212629c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:16:23, skipping insertion in model container [2021-12-06 17:16:23,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:23" (2/3) ... [2021-12-06 17:16:23,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212629c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:16:23, skipping insertion in model container [2021-12-06 17:16:23,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:16:23" (3/3) ... [2021-12-06 17:16:23,827 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130b.c [2021-12-06 17:16:23,830 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:16:23,831 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:16:23,865 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:16:23,870 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 [2021-12-06 17:16:23,870 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:16:23,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 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) [2021-12-06 17:16:23,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 17:16:23,888 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:23,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:23,889 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:23,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:23,893 INFO L85 PathProgramCache]: Analyzing trace with hash 461941989, now seen corresponding path program 1 times [2021-12-06 17:16:23,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:23,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535444561] [2021-12-06 17:16:23,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:23,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:23,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:23,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:16:23,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535444561] [2021-12-06 17:16:23,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535444561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:23,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:24,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:16:24,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489666753] [2021-12-06 17:16:24,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:24,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 17:16:24,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:16:24,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 17:16:24,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:16:24,027 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 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 5.5) internal successors, (11), 2 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) [2021-12-06 17:16:24,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:24,042 INFO L93 Difference]: Finished difference Result 93 states and 156 transitions. [2021-12-06 17:16:24,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:16:24,044 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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 11 [2021-12-06 17:16:24,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:24,053 INFO L225 Difference]: With dead ends: 93 [2021-12-06 17:16:24,053 INFO L226 Difference]: Without dead ends: 44 [2021-12-06 17:16:24,056 INFO L932 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 [2021-12-06 17:16:24,060 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:24,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:16:24,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-06 17:16:24,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-12-06 17:16:24,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 43 states have internal predecessors, (60), 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) [2021-12-06 17:16:24,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2021-12-06 17:16:24,088 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 11 [2021-12-06 17:16:24,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:24,088 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2021-12-06 17:16:24,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2021-12-06 17:16:24,088 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2021-12-06 17:16:24,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 17:16:24,089 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:24,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:24,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:16:24,089 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:24,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:24,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1049045826, now seen corresponding path program 1 times [2021-12-06 17:16:24,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:24,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986224384] [2021-12-06 17:16:24,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:24,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:24,138 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:16:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:24,191 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:16:24,191 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 17:16:24,193 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 17:16:24,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:16:24,198 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-06 17:16:24,201 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:16:24,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:16:24 BoogieIcfgContainer [2021-12-06 17:16:24,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:16:24,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:16:24,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:16:24,228 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:16:24,228 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:16:23" (3/4) ... [2021-12-06 17:16:24,230 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 17:16:24,231 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:16:24,231 INFO L158 Benchmark]: Toolchain (without parser) took 1004.69ms. Allocated memory is still 113.2MB. Free memory was 74.4MB in the beginning and 85.8MB in the end (delta: -11.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:16:24,231 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:16:24,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.76ms. Allocated memory is still 113.2MB. Free memory was 74.2MB in the beginning and 86.7MB in the end (delta: -12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 17:16:24,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.18ms. Allocated memory is still 113.2MB. Free memory was 86.3MB in the beginning and 84.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:16:24,233 INFO L158 Benchmark]: Boogie Preprocessor took 31.96ms. Allocated memory is still 113.2MB. Free memory was 84.2MB in the beginning and 82.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:16:24,233 INFO L158 Benchmark]: RCFGBuilder took 301.24ms. Allocated memory is still 113.2MB. Free memory was 82.5MB in the beginning and 67.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 17:16:24,234 INFO L158 Benchmark]: TraceAbstraction took 404.84ms. Allocated memory is still 113.2MB. Free memory was 67.4MB in the beginning and 86.4MB in the end (delta: -19.0MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2021-12-06 17:16:24,234 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 113.2MB. Free memory was 86.4MB in the beginning and 85.8MB in the end (delta: 603.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:16:24,236 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.76ms. Allocated memory is still 113.2MB. Free memory was 74.2MB in the beginning and 86.7MB in the end (delta: -12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.18ms. Allocated memory is still 113.2MB. Free memory was 86.3MB in the beginning and 84.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.96ms. Allocated memory is still 113.2MB. Free memory was 84.2MB in the beginning and 82.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 301.24ms. Allocated memory is still 113.2MB. Free memory was 82.5MB in the beginning and 67.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 404.84ms. Allocated memory is still 113.2MB. Free memory was 67.4MB in the beginning and 86.4MB in the end (delta: -19.0MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 113.2MB. Free memory was 86.4MB in the beginning and 85.8MB in the end (delta: 603.2kB). There was no memory consumed. Max. memory is 16.1GB. * 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: 137]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someUnaryFLOAToperation at line 128, overapproximation of bitwiseXor at line 33, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={4:0}] [L128] float x = -0.0f; [L129] float y = __VERIFIER_nondet_float(); [L131] COND TRUE (y < 0.0f || y > 0.0f) [L133] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=4294967296, \old(y)=4294967297, one_fmod=1, x=4294967296, y=4294967297, Zero_fmod={4:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=4294967296, \old(y)=4294967297, one_fmod=1, sx=-1, x=4294967296, y=4294967297, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=4294967296, \old(y)=4294967297, hx=2139095040, hy=0, one_fmod=1, sx=-1, x=4294967296, y=4294967297, Zero_fmod={4:0}] [L133] RET, EXPR fmod_float(x, y) [L133] float res = fmod_float(x, y); [L136] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_fmod=1, res=4294967298, res == -0.0f && __signbit_float(res) == 1=0, x=4294967296, y=4294967297, Zero_fmod={4:0}] [L136] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L137] reach_error() VAL [one_fmod=1, res=4294967298, x=4294967296, y=4294967297, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 65 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 17:16:24,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa --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 a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:16:25,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:16:25,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:16:25,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:16:25,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:16:25,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:16:25,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:16:25,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:16:25,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:16:25,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:16:25,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:16:25,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:16:25,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:16:25,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:16:25,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:16:25,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:16:25,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:16:25,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:16:25,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:16:26,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:16:26,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:16:26,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:16:26,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:16:26,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:16:26,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:16:26,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:16:26,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:16:26,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:16:26,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:16:26,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:16:26,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:16:26,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:16:26,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:16:26,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:16:26,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:16:26,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:16:26,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:16:26,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:16:26,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:16:26,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:16:26,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:16:26,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 17:16:26,046 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:16:26,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:16:26,046 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:16:26,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:16:26,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:16:26,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:16:26,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:16:26,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:16:26,048 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:16:26,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:16:26,049 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:16:26,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:16:26,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:16:26,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:16:26,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:16:26,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:16:26,050 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 17:16:26,050 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 17:16:26,051 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 17:16:26,051 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:16:26,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:16:26,051 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:16:26,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:16:26,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:16:26,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:16:26,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:16:26,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:16:26,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:16:26,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:16:26,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:16:26,053 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 17:16:26,053 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 17:16:26,054 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:16:26,054 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:16:26,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:16:26,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:16:26,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 17:16:26,054 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_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 [2021-12-06 17:16:26,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:16:26,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:16:26,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:16:26,315 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:16:26,316 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:16:26,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2021-12-06 17:16:26,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/data/54cdc8e15/4c6d7fccb31c42608b5effe00bb4253c/FLAG9dbc608b9 [2021-12-06 17:16:26,748 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:16:26,749 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2021-12-06 17:16:26,757 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/data/54cdc8e15/4c6d7fccb31c42608b5effe00bb4253c/FLAG9dbc608b9 [2021-12-06 17:16:26,770 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/data/54cdc8e15/4c6d7fccb31c42608b5effe00bb4253c [2021-12-06 17:16:26,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:16:26,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:16:26,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:16:26,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:16:26,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:16:26,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:16:26" (1/1) ... [2021-12-06 17:16:26,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b63e530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:26, skipping insertion in model container [2021-12-06 17:16:26,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:16:26" (1/1) ... [2021-12-06 17:16:26,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:16:26,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:16:26,931 WARN L230 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_f16b8faa-c245-497a-8e03-7fcab842bfaf/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c[2909,2922] [2021-12-06 17:16:26,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:16:26,942 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:16:26,968 WARN L230 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_f16b8faa-c245-497a-8e03-7fcab842bfaf/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c[2909,2922] [2021-12-06 17:16:26,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:16:26,981 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:16:26,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:26 WrapperNode [2021-12-06 17:16:26,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:16:26,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:16:26,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:16:26,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:16:26,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:26" (1/1) ... [2021-12-06 17:16:26,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:26" (1/1) ... [2021-12-06 17:16:27,015 INFO L137 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 187 [2021-12-06 17:16:27,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:16:27,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:16:27,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:16:27,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:16:27,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:26" (1/1) ... [2021-12-06 17:16:27,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:26" (1/1) ... [2021-12-06 17:16:27,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:26" (1/1) ... [2021-12-06 17:16:27,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:26" (1/1) ... [2021-12-06 17:16:27,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:26" (1/1) ... [2021-12-06 17:16:27,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:26" (1/1) ... [2021-12-06 17:16:27,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:26" (1/1) ... [2021-12-06 17:16:27,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:16:27,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:16:27,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:16:27,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:16:27,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:26" (1/1) ... [2021-12-06 17:16:27,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:16:27,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:27,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:27,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:16:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:16:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-12-06 17:16:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 17:16:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 17:16:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-06 17:16:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 17:16:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:16:27,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:16:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-06 17:16:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 17:16:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 17:16:27,159 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:16:27,161 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:16:29,110 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:16:29,115 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:16:29,115 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-06 17:16:29,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:16:29 BoogieIcfgContainer [2021-12-06 17:16:29,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:16:29,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:16:29,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:16:29,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:16:29,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:16:26" (1/3) ... [2021-12-06 17:16:29,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac61c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:16:29, skipping insertion in model container [2021-12-06 17:16:29,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:26" (2/3) ... [2021-12-06 17:16:29,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac61c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:16:29, skipping insertion in model container [2021-12-06 17:16:29,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:16:29" (3/3) ... [2021-12-06 17:16:29,122 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130b.c [2021-12-06 17:16:29,126 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:16:29,127 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:16:29,161 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:16:29,167 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 [2021-12-06 17:16:29,167 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:16:29,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 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) [2021-12-06 17:16:29,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 17:16:29,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:29,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:29,182 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:29,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:29,186 INFO L85 PathProgramCache]: Analyzing trace with hash 461941989, now seen corresponding path program 1 times [2021-12-06 17:16:29,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:16:29,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182680033] [2021-12-06 17:16:29,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:29,196 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:16:29,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:16:29,197 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:16:29,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 17:16:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:29,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 17:16:29,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:29,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:29,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:16:29,456 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:16:29,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182680033] [2021-12-06 17:16:29,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182680033] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:29,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:29,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:16:29,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361481621] [2021-12-06 17:16:29,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:29,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 17:16:29,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:16:29,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 17:16:29,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:16:29,483 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 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 5.5) internal successors, (11), 2 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) [2021-12-06 17:16:29,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:29,497 INFO L93 Difference]: Finished difference Result 93 states and 156 transitions. [2021-12-06 17:16:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:16:29,499 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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 11 [2021-12-06 17:16:29,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:29,505 INFO L225 Difference]: With dead ends: 93 [2021-12-06 17:16:29,505 INFO L226 Difference]: Without dead ends: 44 [2021-12-06 17:16:29,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:16:29,510 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:29,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:16:29,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-06 17:16:29,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-12-06 17:16:29,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 43 states have internal predecessors, (60), 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) [2021-12-06 17:16:29,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2021-12-06 17:16:29,535 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 11 [2021-12-06 17:16:29,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:29,536 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2021-12-06 17:16:29,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2021-12-06 17:16:29,536 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2021-12-06 17:16:29,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 17:16:29,536 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:29,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:29,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:16:29,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:16:29,739 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:29,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:29,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1049045826, now seen corresponding path program 1 times [2021-12-06 17:16:29,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:16:29,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503702341] [2021-12-06 17:16:29,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:29,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:16:29,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:16:29,747 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:16:29,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 17:16:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:30,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-06 17:16:30,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:30,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 17:16:30,273 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 30 treesize of output 14 [2021-12-06 17:16:30,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:30,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:16:30,476 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:16:30,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503702341] [2021-12-06 17:16:30,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503702341] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:30,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:30,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:16:30,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400009686] [2021-12-06 17:16:30,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:30,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:16:30,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:16:30,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:16:30,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:16:30,479 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-12-06 17:16:30,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:30,981 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2021-12-06 17:16:30,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:16:30,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2021-12-06 17:16:30,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:30,982 INFO L225 Difference]: With dead ends: 53 [2021-12-06 17:16:30,983 INFO L226 Difference]: Without dead ends: 44 [2021-12-06 17:16:30,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:16:30,984 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 5 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:30,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 240 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 55 Unchecked, 0.4s Time] [2021-12-06 17:16:30,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-06 17:16:30,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-12-06 17:16:30,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.372093023255814) internal successors, (59), 43 states have internal predecessors, (59), 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) [2021-12-06 17:16:30,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2021-12-06 17:16:30,989 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 59 transitions. Word has length 13 [2021-12-06 17:16:30,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:30,989 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 59 transitions. [2021-12-06 17:16:30,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-12-06 17:16:30,990 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2021-12-06 17:16:30,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-06 17:16:30,990 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:30,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:31,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-06 17:16:31,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:16:31,192 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:31,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:31,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1911951893, now seen corresponding path program 1 times [2021-12-06 17:16:31,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:16:31,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341192484] [2021-12-06 17:16:31,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:31,197 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:16:31,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:16:31,198 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:16:31,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 17:16:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:31,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 17:16:31,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:31,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:31,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:16:31,365 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:16:31,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341192484] [2021-12-06 17:16:31,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341192484] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:31,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:31,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:16:31,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179593592] [2021-12-06 17:16:31,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:31,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:16:31,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:16:31,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:16:31,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:16:31,371 INFO L87 Difference]: Start difference. First operand 44 states and 59 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-12-06 17:16:31,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:31,728 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2021-12-06 17:16:31,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 17:16:31,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2021-12-06 17:16:31,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:31,729 INFO L225 Difference]: With dead ends: 65 [2021-12-06 17:16:31,729 INFO L226 Difference]: Without dead ends: 62 [2021-12-06 17:16:31,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-06 17:16:31,731 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 140 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:31,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 169 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:16:31,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-12-06 17:16:31,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 46. [2021-12-06 17:16:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 45 states have internal predecessors, (61), 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) [2021-12-06 17:16:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2021-12-06 17:16:31,737 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 14 [2021-12-06 17:16:31,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:31,738 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2021-12-06 17:16:31,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-12-06 17:16:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2021-12-06 17:16:31,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 17:16:31,739 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:31,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:31,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-06 17:16:31,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:16:31,941 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:31,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:31,943 INFO L85 PathProgramCache]: Analyzing trace with hash 791016935, now seen corresponding path program 1 times [2021-12-06 17:16:31,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:16:31,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569454025] [2021-12-06 17:16:31,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:31,944 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:16:31,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:16:31,945 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:16:31,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 17:16:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:32,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 17:16:32,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:32,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:32,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:16:32,289 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:16:32,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569454025] [2021-12-06 17:16:32,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569454025] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:32,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:32,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:16:32,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415695170] [2021-12-06 17:16:32,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:32,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:16:32,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:16:32,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:16:32,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:16:32,291 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2021-12-06 17:16:32,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:32,830 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2021-12-06 17:16:32,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:16:32,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 15 [2021-12-06 17:16:32,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:32,831 INFO L225 Difference]: With dead ends: 55 [2021-12-06 17:16:32,832 INFO L226 Difference]: Without dead ends: 46 [2021-12-06 17:16:32,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:16:32,833 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 9 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:32,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 231 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 53 Unchecked, 0.4s Time] [2021-12-06 17:16:32,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-12-06 17:16:32,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-12-06 17:16:32,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 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) [2021-12-06 17:16:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2021-12-06 17:16:32,840 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 15 [2021-12-06 17:16:32,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:32,840 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2021-12-06 17:16:32,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2021-12-06 17:16:32,841 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2021-12-06 17:16:32,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-06 17:16:32,841 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:32,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:32,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 17:16:33,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:16:33,042 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:33,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:33,043 INFO L85 PathProgramCache]: Analyzing trace with hash -645654976, now seen corresponding path program 1 times [2021-12-06 17:16:33,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:16:33,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646439212] [2021-12-06 17:16:33,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:33,044 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:16:33,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:16:33,045 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:16:33,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 17:16:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:33,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 17:16:33,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:33,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:33,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:16:33,367 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:16:33,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646439212] [2021-12-06 17:16:33,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646439212] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:33,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:33,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 17:16:33,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625049681] [2021-12-06 17:16:33,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:33,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 17:16:33,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:16:33,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 17:16:33,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:16:33,369 INFO L87 Difference]: Start difference. First operand 46 states and 60 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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) [2021-12-06 17:16:34,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:34,091 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2021-12-06 17:16:34,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 17:16:34,092 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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 18 [2021-12-06 17:16:34,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:34,092 INFO L225 Difference]: With dead ends: 62 [2021-12-06 17:16:34,092 INFO L226 Difference]: Without dead ends: 53 [2021-12-06 17:16:34,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-12-06 17:16:34,094 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 141 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:34,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 366 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 17:16:34,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-12-06 17:16:34,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2021-12-06 17:16:34,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 43 states have internal predecessors, (57), 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) [2021-12-06 17:16:34,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2021-12-06 17:16:34,099 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 18 [2021-12-06 17:16:34,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:34,099 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2021-12-06 17:16:34,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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) [2021-12-06 17:16:34,099 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2021-12-06 17:16:34,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-06 17:16:34,100 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:34,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:34,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 17:16:34,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:16:34,302 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:34,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:34,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1896589553, now seen corresponding path program 1 times [2021-12-06 17:16:34,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:16:34,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083274413] [2021-12-06 17:16:34,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:34,305 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:16:34,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:16:34,306 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:16:34,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 17:16:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:34,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 17:16:34,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:34,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:34,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:16:34,573 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:16:34,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083274413] [2021-12-06 17:16:34,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083274413] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:34,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:34,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:16:34,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544495485] [2021-12-06 17:16:34,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:34,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:16:34,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:16:34,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:16:34,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:16:34,575 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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) [2021-12-06 17:16:35,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:35,142 INFO L93 Difference]: Finished difference Result 74 states and 98 transitions. [2021-12-06 17:16:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:16:35,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 24 [2021-12-06 17:16:35,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:35,143 INFO L225 Difference]: With dead ends: 74 [2021-12-06 17:16:35,143 INFO L226 Difference]: Without dead ends: 44 [2021-12-06 17:16:35,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:16:35,144 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 9 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:35,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 201 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 21 Unchecked, 0.5s Time] [2021-12-06 17:16:35,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-06 17:16:35,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-12-06 17:16:35,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 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) [2021-12-06 17:16:35,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2021-12-06 17:16:35,148 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 24 [2021-12-06 17:16:35,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:35,148 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-12-06 17:16:35,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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) [2021-12-06 17:16:35,148 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2021-12-06 17:16:35,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-06 17:16:35,149 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:35,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:35,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 17:16:35,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:16:35,351 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:35,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:35,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1844332961, now seen corresponding path program 1 times [2021-12-06 17:16:35,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:16:35,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929518213] [2021-12-06 17:16:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:35,355 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:16:35,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:16:35,357 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:16:35,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 17:16:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:35,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 17:16:35,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:35,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:35,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:16:35,734 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:16:35,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929518213] [2021-12-06 17:16:35,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929518213] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:35,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:35,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:16:35,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734294761] [2021-12-06 17:16:35,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:35,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:16:35,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:16:35,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:16:35,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:16:35,735 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2021-12-06 17:16:36,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:36,197 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2021-12-06 17:16:36,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 17:16:36,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 25 [2021-12-06 17:16:36,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:36,199 INFO L225 Difference]: With dead ends: 71 [2021-12-06 17:16:36,199 INFO L226 Difference]: Without dead ends: 44 [2021-12-06 17:16:36,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:16:36,200 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 11 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:36,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 230 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 34 Unchecked, 0.4s Time] [2021-12-06 17:16:36,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-06 17:16:36,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-12-06 17:16:36,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 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) [2021-12-06 17:16:36,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2021-12-06 17:16:36,204 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 25 [2021-12-06 17:16:36,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:36,204 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2021-12-06 17:16:36,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2021-12-06 17:16:36,204 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2021-12-06 17:16:36,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-06 17:16:36,205 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:36,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:36,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 17:16:36,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:16:36,407 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:36,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:36,408 INFO L85 PathProgramCache]: Analyzing trace with hash 101160342, now seen corresponding path program 1 times [2021-12-06 17:16:36,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:16:36,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292497054] [2021-12-06 17:16:36,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:36,410 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:16:36,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:16:36,413 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:16:36,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-06 17:16:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:36,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:16:36,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:36,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:36,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:16:36,625 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:16:36,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292497054] [2021-12-06 17:16:36,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292497054] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:36,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:36,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:16:36,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090278312] [2021-12-06 17:16:36,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:36,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:16:36,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:16:36,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:16:36,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:16:36,627 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-12-06 17:16:36,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:36,630 INFO L93 Difference]: Finished difference Result 72 states and 93 transitions. [2021-12-06 17:16:36,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:16:36,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2021-12-06 17:16:36,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:36,630 INFO L225 Difference]: With dead ends: 72 [2021-12-06 17:16:36,631 INFO L226 Difference]: Without dead ends: 45 [2021-12-06 17:16:36,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:16:36,632 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 2 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:36,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 132 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2021-12-06 17:16:36,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-06 17:16:36,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-12-06 17:16:36,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 44 states have internal predecessors, (56), 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) [2021-12-06 17:16:36,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2021-12-06 17:16:36,636 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 26 [2021-12-06 17:16:36,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:36,636 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2021-12-06 17:16:36,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-12-06 17:16:36,636 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2021-12-06 17:16:36,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 17:16:36,637 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:36,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:36,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-06 17:16:36,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:16:36,839 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:36,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:36,840 INFO L85 PathProgramCache]: Analyzing trace with hash 305949144, now seen corresponding path program 1 times [2021-12-06 17:16:36,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:16:36,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136893863] [2021-12-06 17:16:36,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:36,842 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:16:36,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:16:36,845 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:16:36,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-06 17:16:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:36,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 17:16:36,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:37,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 17:16:37,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:16:37,506 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:16:37,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136893863] [2021-12-06 17:16:37,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136893863] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:37,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:37,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 17:16:37,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588127420] [2021-12-06 17:16:37,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:37,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 17:16:37,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:16:37,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 17:16:37,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:16:37,507 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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) [2021-12-06 17:16:37,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:37,633 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2021-12-06 17:16:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:16:37,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 28 [2021-12-06 17:16:37,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:37,633 INFO L225 Difference]: With dead ends: 45 [2021-12-06 17:16:37,633 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 17:16:37,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-06 17:16:37,634 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:37,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 41 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2021-12-06 17:16:37,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 17:16:37,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 17:16:37,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-12-06 17:16:37,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 17:16:37,636 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-12-06 17:16:37,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:37,636 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:16:37,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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) [2021-12-06 17:16:37,636 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 17:16:37,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 17:16:37,638 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 17:16:37,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-06 17:16:37,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:16:37,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 17:16:38,279 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-12-06 17:16:38,280 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2021-12-06 17:16:38,280 INFO L858 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2021-12-06 17:16:38,280 INFO L858 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2021-12-06 17:16:38,280 INFO L854 garLoopResultBuilder]: At program point L118(lines 109 119) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_~x#1| .cse0) |ULTIMATE.start_main_#t~short16#1| (= .cse0 |ULTIMATE.start_fmod_float_#res#1|) (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32)) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= .cse0 (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~0#1|))) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= .cse0 |ULTIMATE.start_main_~x~0#1|))) [2021-12-06 17:16:38,280 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2021-12-06 17:16:38,280 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-12-06 17:16:38,280 INFO L854 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2021-12-06 17:16:38,280 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 17:16:38,280 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 17:16:38,281 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2021-12-06 17:16:38,281 INFO L858 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2021-12-06 17:16:38,281 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-12-06 17:16:38,281 INFO L858 garLoopResultBuilder]: For program point L136-2(lines 136 139) no Hoare annotation was computed. [2021-12-06 17:16:38,281 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2021-12-06 17:16:38,281 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 112 116) no Hoare annotation was computed. [2021-12-06 17:16:38,281 INFO L854 garLoopResultBuilder]: At program point L112-2(lines 112 116) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_~x#1| .cse0) |ULTIMATE.start_main_#t~short16#1| (= .cse0 |ULTIMATE.start_fmod_float_#res#1|) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= .cse0 |ULTIMATE.start_main_~x~0#1|))) [2021-12-06 17:16:38,281 INFO L858 garLoopResultBuilder]: For program point L112-3(lines 112 116) no Hoare annotation was computed. [2021-12-06 17:16:38,281 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-12-06 17:16:38,281 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2021-12-06 17:16:38,281 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2021-12-06 17:16:38,281 INFO L858 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2021-12-06 17:16:38,282 INFO L854 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_~x#1| .cse0) (or (fp.lt |ULTIMATE.start_fmod_float_~y#1| (_ +zero 8 24)) (fp.gt |ULTIMATE.start_fmod_float_~y#1| (_ +zero 8 24))) (= .cse0 |ULTIMATE.start_main_~x~0#1|))) [2021-12-06 17:16:38,282 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-12-06 17:16:38,282 INFO L858 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2021-12-06 17:16:38,282 INFO L854 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_~x#1| .cse0) (= .cse0 |ULTIMATE.start_fmod_float_#res#1|) (= .cse0 |ULTIMATE.start_main_~x~0#1|))) [2021-12-06 17:16:38,282 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-12-06 17:16:38,282 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 140) no Hoare annotation was computed. [2021-12-06 17:16:38,282 INFO L858 garLoopResultBuilder]: For program point L131-2(lines 131 140) no Hoare annotation was computed. [2021-12-06 17:16:38,282 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 17:16:38,282 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2021-12-06 17:16:38,283 INFO L854 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2021-12-06 17:16:38,283 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2021-12-06 17:16:38,283 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2021-12-06 17:16:38,283 INFO L854 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_~x#1| .cse0) (= .cse0 |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_fmod_float_~hx~0#1_39| (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_~hy~0#1_24| (_ BitVec 32))) (let ((.cse1 (bvand (_ bv2147483647 32) |v_ULTIMATE.start_fmod_float_~hy~0#1_24|))) (and (= |ULTIMATE.start_fmod_float_~i~0#1| (bvshl .cse1 (_ bv8 32))) (not (bvslt (bvxor |v_ULTIMATE.start_fmod_float_~hx~0#1_39| (bvand (_ bv2147483648 32) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|)) .cse1)) (= (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|)) (fp.neg (_ +zero 8 24)))))))) [2021-12-06 17:16:38,283 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2021-12-06 17:16:38,283 INFO L854 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2021-12-06 17:16:38,284 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 17:16:38,284 INFO L858 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2021-12-06 17:16:38,284 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-12-06 17:16:38,284 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2021-12-06 17:16:38,284 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2021-12-06 17:16:38,284 INFO L858 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2021-12-06 17:16:38,284 INFO L854 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2021-12-06 17:16:38,284 INFO L858 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2021-12-06 17:16:38,284 INFO L861 garLoopResultBuilder]: At program point L142(lines 121 143) the Hoare annotation is: true [2021-12-06 17:16:38,284 INFO L858 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-12-06 17:16:38,285 INFO L854 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_~x#1| .cse0) (exists ((|v_ULTIMATE.start_fmod_float_~hy~0#1_22| (_ BitVec 32))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start_fmod_float_~hy~0#1_22|) |ULTIMATE.start_fmod_float_~hy~0#1|)) (exists ((|v_ULTIMATE.start_fmod_float_~hx~0#1_39| (_ BitVec 32))) (and (not (bvslt (bvxor |v_ULTIMATE.start_fmod_float_~hx~0#1_39| (bvand (_ bv2147483648 32) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|)) |ULTIMATE.start_fmod_float_~hy~0#1|)) (= (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|)) (fp.neg (_ +zero 8 24))))) (= .cse0 |ULTIMATE.start_main_~x~0#1|))) [2021-12-06 17:16:38,287 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:38,288 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:16:38,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-06 17:16:38,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-06 17:16:38,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,297 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,301 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-06 17:16:38,301 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,302 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,302 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-06 17:16:38,302 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,302 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,302 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,304 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] [2021-12-06 17:16:38,304 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,304 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,304 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,304 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,305 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,305 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] [2021-12-06 17:16:38,305 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,305 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,305 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,306 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,306 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:16:38 BoogieIcfgContainer [2021-12-06 17:16:38,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:16:38,309 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:16:38,309 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:16:38,309 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:16:38,310 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:16:29" (3/4) ... [2021-12-06 17:16:38,313 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 17:16:38,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-12-06 17:16:38,323 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-12-06 17:16:38,323 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 17:16:38,323 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 17:16:38,345 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 17:16:38,346 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:16:38,346 INFO L158 Benchmark]: Toolchain (without parser) took 11572.74ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 34.9MB in the beginning and 42.4MB in the end (delta: -7.4MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2021-12-06 17:16:38,346 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 56.6MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:16:38,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.98ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 36.9MB in the end (delta: -2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 17:16:38,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.79ms. Allocated memory is still 56.6MB. Free memory was 36.7MB in the beginning and 34.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:16:38,348 INFO L158 Benchmark]: Boogie Preprocessor took 27.51ms. Allocated memory is still 56.6MB. Free memory was 34.8MB in the beginning and 32.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:16:38,348 INFO L158 Benchmark]: RCFGBuilder took 2073.19ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 32.7MB in the beginning and 50.6MB in the end (delta: -17.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 17:16:38,348 INFO L158 Benchmark]: TraceAbstraction took 9190.68ms. Allocated memory is still 77.6MB. Free memory was 50.3MB in the beginning and 44.9MB in the end (delta: 5.4MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-12-06 17:16:38,349 INFO L158 Benchmark]: Witness Printer took 36.48ms. Allocated memory is still 77.6MB. Free memory was 44.9MB in the beginning and 42.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:16:38,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 56.6MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.98ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 36.9MB in the end (delta: -2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.79ms. Allocated memory is still 56.6MB. Free memory was 36.7MB in the beginning and 34.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.51ms. Allocated memory is still 56.6MB. Free memory was 34.8MB in the beginning and 32.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2073.19ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 32.7MB in the beginning and 50.6MB in the end (delta: -17.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9190.68ms. Allocated memory is still 77.6MB. Free memory was 50.3MB in the beginning and 44.9MB in the end (delta: 5.4MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Witness Printer took 36.48ms. Allocated memory is still 77.6MB. Free memory was 44.9MB in the beginning and 42.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] * 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 - PositiveResult [Line: 137]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 328 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 328 mSDsluCounter, 1675 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 203 IncrementalHoareTripleChecker+Unchecked, 1243 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 195 IncrementalHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 432 mSDtfsCounter, 195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 63, 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, 9 MinimizatonAttempts, 25 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 19 NumberOfFragments, 164 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 147 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 165 ConstructedInterpolants, 32 QuantifiedInterpolants, 1196 SizeOfPredicates, 56 NumberOfNonLiveVariables, 687 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 1/1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant [2021-12-06 17:16:38,357 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-06 17:16:38,358 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,358 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,358 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-06 17:16:38,358 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,358 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,358 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-06 17:16:38,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-06 17:16:38,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] Derived loop invariant: (x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && (\exists v_ULTIMATE.start_fmod_float_~hx~0#1_39 : bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_24 : bv32 :: (i == ~bvshl32(~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_24), 8bv32) && !~bvslt32(~bvxor32(v_ULTIMATE.start_fmod_float_~hx~0#1_39, ~bvand32(2147483648bv32, v_ULTIMATE.start_fmod_float_~hx~0#1_39)), ~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_24))) && ~fp~LONGDOUBLE(v_ULTIMATE.start_fmod_float_~hx~0#1_39[31:31], v_ULTIMATE.start_fmod_float_~hx~0#1_39[30:23], v_ULTIMATE.start_fmod_float_~hx~0#1_39[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (~fp.lt~FLOAT(y, ~Pluszero~LONGDOUBLE()) || ~fp.gt~FLOAT(y, ~Pluszero~LONGDOUBLE()))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant [2021-12-06 17:16:38,360 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] [2021-12-06 17:16:38,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] [2021-12-06 17:16:38,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-06 17:16:38,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists v_ULTIMATE.start_fmod_float_~hy~0#1_22 : bv32 :: ~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_22) == hy)) && (\exists v_ULTIMATE.start_fmod_float_~hx~0#1_39 : bv32 :: !~bvslt32(~bvxor32(v_ULTIMATE.start_fmod_float_~hx~0#1_39, ~bvand32(2147483648bv32, v_ULTIMATE.start_fmod_float_~hx~0#1_39)), hy) && ~fp~LONGDOUBLE(v_ULTIMATE.start_fmod_float_~hx~0#1_39[31:31], v_ULTIMATE.start_fmod_float_~hx~0#1_39[30:23], v_ULTIMATE.start_fmod_float_~hx~0#1_39[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && \result == 1bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: ((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x RESULT: Ultimate proved your program to be correct! [2021-12-06 17:16:38,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16b8faa-c245-497a-8e03-7fcab842bfaf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE