./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/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_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/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_b8cd8285-d2e0-4277-bda5-588a516da092/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 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:02:54,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:02:54,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:02:54,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:02:54,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:02:54,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:02:54,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:02:54,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:02:54,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:02:54,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:02:54,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:02:54,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:02:54,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:02:54,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:02:54,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:02:54,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:02:54,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:02:54,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:02:54,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:02:54,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:02:54,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:02:54,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:02:54,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:02:54,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:02:54,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:02:54,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:02:54,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:02:54,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:02:54,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:02:54,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:02:54,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:02:54,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:02:54,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:02:54,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:02:54,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:02:54,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:02:54,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:02:54,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:02:54,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:02:54,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:02:54,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:02:54,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 21:02:54,385 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:02:54,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:02:54,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:02:54,386 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:02:54,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 21:02:54,387 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 21:02:54,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:02:54,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:02:54,388 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:02:54,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:02:54,388 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 21:02:54,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 21:02:54,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 21:02:54,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:02:54,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 21:02:54,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 21:02:54,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 21:02:54,389 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 21:02:54,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 21:02:54,390 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:02:54,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 21:02:54,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:02:54,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:02:54,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 21:02:54,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:02:54,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:02:54,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 21:02:54,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 21:02:54,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 21:02:54,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 21:02:54,392 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 21:02:54,392 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 21:02:54,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 21:02:54,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:02:54,392 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_b8cd8285-d2e0-4277-bda5-588a516da092/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 [2021-12-06 21:02:54,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:02:54,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:02:54,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:02:54,591 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:02:54,592 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:02:54,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-12-06 21:02:54,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/data/0115095a9/d84884a5a6a341f08bd538704915cc30/FLAGd2e2b809a [2021-12-06 21:02:55,002 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:02:55,002 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-12-06 21:02:55,007 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/data/0115095a9/d84884a5a6a341f08bd538704915cc30/FLAGd2e2b809a [2021-12-06 21:02:55,019 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/data/0115095a9/d84884a5a6a341f08bd538704915cc30 [2021-12-06 21:02:55,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:02:55,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:02:55,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:02:55,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:02:55,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:02:55,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:02:55" (1/1) ... [2021-12-06 21:02:55,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9323b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:55, skipping insertion in model container [2021-12-06 21:02:55,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:02:55" (1/1) ... [2021-12-06 21:02:55,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:02:55,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:02:55,166 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_b8cd8285-d2e0-4277-bda5-588a516da092/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-12-06 21:02:55,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:02:55,190 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:02:55,200 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_b8cd8285-d2e0-4277-bda5-588a516da092/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-12-06 21:02:55,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:02:55,218 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:02:55,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:55 WrapperNode [2021-12-06 21:02:55,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:02:55,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:02:55,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:02:55,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:02:55,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:55" (1/1) ... [2021-12-06 21:02:55,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:55" (1/1) ... [2021-12-06 21:02:55,254 INFO L137 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2021-12-06 21:02:55,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:02:55,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:02:55,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:02:55,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:02:55,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:55" (1/1) ... [2021-12-06 21:02:55,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:55" (1/1) ... [2021-12-06 21:02:55,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:55" (1/1) ... [2021-12-06 21:02:55,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:55" (1/1) ... [2021-12-06 21:02:55,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:55" (1/1) ... [2021-12-06 21:02:55,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:55" (1/1) ... [2021-12-06 21:02:55,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:55" (1/1) ... [2021-12-06 21:02:55,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:02:55,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:02:55,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:02:55,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:02:55,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:55" (1/1) ... [2021-12-06 21:02:55,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:02:55,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:02:55,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 21:02:55,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 21:02:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 21:02:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 21:02:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 21:02:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-06 21:02:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 21:02:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-06 21:02:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:02:55,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:02:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 21:02:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 21:02:55,388 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:02:55,389 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:02:55,474 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:02:55,478 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:02:55,478 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 21:02:55,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:02:55 BoogieIcfgContainer [2021-12-06 21:02:55,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:02:55,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 21:02:55,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 21:02:55,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 21:02:55,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 09:02:55" (1/3) ... [2021-12-06 21:02:55,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74df5d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:02:55, skipping insertion in model container [2021-12-06 21:02:55,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:55" (2/3) ... [2021-12-06 21:02:55,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74df5d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:02:55, skipping insertion in model container [2021-12-06 21:02:55,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:02:55" (3/3) ... [2021-12-06 21:02:55,485 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2021-12-06 21:02:55,489 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 21:02:55,489 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 21:02:55,523 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 21:02:55,528 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 21:02:55,529 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 21:02:55,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:02:55,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 21:02:55,543 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:02:55,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:02:55,544 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:02:55,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:02:55,548 INFO L85 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2021-12-06 21:02:55,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:02:55,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709416358] [2021-12-06 21:02:55,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:02:55,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:02:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:02:55,663 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 21:02:55,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:02:55,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709416358] [2021-12-06 21:02:55,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709416358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:02:55,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:02:55,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 21:02:55,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680195157] [2021-12-06 21:02:55,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:02:55,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 21:02:55,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:02:55,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 21:02:55,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 21:02:55,692 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:02:55,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:02:55,702 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-12-06 21:02:55,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 21:02:55,704 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 21:02:55,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:02:55,711 INFO L225 Difference]: With dead ends: 25 [2021-12-06 21:02:55,711 INFO L226 Difference]: Without dead ends: 10 [2021-12-06 21:02:55,714 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 21:02:55,718 INFO L933 BasicCegarLoop]: 14 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, 14 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 21:02:55,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 21:02:55,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-12-06 21:02:55,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-06 21:02:55,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:02:55,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-12-06 21:02:55,740 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2021-12-06 21:02:55,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:02:55,740 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-12-06 21:02:55,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:02:55,741 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-12-06 21:02:55,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 21:02:55,741 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:02:55,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:02:55,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 21:02:55,741 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:02:55,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:02:55,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times [2021-12-06 21:02:55,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:02:55,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225697234] [2021-12-06 21:02:55,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:02:55,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:02:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:02:55,816 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 21:02:55,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:02:55,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225697234] [2021-12-06 21:02:55,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225697234] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:02:55,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:02:55,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:02:55,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103700456] [2021-12-06 21:02:55,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:02:55,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:02:55,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:02:55,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:02:55,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:02:55,819 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:02:55,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:02:55,825 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-12-06 21:02:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:02:55,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 21:02:55,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:02:55,826 INFO L225 Difference]: With dead ends: 16 [2021-12-06 21:02:55,826 INFO L226 Difference]: Without dead ends: 11 [2021-12-06 21:02:55,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:02:55,827 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 21:02:55,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 21:02:55,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-12-06 21:02:55,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-12-06 21:02:55,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:02:55,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-12-06 21:02:55,831 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2021-12-06 21:02:55,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:02:55,831 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-12-06 21:02:55,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:02:55,831 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-12-06 21:02:55,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-06 21:02:55,832 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:02:55,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:02:55,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 21:02:55,832 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:02:55,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:02:55,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1873743609, now seen corresponding path program 1 times [2021-12-06 21:02:55,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:02:55,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699413989] [2021-12-06 21:02:55,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:02:55,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:02:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:02:55,876 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:02:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:02:55,918 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:02:55,918 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 21:02:55,919 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 21:02:55,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 21:02:55,923 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-06 21:02:55,925 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 21:02:55,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 09:02:55 BoogieIcfgContainer [2021-12-06 21:02:55,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 21:02:55,946 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 21:02:55,946 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 21:02:55,946 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 21:02:55,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:02:55" (3/4) ... [2021-12-06 21:02:55,949 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 21:02:55,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 21:02:55,949 INFO L158 Benchmark]: Toolchain (without parser) took 926.54ms. Allocated memory is still 98.6MB. Free memory was 62.0MB in the beginning and 62.3MB in the end (delta: -269.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:02:55,950 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:02:55,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.76ms. Allocated memory is still 98.6MB. Free memory was 61.8MB in the beginning and 74.4MB in the end (delta: -12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 21:02:55,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.47ms. Allocated memory is still 98.6MB. Free memory was 74.4MB in the beginning and 72.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 21:02:55,951 INFO L158 Benchmark]: Boogie Preprocessor took 18.89ms. Allocated memory is still 98.6MB. Free memory was 72.5MB in the beginning and 71.6MB in the end (delta: 928.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 21:02:55,951 INFO L158 Benchmark]: RCFGBuilder took 205.50ms. Allocated memory is still 98.6MB. Free memory was 71.2MB in the beginning and 60.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 21:02:55,951 INFO L158 Benchmark]: TraceAbstraction took 464.55ms. Allocated memory is still 98.6MB. Free memory was 59.9MB in the beginning and 62.8MB in the end (delta: -2.9MB). Peak memory consumption was 148.5kB. Max. memory is 16.1GB. [2021-12-06 21:02:55,952 INFO L158 Benchmark]: Witness Printer took 3.12ms. Allocated memory is still 98.6MB. Free memory was 62.8MB in the beginning and 62.3MB in the end (delta: 497.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:02:55,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.76ms. Allocated memory is still 98.6MB. Free memory was 61.8MB in the beginning and 74.4MB in the end (delta: -12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.47ms. Allocated memory is still 98.6MB. Free memory was 74.4MB in the beginning and 72.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.89ms. Allocated memory is still 98.6MB. Free memory was 72.5MB in the beginning and 71.6MB in the end (delta: 928.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 205.50ms. Allocated memory is still 98.6MB. Free memory was 71.2MB in the beginning and 60.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 464.55ms. Allocated memory is still 98.6MB. Free memory was 59.9MB in the beginning and 62.8MB in the end (delta: -2.9MB). Peak memory consumption was 148.5kB. Max. memory is 16.1GB. * Witness Printer took 3.12ms. Allocated memory is still 98.6MB. Free memory was 62.8MB in the beginning and 62.3MB in the end (delta: 497.5kB). 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: 16]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryArithmeticDOUBLEoperation at line 36, overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of to_real at line 31. Possible FailurePath: [L46] double a,r; [L48] a = __VERIFIER_nondet_double() [L49] CALL assume_abort_if_not(a >= 20. && a <= 30.) [L14] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L49] RET assume_abort_if_not(a >= 20. && a <= 30.) [L51] CALL, EXPR inv(a) [L26] double xi, xsi, temp; [L27] signed int cond, exp; [L28] union double_int A_u, xi_u; [L29] A_u.d = A [L30] EXPR A_u.i [L30] exp = (signed int) ((A_u.i & 0x7FF0000000000000) >> 52) - 1023 [L31] xi_u.d = 1 [L32] xi_u.i = (((long long)(1023-exp)) << 52) [L33] EXPR xi_u.d [L33] xi = xi_u.d [L34] cond = 1 VAL [\old(A)=19342822328198904395333633, A=19342822328198904395333633, A_u={4:0}, cond=1, exp=-4294968319, xi=19342822328198904395333637, xi_u={5:0}] [L35] COND TRUE \read(cond) [L36] xsi = 2*xi-A*xi*xi [L37] temp = xsi-xi [L38] cond = ((temp > 1e-10) || (temp < -1e-10)) [L39] xi = xsi VAL [\old(A)=19342822328198904395333633, A=19342822328198904395333633, A_u={4:0}, cond=0, exp=-4294968319, xi=19342822328198904395333635, xi_u={5:0}, xsi=19342822328198904395333635] [L35] COND FALSE !(\read(cond)) VAL [\old(A)=19342822328198904395333633, A=19342822328198904395333633, A_u={4:0}, cond=0, exp=-4294968319, xi=19342822328198904395333635, xi_u={5:0}, xsi=19342822328198904395333635] [L41] return xi; [L41] return xi; [L41] return xi; VAL [\old(A)=19342822328198904395333633, \result=19342822328198904395333635, A=19342822328198904395333633, cond=0, exp=-4294968319, xi=19342822328198904395333635, xsi=19342822328198904395333635] [L51] RET, EXPR inv(a) [L51] r = inv(a) [L53] CALL __VERIFIER_assert(r >= 0 && r <= 0.06) [L16] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L16] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, 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, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 23 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 21:02:55,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/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_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/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_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/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_b8cd8285-d2e0-4277-bda5-588a516da092/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 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:02:57,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:02:57,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:02:57,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:02:57,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:02:57,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:02:57,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:02:57,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:02:57,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:02:57,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:02:57,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:02:57,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:02:57,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:02:57,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:02:57,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:02:57,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:02:57,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:02:57,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:02:57,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:02:57,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:02:57,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:02:57,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:02:57,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:02:57,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:02:57,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:02:57,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:02:57,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:02:57,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:02:57,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:02:57,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:02:57,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:02:57,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:02:57,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:02:57,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:02:57,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:02:57,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:02:57,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:02:57,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:02:57,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:02:57,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:02:57,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:02:57,543 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 21:02:57,562 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:02:57,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:02:57,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:02:57,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:02:57,563 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 21:02:57,563 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 21:02:57,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:02:57,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:02:57,564 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:02:57,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:02:57,565 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 21:02:57,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 21:02:57,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:02:57,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 21:02:57,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 21:02:57,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 21:02:57,566 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 21:02:57,566 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 21:02:57,566 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 21:02:57,566 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 21:02:57,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 21:02:57,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:02:57,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 21:02:57,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:02:57,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:02:57,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 21:02:57,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:02:57,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:02:57,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 21:02:57,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 21:02:57,568 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 21:02:57,568 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 21:02:57,568 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 21:02:57,568 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 21:02:57,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 21:02:57,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:02:57,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 21:02:57,569 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_b8cd8285-d2e0-4277-bda5-588a516da092/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 [2021-12-06 21:02:57,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:02:57,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:02:57,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:02:57,821 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:02:57,821 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:02:57,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-12-06 21:02:57,871 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/data/09c28a894/94378757de664f6abdd19ff65a8dc329/FLAGf1c51f0e8 [2021-12-06 21:02:58,164 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:02:58,165 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-12-06 21:02:58,170 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/data/09c28a894/94378757de664f6abdd19ff65a8dc329/FLAGf1c51f0e8 [2021-12-06 21:02:58,589 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/data/09c28a894/94378757de664f6abdd19ff65a8dc329 [2021-12-06 21:02:58,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:02:58,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:02:58,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:02:58,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:02:58,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:02:58,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:02:58" (1/1) ... [2021-12-06 21:02:58,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a8cdcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:58, skipping insertion in model container [2021-12-06 21:02:58,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:02:58" (1/1) ... [2021-12-06 21:02:58,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:02:58,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:02:58,711 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_b8cd8285-d2e0-4277-bda5-588a516da092/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-12-06 21:02:58,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:02:58,733 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:02:58,751 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_b8cd8285-d2e0-4277-bda5-588a516da092/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-12-06 21:02:58,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:02:58,784 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:02:58,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:58 WrapperNode [2021-12-06 21:02:58,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:02:58,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:02:58,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:02:58,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:02:58,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:58" (1/1) ... [2021-12-06 21:02:58,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:58" (1/1) ... [2021-12-06 21:02:58,818 INFO L137 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2021-12-06 21:02:58,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:02:58,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:02:58,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:02:58,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:02:58,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:58" (1/1) ... [2021-12-06 21:02:58,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:58" (1/1) ... [2021-12-06 21:02:58,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:58" (1/1) ... [2021-12-06 21:02:58,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:58" (1/1) ... [2021-12-06 21:02:58,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:58" (1/1) ... [2021-12-06 21:02:58,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:58" (1/1) ... [2021-12-06 21:02:58,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:58" (1/1) ... [2021-12-06 21:02:58,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:02:58,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:02:58,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:02:58,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:02:58,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:58" (1/1) ... [2021-12-06 21:02:58,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:02:58,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:02:58,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 21:02:58,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 21:02:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 21:02:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-06 21:02:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-06 21:02:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 21:02:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 21:02:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-06 21:02:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:02:58,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:02:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-06 21:02:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 21:02:58,962 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:02:58,963 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:03:01,167 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:03:01,172 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:03:01,172 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 21:03:01,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:03:01 BoogieIcfgContainer [2021-12-06 21:03:01,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:03:01,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 21:03:01,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 21:03:01,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 21:03:01,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 09:02:58" (1/3) ... [2021-12-06 21:03:01,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299e4181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:03:01, skipping insertion in model container [2021-12-06 21:03:01,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:02:58" (2/3) ... [2021-12-06 21:03:01,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299e4181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:03:01, skipping insertion in model container [2021-12-06 21:03:01,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:03:01" (3/3) ... [2021-12-06 21:03:01,185 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2021-12-06 21:03:01,189 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 21:03:01,189 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 21:03:01,224 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 21:03:01,229 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 21:03:01,230 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 21:03:01,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:01,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 21:03:01,243 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:03:01,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:03:01,243 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:03:01,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:03:01,247 INFO L85 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2021-12-06 21:03:01,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 21:03:01,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396866467] [2021-12-06 21:03:01,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:03:01,257 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 21:03:01,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 21:03:01,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 21:03:01,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 21:03:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:03:01,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 21:03:01,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:03:01,400 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 21:03:01,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 21:03:01,401 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 21:03:01,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396866467] [2021-12-06 21:03:01,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [396866467] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:03:01,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:03:01,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 21:03:01,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710199483] [2021-12-06 21:03:01,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:03:01,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 21:03:01,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 21:03:01,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 21:03:01,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 21:03:01,437 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:01,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:03:01,447 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-12-06 21:03:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 21:03:01,449 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 21:03:01,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:03:01,454 INFO L225 Difference]: With dead ends: 25 [2021-12-06 21:03:01,454 INFO L226 Difference]: Without dead ends: 10 [2021-12-06 21:03:01,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 21:03:01,459 INFO L933 BasicCegarLoop]: 14 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, 14 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 21:03:01,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 21:03:01,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-12-06 21:03:01,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-06 21:03:01,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:01,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-12-06 21:03:01,480 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2021-12-06 21:03:01,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:03:01,481 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-12-06 21:03:01,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:01,481 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-12-06 21:03:01,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 21:03:01,481 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:03:01,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:03:01,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 21:03:01,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 21:03:01,682 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:03:01,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:03:01,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times [2021-12-06 21:03:01,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 21:03:01,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341457030] [2021-12-06 21:03:01,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:03:01,685 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 21:03:01,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 21:03:01,686 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 21:03:01,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 21:03:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:03:01,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 21:03:01,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:03:01,803 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 21:03:01,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 21:03:01,803 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 21:03:01,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341457030] [2021-12-06 21:03:01,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341457030] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:03:01,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:03:01,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:03:01,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927166691] [2021-12-06 21:03:01,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:03:01,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:03:01,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 21:03:01,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:03:01,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:03:01,807 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:04,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 21:03:04,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:03:04,085 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-12-06 21:03:04,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:03:04,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 21:03:04,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:03:04,086 INFO L225 Difference]: With dead ends: 16 [2021-12-06 21:03:04,086 INFO L226 Difference]: Without dead ends: 11 [2021-12-06 21:03:04,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:03:04,088 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-06 21:03:04,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-06 21:03:04,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-12-06 21:03:04,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-12-06 21:03:04,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:04,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-12-06 21:03:04,092 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2021-12-06 21:03:04,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:03:04,093 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-12-06 21:03:04,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:04,093 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-12-06 21:03:04,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-06 21:03:04,093 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:03:04,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:03:04,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-06 21:03:04,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 21:03:04,295 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:03:04,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:03:04,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1873743609, now seen corresponding path program 1 times [2021-12-06 21:03:04,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 21:03:04,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841130236] [2021-12-06 21:03:04,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:03:04,297 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 21:03:04,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 21:03:04,298 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 21:03:04,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8cd8285-d2e0-4277-bda5-588a516da092/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 21:03:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:03:05,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-06 21:03:05,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:03:05,863 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 231 treesize of output 219 [2021-12-06 21:03:05,876 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 219 treesize of output 213 [2021-12-06 21:07:15,474 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((v_ArrVal_53 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64)) (v_ArrVal_49 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_6|))) (.cse6 (let ((.cse7 (concat ((_ extract 63 32) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_6|) v_ArrVal_53)) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64))) v_ArrVal_49))) (fp ((_ extract 63 63) .cse7) ((_ extract 62 52) .cse7) ((_ extract 51 0) .cse7))))) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse6) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse6) .cse6)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= |c_ULTIMATE.start_inv_~xi~0#1| .cse1) (let ((.cse4 (fp.sub c_currentRoundingMode .cse1 .cse6)) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (let ((.cse3 (fp.lt .cse4 (fp.neg .cse5))) (.cse2 (fp.gt .cse4 .cse5))) (or (and (= |c_ULTIMATE.start_inv_~cond~0#1| (_ bv0 32)) (not .cse2) (not .cse3)) (and (= |c_ULTIMATE.start_inv_~cond~0#1| (_ bv1 32)) (or .cse3 .cse2)))))))))) is different from false [2021-12-06 21:07:51,941 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((v_ArrVal_53 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64)) (v_ArrVal_49 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_6|))) (.cse4 (let ((.cse5 (concat ((_ extract 63 32) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_6|) v_ArrVal_53)) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64))) v_ArrVal_49))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))))) (let ((.cse3 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse4) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse4) .cse4)))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse3 .cse4)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (not (fp.gt .cse1 .cse2)) (not (fp.lt .cse1 (fp.neg .cse2))) (= |c_ULTIMATE.start_inv_~xi~0#1| .cse3))))))) is different from false [2021-12-06 21:08:28,257 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_53 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64)) (v_ArrVal_49 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_6|))) (.cse4 (let ((.cse5 (concat ((_ extract 63 32) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_6|) v_ArrVal_53)) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64))) v_ArrVal_49))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))))) (let ((.cse3 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse4) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse4) .cse4)))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse3 .cse4)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (not (fp.gt .cse1 .cse2)) (= |c_ULTIMATE.start_inv_#res#1| .cse3) (not (fp.lt .cse1 (fp.neg .cse2)))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-12-06 21:11:49,329 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_53 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64)) (v_ArrVal_49 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_6|))) (.cse5 (let ((.cse6 (concat ((_ extract 63 32) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_6|) v_ArrVal_53)) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64))) v_ArrVal_49))) (fp ((_ extract 63 63) .cse6) ((_ extract 62 52) .cse6) ((_ extract 51 0) .cse6))))) (let ((.cse3 (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse5) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse5) .cse5)))) (let ((.cse0 (fp.sub roundNearestTiesToEven .cse3 .cse5)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0)))) (and (not (fp.lt .cse0 (fp.neg .cse1))) (not (fp.gt .cse0 .cse1)) (let ((.cse2 (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0))))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse2) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not .cse2)))) (fp.geq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.leq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 30.0))))))) is different from false [2021-12-06 21:11:51,390 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_53 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64)) (v_ArrVal_49 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_6|))) (.cse5 (let ((.cse6 (concat ((_ extract 63 32) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_6|) v_ArrVal_53)) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64))) v_ArrVal_49))) (fp ((_ extract 63 63) .cse6) ((_ extract 62 52) .cse6) ((_ extract 51 0) .cse6))))) (let ((.cse3 (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse5) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse5) .cse5)))) (let ((.cse0 (fp.sub roundNearestTiesToEven .cse3 .cse5)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0)))) (and (not (fp.lt .cse0 (fp.neg .cse1))) (not (fp.gt .cse0 .cse1)) (let ((.cse2 (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0))))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse2) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not .cse2)))) (fp.geq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.leq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 30.0))))))) is different from true [2021-12-06 21:12:29,804 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_53 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64)) (v_ArrVal_49 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_6|))) (.cse4 (let ((.cse5 (concat ((_ extract 63 32) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_6|) v_ArrVal_53)) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64))) v_ArrVal_49))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))))) (let ((.cse3 (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse4) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 .cse4) .cse4)))) (let ((.cse0 (fp.sub roundNearestTiesToEven .cse3 .cse4)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0)))) (and (not (fp.lt .cse0 (fp.neg .cse1))) (not (fp.gt .cse0 .cse1)) (fp.geq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (not (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0))))))))) is different from false [2021-12-06 21:12:31,871 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_53 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64)) (v_ArrVal_49 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_6|))) (.cse4 (let ((.cse5 (concat ((_ extract 63 32) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_6|) v_ArrVal_53)) (_ bv52 64))) (_ bv4294966273 32))))) (_ bv52 64))) v_ArrVal_49))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))))) (let ((.cse3 (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse4) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 .cse4) .cse4)))) (let ((.cse0 (fp.sub roundNearestTiesToEven .cse3 .cse4)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0)))) (and (not (fp.lt .cse0 (fp.neg .cse1))) (not (fp.gt .cse0 .cse1)) (fp.geq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (not (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0))))))))) is different from true [2021-12-06 21:12:31,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-12-06 21:12:31,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 21:12:51,905 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_inv_~xi~0#1|) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_inv_~A#1| |c_ULTIMATE.start_inv_~xi~0#1|) |c_ULTIMATE.start_inv_~xi~0#1|)))) (let ((.cse0 (fp.sub c_currentRoundingMode .cse2 |c_ULTIMATE.start_inv_~xi~0#1|)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (fp.lt .cse0 (fp.neg .cse1)) (fp.gt .cse0 .cse1) (and (fp.geq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))))))) is different from false [2021-12-06 21:12:54,010 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_inv_~xi~0#1|) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_inv_~A#1| |c_ULTIMATE.start_inv_~xi~0#1|) |c_ULTIMATE.start_inv_~xi~0#1|)))) (let ((.cse0 (fp.sub c_currentRoundingMode .cse2 |c_ULTIMATE.start_inv_~xi~0#1|)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (fp.lt .cse0 (fp.neg .cse1)) (fp.gt .cse0 .cse1) (and (fp.geq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))))))) is different from true [2021-12-06 21:12:54,041 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 3301 treesize of output 3133 [2021-12-06 21:12:54,054 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 3133 treesize of output 3049