./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_Newton-2.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_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/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_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/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_1013900b-85cf-45b0-9b8f-babacac7461f/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 67155ca1e686450fca2a6f4b9f638c838555b88a3546adff9656d040c859ca12 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:38:04,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:38:04,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:38:04,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:38:04,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:38:04,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:38:04,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:38:04,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:38:04,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:38:04,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:38:04,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:38:04,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:38:04,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:38:04,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:38:04,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:38:04,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:38:04,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:38:04,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:38:04,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:38:04,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:38:04,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:38:04,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:38:04,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:38:04,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:38:04,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:38:04,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:38:04,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:38:04,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:38:04,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:38:04,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:38:04,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:38:04,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:38:04,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:38:04,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:38:04,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:38:04,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:38:04,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:38:04,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:38:04,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:38:04,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:38:04,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:38:04,773 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:38:04,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:38:04,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:38:04,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:38:04,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:38:04,791 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:38:04,791 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:38:04,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:38:04,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:38:04,792 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:38:04,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:38:04,792 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:38:04,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:38:04,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:38:04,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:38:04,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:38:04,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:38:04,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:38:04,793 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:38:04,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:38:04,793 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:38:04,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:38:04,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:38:04,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:38:04,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:38:04,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:38:04,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:38:04,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:38:04,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:38:04,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:38:04,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:38:04,795 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:38:04,795 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:38:04,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:38:04,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:38:04,795 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_1013900b-85cf-45b0-9b8f-babacac7461f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67155ca1e686450fca2a6f4b9f638c838555b88a3546adff9656d040c859ca12 [2021-12-07 00:38:04,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:38:04,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:38:04,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:38:04,985 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:38:04,985 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:38:04,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/inv_Newton-2.c [2021-12-07 00:38:05,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/data/d1c66b204/07b714deb0374f649b7ec3365dec4353/FLAGf3f5feb98 [2021-12-07 00:38:05,456 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:38:05,457 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/sv-benchmarks/c/float-benchs/inv_Newton-2.c [2021-12-07 00:38:05,461 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/data/d1c66b204/07b714deb0374f649b7ec3365dec4353/FLAGf3f5feb98 [2021-12-07 00:38:05,471 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/data/d1c66b204/07b714deb0374f649b7ec3365dec4353 [2021-12-07 00:38:05,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:38:05,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:38:05,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:38:05,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:38:05,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:38:05,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:38:05" (1/1) ... [2021-12-07 00:38:05,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b7989d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:05, skipping insertion in model container [2021-12-07 00:38:05,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:38:05" (1/1) ... [2021-12-07 00:38:05,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:38:05,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:38:05,608 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_1013900b-85cf-45b0-9b8f-babacac7461f/sv-benchmarks/c/float-benchs/inv_Newton-2.c[847,860] [2021-12-07 00:38:05,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:38:05,629 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:38:05,637 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_1013900b-85cf-45b0-9b8f-babacac7461f/sv-benchmarks/c/float-benchs/inv_Newton-2.c[847,860] [2021-12-07 00:38:05,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:38:05,654 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:38:05,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:05 WrapperNode [2021-12-07 00:38:05,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:38:05,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:38:05,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:38:05,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:38:05,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:05" (1/1) ... [2021-12-07 00:38:05,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:05" (1/1) ... [2021-12-07 00:38:05,680 INFO L137 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2021-12-07 00:38:05,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:38:05,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:38:05,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:38:05,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:38:05,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:05" (1/1) ... [2021-12-07 00:38:05,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:05" (1/1) ... [2021-12-07 00:38:05,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:05" (1/1) ... [2021-12-07 00:38:05,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:05" (1/1) ... [2021-12-07 00:38:05,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:05" (1/1) ... [2021-12-07 00:38:05,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:05" (1/1) ... [2021-12-07 00:38:05,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:05" (1/1) ... [2021-12-07 00:38:05,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:38:05,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:38:05,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:38:05,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:38:05,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:05" (1/1) ... [2021-12-07 00:38:05,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:38:05,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:38:05,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:38:05,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:38:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:38:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:38:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:38:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-07 00:38:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:38:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-07 00:38:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:38:05,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:38:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:38:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:38:05,819 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:38:05,820 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:38:05,910 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:38:05,916 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:38:05,916 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 00:38:05,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:38:05 BoogieIcfgContainer [2021-12-07 00:38:05,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:38:05,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:38:05,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:38:05,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:38:05,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:38:05" (1/3) ... [2021-12-07 00:38:05,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ecf5160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:38:05, skipping insertion in model container [2021-12-07 00:38:05,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:05" (2/3) ... [2021-12-07 00:38:05,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ecf5160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:38:05, skipping insertion in model container [2021-12-07 00:38:05,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:38:05" (3/3) ... [2021-12-07 00:38:05,923 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_Newton-2.c [2021-12-07 00:38:05,926 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:38:05,927 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:38:05,959 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:38:05,967 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 [2021-12-07 00:38:05,967 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:38:05,977 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) [2021-12-07 00:38:05,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-07 00:38:05,981 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:38:05,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:38:05,981 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:38:05,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:38:05,986 INFO L85 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2021-12-07 00:38:05,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:38:05,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712825022] [2021-12-07 00:38:05,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:38:05,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:38:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:38:06,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:38:06,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:38:06,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712825022] [2021-12-07 00:38:06,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712825022] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:38:06,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:38:06,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:38:06,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522981183] [2021-12-07 00:38:06,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:38:06,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 00:38:06,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:38:06,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 00:38:06,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:38:06,153 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) [2021-12-07 00:38:06,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:38:06,167 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-12-07 00:38:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:38:06,169 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 [2021-12-07 00:38:06,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:38:06,176 INFO L225 Difference]: With dead ends: 25 [2021-12-07 00:38:06,177 INFO L226 Difference]: Without dead ends: 10 [2021-12-07 00:38:06,179 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 [2021-12-07 00:38:06,183 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 [2021-12-07 00:38:06,185 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] [2021-12-07 00:38:06,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-12-07 00:38:06,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-07 00:38:06,212 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) [2021-12-07 00:38:06,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-12-07 00:38:06,213 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2021-12-07 00:38:06,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:38:06,214 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-12-07 00:38:06,214 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) [2021-12-07 00:38:06,214 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-12-07 00:38:06,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-07 00:38:06,214 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:38:06,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:38:06,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:38:06,215 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:38:06,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:38:06,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times [2021-12-07 00:38:06,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:38:06,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808453728] [2021-12-07 00:38:06,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:38:06,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:38:06,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:38:06,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:38:06,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:38:06,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808453728] [2021-12-07 00:38:06,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808453728] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:38:06,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:38:06,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:38:06,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541474437] [2021-12-07 00:38:06,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:38:06,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:38:06,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:38:06,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:38:06,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:38:06,296 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) [2021-12-07 00:38:06,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:38:06,303 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-12-07 00:38:06,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:38:06,304 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 [2021-12-07 00:38:06,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:38:06,304 INFO L225 Difference]: With dead ends: 16 [2021-12-07 00:38:06,305 INFO L226 Difference]: Without dead ends: 11 [2021-12-07 00:38:06,305 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 [2021-12-07 00:38:06,306 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 [2021-12-07 00:38:06,307 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] [2021-12-07 00:38:06,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-12-07 00:38:06,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-12-07 00:38:06,309 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) [2021-12-07 00:38:06,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-12-07 00:38:06,310 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2021-12-07 00:38:06,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:38:06,310 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-12-07 00:38:06,311 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) [2021-12-07 00:38:06,311 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-12-07 00:38:06,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-07 00:38:06,311 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:38:06,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:38:06,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:38:06,312 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:38:06,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:38:06,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1873743609, now seen corresponding path program 1 times [2021-12-07 00:38:06,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:38:06,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293363944] [2021-12-07 00:38:06,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:38:06,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:38:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:38:06,352 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:38:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:38:06,397 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:38:06,397 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 00:38:06,398 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 00:38:06,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:38:06,404 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-07 00:38:06,407 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 00:38:06,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:38:06 BoogieIcfgContainer [2021-12-07 00:38:06,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 00:38:06,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:38:06,434 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:38:06,434 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:38:06,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:38:05" (3/4) ... [2021-12-07 00:38:06,439 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 00:38:06,439 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:38:06,439 INFO L158 Benchmark]: Toolchain (without parser) took 965.58ms. Allocated memory is still 121.6MB. Free memory was 86.9MB in the beginning and 51.5MB in the end (delta: 35.4MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2021-12-07 00:38:06,440 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 75.5MB. Free memory was 53.6MB in the beginning and 53.6MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:38:06,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.33ms. Allocated memory is still 121.6MB. Free memory was 86.9MB in the beginning and 97.1MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 00:38:06,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.71ms. Allocated memory is still 121.6MB. Free memory was 97.1MB in the beginning and 95.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:38:06,442 INFO L158 Benchmark]: Boogie Preprocessor took 18.73ms. Allocated memory is still 121.6MB. Free memory was 95.0MB in the beginning and 93.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:38:06,442 INFO L158 Benchmark]: RCFGBuilder took 216.95ms. Allocated memory is still 121.6MB. Free memory was 93.6MB in the beginning and 83.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 00:38:06,442 INFO L158 Benchmark]: TraceAbstraction took 515.17ms. Allocated memory is still 121.6MB. Free memory was 82.4MB in the beginning and 51.5MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-12-07 00:38:06,443 INFO L158 Benchmark]: Witness Printer took 4.75ms. Allocated memory is still 121.6MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:38:06,445 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 75.5MB. Free memory was 53.6MB in the beginning and 53.6MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.33ms. Allocated memory is still 121.6MB. Free memory was 86.9MB in the beginning and 97.1MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.71ms. Allocated memory is still 121.6MB. Free memory was 97.1MB in the beginning and 95.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.73ms. Allocated memory is still 121.6MB. Free memory was 95.0MB in the beginning and 93.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 216.95ms. Allocated memory is still 121.6MB. Free memory was 93.6MB in the beginning and 83.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 515.17ms. Allocated memory is still 121.6MB. Free memory was 82.4MB in the beginning and 51.5MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.75ms. Allocated memory is still 121.6MB. Free memory is still 51.5MB. 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: 23]: 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 37, overapproximation of someBinaryArithmeticDOUBLEoperation at line 43, overapproximation of someBinaryDOUBLEComparisonOperation at line 60, overapproximation of to_real at line 38. Possible FailurePath: [L53] double a,r; [L55] a = __VERIFIER_nondet_double() [L56] CALL assume_abort_if_not(a >= 20. && a <= 30.) [L21] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L56] RET assume_abort_if_not(a >= 20. && a <= 30.) [L58] CALL, EXPR inv(a) [L33] double xi, xsi, temp; [L34] signed int cond, exp; [L35] union double_int A_u, xi_u; [L36] A_u.d = A [L37] EXPR A_u.i [L37] exp = (signed int) ((A_u.i & 0x7FF00000) >> 20) - 1023 [L38] xi_u.d = 1 [L39] xi_u.i = ((1023-exp) << 20) [L40] EXPR xi_u.d [L40] xi = xi_u.d [L41] cond = 1 VAL [\old(A)=2145386497, A=2145386497, A_u={4:0}, cond=1, exp=-1023, xi=2145386501, xi_u={5:0}] [L42] COND TRUE \read(cond) [L43] xsi = 2*xi-A*xi*xi [L44] temp = xsi-xi [L45] cond = ((temp > 1e-10) || (temp < -1e-10)) [L46] xi = xsi VAL [\old(A)=2145386497, A=2145386497, A_u={4:0}, cond=0, exp=-1023, xi=2145386499, xi_u={5:0}, xsi=2145386499] [L42] COND FALSE !(\read(cond)) VAL [\old(A)=2145386497, A=2145386497, A_u={4:0}, cond=0, exp=-1023, xi=2145386499, xi_u={5:0}, xsi=2145386499] [L48] return xi; [L48] return xi; [L48] return xi; VAL [\old(A)=2145386497, \result=2145386499, A=2145386497, cond=0, exp=-1023, xi=2145386499, xsi=2145386499] [L58] RET, EXPR inv(a) [L58] r = inv(a) [L60] CALL __VERIFIER_assert(r >= 0 && r <= 0.06) [L23] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L23] 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 [2021-12-07 00:38:06,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/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_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/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_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/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_1013900b-85cf-45b0-9b8f-babacac7461f/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 67155ca1e686450fca2a6f4b9f638c838555b88a3546adff9656d040c859ca12 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:38:08,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:38:08,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:38:08,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:38:08,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:38:08,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:38:08,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:38:08,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:38:08,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:38:08,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:38:08,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:38:08,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:38:08,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:38:08,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:38:08,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:38:08,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:38:08,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:38:08,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:38:08,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:38:08,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:38:08,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:38:08,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:38:08,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:38:08,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:38:08,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:38:08,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:38:08,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:38:08,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:38:08,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:38:08,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:38:08,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:38:08,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:38:08,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:38:08,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:38:08,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:38:08,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:38:08,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:38:08,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:38:08,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:38:08,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:38:08,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:38:08,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-07 00:38:08,315 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:38:08,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:38:08,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:38:08,316 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:38:08,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:38:08,317 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:38:08,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:38:08,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:38:08,318 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:38:08,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:38:08,318 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:38:08,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:38:08,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:38:08,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:38:08,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:38:08,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:38:08,319 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-07 00:38:08,320 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-07 00:38:08,320 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-07 00:38:08,320 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:38:08,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:38:08,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:38:08,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:38:08,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:38:08,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:38:08,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:38:08,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:38:08,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:38:08,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:38:08,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:38:08,321 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-07 00:38:08,321 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-07 00:38:08,322 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:38:08,322 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:38:08,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:38:08,322 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:38:08,322 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-07 00:38:08,322 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_1013900b-85cf-45b0-9b8f-babacac7461f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67155ca1e686450fca2a6f4b9f638c838555b88a3546adff9656d040c859ca12 [2021-12-07 00:38:08,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:38:08,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:38:08,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:38:08,593 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:38:08,594 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:38:08,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/inv_Newton-2.c [2021-12-07 00:38:08,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/data/e678f893b/79b03ea4f04c413cb4517f1a259b06a8/FLAGfb82101a3 [2021-12-07 00:38:09,025 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:38:09,025 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/sv-benchmarks/c/float-benchs/inv_Newton-2.c [2021-12-07 00:38:09,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/data/e678f893b/79b03ea4f04c413cb4517f1a259b06a8/FLAGfb82101a3 [2021-12-07 00:38:09,041 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/data/e678f893b/79b03ea4f04c413cb4517f1a259b06a8 [2021-12-07 00:38:09,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:38:09,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:38:09,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:38:09,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:38:09,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:38:09,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:38:09" (1/1) ... [2021-12-07 00:38:09,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d8c1dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:09, skipping insertion in model container [2021-12-07 00:38:09,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:38:09" (1/1) ... [2021-12-07 00:38:09,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:38:09,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:38:09,178 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_1013900b-85cf-45b0-9b8f-babacac7461f/sv-benchmarks/c/float-benchs/inv_Newton-2.c[847,860] [2021-12-07 00:38:09,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:38:09,205 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:38:09,221 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_1013900b-85cf-45b0-9b8f-babacac7461f/sv-benchmarks/c/float-benchs/inv_Newton-2.c[847,860] [2021-12-07 00:38:09,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:38:09,242 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:38:09,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:09 WrapperNode [2021-12-07 00:38:09,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:38:09,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:38:09,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:38:09,243 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:38:09,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:09" (1/1) ... [2021-12-07 00:38:09,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:09" (1/1) ... [2021-12-07 00:38:09,270 INFO L137 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2021-12-07 00:38:09,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:38:09,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:38:09,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:38:09,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:38:09,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:09" (1/1) ... [2021-12-07 00:38:09,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:09" (1/1) ... [2021-12-07 00:38:09,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:09" (1/1) ... [2021-12-07 00:38:09,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:09" (1/1) ... [2021-12-07 00:38:09,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:09" (1/1) ... [2021-12-07 00:38:09,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:09" (1/1) ... [2021-12-07 00:38:09,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:09" (1/1) ... [2021-12-07 00:38:09,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:38:09,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:38:09,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:38:09,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:38:09,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:09" (1/1) ... [2021-12-07 00:38:09,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:38:09,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:38:09,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:38:09,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:38:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:38:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-07 00:38:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-07 00:38:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-07 00:38:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:38:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-07 00:38:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:38:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:38:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:38:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-07 00:38:09,429 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:38:09,430 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:38:11,659 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:38:11,665 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:38:11,665 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 00:38:11,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:38:11 BoogieIcfgContainer [2021-12-07 00:38:11,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:38:11,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:38:11,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:38:11,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:38:11,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:38:09" (1/3) ... [2021-12-07 00:38:11,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@868bd71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:38:11, skipping insertion in model container [2021-12-07 00:38:11,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:38:09" (2/3) ... [2021-12-07 00:38:11,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@868bd71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:38:11, skipping insertion in model container [2021-12-07 00:38:11,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:38:11" (3/3) ... [2021-12-07 00:38:11,676 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_Newton-2.c [2021-12-07 00:38:11,680 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:38:11,680 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:38:11,712 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:38:11,717 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 [2021-12-07 00:38:11,717 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:38:11,726 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) [2021-12-07 00:38:11,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-07 00:38:11,729 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:38:11,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:38:11,730 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:38:11,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:38:11,734 INFO L85 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2021-12-07 00:38:11,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:38:11,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543692056] [2021-12-07 00:38:11,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:38:11,743 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:38:11,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:38:11,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:38:11,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-07 00:38:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:38:11,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-07 00:38:11,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:38:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:38:11,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:38:11,871 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:38:11,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543692056] [2021-12-07 00:38:11,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543692056] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:38:11,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:38:11,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:38:11,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397285008] [2021-12-07 00:38:11,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:38:11,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 00:38:11,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:38:11,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 00:38:11,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:38:11,897 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) [2021-12-07 00:38:11,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:38:11,906 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-12-07 00:38:11,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:38:11,908 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 [2021-12-07 00:38:11,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:38:11,912 INFO L225 Difference]: With dead ends: 25 [2021-12-07 00:38:11,913 INFO L226 Difference]: Without dead ends: 10 [2021-12-07 00:38:11,914 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 [2021-12-07 00:38:11,918 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 [2021-12-07 00:38:11,919 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] [2021-12-07 00:38:11,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-12-07 00:38:11,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-07 00:38:11,942 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) [2021-12-07 00:38:11,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-12-07 00:38:11,943 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2021-12-07 00:38:11,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:38:11,943 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-12-07 00:38:11,943 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) [2021-12-07 00:38:11,944 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-12-07 00:38:11,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-07 00:38:11,944 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:38:11,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:38:11,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-07 00:38:12,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:38:12,147 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:38:12,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:38:12,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times [2021-12-07 00:38:12,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:38:12,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391239617] [2021-12-07 00:38:12,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:38:12,153 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:38:12,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:38:12,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:38:12,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-07 00:38:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:38:12,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 00:38:12,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:38:12,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:38:12,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 00:38:12,297 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 00:38:12,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391239617] [2021-12-07 00:38:12,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391239617] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:38:12,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:38:12,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:38:12,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187601648] [2021-12-07 00:38:12,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:38:12,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:38:12,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 00:38:12,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:38:12,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:38:12,301 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) [2021-12-07 00:38:14,496 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 [] [2021-12-07 00:38:14,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:38:14,582 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-12-07 00:38:14,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:38:14,582 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 [2021-12-07 00:38:14,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:38:14,583 INFO L225 Difference]: With dead ends: 16 [2021-12-07 00:38:14,583 INFO L226 Difference]: Without dead ends: 11 [2021-12-07 00:38:14,583 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 [2021-12-07 00:38:14,584 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 [2021-12-07 00:38:14,585 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] [2021-12-07 00:38:14,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-12-07 00:38:14,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-12-07 00:38:14,588 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) [2021-12-07 00:38:14,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-12-07 00:38:14,588 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2021-12-07 00:38:14,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:38:14,589 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-12-07 00:38:14,589 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) [2021-12-07 00:38:14,589 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-12-07 00:38:14,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-07 00:38:14,589 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:38:14,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:38:14,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-07 00:38:14,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 00:38:14,792 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:38:14,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:38:14,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1873743609, now seen corresponding path program 1 times [2021-12-07 00:38:14,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 00:38:14,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894042719] [2021-12-07 00:38:14,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:38:14,797 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 00:38:14,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 00:38:14,800 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 00:38:14,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1013900b-85cf-45b0-9b8f-babacac7461f/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-07 00:38:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:38:15,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-07 00:38:15,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 00:38:16,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 216 [2021-12-07 00:38:16,221 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:38:16,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 216 treesize of output 216 [2021-12-07 00:38:16,288 INFO L354 Elim1Store]: treesize reduction 19, result has 24.0 percent of original size [2021-12-07 00:38:16,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 296 treesize of output 300 [2021-12-07 00:38:16,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 4 [2021-12-07 00:45:33,270 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_6 (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64))) (let ((.cse5 (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|)))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_6) ((_ extract 62 52) v_skolemized_v_prenex_1_6) ((_ extract 51 0) v_skolemized_v_prenex_1_6)) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (let ((.cse2 (let ((.cse4 (let ((.cse6 (concat ((_ extract 63 32) v_skolemized_v_prenex_1_6) (bvshl (bvadd (bvneg (bvadd (bvashr (bvand (_ bv2146435072 32) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_6|)) (_ bv20 32)) (_ bv4294966273 32))) (_ bv1023 32)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse6) ((_ extract 62 52) .cse6) ((_ extract 51 0) .cse6))))) (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse4) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse5 .cse4) .cse4)) .cse4))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0)))) (let ((.cse0 (fp.gt .cse2 .cse3)) (.cse1 (fp.lt .cse2 (fp.neg .cse3)))) (or (and (= |c_ULTIMATE.start_inv_~cond~0#1| (_ bv1 32)) (or .cse0 .cse1)) (and (= |c_ULTIMATE.start_inv_~cond~0#1| (_ bv0 32)) (not .cse0) (not .cse1))))) (fp.geq .cse5 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.leq .cse5 ((_ to_fp 11 53) roundNearestTiesToEven 30.0))))) is different from false [2021-12-07 00:46:29,424 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_6 (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64))) (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|)))) (let ((.cse1 (let ((.cse3 (let ((.cse4 (concat ((_ extract 63 32) v_skolemized_v_prenex_1_6) (bvshl (bvadd (bvneg (bvadd (bvashr (bvand (_ bv2146435072 32) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_6|)) (_ bv20 32)) (_ bv4294966273 32))) (_ bv1023 32)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse3) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse3) .cse3)) .cse3))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0)))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_6) ((_ extract 62 52) v_skolemized_v_prenex_1_6) ((_ extract 51 0) v_skolemized_v_prenex_1_6)) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (not (fp.gt .cse1 .cse2)) (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (not (fp.lt .cse1 (fp.neg .cse2))))))) is different from false [2021-12-07 00:46:31,494 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_6 (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64))) (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|)))) (let ((.cse1 (let ((.cse3 (let ((.cse4 (concat ((_ extract 63 32) v_skolemized_v_prenex_1_6) (bvshl (bvadd (bvneg (bvadd (bvashr (bvand (_ bv2146435072 32) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_6|)) (_ bv20 32)) (_ bv4294966273 32))) (_ bv1023 32)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse3) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse3) .cse3)) .cse3))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0)))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_6) ((_ extract 62 52) v_skolemized_v_prenex_1_6) ((_ extract 51 0) v_skolemized_v_prenex_1_6)) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (not (fp.gt .cse1 .cse2)) (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (not (fp.lt .cse1 (fp.neg .cse2))))))) is different from true [2021-12-07 00:49:13,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-12-07 00:49:13,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 00:49:24,690 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (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|)) |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))) is different from false [2021-12-07 00:49:26,828 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (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|)) |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))) is different from true [2021-12-07 00:49:31,261 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:49:31,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 2074 treesize of output 1657 [2021-12-07 00:49:43,695 WARN L227 SmtUtils]: Spent 12.42s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-12-07 00:49:43,695 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 00:49:43,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1657 treesize of output 1615 [2021-12-07 00:50:18,210 WARN L227 SmtUtils]: Spent 34.49s on a formula simplification. DAG size of input: 20 DAG size of output: 14 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-12-07 00:50:18,211 INFO L354 Elim1Store]: treesize reduction 19, result has 45.7 percent of original size [2021-12-07 00:50:18,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 2222 treesize of output 2228 [2021-12-07 00:51:34,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 treesize of output 5 [2021-12-07 00:52:49,212 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_1_6 (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64))) (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|)))) (let ((.cse0 (let ((.cse3 (let ((.cse4 (concat ((_ extract 63 32) v_skolemized_v_prenex_1_6) (bvshl (bvadd (bvneg (bvadd (bvashr (bvand (_ bv2146435072 32) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_6|)) (_ bv20 32)) (_ bv4294966273 32))) (_ bv1023 32)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse3) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 .cse3) .cse3)) .cse3))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (fp.gt .cse0 .cse1) (fp.lt .cse0 (fp.neg .cse1)) (not (= .cse2 |c_ULTIMATE.start_main_~a~0#1|)) (not (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_6) ((_ extract 62 52) v_skolemized_v_prenex_1_6) ((_ extract 51 0) v_skolemized_v_prenex_1_6)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))))))) is different from true [2021-12-07 00:53:35,323 WARN L860 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (forall ((v_skolemized_v_prenex_1_6 (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64))) (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|)))) (let ((.cse0 (let ((.cse3 (let ((.cse4 (concat ((_ extract 63 32) v_skolemized_v_prenex_1_6) (bvshl (bvadd (bvneg (bvadd (bvashr (bvand (_ bv2146435072 32) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_6|)) (_ bv20 32)) (_ bv4294966273 32))) (_ bv1023 32)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse3) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 .cse3) .cse3)) .cse3))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (fp.gt .cse0 .cse1) (fp.lt .cse0 (fp.neg .cse1)) (not (= .cse2 |c_ULTIMATE.start_main_~a~0#1|)) (not (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_6) ((_ extract 62 52) v_skolemized_v_prenex_1_6) ((_ extract 51 0) v_skolemized_v_prenex_1_6)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))))))))) is different from true