./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0 --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 05e2baf38cd0eae96e398823454df9c6d2eba699137545e6490e497cf90c6efe --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:08:03,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:08:03,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:08:03,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:08:03,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:08:03,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:08:03,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:08:03,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:08:03,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:08:03,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:08:03,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:08:03,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:08:03,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:08:03,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:08:03,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:08:03,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:08:03,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:08:03,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:08:03,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:08:03,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:08:03,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:08:03,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:08:03,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:08:03,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:08:03,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:08:03,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:08:03,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:08:03,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:08:03,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:08:03,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:08:03,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:08:03,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:08:03,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:08:03,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:08:03,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:08:03,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:08:03,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:08:03,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:08:03,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:08:03,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:08:03,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:08:03,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 16:08:03,859 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:08:03,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:08:03,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:08:03,861 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:08:03,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:08:03,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:08:03,863 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:08:03,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:08:03,863 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:08:03,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:08:03,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:08:03,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:08:03,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:08:03,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:08:03,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:08:03,865 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:08:03,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:08:03,865 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:08:03,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:08:03,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:08:03,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:08:03,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:08:03,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:08:03,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:08:03,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:08:03,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:08:03,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:08:03,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:08:03,873 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:08:03,875 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:08:03,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:08:03,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:08:03,876 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_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05e2baf38cd0eae96e398823454df9c6d2eba699137545e6490e497cf90c6efe [2021-11-22 16:08:04,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:08:04,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:08:04,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:08:04,233 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:08:04,234 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:08:04,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2021-11-22 16:08:04,321 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/data/5e9aa58d3/4e04be8afd184539a9f9d15eeca73ec1/FLAG7a936a117 [2021-11-22 16:08:04,877 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:08:04,881 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2021-11-22 16:08:04,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/data/5e9aa58d3/4e04be8afd184539a9f9d15eeca73ec1/FLAG7a936a117 [2021-11-22 16:08:05,213 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/data/5e9aa58d3/4e04be8afd184539a9f9d15eeca73ec1 [2021-11-22 16:08:05,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:08:05,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:08:05,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:08:05,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:08:05,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:08:05,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:08:05" (1/1) ... [2021-11-22 16:08:05,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@734bc699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:05, skipping insertion in model container [2021-11-22 16:08:05,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:08:05" (1/1) ... [2021-11-22 16:08:05,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:08:05,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:08:05,557 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_8b56059d-ec72-4f91-a211-6cc7564b5c5f/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c[3225,3238] [2021-11-22 16:08:05,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:08:05,583 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:08:05,651 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_8b56059d-ec72-4f91-a211-6cc7564b5c5f/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c[3225,3238] [2021-11-22 16:08:05,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:08:05,698 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:08:05,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:05 WrapperNode [2021-11-22 16:08:05,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:08:05,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:08:05,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:08:05,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:08:05,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:05" (1/1) ... [2021-11-22 16:08:05,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:05" (1/1) ... [2021-11-22 16:08:05,788 INFO L137 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 180 [2021-11-22 16:08:05,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:08:05,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:08:05,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:08:05,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:08:05,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:05" (1/1) ... [2021-11-22 16:08:05,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:05" (1/1) ... [2021-11-22 16:08:05,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:05" (1/1) ... [2021-11-22 16:08:05,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:05" (1/1) ... [2021-11-22 16:08:05,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:05" (1/1) ... [2021-11-22 16:08:05,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:05" (1/1) ... [2021-11-22 16:08:05,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:05" (1/1) ... [2021-11-22 16:08:05,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:08:05,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:08:05,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:08:05,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:08:05,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:05" (1/1) ... [2021-11-22 16:08:05,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:08:05,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:08:05,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:08:05,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:08:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:08:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 16:08:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 16:08:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-22 16:08:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 16:08:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-22 16:08:06,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:08:06,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:08:06,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 16:08:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 16:08:06,103 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:08:06,105 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:08:06,578 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:08:06,586 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:08:06,586 INFO L301 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-22 16:08:06,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:08:06 BoogieIcfgContainer [2021-11-22 16:08:06,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:08:06,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:08:06,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:08:06,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:08:06,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:08:05" (1/3) ... [2021-11-22 16:08:06,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ffa45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:08:06, skipping insertion in model container [2021-11-22 16:08:06,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:05" (2/3) ... [2021-11-22 16:08:06,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ffa45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:08:06, skipping insertion in model container [2021-11-22 16:08:06,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:08:06" (3/3) ... [2021-11-22 16:08:06,601 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b.c [2021-11-22 16:08:06,608 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:08:06,608 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 16:08:06,667 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:08:06,676 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 [2021-11-22 16:08:06,677 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 16:08:06,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 52 states have internal predecessors, (84), 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) [2021-11-22 16:08:06,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-22 16:08:06,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:08:06,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:08:06,706 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:08:06,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:08:06,713 INFO L85 PathProgramCache]: Analyzing trace with hash 361085180, now seen corresponding path program 1 times [2021-11-22 16:08:06,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:08:06,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834618003] [2021-11-22 16:08:06,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:08:06,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:08:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:08:06,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:08:06,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:08:06,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834618003] [2021-11-22 16:08:06,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834618003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:08:06,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:08:06,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:08:06,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911245767] [2021-11-22 16:08:06,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:08:06,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 16:08:06,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:08:06,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 16:08:06,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:08:06,943 INFO L87 Difference]: Start difference. First operand has 53 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 52 states have internal predecessors, (84), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-22 16:08:06,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:08:06,970 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2021-11-22 16:08:06,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 16:08:06,973 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-22 16:08:06,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:08:06,984 INFO L225 Difference]: With dead ends: 104 [2021-11-22 16:08:06,985 INFO L226 Difference]: Without dead ends: 50 [2021-11-22 16:08:06,988 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 [2021-11-22 16:08:06,993 INFO L933 BasicCegarLoop]: 73 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, 73 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 [2021-11-22 16:08:06,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:08:07,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-22 16:08:07,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-22 16:08:07,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 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) [2021-11-22 16:08:07,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2021-11-22 16:08:07,077 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 8 [2021-11-22 16:08:07,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:08:07,078 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2021-11-22 16:08:07,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-22 16:08:07,079 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2021-11-22 16:08:07,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 16:08:07,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:08:07,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:08:07,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 16:08:07,082 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:08:07,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:08:07,087 INFO L85 PathProgramCache]: Analyzing trace with hash 331839487, now seen corresponding path program 1 times [2021-11-22 16:08:07,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:08:07,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76941561] [2021-11-22 16:08:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:08:07,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:08:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:08:07,186 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:08:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:08:07,274 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:08:07,275 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 16:08:07,278 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 16:08:07,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 16:08:07,288 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 16:08:07,295 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 16:08:07,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 04:08:07 BoogieIcfgContainer [2021-11-22 16:08:07,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 16:08:07,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:08:07,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:08:07,348 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:08:07,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:08:06" (3/4) ... [2021-11-22 16:08:07,353 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 16:08:07,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:08:07,357 INFO L158 Benchmark]: Toolchain (without parser) took 2136.35ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 68.9MB in the beginning and 102.9MB in the end (delta: -34.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:08:07,357 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:08:07,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.76ms. Allocated memory is still 107.0MB. Free memory was 68.7MB in the beginning and 78.9MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 16:08:07,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.96ms. Allocated memory is still 107.0MB. Free memory was 78.9MB in the beginning and 76.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:08:07,365 INFO L158 Benchmark]: Boogie Preprocessor took 84.88ms. Allocated memory is still 107.0MB. Free memory was 76.4MB in the beginning and 74.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:08:07,370 INFO L158 Benchmark]: RCFGBuilder took 705.09ms. Allocated memory is still 107.0MB. Free memory was 74.7MB in the beginning and 59.1MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-22 16:08:07,370 INFO L158 Benchmark]: TraceAbstraction took 755.40ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 58.6MB in the beginning and 102.9MB in the end (delta: -44.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:08:07,371 INFO L158 Benchmark]: Witness Printer took 6.26ms. Allocated memory is still 132.1MB. Free memory is still 102.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:08:07,373 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 107.0MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.76ms. Allocated memory is still 107.0MB. Free memory was 68.7MB in the beginning and 78.9MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.96ms. Allocated memory is still 107.0MB. Free memory was 78.9MB in the beginning and 76.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.88ms. Allocated memory is still 107.0MB. Free memory was 76.4MB in the beginning and 74.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 705.09ms. Allocated memory is still 107.0MB. Free memory was 74.7MB in the beginning and 59.1MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 755.40ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 58.6MB in the beginning and 102.9MB in the end (delta: -44.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.26ms. Allocated memory is still 132.1MB. Free memory is still 102.9MB. 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: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 151, overapproximation of someBinaryArithmeticDOUBLEoperation at line 35, overapproximation of bitwiseAnd at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 155. Possible FailurePath: [L19] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L151] double x = -0.0; [L152] CALL, EXPR __ieee754_sqrt(x) [L22] double z; [L23] __int32_t sign = 0x80000000; [L24] __uint32_t r, t1, s1, ix1, q1; [L25] __int32_t ix0, s0, q, m, t, i; VAL [\old(x)=4294967296, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (ix0) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (ix1) = ew_u.parts.lsw [L34] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L35] return x * x + x; VAL [\old(x)=4294967296, ix0=-1, ix1=4294967297, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] [L152] RET, EXPR __ieee754_sqrt(x) [L152] double res = __ieee754_sqrt(x); [L155] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [one_sqrt=1, res=4294967298, res == -0.0 && __signbit_double(res) == 1=0, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] [L155] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L156] reach_error() VAL [one_sqrt=1, res=4294967298, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 73 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-22 16:08:07,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0 --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 05e2baf38cd0eae96e398823454df9c6d2eba699137545e6490e497cf90c6efe --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:08:10,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:08:10,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:08:10,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:08:10,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:08:10,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:08:10,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:08:10,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:08:10,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:08:10,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:08:10,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:08:10,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:08:10,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:08:10,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:08:10,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:08:10,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:08:10,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:08:10,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:08:10,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:08:10,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:08:10,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:08:10,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:08:10,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:08:10,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:08:10,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:08:10,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:08:10,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:08:10,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:08:10,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:08:10,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:08:10,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:08:10,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:08:10,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:08:10,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:08:10,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:08:10,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:08:10,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:08:10,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:08:10,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:08:10,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:08:10,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:08:10,572 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-22 16:08:10,629 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:08:10,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:08:10,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:08:10,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:08:10,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:08:10,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:08:10,633 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:08:10,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:08:10,635 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:08:10,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:08:10,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:08:10,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:08:10,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:08:10,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:08:10,637 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 16:08:10,637 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 16:08:10,637 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 16:08:10,638 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:08:10,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:08:10,638 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:08:10,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:08:10,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:08:10,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:08:10,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:08:10,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:08:10,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:08:10,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:08:10,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:08:10,640 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 16:08:10,641 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 16:08:10,641 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:08:10,641 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:08:10,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:08:10,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:08:10,642 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 16:08:10,642 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_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05e2baf38cd0eae96e398823454df9c6d2eba699137545e6490e497cf90c6efe [2021-11-22 16:08:11,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:08:11,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:08:11,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:08:11,178 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:08:11,179 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:08:11,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2021-11-22 16:08:11,255 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/data/0a08f8d4c/f383617f6d13451db806a18a2bf213a0/FLAG12fd09ce9 [2021-11-22 16:08:11,877 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:08:11,886 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2021-11-22 16:08:11,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/data/0a08f8d4c/f383617f6d13451db806a18a2bf213a0/FLAG12fd09ce9 [2021-11-22 16:08:12,176 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/data/0a08f8d4c/f383617f6d13451db806a18a2bf213a0 [2021-11-22 16:08:12,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:08:12,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:08:12,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:08:12,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:08:12,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:08:12,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:08:12" (1/1) ... [2021-11-22 16:08:12,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ad0400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:12, skipping insertion in model container [2021-11-22 16:08:12,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:08:12" (1/1) ... [2021-11-22 16:08:12,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:08:12,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:08:12,470 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_8b56059d-ec72-4f91-a211-6cc7564b5c5f/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c[3225,3238] [2021-11-22 16:08:12,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:08:12,489 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:08:12,601 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_8b56059d-ec72-4f91-a211-6cc7564b5c5f/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c[3225,3238] [2021-11-22 16:08:12,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:08:12,647 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:08:12,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:12 WrapperNode [2021-11-22 16:08:12,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:08:12,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:08:12,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:08:12,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:08:12,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:12" (1/1) ... [2021-11-22 16:08:12,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:12" (1/1) ... [2021-11-22 16:08:12,703 INFO L137 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 180 [2021-11-22 16:08:12,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:08:12,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:08:12,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:08:12,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:08:12,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:12" (1/1) ... [2021-11-22 16:08:12,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:12" (1/1) ... [2021-11-22 16:08:12,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:12" (1/1) ... [2021-11-22 16:08:12,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:12" (1/1) ... [2021-11-22 16:08:12,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:12" (1/1) ... [2021-11-22 16:08:12,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:12" (1/1) ... [2021-11-22 16:08:12,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:12" (1/1) ... [2021-11-22 16:08:12,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:08:12,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:08:12,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:08:12,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:08:12,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:12" (1/1) ... [2021-11-22 16:08:12,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:08:12,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:08:12,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:08:12,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:08:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:08:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-22 16:08:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-22 16:08:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 16:08:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 16:08:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-22 16:08:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:08:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:08:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-22 16:08:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 16:08:12,952 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:08:12,954 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:08:16,504 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:08:16,515 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:08:16,518 INFO L301 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-22 16:08:16,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:08:16 BoogieIcfgContainer [2021-11-22 16:08:16,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:08:16,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:08:16,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:08:16,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:08:16,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:08:12" (1/3) ... [2021-11-22 16:08:16,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699d34f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:08:16, skipping insertion in model container [2021-11-22 16:08:16,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:08:12" (2/3) ... [2021-11-22 16:08:16,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699d34f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:08:16, skipping insertion in model container [2021-11-22 16:08:16,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:08:16" (3/3) ... [2021-11-22 16:08:16,546 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b.c [2021-11-22 16:08:16,554 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:08:16,555 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 16:08:16,608 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:08:16,616 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 [2021-11-22 16:08:16,616 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 16:08:16,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 52 states have internal predecessors, (84), 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) [2021-11-22 16:08:16,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-22 16:08:16,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:08:16,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:08:16,644 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:08:16,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:08:16,651 INFO L85 PathProgramCache]: Analyzing trace with hash 361085180, now seen corresponding path program 1 times [2021-11-22 16:08:16,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:08:16,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238960983] [2021-11-22 16:08:16,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:08:16,667 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:08:16,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:08:16,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:08:16,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 16:08:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:08:17,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 16:08:17,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:08:17,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:08:17,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:08:17,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:08:17,314 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:08:17,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238960983] [2021-11-22 16:08:17,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238960983] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:08:17,315 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:08:17,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 16:08:17,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503290590] [2021-11-22 16:08:17,318 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:08:17,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 16:08:17,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:08:17,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 16:08:17,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:08:17,362 INFO L87 Difference]: Start difference. First operand has 53 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 52 states have internal predecessors, (84), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-22 16:08:17,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:08:17,389 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2021-11-22 16:08:17,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 16:08:17,392 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-22 16:08:17,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:08:17,404 INFO L225 Difference]: With dead ends: 104 [2021-11-22 16:08:17,405 INFO L226 Difference]: Without dead ends: 50 [2021-11-22 16:08:17,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:08:17,413 INFO L933 BasicCegarLoop]: 73 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, 73 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 [2021-11-22 16:08:17,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:08:17,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-22 16:08:17,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-22 16:08:17,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 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) [2021-11-22 16:08:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2021-11-22 16:08:17,472 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 8 [2021-11-22 16:08:17,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:08:17,473 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2021-11-22 16:08:17,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-22 16:08:17,474 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2021-11-22 16:08:17,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 16:08:17,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:08:17,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:08:17,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-22 16:08:17,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:08:17,695 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:08:17,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:08:17,697 INFO L85 PathProgramCache]: Analyzing trace with hash 331839487, now seen corresponding path program 1 times [2021-11-22 16:08:17,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:08:17,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244200869] [2021-11-22 16:08:17,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:08:17,698 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:08:17,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:08:17,710 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:08:17,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 16:08:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:08:18,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 16:08:18,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:08:18,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:08:18,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:08:18,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:08:18,640 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:08:18,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244200869] [2021-11-22 16:08:18,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244200869] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:08:18,641 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:08:18,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-22 16:08:18,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200801719] [2021-11-22 16:08:18,642 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:08:18,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:08:18,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:08:18,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:08:18,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:08:18,646 INFO L87 Difference]: Start difference. First operand 50 states and 70 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:08:20,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:08:20,377 INFO L93 Difference]: Finished difference Result 65 states and 87 transitions. [2021-11-22 16:08:20,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 16:08:20,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-22 16:08:20,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:08:20,380 INFO L225 Difference]: With dead ends: 65 [2021-11-22 16:08:20,380 INFO L226 Difference]: Without dead ends: 56 [2021-11-22 16:08:20,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:08:20,383 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 7 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-22 16:08:20,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 231 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 16 Unchecked, 1.7s Time] [2021-11-22 16:08:20,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-22 16:08:20,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2021-11-22 16:08:20,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 49 states have internal predecessors, (69), 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) [2021-11-22 16:08:20,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2021-11-22 16:08:20,396 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 9 [2021-11-22 16:08:20,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:08:20,396 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2021-11-22 16:08:20,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:08:20,397 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2021-11-22 16:08:20,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 16:08:20,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:08:20,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:08:20,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 16:08:20,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:08:20,618 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:08:20,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:08:20,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1929218748, now seen corresponding path program 1 times [2021-11-22 16:08:20,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:08:20,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851753648] [2021-11-22 16:08:20,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:08:20,620 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:08:20,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:08:20,621 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:08:20,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 16:08:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:08:20,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 16:08:20,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:08:21,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:08:21,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:08:21,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:08:21,240 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:08:21,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851753648] [2021-11-22 16:08:21,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851753648] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:08:21,241 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:08:21,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-22 16:08:21,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535439343] [2021-11-22 16:08:21,241 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:08:21,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 16:08:21,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:08:21,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 16:08:21,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:08:21,243 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:08:22,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:08:22,985 INFO L93 Difference]: Finished difference Result 62 states and 80 transitions. [2021-11-22 16:08:22,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 16:08:22,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-22 16:08:22,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:08:22,989 INFO L225 Difference]: With dead ends: 62 [2021-11-22 16:08:22,989 INFO L226 Difference]: Without dead ends: 59 [2021-11-22 16:08:22,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-22 16:08:22,991 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 84 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-22 16:08:22,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 252 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-22 16:08:22,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-11-22 16:08:23,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 52. [2021-11-22 16:08:23,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.392156862745098) internal successors, (71), 51 states have internal predecessors, (71), 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) [2021-11-22 16:08:23,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2021-11-22 16:08:23,003 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 11 [2021-11-22 16:08:23,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:08:23,004 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2021-11-22 16:08:23,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:08:23,005 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2021-11-22 16:08:23,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 16:08:23,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:08:23,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:08:23,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-22 16:08:23,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:08:23,211 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:08:23,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:08:23,212 INFO L85 PathProgramCache]: Analyzing trace with hash 239121058, now seen corresponding path program 1 times [2021-11-22 16:08:23,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:08:23,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596659493] [2021-11-22 16:08:23,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:08:23,212 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:08:23,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:08:23,215 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:08:23,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 16:08:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:08:24,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 16:08:24,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:08:24,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2021-11-22 16:08:24,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:08:24,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:08:24,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-11-22 16:08:25,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:08:25,021 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:08:25,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596659493] [2021-11-22 16:08:25,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596659493] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:08:25,022 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:08:25,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-22 16:08:25,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570123370] [2021-11-22 16:08:25,022 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:08:25,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:08:25,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:08:25,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:08:25,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:08:25,024 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:08:25,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:08:25,725 INFO L93 Difference]: Finished difference Result 95 states and 130 transitions. [2021-11-22 16:08:25,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 16:08:25,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-22 16:08:25,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:08:25,728 INFO L225 Difference]: With dead ends: 95 [2021-11-22 16:08:25,728 INFO L226 Difference]: Without dead ends: 52 [2021-11-22 16:08:25,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:08:25,734 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 2 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 16:08:25,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 194 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 13 Unchecked, 0.6s Time] [2021-11-22 16:08:25,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-22 16:08:25,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2021-11-22 16:08:25,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.36) internal successors, (68), 50 states have internal predecessors, (68), 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) [2021-11-22 16:08:25,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 68 transitions. [2021-11-22 16:08:25,750 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 68 transitions. Word has length 12 [2021-11-22 16:08:25,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:08:25,750 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 68 transitions. [2021-11-22 16:08:25,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:08:25,751 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 68 transitions. [2021-11-22 16:08:25,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-22 16:08:25,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:08:25,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:08:25,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-22 16:08:25,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:08:25,953 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:08:25,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:08:25,954 INFO L85 PathProgramCache]: Analyzing trace with hash 264903321, now seen corresponding path program 1 times [2021-11-22 16:08:25,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:08:25,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769191045] [2021-11-22 16:08:25,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:08:25,955 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:08:25,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:08:25,956 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:08:25,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-22 16:08:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:08:26,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 16:08:26,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:08:26,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:08:26,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:08:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:08:27,940 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:08:27,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769191045] [2021-11-22 16:08:27,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769191045] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:08:27,941 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:08:27,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2021-11-22 16:08:27,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706383922] [2021-11-22 16:08:27,941 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:08:27,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-22 16:08:27,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:08:27,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-22 16:08:27,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-11-22 16:08:27,943 INFO L87 Difference]: Start difference. First operand 51 states and 68 transitions. Second operand has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:08:28,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:08:28,647 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions. [2021-11-22 16:08:28,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 16:08:28,648 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-22 16:08:28,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:08:28,649 INFO L225 Difference]: With dead ends: 61 [2021-11-22 16:08:28,649 INFO L226 Difference]: Without dead ends: 51 [2021-11-22 16:08:28,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2021-11-22 16:08:28,651 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 148 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 16:08:28,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 471 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 25 Unchecked, 0.2s Time] [2021-11-22 16:08:28,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-22 16:08:28,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2021-11-22 16:08:28,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 47 states have internal predecessors, (64), 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) [2021-11-22 16:08:28,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 64 transitions. [2021-11-22 16:08:28,672 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 64 transitions. Word has length 15 [2021-11-22 16:08:28,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:08:28,673 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 64 transitions. [2021-11-22 16:08:28,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:08:28,674 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 64 transitions. [2021-11-22 16:08:28,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-22 16:08:28,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:08:28,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:08:28,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-22 16:08:28,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:08:28,915 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:08:28,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:08:28,915 INFO L85 PathProgramCache]: Analyzing trace with hash -677910631, now seen corresponding path program 1 times [2021-11-22 16:08:28,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:08:28,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809358936] [2021-11-22 16:08:28,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:08:28,916 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:08:28,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:08:28,917 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:08:28,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-22 16:08:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:08:29,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 16:08:29,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:08:29,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:08:29,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:08:29,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:08:29,663 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:08:29,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809358936] [2021-11-22 16:08:29,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809358936] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:08:29,664 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:08:29,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-22 16:08:29,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437993347] [2021-11-22 16:08:29,664 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:08:29,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:08:29,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:08:29,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:08:29,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:08:29,666 INFO L87 Difference]: Start difference. First operand 48 states and 64 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2021-11-22 16:08:29,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:08:29,735 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2021-11-22 16:08:29,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 16:08:29,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-22 16:08:29,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:08:29,736 INFO L225 Difference]: With dead ends: 48 [2021-11-22 16:08:29,736 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 16:08:29,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:08:29,738 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:08:29,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2021-11-22 16:08:29,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 16:08:29,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 16:08:29,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:08:29,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 16:08:29,740 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-11-22 16:08:29,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:08:29,740 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:08:29,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2021-11-22 16:08:29,740 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 16:08:29,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 16:08:29,744 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 16:08:29,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-22 16:08:29,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:08:29,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 16:08:30,381 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 63) no Hoare annotation was computed. [2021-11-22 16:08:30,381 INFO L858 garLoopResultBuilder]: For program point L27-1(lines 27 32) no Hoare annotation was computed. [2021-11-22 16:08:30,382 INFO L858 garLoopResultBuilder]: For program point L60-2(lines 60 63) no Hoare annotation was computed. [2021-11-22 16:08:30,382 INFO L854 garLoopResultBuilder]: At program point L27-2(lines 27 32) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrt_~sign~0#1| (_ bv2147483648 32)) (= |ULTIMATE.start___ieee754_sqrt_~x#1| (fp.neg (_ +zero 11 53)))) [2021-11-22 16:08:30,382 INFO L858 garLoopResultBuilder]: For program point L27-3(lines 21 129) no Hoare annotation was computed. [2021-11-22 16:08:30,383 INFO L858 garLoopResultBuilder]: For program point L52-2(lines 52 53) no Hoare annotation was computed. [2021-11-22 16:08:30,383 INFO L854 garLoopResultBuilder]: At program point L52-3(lines 52 53) the Hoare annotation is: false [2021-11-22 16:08:30,385 INFO L858 garLoopResultBuilder]: For program point L52-4(lines 52 53) no Hoare annotation was computed. [2021-11-22 16:08:30,386 INFO L858 garLoopResultBuilder]: For program point L110(lines 110 111) no Hoare annotation was computed. [2021-11-22 16:08:30,386 INFO L858 garLoopResultBuilder]: For program point L110-2(lines 110 111) no Hoare annotation was computed. [2021-11-22 16:08:30,386 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 116) no Hoare annotation was computed. [2021-11-22 16:08:30,386 INFO L861 garLoopResultBuilder]: At program point L160(lines 143 161) the Hoare annotation is: true [2021-11-22 16:08:30,387 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 16:08:30,387 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 16:08:30,387 INFO L858 garLoopResultBuilder]: For program point L119(lines 119 120) no Hoare annotation was computed. [2021-11-22 16:08:30,387 INFO L858 garLoopResultBuilder]: For program point L119-2(lines 119 120) no Hoare annotation was computed. [2021-11-22 16:08:30,387 INFO L854 garLoopResultBuilder]: At program point L128(lines 21 129) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= |ULTIMATE.start___ieee754_sqrt_#res#1| .cse0) (= |ULTIMATE.start___ieee754_sqrt_~x#1| .cse0))) [2021-11-22 16:08:30,387 INFO L858 garLoopResultBuilder]: For program point L87(lines 87 96) no Hoare annotation was computed. [2021-11-22 16:08:30,387 INFO L858 garLoopResultBuilder]: For program point L87-2(lines 87 96) no Hoare annotation was computed. [2021-11-22 16:08:30,388 INFO L858 garLoopResultBuilder]: For program point L46(lines 46 57) no Hoare annotation was computed. [2021-11-22 16:08:30,388 INFO L858 garLoopResultBuilder]: For program point L46-2(lines 46 57) no Hoare annotation was computed. [2021-11-22 16:08:30,388 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 115) no Hoare annotation was computed. [2021-11-22 16:08:30,388 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 43) no Hoare annotation was computed. [2021-11-22 16:08:30,388 INFO L854 garLoopResultBuilder]: At program point L71-2(lines 71 81) the Hoare annotation is: false [2021-11-22 16:08:30,388 INFO L858 garLoopResultBuilder]: For program point L38-2(lines 38 43) no Hoare annotation was computed. [2021-11-22 16:08:30,389 INFO L858 garLoopResultBuilder]: For program point L71-3(lines 71 81) no Hoare annotation was computed. [2021-11-22 16:08:30,389 INFO L854 garLoopResultBuilder]: At program point L47-2(lines 47 51) the Hoare annotation is: false [2021-11-22 16:08:30,389 INFO L858 garLoopResultBuilder]: For program point L47-3(lines 47 51) no Hoare annotation was computed. [2021-11-22 16:08:30,389 INFO L858 garLoopResultBuilder]: For program point L39(lines 39 42) no Hoare annotation was computed. [2021-11-22 16:08:30,389 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-22 16:08:30,389 INFO L858 garLoopResultBuilder]: For program point L89(lines 89 90) no Hoare annotation was computed. [2021-11-22 16:08:30,389 INFO L858 garLoopResultBuilder]: For program point L122-1(lines 122 127) no Hoare annotation was computed. [2021-11-22 16:08:30,390 INFO L858 garLoopResultBuilder]: For program point L155-2(lines 155 158) no Hoare annotation was computed. [2021-11-22 16:08:30,390 INFO L854 garLoopResultBuilder]: At program point L122-2(lines 122 127) the Hoare annotation is: false [2021-11-22 16:08:30,390 INFO L858 garLoopResultBuilder]: For program point L89-2(lines 89 90) no Hoare annotation was computed. [2021-11-22 16:08:30,390 INFO L858 garLoopResultBuilder]: For program point L122-3(lines 122 127) no Hoare annotation was computed. [2021-11-22 16:08:30,390 INFO L858 garLoopResultBuilder]: For program point L106(lines 106 114) no Hoare annotation was computed. [2021-11-22 16:08:30,390 INFO L858 garLoopResultBuilder]: For program point L73(lines 73 77) no Hoare annotation was computed. [2021-11-22 16:08:30,391 INFO L858 garLoopResultBuilder]: For program point L73-2(lines 73 77) no Hoare annotation was computed. [2021-11-22 16:08:30,391 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 16:08:30,391 INFO L858 garLoopResultBuilder]: For program point L156(line 156) no Hoare annotation was computed. [2021-11-22 16:08:30,391 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 156) no Hoare annotation was computed. [2021-11-22 16:08:30,391 INFO L854 garLoopResultBuilder]: At program point L140(lines 131 141) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short11#1| (= |ULTIMATE.start___ieee754_sqrt_~x#1| (fp.neg (_ +zero 11 53))) (= (_ bv1 32) |ULTIMATE.start___signbit_double_#res#1|)) [2021-11-22 16:08:30,391 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 42) no Hoare annotation was computed. [2021-11-22 16:08:30,391 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 16:08:30,392 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2021-11-22 16:08:30,392 INFO L858 garLoopResultBuilder]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2021-11-22 16:08:30,392 INFO L854 garLoopResultBuilder]: At program point L84-2(lines 84 100) the Hoare annotation is: false [2021-11-22 16:08:30,392 INFO L858 garLoopResultBuilder]: For program point L84-3(lines 21 129) no Hoare annotation was computed. [2021-11-22 16:08:30,392 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-11-22 16:08:30,392 INFO L858 garLoopResultBuilder]: For program point L134-1(lines 134 138) no Hoare annotation was computed. [2021-11-22 16:08:30,392 INFO L854 garLoopResultBuilder]: At program point L134-2(lines 134 138) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= |ULTIMATE.start___ieee754_sqrt_#res#1| .cse0) |ULTIMATE.start_main_#t~short11#1| (= .cse0 |ULTIMATE.start___signbit_double_~x#1|) (= |ULTIMATE.start___ieee754_sqrt_~x#1| .cse0) (= |ULTIMATE.start_main_~res~0#1| .cse0))) [2021-11-22 16:08:30,393 INFO L858 garLoopResultBuilder]: For program point L134-3(lines 134 138) no Hoare annotation was computed. [2021-11-22 16:08:30,397 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-22 16:08:30,399 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 16:08:30,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 04:08:30 BoogieIcfgContainer [2021-11-22 16:08:30,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 16:08:30,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:08:30,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:08:30,420 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:08:30,421 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:08:16" (3/4) ... [2021-11-22 16:08:30,425 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 16:08:30,440 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-22 16:08:30,441 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-22 16:08:30,442 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 16:08:30,442 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 16:08:30,474 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2021-11-22 16:08:30,475 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2021-11-22 16:08:30,476 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (aux-res == -0.0 && __signbit_double(res) == 1-aux && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && 1bv32 == \result [2021-11-22 16:08:30,505 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 16:08:30,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:08:30,507 INFO L158 Benchmark]: Toolchain (without parser) took 18324.63ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 66.3MB in the beginning and 71.9MB in the end (delta: -5.6MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2021-11-22 16:08:30,507 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 54.5MB. Free memory was 35.5MB in the beginning and 35.4MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:08:30,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.24ms. Allocated memory is still 86.0MB. Free memory was 66.1MB in the beginning and 67.9MB in the end (delta: -1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 16:08:30,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.43ms. Allocated memory is still 86.0MB. Free memory was 67.9MB in the beginning and 66.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:08:30,509 INFO L158 Benchmark]: Boogie Preprocessor took 53.71ms. Allocated memory is still 86.0MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:08:30,509 INFO L158 Benchmark]: RCFGBuilder took 3769.88ms. Allocated memory is still 86.0MB. Free memory was 63.9MB in the beginning and 48.1MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-22 16:08:30,510 INFO L158 Benchmark]: TraceAbstraction took 13887.55ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 47.8MB in the beginning and 77.1MB in the end (delta: -29.4MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2021-11-22 16:08:30,510 INFO L158 Benchmark]: Witness Printer took 86.19ms. Allocated memory is still 113.2MB. Free memory was 77.1MB in the beginning and 71.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 16:08:30,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 54.5MB. Free memory was 35.5MB in the beginning and 35.4MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.24ms. Allocated memory is still 86.0MB. Free memory was 66.1MB in the beginning and 67.9MB in the end (delta: -1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.43ms. Allocated memory is still 86.0MB. Free memory was 67.9MB in the beginning and 66.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.71ms. Allocated memory is still 86.0MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3769.88ms. Allocated memory is still 86.0MB. Free memory was 63.9MB in the beginning and 48.1MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13887.55ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 47.8MB in the beginning and 77.1MB in the end (delta: -29.4MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 86.19ms. Allocated memory is still 113.2MB. Free memory was 77.1MB in the beginning and 71.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 156]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 245 mSDsluCounter, 1227 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 56 IncrementalHoareTripleChecker+Unchecked, 898 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 134 IncrementalHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 329 mSDtfsCounter, 134 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 160 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 17 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 50 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 22 QuantifiedInterpolants, 674 SizeOfPredicates, 34 NumberOfNonLiveVariables, 273 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (aux-res == -0.0 && __signbit_double(res) == 1-aux && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && 1bv32 == \result - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: sign == 2147483648bv32 && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) RESULT: Ultimate proved your program to be correct! [2021-11-22 16:08:30,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b56059d-ec72-4f91-a211-6cc7564b5c5f/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE