./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0662b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0662b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF --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 0581f7e65f7fbcebfedbe5af78720fafbc68f000cf762482d99878eadfaec4df --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:36:26,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:36:26,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:36:26,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:36:26,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:36:26,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:36:26,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:36:26,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:36:26,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:36:26,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:36:26,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:36:26,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:36:26,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:36:26,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:36:26,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:36:26,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:36:26,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:36:26,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:36:26,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:36:26,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:36:26,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:36:26,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:36:26,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:36:26,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:36:26,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:36:26,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:36:26,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:36:26,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:36:26,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:36:26,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:36:26,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:36:26,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:36:26,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:36:26,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:36:26,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:36:26,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:36:26,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:36:26,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:36:26,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:36:26,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:36:26,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:36:26,738 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:36:26,788 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:36:26,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:36:26,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:36:26,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:36:26,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:36:26,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:36:26,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:36:26,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:36:26,802 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:36:26,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:36:26,803 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:36:26,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:36:26,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:36:26,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:36:26,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:36:26,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:36:26,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:36:26,806 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:36:26,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:36:26,806 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:36:26,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:36:26,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:36:26,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:36:26,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:36:26,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:36:26,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:36:26,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:36:26,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:36:26,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:36:26,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:36:26,811 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:36:26,811 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:36:26,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:36:26,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:36:26,812 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_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0581f7e65f7fbcebfedbe5af78720fafbc68f000cf762482d99878eadfaec4df [2021-11-20 07:36:27,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:36:27,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:36:27,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:36:27,224 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:36:27,225 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:36:27,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-newlib/double_req_bl_0662b.c [2021-11-20 07:36:27,336 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/data/d12dec083/a9f85e87e2aa40619fdafad2f3b52bca/FLAG62dbbfd91 [2021-11-20 07:36:27,958 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:36:27,972 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c [2021-11-20 07:36:27,982 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/data/d12dec083/a9f85e87e2aa40619fdafad2f3b52bca/FLAG62dbbfd91 [2021-11-20 07:36:28,263 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/data/d12dec083/a9f85e87e2aa40619fdafad2f3b52bca [2021-11-20 07:36:28,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:36:28,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:36:28,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:36:28,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:36:28,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:36:28,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:36:28" (1/1) ... [2021-11-20 07:36:28,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf69446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:28, skipping insertion in model container [2021-11-20 07:36:28,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:36:28" (1/1) ... [2021-11-20 07:36:28,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:36:28,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:36:28,830 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_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c[6224,6237] [2021-11-20 07:36:28,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:36:28,845 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:36:28,909 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_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c[6224,6237] [2021-11-20 07:36:28,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:36:28,930 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:36:28,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:28 WrapperNode [2021-11-20 07:36:28,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:36:28,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:36:28,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:36:28,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:36:28,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:28" (1/1) ... [2021-11-20 07:36:28,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:28" (1/1) ... [2021-11-20 07:36:28,996 INFO L137 Inliner]: procedures = 19, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 227 [2021-11-20 07:36:28,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:36:28,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:36:28,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:36:28,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:36:29,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:28" (1/1) ... [2021-11-20 07:36:29,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:28" (1/1) ... [2021-11-20 07:36:29,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:28" (1/1) ... [2021-11-20 07:36:29,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:28" (1/1) ... [2021-11-20 07:36:29,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:28" (1/1) ... [2021-11-20 07:36:29,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:28" (1/1) ... [2021-11-20 07:36:29,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:28" (1/1) ... [2021-11-20 07:36:29,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:36:29,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:36:29,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:36:29,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:36:29,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:28" (1/1) ... [2021-11-20 07:36:29,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:36:29,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:29,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:36:29,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:36:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:36:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:36:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:36:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-20 07:36:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:36:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-20 07:36:29,171 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-20 07:36:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-20 07:36:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-20 07:36:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-20 07:36:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:36:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:36:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:36:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-20 07:36:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:36:29,328 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:36:29,331 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:36:29,894 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:36:29,911 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:36:29,911 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-20 07:36:29,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:36:29 BoogieIcfgContainer [2021-11-20 07:36:29,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:36:29,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:36:29,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:36:29,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:36:29,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:36:28" (1/3) ... [2021-11-20 07:36:29,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc3e06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:36:29, skipping insertion in model container [2021-11-20 07:36:29,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:28" (2/3) ... [2021-11-20 07:36:29,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc3e06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:36:29, skipping insertion in model container [2021-11-20 07:36:29,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:36:29" (3/3) ... [2021-11-20 07:36:29,934 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b.c [2021-11-20 07:36:29,941 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:36:29,941 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:36:30,005 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:36:30,014 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 [2021-11-20 07:36:30,015 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:36:30,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 86 states have (on average 1.6627906976744187) internal successors, (143), 87 states have internal predecessors, (143), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:36:30,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 07:36:30,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:36:30,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:36:30,047 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:36:30,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:36:30,054 INFO L85 PathProgramCache]: Analyzing trace with hash 2113749773, now seen corresponding path program 1 times [2021-11-20 07:36:30,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:36:30,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454881985] [2021-11-20 07:36:30,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:36:30,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:36:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:30,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:36:30,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:36:30,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454881985] [2021-11-20 07:36:30,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454881985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:36:30,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:36:30,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:36:30,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380646270] [2021-11-20 07:36:30,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:36:30,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:36:30,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:36:30,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:36:30,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:36:30,408 INFO L87 Difference]: Start difference. First operand has 94 states, 86 states have (on average 1.6627906976744187) internal successors, (143), 87 states have internal predecessors, (143), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:36:30,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:36:30,455 INFO L93 Difference]: Finished difference Result 185 states and 302 transitions. [2021-11-20 07:36:30,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:36:30,458 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-20 07:36:30,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:36:30,468 INFO L225 Difference]: With dead ends: 185 [2021-11-20 07:36:30,468 INFO L226 Difference]: Without dead ends: 90 [2021-11-20 07:36:30,473 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 [2021-11-20 07:36:30,478 INFO L933 BasicCegarLoop]: 134 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, 134 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 [2021-11-20 07:36:30,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:36:30,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-20 07:36:30,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-20 07:36:30,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 83 states have internal predecessors, (121), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:36:30,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2021-11-20 07:36:30,536 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 11 [2021-11-20 07:36:30,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:36:30,537 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2021-11-20 07:36:30,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:36:30,537 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2021-11-20 07:36:30,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-20 07:36:30,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:36:30,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:36:30,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:36:30,539 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:36:30,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:36:30,541 INFO L85 PathProgramCache]: Analyzing trace with hash -177099114, now seen corresponding path program 1 times [2021-11-20 07:36:30,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:36:30,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265983662] [2021-11-20 07:36:30,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:36:30,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:36:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:36:30,616 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:36:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:36:30,717 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:36:30,718 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:36:30,724 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:36:30,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:36:30,733 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 07:36:30,737 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:36:30,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:36:30 BoogieIcfgContainer [2021-11-20 07:36:30,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:36:30,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:36:30,826 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:36:30,827 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:36:30,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:36:29" (3/4) ... [2021-11-20 07:36:30,831 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:36:30,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:36:30,834 INFO L158 Benchmark]: Toolchain (without parser) took 2564.89ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 68.9MB in the beginning and 65.3MB in the end (delta: 3.6MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2021-11-20 07:36:30,835 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 77.6MB. Free memory was 37.2MB in the beginning and 37.2MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:36:30,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 662.00ms. Allocated memory is still 102.8MB. Free memory was 68.7MB in the beginning and 73.3MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:36:30,844 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.87ms. Allocated memory is still 102.8MB. Free memory was 73.3MB in the beginning and 70.9MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:36:30,844 INFO L158 Benchmark]: Boogie Preprocessor took 83.01ms. Allocated memory is still 102.8MB. Free memory was 70.9MB in the beginning and 68.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:36:30,845 INFO L158 Benchmark]: RCFGBuilder took 832.63ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 68.4MB in the beginning and 99.5MB in the end (delta: -31.1MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2021-11-20 07:36:30,846 INFO L158 Benchmark]: TraceAbstraction took 908.29ms. Allocated memory is still 125.8MB. Free memory was 98.9MB in the beginning and 65.3MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-11-20 07:36:30,848 INFO L158 Benchmark]: Witness Printer took 5.38ms. Allocated memory is still 125.8MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:36:30,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 77.6MB. Free memory was 37.2MB in the beginning and 37.2MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 662.00ms. Allocated memory is still 102.8MB. Free memory was 68.7MB in the beginning and 73.3MB in the end (delta: -4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.87ms. Allocated memory is still 102.8MB. Free memory was 73.3MB in the beginning and 70.9MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.01ms. Allocated memory is still 102.8MB. Free memory was 70.9MB in the beginning and 68.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 832.63ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 68.4MB in the beginning and 99.5MB in the end (delta: -31.1MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * TraceAbstraction took 908.29ms. Allocated memory is still 125.8MB. Free memory was 98.9MB in the beginning and 65.3MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 5.38ms. Allocated memory is still 125.8MB. Free memory is still 65.3MB. 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: 262]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 261. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L253] double x = 0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y < 0.0 [L258] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=0, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [\old(x)=0, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [\old(x)=0, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=0, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0] [L258] RET, EXPR __ieee754_atan2(y, x) [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != -pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0] [L262] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 134 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, 134 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=94occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 07:36:30,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0662b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF --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 0581f7e65f7fbcebfedbe5af78720fafbc68f000cf762482d99878eadfaec4df --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:36:33,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:36:33,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:36:33,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:36:33,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:36:33,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:36:33,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:36:33,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:36:33,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:36:34,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:36:34,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:36:34,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:36:34,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:36:34,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:36:34,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:36:34,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:36:34,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:36:34,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:36:34,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:36:34,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:36:34,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:36:34,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:36:34,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:36:34,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:36:34,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:36:34,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:36:34,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:36:34,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:36:34,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:36:34,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:36:34,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:36:34,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:36:34,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:36:34,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:36:34,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:36:34,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:36:34,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:36:34,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:36:34,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:36:34,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:36:34,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:36:34,105 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 07:36:34,162 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:36:34,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:36:34,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:36:34,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:36:34,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:36:34,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:36:34,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:36:34,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:36:34,167 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:36:34,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:36:34,169 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:36:34,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:36:34,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:36:34,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:36:34,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:36:34,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:36:34,170 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 07:36:34,170 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 07:36:34,171 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 07:36:34,171 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:36:34,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:36:34,171 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:36:34,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:36:34,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:36:34,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:36:34,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:36:34,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:36:34,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:36:34,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:36:34,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:36:34,174 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 07:36:34,174 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 07:36:34,175 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:36:34,175 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:36:34,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:36:34,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:36:34,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 07:36:34,176 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_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0581f7e65f7fbcebfedbe5af78720fafbc68f000cf762482d99878eadfaec4df [2021-11-20 07:36:34,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:36:34,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:36:34,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:36:34,721 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:36:34,722 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:36:34,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-newlib/double_req_bl_0662b.c [2021-11-20 07:36:34,819 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/data/2e9f6f3ef/28cc738f5aa94950adde0414554be578/FLAGc38832460 [2021-11-20 07:36:35,453 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:36:35,453 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c [2021-11-20 07:36:35,484 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/data/2e9f6f3ef/28cc738f5aa94950adde0414554be578/FLAGc38832460 [2021-11-20 07:36:35,745 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/data/2e9f6f3ef/28cc738f5aa94950adde0414554be578 [2021-11-20 07:36:35,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:36:35,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:36:35,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:36:35,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:36:35,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:36:35,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:36:35" (1/1) ... [2021-11-20 07:36:35,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9220696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:35, skipping insertion in model container [2021-11-20 07:36:35,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:36:35" (1/1) ... [2021-11-20 07:36:35,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:36:35,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:36:36,177 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_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c[6224,6237] [2021-11-20 07:36:36,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:36:36,196 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:36:36,274 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_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c[6224,6237] [2021-11-20 07:36:36,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:36:36,308 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:36:36,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:36 WrapperNode [2021-11-20 07:36:36,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:36:36,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:36:36,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:36:36,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:36:36,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:36" (1/1) ... [2021-11-20 07:36:36,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:36" (1/1) ... [2021-11-20 07:36:36,388 INFO L137 Inliner]: procedures = 22, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 228 [2021-11-20 07:36:36,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:36:36,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:36:36,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:36:36,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:36:36,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:36" (1/1) ... [2021-11-20 07:36:36,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:36" (1/1) ... [2021-11-20 07:36:36,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:36" (1/1) ... [2021-11-20 07:36:36,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:36" (1/1) ... [2021-11-20 07:36:36,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:36" (1/1) ... [2021-11-20 07:36:36,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:36" (1/1) ... [2021-11-20 07:36:36,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:36" (1/1) ... [2021-11-20 07:36:36,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:36:36,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:36:36,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:36:36,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:36:36,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:36" (1/1) ... [2021-11-20 07:36:36,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:36:36,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:36,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:36:36,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:36:36,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:36:36,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-20 07:36:36,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-20 07:36:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 07:36:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:36:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-20 07:36:36,637 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-20 07:36:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-20 07:36:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-20 07:36:36,638 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-20 07:36:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 07:36:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:36:36,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:36:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 07:36:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:36:36,757 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:36:36,759 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:36:58,303 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:36:58,311 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:36:58,312 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-20 07:36:58,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:36:58 BoogieIcfgContainer [2021-11-20 07:36:58,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:36:58,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:36:58,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:36:58,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:36:58,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:36:35" (1/3) ... [2021-11-20 07:36:58,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49941ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:36:58, skipping insertion in model container [2021-11-20 07:36:58,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:36" (2/3) ... [2021-11-20 07:36:58,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49941ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:36:58, skipping insertion in model container [2021-11-20 07:36:58,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:36:58" (3/3) ... [2021-11-20 07:36:58,325 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b.c [2021-11-20 07:36:58,332 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:36:58,332 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:36:58,379 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:36:58,388 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 [2021-11-20 07:36:58,389 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:36:58,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 86 states have (on average 1.6627906976744187) internal successors, (143), 87 states have internal predecessors, (143), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:36:58,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 07:36:58,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:36:58,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:36:58,418 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:36:58,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:36:58,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2113749773, now seen corresponding path program 1 times [2021-11-20 07:36:58,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:36:58,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385558791] [2021-11-20 07:36:58,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:36:58,442 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:36:58,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:36:58,456 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:36:58,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 07:36:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:59,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 07:36:59,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:36:59,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:36:59,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:36:59,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:36:59,428 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:36:59,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385558791] [2021-11-20 07:36:59,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385558791] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:36:59,430 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:36:59,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 07:36:59,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054283817] [2021-11-20 07:36:59,433 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:36:59,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:36:59,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:36:59,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:36:59,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:36:59,479 INFO L87 Difference]: Start difference. First operand has 94 states, 86 states have (on average 1.6627906976744187) internal successors, (143), 87 states have internal predecessors, (143), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:36:59,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:36:59,547 INFO L93 Difference]: Finished difference Result 185 states and 302 transitions. [2021-11-20 07:36:59,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:36:59,549 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-20 07:36:59,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:36:59,562 INFO L225 Difference]: With dead ends: 185 [2021-11-20 07:36:59,562 INFO L226 Difference]: Without dead ends: 90 [2021-11-20 07:36:59,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:36:59,573 INFO L933 BasicCegarLoop]: 134 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, 134 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 [2021-11-20 07:36:59,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:36:59,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-20 07:36:59,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-20 07:36:59,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 83 states have internal predecessors, (121), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:36:59,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2021-11-20 07:36:59,680 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 11 [2021-11-20 07:36:59,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:36:59,680 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2021-11-20 07:36:59,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:36:59,681 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2021-11-20 07:36:59,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-20 07:36:59,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:36:59,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:36:59,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-20 07:36:59,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:36:59,905 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:36:59,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:36:59,906 INFO L85 PathProgramCache]: Analyzing trace with hash -177099114, now seen corresponding path program 1 times [2021-11-20 07:36:59,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:36:59,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148878199] [2021-11-20 07:36:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:36:59,907 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:36:59,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:36:59,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:36:59,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 07:37:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:00,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-20 07:37:00,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:37:00,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-20 07:37:03,455 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:37:03,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2021-11-20 07:37:03,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-11-20 07:37:06,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:37:06,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:37:09,770 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:37:09,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 92 [2021-11-20 07:37:09,923 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:37:09,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 92 [2021-11-20 07:37:10,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2021-11-20 07:37:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:37:37,167 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:37:37,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148878199] [2021-11-20 07:37:37,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148878199] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:37:37,168 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:37:37,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-20 07:37:37,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622632071] [2021-11-20 07:37:37,168 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:37:37,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:37:37,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:37:37,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:37:37,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=139, Unknown=12, NotChecked=0, Total=182 [2021-11-20 07:37:37,172 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-11-20 07:37:44,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:37:44,040 INFO L93 Difference]: Finished difference Result 94 states and 132 transitions. [2021-11-20 07:37:44,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 07:37:44,041 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-20 07:37:44,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:37:44,043 INFO L225 Difference]: With dead ends: 94 [2021-11-20 07:37:44,043 INFO L226 Difference]: Without dead ends: 90 [2021-11-20 07:37:44,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 35.9s TimeCoverageRelationStatistics Valid=46, Invalid=179, Unknown=15, NotChecked=0, Total=240 [2021-11-20 07:37:44,046 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 7 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:37:44,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 1130 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 98 Unchecked, 0.0s Time] [2021-11-20 07:37:44,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-20 07:37:44,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-20 07:37:44,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.4457831325301205) internal successors, (120), 83 states have internal predecessors, (120), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:37:44,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 128 transitions. [2021-11-20 07:37:44,059 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 128 transitions. Word has length 13 [2021-11-20 07:37:44,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:37:44,060 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 128 transitions. [2021-11-20 07:37:44,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-11-20 07:37:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 128 transitions. [2021-11-20 07:37:44,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 07:37:44,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:37:44,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:37:44,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:37:44,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:37:44,277 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:37:44,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:37:44,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1590624253, now seen corresponding path program 1 times [2021-11-20 07:37:44,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:37:44,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262931500] [2021-11-20 07:37:44,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:37:44,279 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:37:44,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:37:44,282 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:37:44,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 07:37:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:44,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:37:44,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:37:47,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:37:47,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:37:49,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:37:49,748 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:37:49,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262931500] [2021-11-20 07:37:49,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262931500] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:37:49,749 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:37:49,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 07:37:49,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505066886] [2021-11-20 07:37:49,749 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:37:49,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:37:49,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:37:49,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:37:49,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2021-11-20 07:37:49,751 INFO L87 Difference]: Start difference. First operand 90 states and 128 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) [2021-11-20 07:37:49,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:37:49,981 INFO L93 Difference]: Finished difference Result 110 states and 150 transitions. [2021-11-20 07:37:49,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:37:49,981 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 18 [2021-11-20 07:37:49,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:37:49,984 INFO L225 Difference]: With dead ends: 110 [2021-11-20 07:37:49,984 INFO L226 Difference]: Without dead ends: 105 [2021-11-20 07:37:49,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2021-11-20 07:37:49,986 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 120 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:37:49,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 433 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2021-11-20 07:37:49,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-11-20 07:37:49,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 90. [2021-11-20 07:37:49,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.4337349397590362) internal successors, (119), 83 states have internal predecessors, (119), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:37:50,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2021-11-20 07:37:50,001 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 18 [2021-11-20 07:37:50,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:37:50,006 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2021-11-20 07:37:50,007 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) [2021-11-20 07:37:50,007 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2021-11-20 07:37:50,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 07:37:50,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:37:50,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:37:50,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:37:50,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:37:50,233 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:37:50,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:37:50,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1588777211, now seen corresponding path program 1 times [2021-11-20 07:37:50,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:37:50,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756496391] [2021-11-20 07:37:50,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:37:50,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:37:50,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:37:50,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:37:50,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 07:37:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:37:50,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:37:50,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:37:54,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:37:54,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:38:05,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:38:05,819 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:38:05,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756496391] [2021-11-20 07:38:05,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [756496391] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:38:05,820 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:38:05,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-20 07:38:05,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487321703] [2021-11-20 07:38:05,821 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:38:05,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 07:38:05,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:38:05,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 07:38:05,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:38:05,823 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 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) [2021-11-20 07:38:18,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:20,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:22,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:24,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:28,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:33,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:34,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:37,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:39,990 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:42,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:45,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:47,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:49,353 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:52,614 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:55,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:38:58,537 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:39:01,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:39:01,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:01,933 INFO L93 Difference]: Finished difference Result 101 states and 137 transitions. [2021-11-20 07:39:01,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:39:01,935 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 07:39:01,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:01,939 INFO L225 Difference]: With dead ends: 101 [2021-11-20 07:39:01,940 INFO L226 Difference]: Without dead ends: 95 [2021-11-20 07:39:01,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-20 07:39:01,942 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 105 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:01,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 375 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 15 Unknown, 0 Unchecked, 52.6s Time] [2021-11-20 07:39:01,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-20 07:39:01,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 88. [2021-11-20 07:39:01,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:39:01,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 124 transitions. [2021-11-20 07:39:01,959 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 124 transitions. Word has length 18 [2021-11-20 07:39:01,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:01,960 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 124 transitions. [2021-11-20 07:39:01,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 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) [2021-11-20 07:39:01,960 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2021-11-20 07:39:01,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 07:39:01,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:01,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:01,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-20 07:39:02,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:02,164 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:02,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:02,165 INFO L85 PathProgramCache]: Analyzing trace with hash -809284995, now seen corresponding path program 1 times [2021-11-20 07:39:02,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:02,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158912199] [2021-11-20 07:39:02,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:02,166 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:02,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:02,167 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:02,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 07:39:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:02,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-20 07:39:02,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:04,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:04,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:09,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:09,506 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:09,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158912199] [2021-11-20 07:39:09,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1158912199] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:09,506 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:09,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-20 07:39:09,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412919531] [2021-11-20 07:39:09,507 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:09,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 07:39:09,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:09,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 07:39:09,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-11-20 07:39:09,508 INFO L87 Difference]: Start difference. First operand 88 states and 124 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:10,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:10,543 INFO L93 Difference]: Finished difference Result 161 states and 229 transitions. [2021-11-20 07:39:10,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:39:10,544 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 07:39:10,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:10,546 INFO L225 Difference]: With dead ends: 161 [2021-11-20 07:39:10,547 INFO L226 Difference]: Without dead ends: 88 [2021-11-20 07:39:10,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:39:10,549 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 8 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:10,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 738 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 59 Unchecked, 0.8s Time] [2021-11-20 07:39:10,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-20 07:39:10,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-11-20 07:39:10,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4197530864197532) internal successors, (115), 81 states have internal predecessors, (115), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:39:10,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 123 transitions. [2021-11-20 07:39:10,561 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 123 transitions. Word has length 18 [2021-11-20 07:39:10,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:10,562 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 123 transitions. [2021-11-20 07:39:10,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:10,563 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 123 transitions. [2021-11-20 07:39:10,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 07:39:10,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:10,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:10,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:10,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:10,778 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:10,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:10,779 INFO L85 PathProgramCache]: Analyzing trace with hash -752026693, now seen corresponding path program 1 times [2021-11-20 07:39:10,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:10,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739044393] [2021-11-20 07:39:10,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:10,780 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:10,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:10,781 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:10,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 07:39:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:11,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 07:39:11,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:11,491 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 29 treesize of output 27 [2021-11-20 07:39:12,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:12,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:14,385 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 [2021-11-20 07:39:15,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:15,327 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:15,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739044393] [2021-11-20 07:39:15,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739044393] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:15,327 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:15,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 07:39:15,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583824037] [2021-11-20 07:39:15,328 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:15,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 07:39:15,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:15,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 07:39:15,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:39:15,329 INFO L87 Difference]: Start difference. First operand 88 states and 123 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:19,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:39:19,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:19,429 INFO L93 Difference]: Finished difference Result 177 states and 249 transitions. [2021-11-20 07:39:19,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:39:19,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 07:39:19,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:19,432 INFO L225 Difference]: With dead ends: 177 [2021-11-20 07:39:19,432 INFO L226 Difference]: Without dead ends: 103 [2021-11-20 07:39:19,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-20 07:39:19,434 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 42 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:19,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 649 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 1 Unknown, 23 Unchecked, 3.9s Time] [2021-11-20 07:39:19,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-20 07:39:19,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 82. [2021-11-20 07:39:19,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 75 states have (on average 1.4) internal successors, (105), 75 states have internal predecessors, (105), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:39:19,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 113 transitions. [2021-11-20 07:39:19,447 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 113 transitions. Word has length 18 [2021-11-20 07:39:19,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:19,448 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 113 transitions. [2021-11-20 07:39:19,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:19,448 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 113 transitions. [2021-11-20 07:39:19,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 07:39:19,450 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:19,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:19,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:19,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:19,673 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:19,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:19,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1689344753, now seen corresponding path program 1 times [2021-11-20 07:39:19,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:19,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388109290] [2021-11-20 07:39:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:19,674 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:19,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:19,675 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:19,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-20 07:39:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:19,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 07:39:19,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:22,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:22,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:24,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:24,673 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:24,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388109290] [2021-11-20 07:39:24,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388109290] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:24,674 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:24,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-20 07:39:24,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233913968] [2021-11-20 07:39:24,674 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:24,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 07:39:24,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:24,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 07:39:24,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:39:24,676 INFO L87 Difference]: Start difference. First operand 82 states and 113 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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) [2021-11-20 07:39:25,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:25,331 INFO L93 Difference]: Finished difference Result 137 states and 187 transitions. [2021-11-20 07:39:25,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:39:25,332 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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 19 [2021-11-20 07:39:25,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:25,333 INFO L225 Difference]: With dead ends: 137 [2021-11-20 07:39:25,334 INFO L226 Difference]: Without dead ends: 71 [2021-11-20 07:39:25,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:39:25,336 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 12 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:25,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 495 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 10 Unchecked, 0.1s Time] [2021-11-20 07:39:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-20 07:39:25,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-20 07:39:25,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.3125) internal successors, (84), 64 states have internal predecessors, (84), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:39:25,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 92 transitions. [2021-11-20 07:39:25,346 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 92 transitions. Word has length 19 [2021-11-20 07:39:25,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:25,346 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 92 transitions. [2021-11-20 07:39:25,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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) [2021-11-20 07:39:25,347 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 92 transitions. [2021-11-20 07:39:25,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 07:39:25,348 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:25,348 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] [2021-11-20 07:39:25,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:25,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:25,572 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:39:25,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:25,573 INFO L85 PathProgramCache]: Analyzing trace with hash 590719438, now seen corresponding path program 1 times [2021-11-20 07:39:25,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:25,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389416076] [2021-11-20 07:39:25,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:25,574 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:25,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:25,577 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:25,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-20 07:39:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:26,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:39:26,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:32,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:44,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:44,214 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:44,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389416076] [2021-11-20 07:39:44,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389416076] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:44,215 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:44,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-20 07:39:44,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828642463] [2021-11-20 07:39:44,216 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:44,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 07:39:44,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:44,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 07:39:44,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:39:44,218 INFO L87 Difference]: Start difference. First operand 71 states and 92 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 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) [2021-11-20 07:39:49,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:39:56,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:39:58,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:00,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:02,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:06,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:11,645 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:14,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:16,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:18,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:20,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:22,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:26,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:28,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:30,974 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:32,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:36,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:39,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:42,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:45,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:40:45,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:40:45,635 INFO L93 Difference]: Finished difference Result 83 states and 103 transitions. [2021-11-20 07:40:45,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:40:45,637 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 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 20 [2021-11-20 07:40:45,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:40:45,639 INFO L225 Difference]: With dead ends: 83 [2021-11-20 07:40:45,639 INFO L226 Difference]: Without dead ends: 78 [2021-11-20 07:40:45,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-20 07:40:45,641 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 68 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:40:45,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 336 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 18 Unknown, 0 Unchecked, 55.8s Time] [2021-11-20 07:40:45,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-20 07:40:45,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 71. [2021-11-20 07:40:45,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.296875) internal successors, (83), 64 states have internal predecessors, (83), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:40:45,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions. [2021-11-20 07:40:45,653 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 91 transitions. Word has length 20 [2021-11-20 07:40:45,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:40:45,654 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 91 transitions. [2021-11-20 07:40:45,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 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) [2021-11-20 07:40:45,654 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions. [2021-11-20 07:40:45,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 07:40:45,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:40:45,656 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] [2021-11-20 07:40:45,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-20 07:40:45,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:40:45,865 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:40:45,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:40:45,865 INFO L85 PathProgramCache]: Analyzing trace with hash 592566480, now seen corresponding path program 1 times [2021-11-20 07:40:45,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:40:45,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992089782] [2021-11-20 07:40:45,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:40:45,866 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:40:45,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:40:45,868 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:40:45,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-20 07:40:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:46,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:40:46,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:40:50,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:40:50,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:40:53,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:40:53,838 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:40:53,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992089782] [2021-11-20 07:40:53,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992089782] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:40:53,838 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:40:53,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 07:40:53,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879627515] [2021-11-20 07:40:53,839 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:40:53,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:40:53,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:40:53,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:40:53,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2021-11-20 07:40:53,840 INFO L87 Difference]: Start difference. First operand 71 states and 91 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-11-20 07:40:54,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:40:54,125 INFO L93 Difference]: Finished difference Result 75 states and 94 transitions. [2021-11-20 07:40:54,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:40:54,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 20 [2021-11-20 07:40:54,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:40:54,127 INFO L225 Difference]: With dead ends: 75 [2021-11-20 07:40:54,128 INFO L226 Difference]: Without dead ends: 69 [2021-11-20 07:40:54,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2021-11-20 07:40:54,129 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 30 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:40:54,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 264 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 6 Unchecked, 0.1s Time] [2021-11-20 07:40:54,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-20 07:40:54,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-20 07:40:54,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 62 states have internal predecessors, (80), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:40:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2021-11-20 07:40:54,139 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 20 [2021-11-20 07:40:54,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:40:54,140 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2021-11-20 07:40:54,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-11-20 07:40:54,140 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2021-11-20 07:40:54,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-20 07:40:54,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:40:54,142 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] [2021-11-20 07:40:54,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-20 07:40:54,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:40:54,367 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:40:54,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:40:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash 802050970, now seen corresponding path program 1 times [2021-11-20 07:40:54,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:40:54,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92757032] [2021-11-20 07:40:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:40:54,369 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:40:54,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:40:54,371 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:40:54,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-20 07:40:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:54,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 07:40:54,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:41:01,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:41:01,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:41:12,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:41:12,179 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:41:12,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92757032] [2021-11-20 07:41:12,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92757032] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:41:12,180 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:41:12,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 9] imperfect sequences [] total 14 [2021-11-20 07:41:12,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370792168] [2021-11-20 07:41:12,180 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:41:12,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:41:12,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:41:12,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:41:12,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:41:12,182 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 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) [2021-11-20 07:41:15,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:41:16,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:41:16,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:41:16,695 INFO L93 Difference]: Finished difference Result 73 states and 91 transitions. [2021-11-20 07:41:16,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 07:41:16,696 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 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 21 [2021-11-20 07:41:16,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:41:16,698 INFO L225 Difference]: With dead ends: 73 [2021-11-20 07:41:16,698 INFO L226 Difference]: Without dead ends: 69 [2021-11-20 07:41:16,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-11-20 07:41:16,700 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 14 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:41:16,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 658 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 1 Unknown, 22 Unchecked, 4.1s Time] [2021-11-20 07:41:16,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-20 07:41:16,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-20 07:41:16,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.2741935483870968) internal successors, (79), 62 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:41:16,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2021-11-20 07:41:16,710 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 21 [2021-11-20 07:41:16,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:41:16,711 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2021-11-20 07:41:16,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 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) [2021-11-20 07:41:16,712 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2021-11-20 07:41:16,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-20 07:41:16,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:41:16,714 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] [2021-11-20 07:41:16,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-20 07:41:16,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:41:16,942 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:41:16,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:41:16,942 INFO L85 PathProgramCache]: Analyzing trace with hash 2015754869, now seen corresponding path program 1 times [2021-11-20 07:41:16,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:41:16,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739458725] [2021-11-20 07:41:16,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:41:16,944 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:41:16,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:41:16,945 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:41:17,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-20 07:41:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:17,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-20 07:41:17,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:41:23,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:41:23,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:41:28,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:41:28,234 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:41:28,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739458725] [2021-11-20 07:41:28,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739458725] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:41:28,234 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:41:28,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2021-11-20 07:41:28,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118788791] [2021-11-20 07:41:28,235 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:41:28,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 07:41:28,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:41:28,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 07:41:28,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-20 07:41:28,237 INFO L87 Difference]: Start difference. First operand 69 states and 87 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 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) [2021-11-20 07:41:32,310 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:41:33,760 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:41:33,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:41:33,761 INFO L93 Difference]: Finished difference Result 77 states and 93 transitions. [2021-11-20 07:41:33,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:41:33,763 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 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 23 [2021-11-20 07:41:33,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:41:33,764 INFO L225 Difference]: With dead ends: 77 [2021-11-20 07:41:33,764 INFO L226 Difference]: Without dead ends: 70 [2021-11-20 07:41:33,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-20 07:41:33,765 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 21 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:41:33,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 567 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 1 Unknown, 14 Unchecked, 4.6s Time] [2021-11-20 07:41:33,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-20 07:41:33,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2021-11-20 07:41:33,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 59 states have internal predecessors, (73), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:41:33,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 81 transitions. [2021-11-20 07:41:33,774 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 81 transitions. Word has length 23 [2021-11-20 07:41:33,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:41:33,775 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 81 transitions. [2021-11-20 07:41:33,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 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) [2021-11-20 07:41:33,775 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 81 transitions. [2021-11-20 07:41:33,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 07:41:33,777 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:41:33,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:41:33,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-20 07:41:33,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:41:33,992 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:41:33,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:41:33,993 INFO L85 PathProgramCache]: Analyzing trace with hash 497810342, now seen corresponding path program 1 times [2021-11-20 07:41:33,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:41:33,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784397773] [2021-11-20 07:41:33,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:41:33,994 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:41:33,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:41:33,995 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:41:33,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-20 07:41:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:34,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:41:34,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:41:36,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:41:36,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:41:38,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:41:38,190 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:41:38,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784397773] [2021-11-20 07:41:38,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784397773] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:41:38,190 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:41:38,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 07:41:38,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619104469] [2021-11-20 07:41:38,191 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:41:38,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 07:41:38,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:41:38,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 07:41:38,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:41:38,193 INFO L87 Difference]: Start difference. First operand 66 states and 81 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 07:41:38,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:41:38,844 INFO L93 Difference]: Finished difference Result 102 states and 126 transitions. [2021-11-20 07:41:38,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:41:38,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2021-11-20 07:41:38,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:41:38,847 INFO L225 Difference]: With dead ends: 102 [2021-11-20 07:41:38,847 INFO L226 Difference]: Without dead ends: 64 [2021-11-20 07:41:38,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:41:38,850 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 5 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:41:38,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 425 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 5 Unchecked, 0.1s Time] [2021-11-20 07:41:38,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-20 07:41:38,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-11-20 07:41:38,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 07:41:38,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2021-11-20 07:41:38,860 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 26 [2021-11-20 07:41:38,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:41:38,861 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2021-11-20 07:41:38,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 07:41:38,862 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2021-11-20 07:41:38,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-20 07:41:38,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:41:38,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:41:38,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-20 07:41:39,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:41:39,068 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:41:39,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:41:39,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1514375320, now seen corresponding path program 1 times [2021-11-20 07:41:39,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:41:39,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206682300] [2021-11-20 07:41:39,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:41:39,070 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:41:39,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:41:39,072 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:41:39,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-20 07:41:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:39,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 07:41:39,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:41:40,076 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 29 treesize of output 27 [2021-11-20 07:41:42,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:41:42,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:41:43,856 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 31 treesize of output 29 [2021-11-20 07:41:44,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:41:44,983 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:41:44,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206682300] [2021-11-20 07:41:44,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206682300] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:41:44,983 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:41:44,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-20 07:41:44,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776822576] [2021-11-20 07:41:44,983 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:41:44,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 07:41:44,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:41:44,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 07:41:44,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:41:44,985 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 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) [2021-11-20 07:41:46,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:41:46,004 INFO L93 Difference]: Finished difference Result 64 states and 77 transitions. [2021-11-20 07:41:46,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:41:46,005 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 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 27 [2021-11-20 07:41:46,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:41:46,006 INFO L225 Difference]: With dead ends: 64 [2021-11-20 07:41:46,006 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 07:41:46,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-20 07:41:46,008 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:41:46,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 33 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 5 Unchecked, 0.3s Time] [2021-11-20 07:41:46,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 07:41:46,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 07:41:46,010 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) [2021-11-20 07:41:46,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 07:41:46,011 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2021-11-20 07:41:46,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:41:46,011 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:41:46,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 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) [2021-11-20 07:41:46,011 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:41:46,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 07:41:46,014 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:41:46,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-20 07:41:46,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:41:46,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 07:41:48,158 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 31) no Hoare annotation was computed. [2021-11-20 07:41:48,159 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 19 33) no Hoare annotation was computed. [2021-11-20 07:41:48,159 INFO L858 garLoopResultBuilder]: For program point fabs_doubleEXIT(lines 19 33) no Hoare annotation was computed. [2021-11-20 07:41:48,159 INFO L858 garLoopResultBuilder]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2021-11-20 07:41:48,159 INFO L861 garLoopResultBuilder]: At program point fabs_doubleENTRY(lines 19 33) the Hoare annotation is: true [2021-11-20 07:41:48,160 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-11-20 07:41:48,160 INFO L861 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: true [2021-11-20 07:41:48,160 INFO L858 garLoopResultBuilder]: For program point fabs_doubleFINAL(lines 19 33) no Hoare annotation was computed. [2021-11-20 07:41:48,169 INFO L861 garLoopResultBuilder]: At program point L97(line 97) the Hoare annotation is: true [2021-11-20 07:41:48,169 INFO L858 garLoopResultBuilder]: For program point L97-1(line 97) no Hoare annotation was computed. [2021-11-20 07:41:48,169 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 88) no Hoare annotation was computed. [2021-11-20 07:41:48,169 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 114) no Hoare annotation was computed. [2021-11-20 07:41:48,169 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 115) no Hoare annotation was computed. [2021-11-20 07:41:48,169 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2021-11-20 07:41:48,169 INFO L861 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: true [2021-11-20 07:41:48,170 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 76 89) no Hoare annotation was computed. [2021-11-20 07:41:48,170 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 113) no Hoare annotation was computed. [2021-11-20 07:41:48,170 INFO L858 garLoopResultBuilder]: For program point L107-2(lines 90 115) no Hoare annotation was computed. [2021-11-20 07:41:48,170 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 70 74) no Hoare annotation was computed. [2021-11-20 07:41:48,170 INFO L861 garLoopResultBuilder]: At program point L70-2(lines 70 74) the Hoare annotation is: true [2021-11-20 07:41:48,171 INFO L858 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2021-11-20 07:41:48,171 INFO L858 garLoopResultBuilder]: For program point L70-3(lines 70 74) no Hoare annotation was computed. [2021-11-20 07:41:48,171 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 105) no Hoare annotation was computed. [2021-11-20 07:41:48,171 INFO L858 garLoopResultBuilder]: For program point L132-2(line 132) no Hoare annotation was computed. [2021-11-20 07:41:48,171 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 133) no Hoare annotation was computed. [2021-11-20 07:41:48,172 INFO L858 garLoopResultBuilder]: For program point L91(lines 91 94) no Hoare annotation was computed. [2021-11-20 07:41:48,172 INFO L858 garLoopResultBuilder]: For program point L91-2(lines 91 94) no Hoare annotation was computed. [2021-11-20 07:41:48,172 INFO L858 garLoopResultBuilder]: For program point atan_doubleEXIT(lines 66 134) no Hoare annotation was computed. [2021-11-20 07:41:48,172 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2021-11-20 07:41:48,172 INFO L861 garLoopResultBuilder]: At program point atan_doubleENTRY(lines 66 134) the Hoare annotation is: true [2021-11-20 07:41:48,172 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 89) no Hoare annotation was computed. [2021-11-20 07:41:48,172 INFO L858 garLoopResultBuilder]: For program point atan_doubleFINAL(lines 66 134) no Hoare annotation was computed. [2021-11-20 07:41:48,172 INFO L858 garLoopResultBuilder]: For program point L217(lines 217 220) no Hoare annotation was computed. [2021-11-20 07:41:48,175 INFO L858 garLoopResultBuilder]: For program point L217-2(lines 215 220) no Hoare annotation was computed. [2021-11-20 07:41:48,176 INFO L861 garLoopResultBuilder]: At program point L267(lines 246 268) the Hoare annotation is: true [2021-11-20 07:41:48,177 INFO L858 garLoopResultBuilder]: For program point L201(line 201) no Hoare annotation was computed. [2021-11-20 07:41:48,177 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 07:41:48,177 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 209) no Hoare annotation was computed. [2021-11-20 07:41:48,177 INFO L858 garLoopResultBuilder]: For program point L185-1(lines 144 244) no Hoare annotation was computed. [2021-11-20 07:41:48,177 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 208) no Hoare annotation was computed. [2021-11-20 07:41:48,177 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-11-20 07:41:48,177 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 180) no Hoare annotation was computed. [2021-11-20 07:41:48,177 INFO L858 garLoopResultBuilder]: For program point L170-2(lines 144 244) no Hoare annotation was computed. [2021-11-20 07:41:48,177 INFO L854 garLoopResultBuilder]: At program point L220(line 220) the Hoare annotation is: false [2021-11-20 07:41:48,178 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 196) no Hoare annotation was computed. [2021-11-20 07:41:48,178 INFO L854 garLoopResultBuilder]: At program point L220-1(line 220) the Hoare annotation is: false [2021-11-20 07:41:48,178 INFO L858 garLoopResultBuilder]: For program point L220-2(line 220) no Hoare annotation was computed. [2021-11-20 07:41:48,178 INFO L858 garLoopResultBuilder]: For program point L171(lines 171 179) no Hoare annotation was computed. [2021-11-20 07:41:48,178 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 243) no Hoare annotation was computed. [2021-11-20 07:41:48,178 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-11-20 07:41:48,179 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-11-20 07:41:48,179 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-11-20 07:41:48,179 INFO L858 garLoopResultBuilder]: For program point L172-2(line 172) no Hoare annotation was computed. [2021-11-20 07:41:48,179 INFO L858 garLoopResultBuilder]: For program point L222(line 222) no Hoare annotation was computed. [2021-11-20 07:41:48,179 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 156 161) no Hoare annotation was computed. [2021-11-20 07:41:48,180 INFO L854 garLoopResultBuilder]: At program point L156-2(lines 156 161) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_19| (_ BitVec 64)) (|v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5|))) (let ((.cse1 (select .cse0 (_ bv4 32)))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_19|)) (_ +zero 11 53)) (= ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_19|) (select .cse0 (_ bv0 32))) (= .cse1 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_19|)) (= |ULTIMATE.start___ieee754_atan2_~ix~1#1| (bvand (_ bv2147483647 32) .cse1)))))) (= ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) ~tiny_atan2~0) (fp.lt |ULTIMATE.start___ieee754_atan2_~y#1| (_ +zero 11 53)) (= (bvor |ULTIMATE.start___ieee754_atan2_~ix~1#1| |ULTIMATE.start___ieee754_atan2_~lx~0#1|) (_ bv0 32)) (= ~pi_o_2~0 ((_ to_fp 11 53) currentRoundingMode (/ 785398163397448279.0 500000000000000000.0))) (exists ((|v_skolemized_q#valueAsBitvector_28| (_ BitVec 64))) (and (= |ULTIMATE.start___ieee754_atan2_~hx~1#1| ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_28|)) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_28|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_28|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_28|))))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-20 07:41:48,180 INFO L858 garLoopResultBuilder]: For program point L156-3(lines 156 161) no Hoare annotation was computed. [2021-11-20 07:41:48,180 INFO L858 garLoopResultBuilder]: For program point L239(line 239) no Hoare annotation was computed. [2021-11-20 07:41:48,180 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-20 07:41:48,180 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 07:41:48,180 INFO L858 garLoopResultBuilder]: For program point L256(lines 256 265) no Hoare annotation was computed. [2021-11-20 07:41:48,180 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-11-20 07:41:48,180 INFO L858 garLoopResultBuilder]: For program point L256-2(lines 256 265) no Hoare annotation was computed. [2021-11-20 07:41:48,180 INFO L858 garLoopResultBuilder]: For program point L224(line 224) no Hoare annotation was computed. [2021-11-20 07:41:48,181 INFO L858 garLoopResultBuilder]: For program point L241(line 241) no Hoare annotation was computed. [2021-11-20 07:41:48,181 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-20 07:41:48,181 INFO L858 garLoopResultBuilder]: For program point L192(line 192) no Hoare annotation was computed. [2021-11-20 07:41:48,181 INFO L858 garLoopResultBuilder]: For program point L226-1(lines 226 230) no Hoare annotation was computed. [2021-11-20 07:41:48,181 INFO L854 garLoopResultBuilder]: At program point L226-2(lines 226 230) the Hoare annotation is: false [2021-11-20 07:41:48,181 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 07:41:48,181 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-11-20 07:41:48,181 INFO L854 garLoopResultBuilder]: At program point L144(lines 144 244) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) ~tiny_atan2~0) (= ~pi_o_2~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 785398163397448279.0 500000000000000000.0))) (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start___ieee754_atan2_#res#1| (fp.sub roundNearestTiesToEven (fp.neg ~pi_o_2~0) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))))) [2021-11-20 07:41:48,181 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-20 07:41:48,181 INFO L858 garLoopResultBuilder]: For program point L261(lines 261 264) no Hoare annotation was computed. [2021-11-20 07:41:48,182 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-20 07:41:48,182 INFO L858 garLoopResultBuilder]: For program point L212-2(line 212) no Hoare annotation was computed. [2021-11-20 07:41:48,182 INFO L858 garLoopResultBuilder]: For program point L262(line 262) no Hoare annotation was computed. [2021-11-20 07:41:48,182 INFO L858 garLoopResultBuilder]: For program point L163(lines 163 165) no Hoare annotation was computed. [2021-11-20 07:41:48,182 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 07:41:48,182 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 262) no Hoare annotation was computed. [2021-11-20 07:41:48,182 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 236) no Hoare annotation was computed. [2021-11-20 07:41:48,182 INFO L858 garLoopResultBuilder]: For program point L198(lines 198 207) no Hoare annotation was computed. [2021-11-20 07:41:48,182 INFO L858 garLoopResultBuilder]: For program point L231-1(lines 224 237) no Hoare annotation was computed. [2021-11-20 07:41:48,183 INFO L858 garLoopResultBuilder]: For program point L231-2(lines 231 236) no Hoare annotation was computed. [2021-11-20 07:41:48,184 INFO L858 garLoopResultBuilder]: For program point L215(lines 215 220) no Hoare annotation was computed. [2021-11-20 07:41:48,184 INFO L858 garLoopResultBuilder]: For program point L149-1(lines 149 154) no Hoare annotation was computed. [2021-11-20 07:41:48,185 INFO L854 garLoopResultBuilder]: At program point L149-2(lines 149 154) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) ~tiny_atan2~0) (fp.lt |ULTIMATE.start___ieee754_atan2_~y#1| (_ +zero 11 53)) (= ~pi_o_2~0 ((_ to_fp 11 53) currentRoundingMode (/ 785398163397448279.0 500000000000000000.0))) (= (_ +zero 11 53) |ULTIMATE.start_main_~x~0#1|) (= currentRoundingMode roundNearestTiesToEven) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_atan2_~x#1|)) [2021-11-20 07:41:48,185 INFO L858 garLoopResultBuilder]: For program point L149-3(lines 149 154) no Hoare annotation was computed. [2021-11-20 07:41:48,185 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-11-20 07:41:48,185 INFO L858 garLoopResultBuilder]: For program point L166(lines 166 167) no Hoare annotation was computed. [2021-11-20 07:41:48,185 INFO L858 garLoopResultBuilder]: For program point L183(line 183) no Hoare annotation was computed. [2021-11-20 07:41:48,185 INFO L858 garLoopResultBuilder]: For program point L183-2(line 183) no Hoare annotation was computed. [2021-11-20 07:41:48,185 INFO L854 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: false [2021-11-20 07:41:48,185 INFO L858 garLoopResultBuilder]: For program point L167-1(line 167) no Hoare annotation was computed. [2021-11-20 07:41:48,189 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:41:48,190 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:41:48,201 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,210 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,219 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,219 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,219 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,220 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,220 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-20 07:41:48,220 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-20 07:41:48,221 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,221 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-20 07:41:48,221 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,222 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,222 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,222 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,222 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,227 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,227 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,227 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-20 07:41:48,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-20 07:41:48,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-20 07:41:48,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,230 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,230 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,233 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,234 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,234 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,234 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,235 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,235 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,235 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,236 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:41:48 BoogieIcfgContainer [2021-11-20 07:41:48,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:41:48,238 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:41:48,238 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:41:48,238 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:41:48,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:36:58" (3/4) ... [2021-11-20 07:41:48,242 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 07:41:48,250 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2021-11-20 07:41:48,250 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_double [2021-11-20 07:41:48,262 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2021-11-20 07:41:48,263 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-20 07:41:48,264 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-20 07:41:48,265 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 07:41:48,293 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists v_skolemized_q#valueAsBitvector_19 : bv64, v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5 : bv32 :: ((~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_19[63:63], v_skolemized_q#valueAsBitvector_19[62:52], v_skolemized_q#valueAsBitvector_19[51:0]) == ~Pluszero~LONGDOUBLE() && v_skolemized_q#valueAsBitvector_19[31:0] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5][0bv32]) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5][4bv32] == v_skolemized_q#valueAsBitvector_19[63:32]) && ix == ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5][4bv32])) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2) && ~fp.lt~DOUBLE(y, ~Pluszero~LONGDOUBLE())) && ~bvor32(ix, lx) == 0bv32) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/500000000000000000)) && (\exists v_skolemized_q#valueAsBitvector_28 : bv64 :: hx == v_skolemized_q#valueAsBitvector_28[63:32] && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_28[63:63], v_skolemized_q#valueAsBitvector_28[62:52], v_skolemized_q#valueAsBitvector_28[51:0]))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-20 07:41:48,294 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && pi_o_2 == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 785398163397448279/500000000000000000)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(pi_o_2), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000)) [2021-11-20 07:41:48,357 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:41:48,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:41:48,358 INFO L158 Benchmark]: Toolchain (without parser) took 312606.53ms. Allocated memory is still 71.3MB. Free memory was 52.5MB in the beginning and 34.9MB in the end (delta: 17.6MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2021-11-20 07:41:48,358 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 71.3MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:41:48,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 554.44ms. Allocated memory is still 71.3MB. Free memory was 52.3MB in the beginning and 36.4MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-20 07:41:48,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.03ms. Allocated memory is still 71.3MB. Free memory was 36.4MB in the beginning and 34.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:41:48,360 INFO L158 Benchmark]: Boogie Preprocessor took 109.60ms. Allocated memory is still 71.3MB. Free memory was 34.0MB in the beginning and 52.3MB in the end (delta: -18.4MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2021-11-20 07:41:48,365 INFO L158 Benchmark]: RCFGBuilder took 21807.40ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 50.3MB in the end (delta: 1.7MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2021-11-20 07:41:48,365 INFO L158 Benchmark]: TraceAbstraction took 289920.21ms. Allocated memory is still 71.3MB. Free memory was 49.7MB in the beginning and 43.3MB in the end (delta: 6.4MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2021-11-20 07:41:48,367 INFO L158 Benchmark]: Witness Printer took 119.50ms. Allocated memory is still 71.3MB. Free memory was 43.3MB in the beginning and 34.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:41:48,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 71.3MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 554.44ms. Allocated memory is still 71.3MB. Free memory was 52.3MB in the beginning and 36.4MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.03ms. Allocated memory is still 71.3MB. Free memory was 36.4MB in the beginning and 34.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.60ms. Allocated memory is still 71.3MB. Free memory was 34.0MB in the beginning and 52.3MB in the end (delta: -18.4MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * RCFGBuilder took 21807.40ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 50.3MB in the end (delta: 1.7MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * TraceAbstraction took 289920.21ms. Allocated memory is still 71.3MB. Free memory was 49.7MB in the beginning and 43.3MB in the end (delta: 6.4MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * Witness Printer took 119.50ms. Allocated memory is still 71.3MB. Free memory was 43.3MB in the beginning and 34.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 262]: 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 3 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 289.8s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 142.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 36 mSolverCounterUnknown, 453 SdHoareTripleChecker+Valid, 122.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 440 mSDsluCounter, 6237 SdHoareTripleChecker+Invalid, 116.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 251 IncrementalHoareTripleChecker+Unchecked, 5025 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 295 IncrementalHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 1212 mSDtfsCounter, 295 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 503 GetRequests, 383 SyntacticMatches, 3 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 101.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=0, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 54 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 58 PreInvPairs, 62 NumberOfFragments, 130 HoareAnnotationTreeSize, 58 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 4.8s SatisfiabilityAnalysisTime, 136.3s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 478 ConstructedInterpolants, 141 QuantifiedInterpolants, 4542 SizeOfPredicates, 100 NumberOfNonLiveVariables, 1759 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 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: 149]: Loop Invariant [2021-11-20 07:41:48,406 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,407 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && ~fp.lt~DOUBLE(y, ~Pluszero~LONGDOUBLE())) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/500000000000000000)) && ~Pluszero~LONGDOUBLE() == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 156]: Loop Invariant [2021-11-20 07:41:48,408 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,408 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,408 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-20 07:41:48,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-20 07:41:48,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-20 07:41:48,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,411 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,411 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-20 07:41:48,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-20 07:41:48,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-11-20 07:41:48,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5,QUANTIFIED] [2021-11-20 07:41:48,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_28,QUANTIFIED] [2021-11-20 07:41:48,419 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((\exists v_skolemized_q#valueAsBitvector_19 : bv64, v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5 : bv32 :: ((~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_19[63:63], v_skolemized_q#valueAsBitvector_19[62:52], v_skolemized_q#valueAsBitvector_19[51:0]) == ~Pluszero~LONGDOUBLE() && v_skolemized_q#valueAsBitvector_19[31:0] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5][0bv32]) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5][4bv32] == v_skolemized_q#valueAsBitvector_19[63:32]) && ix == ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0#1.base_5][4bv32])) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2) && ~fp.lt~DOUBLE(y, ~Pluszero~LONGDOUBLE())) && ~bvor32(ix, lx) == 0bv32) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/500000000000000000)) && (\exists v_skolemized_q#valueAsBitvector_28 : bv64 :: hx == v_skolemized_q#valueAsBitvector_28[63:32] && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_28[63:63], v_skolemized_q#valueAsBitvector_28[62:52], v_skolemized_q#valueAsBitvector_28[51:0]))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 144]: Loop Invariant [2021-11-20 07:41:48,423 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,423 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,423 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,423 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,424 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,436 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,437 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:41:48,437 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 && pi_o_2 == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 785398163397448279/500000000000000000)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(pi_o_2), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000)) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 246]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-20 07:41:48,660 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-20 07:41:48,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0d5312-3411-4fed-bb59-eabfbe9f32a7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE