./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 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/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_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G --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-7e70bad [2021-11-23 12:32:42,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:32:42,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:32:42,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:32:42,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:32:42,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:32:42,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:32:42,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:32:42,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:32:42,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:32:42,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:32:42,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:32:42,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:32:42,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:32:42,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:32:42,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:32:42,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:32:42,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:32:42,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:32:42,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:32:42,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:32:42,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:32:42,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:32:42,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:32:42,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:32:42,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:32:42,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:32:42,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:32:42,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:32:42,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:32:42,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:32:42,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:32:42,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:32:42,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:32:42,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:32:42,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:32:42,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:32:42,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:32:42,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:32:42,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:32:42,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:32:42,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 12:32:43,022 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:32:43,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:32:43,023 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:32:43,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:32:43,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:32:43,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:32:43,034 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:32:43,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:32:43,034 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:32:43,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:32:43,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:32:43,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:32:43,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:32:43,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:32:43,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:32:43,037 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:32:43,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:32:43,037 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:32:43,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:32:43,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:32:43,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:32:43,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:32:43,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:32:43,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:32:43,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:32:43,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:32:43,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:32:43,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 12:32:43,041 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:32:43,042 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:32:43,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:32:43,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:32:43,043 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_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0581f7e65f7fbcebfedbe5af78720fafbc68f000cf762482d99878eadfaec4df [2021-11-23 12:32:43,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:32:43,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:32:43,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:32:43,446 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:32:43,447 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:32:43,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/float-newlib/double_req_bl_0662b.c [2021-11-23 12:32:43,552 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/data/56b815bd9/f993faad8c68442c8b771103a4c47614/FLAG98febaa91 [2021-11-23 12:32:44,242 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:32:44,243 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c [2021-11-23 12:32:44,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/data/56b815bd9/f993faad8c68442c8b771103a4c47614/FLAG98febaa91 [2021-11-23 12:32:44,570 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/data/56b815bd9/f993faad8c68442c8b771103a4c47614 [2021-11-23 12:32:44,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:32:44,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:32:44,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:32:44,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:32:44,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:32:44,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:32:44" (1/1) ... [2021-11-23 12:32:44,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ecee21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:44, skipping insertion in model container [2021-11-23 12:32:44,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:32:44" (1/1) ... [2021-11-23 12:32:44,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:32:44,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:32:44,918 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_032778d8-370a-4a19-bdf1-2fb609be8f23/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c[6224,6237] [2021-11-23 12:32:44,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:32:44,936 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:32:45,002 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_032778d8-370a-4a19-bdf1-2fb609be8f23/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c[6224,6237] [2021-11-23 12:32:45,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:32:45,045 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:32:45,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:45 WrapperNode [2021-11-23 12:32:45,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:32:45,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:32:45,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:32:45,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:32:45,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:45" (1/1) ... [2021-11-23 12:32:45,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:45" (1/1) ... [2021-11-23 12:32:45,127 INFO L137 Inliner]: procedures = 19, calls = 87, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 526 [2021-11-23 12:32:45,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:32:45,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:32:45,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:32:45,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:32:45,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:45" (1/1) ... [2021-11-23 12:32:45,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:45" (1/1) ... [2021-11-23 12:32:45,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:45" (1/1) ... [2021-11-23 12:32:45,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:45" (1/1) ... [2021-11-23 12:32:45,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:45" (1/1) ... [2021-11-23 12:32:45,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:45" (1/1) ... [2021-11-23 12:32:45,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:45" (1/1) ... [2021-11-23 12:32:45,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:32:45,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:32:45,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:32:45,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:32:45,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:45" (1/1) ... [2021-11-23 12:32:45,224 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:32:45,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:32:45,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:32:45,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:32:45,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:32:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 12:32:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 12:32:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 12:32:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 12:32:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 12:32:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:32:45,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:32:45,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 12:32:45,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-23 12:32:45,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 12:32:45,423 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:32:45,433 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:32:46,268 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:32:46,278 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:32:46,281 INFO L301 CfgBuilder]: Removed 28 assume(true) statements. [2021-11-23 12:32:46,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:46 BoogieIcfgContainer [2021-11-23 12:32:46,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:32:46,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:32:46,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:32:46,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:32:46,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:32:44" (1/3) ... [2021-11-23 12:32:46,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2a3042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:32:46, skipping insertion in model container [2021-11-23 12:32:46,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:45" (2/3) ... [2021-11-23 12:32:46,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2a3042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:32:46, skipping insertion in model container [2021-11-23 12:32:46,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:46" (3/3) ... [2021-11-23 12:32:46,300 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b.c [2021-11-23 12:32:46,311 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:32:46,311 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 12:32:46,395 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:32:46,409 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 [2021-11-23 12:32:46,410 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 12:32:46,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 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) [2021-11-23 12:32:46,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 12:32:46,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:32:46,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:32:46,465 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:32:46,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:32:46,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1059427896, now seen corresponding path program 1 times [2021-11-23 12:32:46,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:32:46,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292222698] [2021-11-23 12:32:46,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:32:46,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:32:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:32:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:32:46,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:32:46,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292222698] [2021-11-23 12:32:46,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292222698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:32:46,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:32:46,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:32:46,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871366986] [2021-11-23 12:32:46,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:32:46,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 12:32:46,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:32:46,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 12:32:46,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:32:46,817 INFO L87 Difference]: Start difference. First operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:32:46,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:32:46,868 INFO L93 Difference]: Finished difference Result 227 states and 382 transitions. [2021-11-23 12:32:46,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 12:32:46,871 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 [2021-11-23 12:32:46,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:32:46,886 INFO L225 Difference]: With dead ends: 227 [2021-11-23 12:32:46,887 INFO L226 Difference]: Without dead ends: 111 [2021-11-23 12:32:46,892 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 [2021-11-23 12:32:46,901 INFO L933 BasicCegarLoop]: 164 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, 164 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 [2021-11-23 12:32:46,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:32:46,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-23 12:32:46,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-23 12:32:46,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 110 states have internal predecessors, (159), 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) [2021-11-23 12:32:46,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2021-11-23 12:32:46,954 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 11 [2021-11-23 12:32:46,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:32:46,955 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2021-11-23 12:32:46,955 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) [2021-11-23 12:32:46,956 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2021-11-23 12:32:46,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 12:32:46,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:32:46,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:32:46,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 12:32:46,958 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:32:46,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:32:46,959 INFO L85 PathProgramCache]: Analyzing trace with hash -7417919, now seen corresponding path program 1 times [2021-11-23 12:32:46,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:32:46,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288229696] [2021-11-23 12:32:46,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:32:46,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:32:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:32:47,051 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:32:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:32:47,190 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:32:47,190 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 12:32:47,203 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 12:32:47,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 12:32:47,210 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 12:32:47,214 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 12:32:47,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:32:47 BoogieIcfgContainer [2021-11-23 12:32:47,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 12:32:47,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 12:32:47,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 12:32:47,303 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 12:32:47,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:32:46" (3/4) ... [2021-11-23 12:32:47,307 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 12:32:47,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 12:32:47,310 INFO L158 Benchmark]: Toolchain (without parser) took 2733.58ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 59.7MB in the beginning and 76.2MB in the end (delta: -16.5MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2021-11-23 12:32:47,311 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 73.4MB. Free memory was 36.1MB in the beginning and 36.0MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:32:47,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.60ms. Allocated memory is still 90.2MB. Free memory was 59.7MB in the beginning and 62.2MB in the end (delta: -2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 12:32:47,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.84ms. Allocated memory is still 90.2MB. Free memory was 62.2MB in the beginning and 58.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 12:32:47,320 INFO L158 Benchmark]: Boogie Preprocessor took 66.72ms. Allocated memory is still 90.2MB. Free memory was 58.7MB in the beginning and 55.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 12:32:47,321 INFO L158 Benchmark]: RCFGBuilder took 1088.39ms. Allocated memory is still 90.2MB. Free memory was 55.6MB in the beginning and 57.1MB in the end (delta: -1.5MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2021-11-23 12:32:47,322 INFO L158 Benchmark]: TraceAbstraction took 1012.27ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 56.7MB in the beginning and 76.2MB in the end (delta: -19.5MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2021-11-23 12:32:47,323 INFO L158 Benchmark]: Witness Printer took 8.63ms. Allocated memory is still 113.2MB. Free memory is still 76.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:32:47,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 73.4MB. Free memory was 36.1MB in the beginning and 36.0MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.60ms. Allocated memory is still 90.2MB. Free memory was 59.7MB in the beginning and 62.2MB in the end (delta: -2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.84ms. Allocated memory is still 90.2MB. Free memory was 62.2MB in the beginning and 58.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.72ms. Allocated memory is still 90.2MB. Free memory was 58.7MB in the beginning and 55.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1088.39ms. Allocated memory is still 90.2MB. Free memory was 55.6MB in the beginning and 57.1MB in the end (delta: -1.5MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1012.27ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 56.7MB in the beginning and 76.2MB in the end (delta: -19.5MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. * Witness Printer took 8.63ms. Allocated memory is still 113.2MB. Free memory is still 76.2MB. 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)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, 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)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, 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)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, 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)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 164 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, 164 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=115occurred 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 [2021-11-23 12:32:47,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/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_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/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_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G --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-7e70bad [2021-11-23 12:32:50,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:32:50,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:32:50,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:32:50,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:32:50,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:32:50,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:32:50,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:32:50,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:32:50,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:32:50,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:32:50,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:32:50,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:32:50,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:32:50,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:32:50,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:32:50,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:32:50,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:32:50,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:32:50,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:32:50,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:32:50,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:32:50,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:32:50,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:32:50,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:32:50,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:32:50,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:32:50,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:32:50,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:32:50,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:32:50,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:32:50,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:32:50,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:32:50,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:32:50,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:32:50,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:32:50,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:32:50,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:32:50,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:32:50,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:32:50,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:32:50,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-23 12:32:50,543 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:32:50,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:32:50,545 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:32:50,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:32:50,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:32:50,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:32:50,548 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:32:50,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:32:50,550 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:32:50,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:32:50,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:32:50,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:32:50,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:32:50,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:32:50,553 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 12:32:50,553 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 12:32:50,553 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 12:32:50,553 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:32:50,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:32:50,554 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:32:50,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:32:50,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:32:50,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:32:50,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:32:50,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:32:50,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:32:50,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:32:50,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:32:50,557 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-23 12:32:50,557 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 12:32:50,557 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:32:50,558 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:32:50,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:32:50,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:32:50,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 12:32:50,559 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_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0581f7e65f7fbcebfedbe5af78720fafbc68f000cf762482d99878eadfaec4df [2021-11-23 12:32:51,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:32:51,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:32:51,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:32:51,091 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:32:51,092 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:32:51,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/float-newlib/double_req_bl_0662b.c [2021-11-23 12:32:51,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/data/955cd5070/520a9f0e60484006b14d3dc4c5ac4a38/FLAG10b43edc5 [2021-11-23 12:32:51,831 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:32:51,835 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c [2021-11-23 12:32:51,851 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/data/955cd5070/520a9f0e60484006b14d3dc4c5ac4a38/FLAG10b43edc5 [2021-11-23 12:32:52,121 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/data/955cd5070/520a9f0e60484006b14d3dc4c5ac4a38 [2021-11-23 12:32:52,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:32:52,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:32:52,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:32:52,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:32:52,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:32:52,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:32:52" (1/1) ... [2021-11-23 12:32:52,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1226afcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:52, skipping insertion in model container [2021-11-23 12:32:52,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:32:52" (1/1) ... [2021-11-23 12:32:52,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:32:52,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:32:52,442 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_032778d8-370a-4a19-bdf1-2fb609be8f23/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c[6224,6237] [2021-11-23 12:32:52,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:32:52,489 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:32:52,629 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_032778d8-370a-4a19-bdf1-2fb609be8f23/sv-benchmarks/c/float-newlib/double_req_bl_0662b.c[6224,6237] [2021-11-23 12:32:52,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:32:52,679 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:32:52,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:52 WrapperNode [2021-11-23 12:32:52,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:32:52,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:32:52,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:32:52,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:32:52,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:52" (1/1) ... [2021-11-23 12:32:52,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:52" (1/1) ... [2021-11-23 12:32:52,780 INFO L137 Inliner]: procedures = 22, calls = 87, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 527 [2021-11-23 12:32:52,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:32:52,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:32:52,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:32:52,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:32:52,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:52" (1/1) ... [2021-11-23 12:32:52,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:52" (1/1) ... [2021-11-23 12:32:52,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:52" (1/1) ... [2021-11-23 12:32:52,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:52" (1/1) ... [2021-11-23 12:32:52,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:52" (1/1) ... [2021-11-23 12:32:52,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:52" (1/1) ... [2021-11-23 12:32:52,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:52" (1/1) ... [2021-11-23 12:32:52,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:32:52,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:32:52,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:32:52,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:32:52,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:52" (1/1) ... [2021-11-23 12:32:52,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:32:52,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:32:52,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:32:52,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:32:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:32:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-23 12:32:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-23 12:32:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 12:32:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 12:32:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-23 12:32:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 12:32:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:32:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:32:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 12:32:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 12:32:53,107 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:32:53,110 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:33:33,720 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:33:33,732 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:33:33,732 INFO L301 CfgBuilder]: Removed 28 assume(true) statements. [2021-11-23 12:33:33,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:33:33 BoogieIcfgContainer [2021-11-23 12:33:33,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:33:33,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:33:33,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:33:33,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:33:33,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:32:52" (1/3) ... [2021-11-23 12:33:33,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac4c81a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:33:33, skipping insertion in model container [2021-11-23 12:33:33,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:32:52" (2/3) ... [2021-11-23 12:33:33,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac4c81a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:33:33, skipping insertion in model container [2021-11-23 12:33:33,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:33:33" (3/3) ... [2021-11-23 12:33:33,746 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b.c [2021-11-23 12:33:33,753 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:33:33,753 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 12:33:33,814 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:33:33,822 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 [2021-11-23 12:33:33,823 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 12:33:33,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 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) [2021-11-23 12:33:33,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 12:33:33,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:33,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:33,847 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:33:33,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:33,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1059427896, now seen corresponding path program 1 times [2021-11-23 12:33:33,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 12:33:33,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285766530] [2021-11-23 12:33:33,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:33,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 12:33:33,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 12:33:33,877 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 12:33:33,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 12:33:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:34,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 12:33:34,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:33:34,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:34,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:33:34,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:34,868 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 12:33:34,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285766530] [2021-11-23 12:33:34,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285766530] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 12:33:34,870 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:33:34,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 12:33:34,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657545743] [2021-11-23 12:33:34,874 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 12:33:34,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 12:33:34,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 12:33:34,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 12:33:34,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:33:34,915 INFO L87 Difference]: Start difference. First operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:33:34,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:33:34,951 INFO L93 Difference]: Finished difference Result 227 states and 382 transitions. [2021-11-23 12:33:34,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 12:33:34,953 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 [2021-11-23 12:33:34,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:33:34,966 INFO L225 Difference]: With dead ends: 227 [2021-11-23 12:33:34,966 INFO L226 Difference]: Without dead ends: 111 [2021-11-23 12:33:34,970 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 [2021-11-23 12:33:34,974 INFO L933 BasicCegarLoop]: 164 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, 164 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 [2021-11-23 12:33:34,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:33:34,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-23 12:33:35,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-23 12:33:35,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 110 states have internal predecessors, (159), 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) [2021-11-23 12:33:35,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2021-11-23 12:33:35,034 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 11 [2021-11-23 12:33:35,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:33:35,035 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2021-11-23 12:33:35,036 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) [2021-11-23 12:33:35,036 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2021-11-23 12:33:35,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 12:33:35,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:33:35,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:33:35,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 12:33:35,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 12:33:35,257 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:33:35,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:33:35,258 INFO L85 PathProgramCache]: Analyzing trace with hash -7417919, now seen corresponding path program 1 times [2021-11-23 12:33:35,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 12:33:35,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580724219] [2021-11-23 12:33:35,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:33:35,260 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 12:33:35,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 12:33:35,262 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 12:33:35,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032778d8-370a-4a19-bdf1-2fb609be8f23/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 12:33:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:33:35,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 12:33:35,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:33:36,510 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 [2021-11-23 12:33:39,973 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 12:33:39,974 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 [2021-11-23 12:33:40,333 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 [2021-11-23 12:33:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:33:44,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:33:49,205 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 12:33:49,206 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 [2021-11-23 12:33:49,400 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 12:33:49,400 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 [2021-11-23 12:33:49,818 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 15 treesize of output 11