./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 880ea7a6e3bf15e1c28bd78f5267ea1e88339658 .................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 880ea7a6e3bf15e1c28bd78f5267ea1e88339658 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 08:43:42,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 08:43:42,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 08:43:42,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 08:43:42,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 08:43:42,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 08:43:42,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 08:43:42,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 08:43:42,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 08:43:42,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 08:43:42,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 08:43:42,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 08:43:42,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 08:43:42,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 08:43:42,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 08:43:42,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 08:43:42,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 08:43:42,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 08:43:42,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 08:43:42,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 08:43:42,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 08:43:42,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 08:43:42,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 08:43:42,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 08:43:42,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 08:43:42,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 08:43:42,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 08:43:42,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 08:43:42,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 08:43:42,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 08:43:42,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 08:43:42,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 08:43:42,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 08:43:42,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 08:43:42,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 08:43:42,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 08:43:42,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 08:43:42,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 08:43:42,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 08:43:42,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 08:43:42,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 08:43:42,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 08:43:42,927 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 08:43:42,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 08:43:42,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 08:43:42,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 08:43:42,930 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 08:43:42,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 08:43:42,930 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 08:43:42,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 08:43:42,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 08:43:42,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 08:43:42,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 08:43:42,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 08:43:42,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 08:43:42,932 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 08:43:42,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 08:43:42,933 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 08:43:42,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 08:43:42,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 08:43:42,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 08:43:42,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 08:43:42,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 08:43:42,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 08:43:42,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 08:43:42,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 08:43:42,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 08:43:42,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 08:43:42,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 08:43:42,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 08:43:42,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer 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(__VERIFIER_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 -> 880ea7a6e3bf15e1c28bd78f5267ea1e88339658 [2019-11-20 08:43:43,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 08:43:43,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 08:43:43,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 08:43:43,114 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 08:43:43,114 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 08:43:43,114 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2019-11-20 08:43:43,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/data/724ffcad0/bcc7cfd8a7594ca6a9a8995150e02de3/FLAG43542bd5c [2019-11-20 08:43:43,577 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 08:43:43,578 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2019-11-20 08:43:43,586 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/data/724ffcad0/bcc7cfd8a7594ca6a9a8995150e02de3/FLAG43542bd5c [2019-11-20 08:43:43,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/data/724ffcad0/bcc7cfd8a7594ca6a9a8995150e02de3 [2019-11-20 08:43:43,950 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 08:43:43,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 08:43:43,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 08:43:43,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 08:43:43,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 08:43:43,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:43:43" (1/1) ... [2019-11-20 08:43:43,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c76bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:43, skipping insertion in model container [2019-11-20 08:43:43,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:43:43" (1/1) ... [2019-11-20 08:43:43,966 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 08:43:44,002 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 08:43:44,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:43:44,338 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 08:43:44,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:43:44,406 INFO L192 MainTranslator]: Completed translation [2019-11-20 08:43:44,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:44 WrapperNode [2019-11-20 08:43:44,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 08:43:44,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 08:43:44,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 08:43:44,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 08:43:44,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:44" (1/1) ... [2019-11-20 08:43:44,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:44" (1/1) ... [2019-11-20 08:43:44,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 08:43:44,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 08:43:44,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 08:43:44,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 08:43:44,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:44" (1/1) ... [2019-11-20 08:43:44,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:44" (1/1) ... [2019-11-20 08:43:44,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:44" (1/1) ... [2019-11-20 08:43:44,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:44" (1/1) ... [2019-11-20 08:43:44,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:44" (1/1) ... [2019-11-20 08:43:44,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:44" (1/1) ... [2019-11-20 08:43:44,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:44" (1/1) ... [2019-11-20 08:43:44,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 08:43:44,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 08:43:44,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 08:43:44,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 08:43:44,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 08:43:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 08:43:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 08:43:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 08:43:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 08:43:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 08:43:44,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 08:43:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 08:43:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-20 08:43:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 08:43:44,990 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 08:43:44,990 INFO L285 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-20 08:43:44,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:43:44 BoogieIcfgContainer [2019-11-20 08:43:44,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 08:43:44,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 08:43:44,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 08:43:44,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 08:43:44,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:43:43" (1/3) ... [2019-11-20 08:43:44,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be750fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:43:44, skipping insertion in model container [2019-11-20 08:43:45,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:44" (2/3) ... [2019-11-20 08:43:45,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be750fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:43:45, skipping insertion in model container [2019-11-20 08:43:45,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:43:44" (3/3) ... [2019-11-20 08:43:45,001 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2019-11-20 08:43:45,008 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 08:43:45,013 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 08:43:45,021 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 08:43:45,041 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 08:43:45,041 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 08:43:45,041 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 08:43:45,041 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 08:43:45,041 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 08:43:45,041 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 08:43:45,042 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 08:43:45,042 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 08:43:45,054 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2019-11-20 08:43:45,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 08:43:45,058 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:43:45,059 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:43:45,059 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:43:45,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:43:45,063 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2019-11-20 08:43:45,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:43:45,070 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670217693] [2019-11-20 08:43:45,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:43:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:43:45,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:43:45,191 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670217693] [2019-11-20 08:43:45,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:43:45,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 08:43:45,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142182130] [2019-11-20 08:43:45,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 08:43:45,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 08:43:45,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 08:43:45,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 08:43:45,207 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2019-11-20 08:43:45,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:43:45,225 INFO L93 Difference]: Finished difference Result 79 states and 128 transitions. [2019-11-20 08:43:45,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 08:43:45,226 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 08:43:45,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 08:43:45,235 INFO L225 Difference]: With dead ends: 79 [2019-11-20 08:43:45,235 INFO L226 Difference]: Without dead ends: 37 [2019-11-20 08:43:45,238 INFO L630 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 [2019-11-20 08:43:45,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-20 08:43:45,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-20 08:43:45,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-20 08:43:45,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2019-11-20 08:43:45,267 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2019-11-20 08:43:45,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 08:43:45,268 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2019-11-20 08:43:45,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 08:43:45,268 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2019-11-20 08:43:45,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 08:43:45,269 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:43:45,269 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:43:45,270 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:43:45,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:43:45,270 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2019-11-20 08:43:45,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:43:45,271 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688688950] [2019-11-20 08:43:45,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:43:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:43:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:43:45,412 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:43:45,412 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 08:43:45,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:43:45 BoogieIcfgContainer [2019-11-20 08:43:45,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 08:43:45,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 08:43:45,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 08:43:45,479 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 08:43:45,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:43:44" (3/4) ... [2019-11-20 08:43:45,483 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 08:43:45,484 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 08:43:45,486 INFO L168 Benchmark]: Toolchain (without parser) took 1533.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -107.3 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2019-11-20 08:43:45,486 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:43:45,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 08:43:45,489 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-20 08:43:45,489 INFO L168 Benchmark]: Boogie Preprocessor took 34.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:43:45,490 INFO L168 Benchmark]: RCFGBuilder took 502.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. [2019-11-20 08:43:45,491 INFO L168 Benchmark]: TraceAbstraction took 484.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2019-11-20 08:43:45,491 INFO L168 Benchmark]: Witness Printer took 5.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:43:45,500 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 454.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 502.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 484.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 145]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 71, overapproximation of someBinaryDOUBLEComparisonOperation at line 144. Possible FailurePath: [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L137] double x = __VERIFIER_nondet_double(); [L139] COND TRUE x == 0.0 || x == -0.0 [L45] double y, hi, lo, c, t; [L46] __int32_t k = 0, xsb; [L47] __uint32_t hx; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L50] ieee_double_shape_type gh_u; [L51] gh_u.value = (x) [L52] EXPR gh_u.parts.msw [L52] (hx) = gh_u.parts.msw [L54] xsb = (hx >> 31) & 1 [L55] hx &= 0x7fffffff VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L57] COND TRUE hx >= 0x40862E42 VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L58] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L70] COND TRUE x > o_threshold_exp [L71] return huge_exp * huge_exp; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L141] double res = __ieee754_exp(x); [L144] COND TRUE res != 1.0 VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L145] __VERIFIER_error() VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, 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=41occurred in iteration=0, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 08:43:47,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 08:43:47,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 08:43:47,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 08:43:47,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 08:43:47,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 08:43:47,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 08:43:47,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 08:43:47,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 08:43:47,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 08:43:47,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 08:43:47,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 08:43:47,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 08:43:47,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 08:43:47,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 08:43:47,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 08:43:47,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 08:43:47,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 08:43:47,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 08:43:47,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 08:43:47,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 08:43:47,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 08:43:47,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 08:43:47,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 08:43:47,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 08:43:47,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 08:43:47,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 08:43:47,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 08:43:47,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 08:43:47,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 08:43:47,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 08:43:47,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 08:43:47,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 08:43:47,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 08:43:47,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 08:43:47,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 08:43:47,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 08:43:47,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 08:43:47,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 08:43:47,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 08:43:47,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 08:43:47,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 08:43:47,430 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 08:43:47,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 08:43:47,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 08:43:47,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 08:43:47,432 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 08:43:47,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 08:43:47,432 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 08:43:47,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 08:43:47,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 08:43:47,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 08:43:47,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 08:43:47,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 08:43:47,434 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 08:43:47,434 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 08:43:47,434 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 08:43:47,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 08:43:47,435 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 08:43:47,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 08:43:47,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 08:43:47,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 08:43:47,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 08:43:47,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 08:43:47,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 08:43:47,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 08:43:47,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 08:43:47,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 08:43:47,437 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 08:43:47,437 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 08:43:47,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 08:43:47,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 08:43:47,438 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer 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(__VERIFIER_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 -> 880ea7a6e3bf15e1c28bd78f5267ea1e88339658 [2019-11-20 08:43:47,772 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 08:43:47,783 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 08:43:47,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 08:43:47,787 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 08:43:47,788 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 08:43:47,788 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2019-11-20 08:43:47,837 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/data/651816191/debe7f2908e24f9584b7cd0ae9fa2672/FLAG005297f63 [2019-11-20 08:43:48,217 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 08:43:48,218 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2019-11-20 08:43:48,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/data/651816191/debe7f2908e24f9584b7cd0ae9fa2672/FLAG005297f63 [2019-11-20 08:43:48,564 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/data/651816191/debe7f2908e24f9584b7cd0ae9fa2672 [2019-11-20 08:43:48,567 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 08:43:48,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 08:43:48,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 08:43:48,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 08:43:48,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 08:43:48,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:43:48" (1/1) ... [2019-11-20 08:43:48,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49a0f1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:48, skipping insertion in model container [2019-11-20 08:43:48,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:43:48" (1/1) ... [2019-11-20 08:43:48,585 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 08:43:48,615 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 08:43:48,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:43:48,836 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 08:43:48,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:43:48,978 INFO L192 MainTranslator]: Completed translation [2019-11-20 08:43:48,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:48 WrapperNode [2019-11-20 08:43:48,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 08:43:48,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 08:43:48,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 08:43:48,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 08:43:48,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:48" (1/1) ... [2019-11-20 08:43:48,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:48" (1/1) ... [2019-11-20 08:43:49,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 08:43:49,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 08:43:49,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 08:43:49,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 08:43:49,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:48" (1/1) ... [2019-11-20 08:43:49,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:48" (1/1) ... [2019-11-20 08:43:49,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:48" (1/1) ... [2019-11-20 08:43:49,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:48" (1/1) ... [2019-11-20 08:43:49,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:48" (1/1) ... [2019-11-20 08:43:49,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:48" (1/1) ... [2019-11-20 08:43:49,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:48" (1/1) ... [2019-11-20 08:43:49,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 08:43:49,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 08:43:49,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 08:43:49,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 08:43:49,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 08:43:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-20 08:43:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-20 08:43:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 08:43:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-20 08:43:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 08:43:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 08:43:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 08:43:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 08:43:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 08:44:01,189 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 08:44:01,190 INFO L285 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-20 08:44:01,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:44:01 BoogieIcfgContainer [2019-11-20 08:44:01,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 08:44:01,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 08:44:01,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 08:44:01,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 08:44:01,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:43:48" (1/3) ... [2019-11-20 08:44:01,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a421f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:44:01, skipping insertion in model container [2019-11-20 08:44:01,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:43:48" (2/3) ... [2019-11-20 08:44:01,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a421f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:44:01, skipping insertion in model container [2019-11-20 08:44:01,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:44:01" (3/3) ... [2019-11-20 08:44:01,198 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2019-11-20 08:44:01,204 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 08:44:01,210 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 08:44:01,220 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 08:44:01,242 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 08:44:01,242 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 08:44:01,242 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 08:44:01,243 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 08:44:01,243 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 08:44:01,243 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 08:44:01,243 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 08:44:01,243 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 08:44:01,253 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2019-11-20 08:44:01,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 08:44:01,258 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:44:01,259 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:44:01,260 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:44:01,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:44:01,264 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2019-11-20 08:44:01,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 08:44:01,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136766191] [2019-11-20 08:44:01,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-20 08:44:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:44:01,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 08:44:01,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:44:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:44:01,666 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 08:44:01,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:44:01,671 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136766191] [2019-11-20 08:44:01,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:44:01,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 08:44:01,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768354612] [2019-11-20 08:44:01,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 08:44:01,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 08:44:01,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 08:44:01,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 08:44:01,693 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2019-11-20 08:44:01,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:44:01,723 INFO L93 Difference]: Finished difference Result 79 states and 128 transitions. [2019-11-20 08:44:01,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 08:44:01,725 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 08:44:01,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 08:44:01,738 INFO L225 Difference]: With dead ends: 79 [2019-11-20 08:44:01,739 INFO L226 Difference]: Without dead ends: 37 [2019-11-20 08:44:01,742 INFO L630 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 [2019-11-20 08:44:01,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-20 08:44:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-20 08:44:01,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-20 08:44:01,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2019-11-20 08:44:01,778 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2019-11-20 08:44:01,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 08:44:01,778 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2019-11-20 08:44:01,778 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 08:44:01,778 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2019-11-20 08:44:01,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 08:44:01,779 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:44:01,779 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:44:01,984 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 08:44:01,984 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:44:01,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:44:01,985 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2019-11-20 08:44:01,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 08:44:01,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778836862] [2019-11-20 08:44:01,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-20 08:44:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:44:02,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 08:44:02,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:44:02,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:44:02,424 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 08:44:02,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:44:02,489 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778836862] [2019-11-20 08:44:02,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:44:02,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 08:44:02,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491145547] [2019-11-20 08:44:02,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 08:44:02,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 08:44:02,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 08:44:02,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-20 08:44:02,492 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 8 states. [2019-11-20 08:44:13,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:44:13,283 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2019-11-20 08:44:14,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 08:44:14,031 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-11-20 08:44:14,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 08:44:14,032 INFO L225 Difference]: With dead ends: 61 [2019-11-20 08:44:14,032 INFO L226 Difference]: Without dead ends: 31 [2019-11-20 08:44:14,033 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-20 08:44:14,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-20 08:44:14,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2019-11-20 08:44:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 08:44:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2019-11-20 08:44:14,038 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 12 [2019-11-20 08:44:14,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 08:44:14,039 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2019-11-20 08:44:14,039 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 08:44:14,039 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2019-11-20 08:44:14,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 08:44:14,040 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:44:14,040 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:44:14,252 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 08:44:14,253 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:44:14,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:44:14,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1714660040, now seen corresponding path program 1 times [2019-11-20 08:44:14,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 08:44:14,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494578228] [2019-11-20 08:44:14,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-20 08:44:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:44:14,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 08:44:14,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:44:15,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:44:15,401 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 08:44:17,184 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-11-20 08:44:17,187 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 08:44:17,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:44:17,518 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494578228] [2019-11-20 08:44:17,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:44:17,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 08:44:17,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984213561] [2019-11-20 08:44:17,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 08:44:17,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 08:44:17,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 08:44:17,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 08:44:17,520 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 9 states. [2019-11-20 08:44:18,076 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 11 [2019-11-20 08:44:18,680 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 13 [2019-11-20 08:44:36,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:44:36,590 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2019-11-20 08:44:36,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 08:44:36,591 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2019-11-20 08:44:36,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 08:44:36,592 INFO L225 Difference]: With dead ends: 31 [2019-11-20 08:44:36,592 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 08:44:36,593 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-11-20 08:44:36,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 08:44:36,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-20 08:44:36,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 08:44:36,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-11-20 08:44:36,597 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 13 [2019-11-20 08:44:36,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 08:44:36,597 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-11-20 08:44:36,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 08:44:36,598 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-11-20 08:44:36,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 08:44:36,598 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 08:44:36,598 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:44:36,799 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 08:44:36,799 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 08:44:36,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:44:36,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1479203763, now seen corresponding path program 1 times [2019-11-20 08:44:36,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 08:44:36,801 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572616558] [2019-11-20 08:44:36,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-20 08:44:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:44:40,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 08:44:40,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:44:40,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:44:40,518 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 08:44:41,440 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-20 08:44:41,444 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 08:44:43,602 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2019-11-20 08:44:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:44:43,605 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572616558] [2019-11-20 08:44:43,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:44:43,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-20 08:44:43,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729164645] [2019-11-20 08:44:43,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 08:44:43,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 08:44:43,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 08:44:43,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 08:44:43,607 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 6 states. [2019-11-20 08:44:44,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:44:44,005 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-11-20 08:44:44,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 08:44:44,010 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-20 08:44:44,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 08:44:44,010 INFO L225 Difference]: With dead ends: 27 [2019-11-20 08:44:44,010 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 08:44:44,011 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 08:44:44,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 08:44:44,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 08:44:44,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 08:44:44,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 08:44:44,012 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-20 08:44:44,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 08:44:44,012 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 08:44:44,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 08:44:44,012 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 08:44:44,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 08:44:44,213 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 08:44:44,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 08:44:44,303 INFO L444 ceAbstractionStarter]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2019-11-20 08:44:44,303 INFO L440 ceAbstractionStarter]: At program point L60-2(lines 60 64) the Hoare annotation is: false [2019-11-20 08:44:44,303 INFO L444 ceAbstractionStarter]: For program point L60-3(lines 58 69) no Hoare annotation was computed. [2019-11-20 08:44:44,303 INFO L444 ceAbstractionStarter]: For program point L77(lines 77 86) no Hoare annotation was computed. [2019-11-20 08:44:44,303 INFO L444 ceAbstractionStarter]: For program point L77-2(lines 77 86) no Hoare annotation was computed. [2019-11-20 08:44:44,304 INFO L444 ceAbstractionStarter]: For program point L102-1(lines 102 106) no Hoare annotation was computed. [2019-11-20 08:44:44,304 INFO L440 ceAbstractionStarter]: At program point L102-2(lines 102 106) the Hoare annotation is: false [2019-11-20 08:44:44,304 INFO L440 ceAbstractionStarter]: At program point L127(lines 44 129) the Hoare annotation is: (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (= .cse0 ~one_exp~0) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53)) (fp.eq |ULTIMATE.start___ieee754_exp_#res| .cse0))) [2019-11-20 08:44:44,304 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 08:44:44,304 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 08:44:44,304 INFO L444 ceAbstractionStarter]: For program point L144(lines 144 147) no Hoare annotation was computed. [2019-11-20 08:44:44,304 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-11-20 08:44:44,305 INFO L444 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2019-11-20 08:44:44,305 INFO L444 ceAbstractionStarter]: For program point L96(lines 96 99) no Hoare annotation was computed. [2019-11-20 08:44:44,305 INFO L444 ceAbstractionStarter]: For program point L121(lines 121 126) no Hoare annotation was computed. [2019-11-20 08:44:44,305 INFO L444 ceAbstractionStarter]: For program point L88(lines 88 91) no Hoare annotation was computed. [2019-11-20 08:44:44,305 INFO L444 ceAbstractionStarter]: For program point L121-1(lines 114 128) no Hoare annotation was computed. [2019-11-20 08:44:44,305 INFO L444 ceAbstractionStarter]: For program point L121-2(lines 121 126) no Hoare annotation was computed. [2019-11-20 08:44:44,305 INFO L444 ceAbstractionStarter]: For program point L88-2(lines 76 91) no Hoare annotation was computed. [2019-11-20 08:44:44,306 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 73) no Hoare annotation was computed. [2019-11-20 08:44:44,306 INFO L444 ceAbstractionStarter]: For program point L89(lines 89 90) no Hoare annotation was computed. [2019-11-20 08:44:44,306 INFO L444 ceAbstractionStarter]: For program point L139(lines 139 148) no Hoare annotation was computed. [2019-11-20 08:44:44,306 INFO L444 ceAbstractionStarter]: For program point L139-2(lines 139 148) no Hoare annotation was computed. [2019-11-20 08:44:44,306 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 08:44:44,306 INFO L444 ceAbstractionStarter]: For program point L57(lines 57 74) no Hoare annotation was computed. [2019-11-20 08:44:44,307 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2019-11-20 08:44:44,307 INFO L444 ceAbstractionStarter]: For program point L57-2(lines 44 129) no Hoare annotation was computed. [2019-11-20 08:44:44,307 INFO L444 ceAbstractionStarter]: For program point L49-1(lines 49 53) no Hoare annotation was computed. [2019-11-20 08:44:44,307 INFO L440 ceAbstractionStarter]: At program point L49-2(lines 49 53) the Hoare annotation is: (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_exp~0) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_exp~0)) [2019-11-20 08:44:44,307 INFO L444 ceAbstractionStarter]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2019-11-20 08:44:44,307 INFO L444 ceAbstractionStarter]: For program point L107(lines 107 112) no Hoare annotation was computed. [2019-11-20 08:44:44,308 INFO L444 ceAbstractionStarter]: For program point L107-1(lines 100 114) no Hoare annotation was computed. [2019-11-20 08:44:44,308 INFO L444 ceAbstractionStarter]: For program point L107-2(lines 107 112) no Hoare annotation was computed. [2019-11-20 08:44:44,308 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 08:44:44,308 INFO L444 ceAbstractionStarter]: For program point L58(lines 58 69) no Hoare annotation was computed. [2019-11-20 08:44:44,308 INFO L444 ceAbstractionStarter]: For program point L116-1(lines 116 120) no Hoare annotation was computed. [2019-11-20 08:44:44,308 INFO L440 ceAbstractionStarter]: At program point L116-2(lines 116 120) the Hoare annotation is: false [2019-11-20 08:44:44,308 INFO L444 ceAbstractionStarter]: For program point L100(lines 100 128) no Hoare annotation was computed. [2019-11-20 08:44:44,309 INFO L447 ceAbstractionStarter]: At program point L150(lines 131 151) the Hoare annotation is: true [2019-11-20 08:44:44,309 INFO L444 ceAbstractionStarter]: For program point L68(line 68) no Hoare annotation was computed. [2019-11-20 08:44:44,309 INFO L444 ceAbstractionStarter]: For program point L68-2(line 68) no Hoare annotation was computed. [2019-11-20 08:44:44,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,321 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,325 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,326 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,329 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,330 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:44:44 BoogieIcfgContainer [2019-11-20 08:44:44,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 08:44:44,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 08:44:44,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 08:44:44,340 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 08:44:44,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:44:01" (3/4) ... [2019-11-20 08:44:44,346 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 08:44:44,362 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 08:44:44,363 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-20 08:44:44,364 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 08:44:44,398 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_exp && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE())) && ~fp.eq~DOUBLE(\result, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) [2019-11-20 08:44:44,471 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e1543e33-61bd-4102-83c7-fdf42e7b5dcb/bin/uautomizer/witness.graphml [2019-11-20 08:44:44,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 08:44:44,472 INFO L168 Benchmark]: Toolchain (without parser) took 55904.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 960.4 MB in the beginning and 895.6 MB in the end (delta: 64.9 MB). Peak memory consumption was 165.6 MB. Max. memory is 11.5 GB. [2019-11-20 08:44:44,473 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:44:44,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -135.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-20 08:44:44,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-20 08:44:44,474 INFO L168 Benchmark]: Boogie Preprocessor took 58.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:44:44,474 INFO L168 Benchmark]: RCFGBuilder took 12098.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 11.5 GB. [2019-11-20 08:44:44,474 INFO L168 Benchmark]: TraceAbstraction took 43143.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 909.2 MB in the end (delta: 138.9 MB). Peak memory consumption was 138.9 MB. Max. memory is 11.5 GB. [2019-11-20 08:44:44,475 INFO L168 Benchmark]: Witness Printer took 134.01 ms. Allocated memory is still 1.1 GB. Free memory was 909.2 MB in the beginning and 895.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-11-20 08:44:44,477 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 409.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -135.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 12098.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 43143.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 909.2 MB in the end (delta: 138.9 MB). Peak memory consumption was 138.9 MB. Max. memory is 11.5 GB. * Witness Printer took 134.01 ms. Allocated memory is still 1.1 GB. Free memory was 909.2 MB in the beginning and 895.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant [2019-11-20 08:44:44,481 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,481 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,482 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,482 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_exp && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE())) && ~fp.eq~DOUBLE(\result, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) - InvariantResult [Line: 49]: Loop Invariant [2019-11-20 08:44:44,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 08:44:44,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_exp && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_exp - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Result: SAFE, OverallTime: 43.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 31.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 106 SDtfs, 59 SDslu, 151 SDs, 0 SdLazy, 32 SolverSat, 6 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 26.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 32 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 94 ConstructedInterpolants, 8 QuantifiedInterpolants, 6185 SizeOfPredicates, 19 NumberOfNonLiveVariables, 293 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...