./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 .............................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 .................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:48:26,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:48:26,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:48:26,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:48:26,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:48:26,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:48:26,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:48:26,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:48:26,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:48:26,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:48:26,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:48:26,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:48:26,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:48:26,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:48:26,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:48:26,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:48:26,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:48:26,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:48:26,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:48:26,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:48:26,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:48:26,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:48:26,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:48:26,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:48:26,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:48:26,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:48:26,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:48:26,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:48:26,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:48:26,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:48:26,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:48:26,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:48:26,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:48:26,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:48:26,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:48:26,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:48:26,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:48:26,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:48:26,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:48:26,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:48:26,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:48:26,990 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 22:48:27,031 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:48:27,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:48:27,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:48:27,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:48:27,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:48:27,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:48:27,045 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:48:27,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:48:27,046 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:48:27,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:48:27,047 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:48:27,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:48:27,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:48:27,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:48:27,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:48:27,049 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:48:27,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:48:27,049 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:48:27,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:48:27,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:48:27,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:48:27,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:48:27,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:48:27,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:48:27,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:48:27,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:48:27,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:48:27,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 22:48:27,052 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 22:48:27,052 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 22:48:27,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:48:27,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:48:27,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 [2021-10-28 22:48:27,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:48:27,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:48:27,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:48:27,451 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:48:27,452 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:48:27,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2021-10-28 22:48:27,530 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/data/c1c009d2c/6236b5048c9d4252b4d7628c93e9570c/FLAG35136ddce [2021-10-28 22:48:28,102 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:48:28,103 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2021-10-28 22:48:28,123 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/data/c1c009d2c/6236b5048c9d4252b4d7628c93e9570c/FLAG35136ddce [2021-10-28 22:48:28,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/data/c1c009d2c/6236b5048c9d4252b4d7628c93e9570c [2021-10-28 22:48:28,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:48:28,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:48:28,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:48:28,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:48:28,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:48:28,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:48:28" (1/1) ... [2021-10-28 22:48:28,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47aaa63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:28, skipping insertion in model container [2021-10-28 22:48:28,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:48:28" (1/1) ... [2021-10-28 22:48:28,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:48:28,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:48:28,846 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2021-10-28 22:48:28,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:48:28,866 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:48:28,936 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2021-10-28 22:48:28,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:48:28,966 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:48:28,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:28 WrapperNode [2021-10-28 22:48:28,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:48:28,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:48:28,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:48:28,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:48:28,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:28" (1/1) ... [2021-10-28 22:48:28,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:28" (1/1) ... [2021-10-28 22:48:29,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:48:29,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:48:29,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:48:29,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:48:29,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:28" (1/1) ... [2021-10-28 22:48:29,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:28" (1/1) ... [2021-10-28 22:48:29,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:28" (1/1) ... [2021-10-28 22:48:29,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:28" (1/1) ... [2021-10-28 22:48:29,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:28" (1/1) ... [2021-10-28 22:48:29,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:28" (1/1) ... [2021-10-28 22:48:29,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:28" (1/1) ... [2021-10-28 22:48:29,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:48:29,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:48:29,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:48:29,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:48:29,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:28" (1/1) ... [2021-10-28 22:48:29,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:48:29,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:48:29,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:48:29,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:48:29,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:48:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:48:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-28 22:48:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:48:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-28 22:48:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:48:29,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:48:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 22:48:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:48:29,695 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:48:29,709 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-28 22:48:29,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:48:29 BoogieIcfgContainer [2021-10-28 22:48:29,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:48:29,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:48:29,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:48:29,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:48:29,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:48:28" (1/3) ... [2021-10-28 22:48:29,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3389133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:48:29, skipping insertion in model container [2021-10-28 22:48:29,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:28" (2/3) ... [2021-10-28 22:48:29,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3389133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:48:29, skipping insertion in model container [2021-10-28 22:48:29,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:48:29" (3/3) ... [2021-10-28 22:48:29,734 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2021-10-28 22:48:29,740 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:48:29,755 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 22:48:29,837 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:48:29,850 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 22:48:29,850 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 22:48:29,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:29,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 22:48:29,880 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:48:29,881 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:48:29,883 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:48:29,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:29,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2021-10-28 22:48:29,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:48:29,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19031538] [2021-10-28 22:48:29,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:29,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:48:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:48:30,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:48:30,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:48:30,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19031538] [2021-10-28 22:48:30,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19031538] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:48:30,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:48:30,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 22:48:30,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284701966] [2021-10-28 22:48:30,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 22:48:30,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:48:30,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 22:48:30,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 22:48:30,171 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:30,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:48:30,187 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2021-10-28 22:48:30,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 22:48:30,188 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-28 22:48:30,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:48:30,198 INFO L225 Difference]: With dead ends: 66 [2021-10-28 22:48:30,199 INFO L226 Difference]: Without dead ends: 31 [2021-10-28 22:48:30,201 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 22:48:30,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-28 22:48:30,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-28 22:48:30,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:30,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2021-10-28 22:48:30,234 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2021-10-28 22:48:30,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:48:30,235 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2021-10-28 22:48:30,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:30,235 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2021-10-28 22:48:30,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 22:48:30,236 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:48:30,236 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:48:30,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 22:48:30,237 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:48:30,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:30,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2021-10-28 22:48:30,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:48:30,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373537627] [2021-10-28 22:48:30,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:30,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:48:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:30,294 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:48:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:30,413 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:48:30,417 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 22:48:30,427 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:48:30,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 22:48:30,435 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 22:48:30,438 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:48:30,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:48:30 BoogieIcfgContainer [2021-10-28 22:48:30,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:48:30,492 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:48:30,493 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:48:30,493 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:48:30,494 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:48:29" (3/4) ... [2021-10-28 22:48:30,499 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 22:48:30,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:48:30,502 INFO L168 Benchmark]: Toolchain (without parser) took 2058.98 ms. Allocated memory is still 111.1 MB. Free memory was 72.4 MB in the beginning and 83.9 MB in the end (delta: -11.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:48:30,504 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 111.1 MB. Free memory is still 88.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:48:30,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 519.23 ms. Allocated memory is still 111.1 MB. Free memory was 72.2 MB in the beginning and 84.7 MB in the end (delta: -12.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:48:30,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.78 ms. Allocated memory is still 111.1 MB. Free memory was 84.7 MB in the beginning and 83.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:48:30,510 INFO L168 Benchmark]: Boogie Preprocessor took 61.38 ms. Allocated memory is still 111.1 MB. Free memory was 83.0 MB in the beginning and 81.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:48:30,517 INFO L168 Benchmark]: RCFGBuilder took 626.84 ms. Allocated memory is still 111.1 MB. Free memory was 81.4 MB in the beginning and 68.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 22:48:30,518 INFO L168 Benchmark]: TraceAbstraction took 763.98 ms. Allocated memory is still 111.1 MB. Free memory was 68.4 MB in the beginning and 84.4 MB in the end (delta: -16.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2021-10-28 22:48:30,518 INFO L168 Benchmark]: Witness Printer took 7.48 ms. Allocated memory is still 111.1 MB. Free memory was 84.4 MB in the beginning and 83.9 MB in the end (delta: 562.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:48:30,527 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 111.1 MB. Free memory is still 88.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 519.23 ms. Allocated memory is still 111.1 MB. Free memory was 72.2 MB in the beginning and 84.7 MB in the end (delta: -12.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.78 ms. Allocated memory is still 111.1 MB. Free memory was 84.7 MB in the beginning and 83.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.38 ms. Allocated memory is still 111.1 MB. Free memory was 83.0 MB in the beginning and 81.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 626.84 ms. Allocated memory is still 111.1 MB. Free memory was 81.4 MB in the beginning and 68.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 763.98 ms. Allocated memory is still 111.1 MB. Free memory was 68.4 MB in the beginning and 84.4 MB in the end (delta: -16.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. * Witness Printer took 7.48 ms. Allocated memory is still 111.1 MB. Free memory was 84.4 MB in the beginning and 83.9 MB in the end (delta: 562.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 97]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 43, overapproximation of bitwiseOr at line 44, overapproximation of someBinaryArithmeticDOUBLEoperation at line 92, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 17. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] double x = 0.0 / 0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L32] COND FALSE !(j0 < 0) [L43] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L44] COND TRUE ((i0 & i) | i1) == 0 [L45] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double res = ceil_double(x); [L17] return x != x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L96] COND TRUE !isnan_double(res) [L97] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 48 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=34occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 22:48:30,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:48:33,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:48:33,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:48:33,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:48:33,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:48:33,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:48:33,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:48:33,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:48:33,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:48:33,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:48:33,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:48:33,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:48:33,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:48:33,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:48:33,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:48:33,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:48:33,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:48:33,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:48:33,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:48:33,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:48:33,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:48:33,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:48:33,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:48:33,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:48:33,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:48:33,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:48:33,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:48:33,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:48:33,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:48:33,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:48:33,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:48:33,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:48:33,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:48:33,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:48:33,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:48:33,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:48:33,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:48:33,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:48:33,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:48:33,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:48:33,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:48:33,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 22:48:33,632 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:48:33,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:48:33,633 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:48:33,634 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:48:33,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:48:33,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:48:33,637 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:48:33,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:48:33,637 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:48:33,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:48:33,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:48:33,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:48:33,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:48:33,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:48:33,640 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 22:48:33,640 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 22:48:33,640 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:48:33,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:48:33,641 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:48:33,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:48:33,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:48:33,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:48:33,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:48:33,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:48:33,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:48:33,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:48:33,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:48:33,643 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 22:48:33,643 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 22:48:33,643 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 22:48:33,644 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 22:48:33,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:48:33,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:48:33,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 22:48:33,645 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 [2021-10-28 22:48:34,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:48:34,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:48:34,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:48:34,153 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:48:34,154 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:48:34,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2021-10-28 22:48:34,241 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/data/f0a4380e8/a782efdb7ca14275a98b9bf32a03fbaf/FLAGdb5bae686 [2021-10-28 22:48:34,822 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:48:34,823 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2021-10-28 22:48:34,831 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/data/f0a4380e8/a782efdb7ca14275a98b9bf32a03fbaf/FLAGdb5bae686 [2021-10-28 22:48:35,205 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/data/f0a4380e8/a782efdb7ca14275a98b9bf32a03fbaf [2021-10-28 22:48:35,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:48:35,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:48:35,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:48:35,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:48:35,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:48:35,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:48:35" (1/1) ... [2021-10-28 22:48:35,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b8c8905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:35, skipping insertion in model container [2021-10-28 22:48:35,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:48:35" (1/1) ... [2021-10-28 22:48:35,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:48:35,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:48:35,548 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2021-10-28 22:48:35,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:48:35,602 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:48:35,637 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2021-10-28 22:48:35,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:48:35,663 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:48:35,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:35 WrapperNode [2021-10-28 22:48:35,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:48:35,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:48:35,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:48:35,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:48:35,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:35" (1/1) ... [2021-10-28 22:48:35,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:35" (1/1) ... [2021-10-28 22:48:35,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:48:35,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:48:35,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:48:35,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:48:35,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:35" (1/1) ... [2021-10-28 22:48:35,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:35" (1/1) ... [2021-10-28 22:48:35,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:35" (1/1) ... [2021-10-28 22:48:35,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:35" (1/1) ... [2021-10-28 22:48:35,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:35" (1/1) ... [2021-10-28 22:48:35,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:35" (1/1) ... [2021-10-28 22:48:35,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:35" (1/1) ... [2021-10-28 22:48:35,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:48:35,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:48:35,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:48:35,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:48:35,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:35" (1/1) ... [2021-10-28 22:48:35,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:48:35,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:48:35,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:48:35,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:48:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-28 22:48:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-28 22:48:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 22:48:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:48:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 22:48:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:48:35,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:48:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 22:48:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:48:37,704 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:48:37,705 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-28 22:48:37,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:48:37 BoogieIcfgContainer [2021-10-28 22:48:37,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:48:37,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:48:37,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:48:37,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:48:37,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:48:35" (1/3) ... [2021-10-28 22:48:37,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c920c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:48:37, skipping insertion in model container [2021-10-28 22:48:37,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:35" (2/3) ... [2021-10-28 22:48:37,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c920c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:48:37, skipping insertion in model container [2021-10-28 22:48:37,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:48:37" (3/3) ... [2021-10-28 22:48:37,716 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2021-10-28 22:48:37,722 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:48:37,722 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 22:48:37,777 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:48:37,786 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 22:48:37,786 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 22:48:37,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:37,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 22:48:37,812 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:48:37,813 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:48:37,814 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:48:37,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:37,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2021-10-28 22:48:37,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:48:37,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890522527] [2021-10-28 22:48:37,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:37,839 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:48:37,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:48:37,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:48:37,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 22:48:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:48:38,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 22:48:38,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:48:38,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:48:38,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:48:38,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:48:38,196 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:48:38,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890522527] [2021-10-28 22:48:38,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890522527] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:48:38,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:48:38,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 22:48:38,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039057115] [2021-10-28 22:48:38,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 22:48:38,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:48:38,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 22:48:38,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 22:48:38,229 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:38,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:48:38,276 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2021-10-28 22:48:38,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 22:48:38,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-28 22:48:38,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:48:38,287 INFO L225 Difference]: With dead ends: 66 [2021-10-28 22:48:38,287 INFO L226 Difference]: Without dead ends: 31 [2021-10-28 22:48:38,291 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 22:48:38,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-28 22:48:38,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-28 22:48:38,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:38,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2021-10-28 22:48:38,335 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2021-10-28 22:48:38,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:48:38,336 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2021-10-28 22:48:38,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:38,337 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2021-10-28 22:48:38,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 22:48:38,338 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:48:38,338 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:48:38,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:48:38,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:48:38,553 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:48:38,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:38,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2021-10-28 22:48:38,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:48:38,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427612465] [2021-10-28 22:48:38,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:38,564 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:48:38,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:48:38,566 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:48:38,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 22:48:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:48:38,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 22:48:38,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:48:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:48:39,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:48:39,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:48:39,346 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:48:39,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427612465] [2021-10-28 22:48:39,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427612465] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:48:39,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:48:39,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-28 22:48:39,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647104420] [2021-10-28 22:48:39,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 22:48:39,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:48:39,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:48:39,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:48:39,351 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:40,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:48:40,783 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2021-10-28 22:48:40,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:48:40,784 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-28 22:48:40,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:48:40,785 INFO L225 Difference]: With dead ends: 42 [2021-10-28 22:48:40,785 INFO L226 Difference]: Without dead ends: 21 [2021-10-28 22:48:40,786 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-10-28 22:48:40,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-28 22:48:40,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-28 22:48:40,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:40,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-10-28 22:48:40,790 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2021-10-28 22:48:40,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:48:40,791 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-28 22:48:40,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:40,791 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-10-28 22:48:40,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 22:48:40,792 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:48:40,793 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:48:40,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:48:41,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:48:41,009 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 22:48:41,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2021-10-28 22:48:41,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 22:48:41,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085502577] [2021-10-28 22:48:41,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:41,011 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 22:48:41,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 22:48:41,012 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 22:48:41,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 22:48:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:48:41,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:48:41,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:48:41,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:48:41,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 22:48:41,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:48:41,925 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 22:48:41,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1085502577] [2021-10-28 22:48:41,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1085502577] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 22:48:41,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:48:41,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 22:48:41,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082847628] [2021-10-28 22:48:41,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 22:48:41,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 22:48:41,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 22:48:41,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:48:41,928 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:42,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:48:42,200 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-28 22:48:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 22:48:42,202 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-28 22:48:42,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:48:42,202 INFO L225 Difference]: With dead ends: 21 [2021-10-28 22:48:42,202 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 22:48:42,203 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:48:42,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 22:48:42,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 22:48:42,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:42,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 22:48:42,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-28 22:48:42,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:48:42,204 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:48:42,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:42,204 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 22:48:42,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 22:48:42,207 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:48:42,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:48:42,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 22:48:42,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 22:48:42,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:48:42,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:48:42,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:48:42,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 22:48:42,536 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 61) no Hoare annotation was computed. [2021-10-28 22:48:42,536 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-10-28 22:48:42,537 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 22:48:42,537 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 22:48:42,537 INFO L857 garLoopResultBuilder]: For program point L53(lines 53 75) no Hoare annotation was computed. [2021-10-28 22:48:42,537 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2021-10-28 22:48:42,537 INFO L857 garLoopResultBuilder]: For program point L62(lines 62 74) no Hoare annotation was computed. [2021-10-28 22:48:42,538 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2021-10-28 22:48:42,538 INFO L857 garLoopResultBuilder]: For program point L46(lines 46 51) no Hoare annotation was computed. [2021-10-28 22:48:42,538 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 99) no Hoare annotation was computed. [2021-10-28 22:48:42,538 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-10-28 22:48:42,538 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2021-10-28 22:48:42,538 INFO L857 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-10-28 22:48:42,539 INFO L857 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2021-10-28 22:48:42,539 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-28 22:48:42,539 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 71) no Hoare annotation was computed. [2021-10-28 22:48:42,539 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 75) no Hoare annotation was computed. [2021-10-28 22:48:42,539 INFO L857 garLoopResultBuilder]: For program point L32(lines 32 52) no Hoare annotation was computed. [2021-10-28 22:48:42,540 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 22:48:42,540 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2021-10-28 22:48:42,540 INFO L857 garLoopResultBuilder]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2021-10-28 22:48:42,540 INFO L853 garLoopResultBuilder]: At program point L24-2(lines 24 29) the Hoare annotation is: (not (fp.eq ULTIMATE.start_ceil_double_~x ULTIMATE.start_ceil_double_~x)) [2021-10-28 22:48:42,541 INFO L857 garLoopResultBuilder]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2021-10-28 22:48:42,541 INFO L853 garLoopResultBuilder]: At program point L82(lines 21 83) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_ceil_double_~x ULTIMATE.start_ceil_double_~x)) (not (fp.eq |ULTIMATE.start_ceil_double_#res| |ULTIMATE.start_ceil_double_#res|))) [2021-10-28 22:48:42,541 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 41) no Hoare annotation was computed. [2021-10-28 22:48:42,541 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 22:48:42,542 INFO L853 garLoopResultBuilder]: At program point L17(line 17) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (not (fp.eq ULTIMATE.start_ceil_double_~x ULTIMATE.start_ceil_double_~x)) (not (fp.eq |ULTIMATE.start_ceil_double_#res| |ULTIMATE.start_ceil_double_#res|))) [2021-10-28 22:48:42,542 INFO L857 garLoopResultBuilder]: For program point L34(lines 34 40) no Hoare annotation was computed. [2021-10-28 22:48:42,542 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 81) no Hoare annotation was computed. [2021-10-28 22:48:42,542 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2021-10-28 22:48:42,542 INFO L857 garLoopResultBuilder]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2021-10-28 22:48:42,543 INFO L860 garLoopResultBuilder]: At program point L101(lines 85 102) the Hoare annotation is: true [2021-10-28 22:48:42,543 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 69) no Hoare annotation was computed. [2021-10-28 22:48:42,543 INFO L857 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-10-28 22:48:42,547 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 22:48:42,548 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:48:42,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:48:42 BoogieIcfgContainer [2021-10-28 22:48:42,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:48:42,563 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:48:42,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:48:42,564 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:48:42,564 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:48:37" (3/4) ... [2021-10-28 22:48:42,568 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 22:48:42,581 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-28 22:48:42,581 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-28 22:48:42,582 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 22:48:42,582 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 22:48:42,609 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) [2021-10-28 22:48:42,610 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && !~fp.eq~DOUBLE(x, x)) && !~fp.eq~DOUBLE(\result, \result) [2021-10-28 22:48:42,635 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:48:42,636 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:48:42,646 INFO L168 Benchmark]: Toolchain (without parser) took 7421.78 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.9 MB in the beginning and 36.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:48:42,648 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 56.6 MB. Free memory was 36.4 MB in the beginning and 36.3 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:48:42,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.69 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 37.1 MB in the end (delta: -3.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:48:42,650 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.21 ms. Allocated memory is still 56.6 MB. Free memory was 37.1 MB in the beginning and 35.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:48:42,650 INFO L168 Benchmark]: Boogie Preprocessor took 66.83 ms. Allocated memory is still 56.6 MB. Free memory was 35.4 MB in the beginning and 33.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:48:42,651 INFO L168 Benchmark]: RCFGBuilder took 1873.29 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.7 MB in the beginning and 48.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-10-28 22:48:42,651 INFO L168 Benchmark]: TraceAbstraction took 4854.04 ms. Allocated memory is still 71.3 MB. Free memory was 47.8 MB in the beginning and 40.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-28 22:48:42,652 INFO L168 Benchmark]: Witness Printer took 72.15 ms. Allocated memory is still 71.3 MB. Free memory was 40.2 MB in the beginning and 36.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:48:42,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 56.6 MB. Free memory was 36.4 MB in the beginning and 36.3 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 447.69 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 37.1 MB in the end (delta: -3.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.21 ms. Allocated memory is still 56.6 MB. Free memory was 37.1 MB in the beginning and 35.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.83 ms. Allocated memory is still 56.6 MB. Free memory was 35.4 MB in the beginning and 33.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1873.29 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.7 MB in the beginning and 48.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4854.04 ms. Allocated memory is still 71.3 MB. Free memory was 47.8 MB in the beginning and 40.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Witness Printer took 72.15 ms. Allocated memory is still 71.3 MB. Free memory was 40.2 MB in the beginning and 36.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 97]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 32 SDslu, 90 SDs, 0 SdLazy, 69 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 26 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 12 QuantifiedInterpolants, 249 SizeOfPredicates, 18 NumberOfNonLiveVariables, 145 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (1bv32 == \result && !~fp.eq~DOUBLE(x, x)) && !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) RESULT: Ultimate proved your program to be correct! [2021-10-28 22:48:42,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b82452fb-40d2-459b-9dc9-36512af843cb/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...