./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be --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 b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 ............................................................................................................................................................................................................................................................................................................ 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_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be --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 b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:06:19,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:06:19,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:06:19,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:06:19,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:06:19,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:06:19,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:06:19,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:06:19,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:06:19,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:06:19,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:06:19,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:06:19,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:06:19,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:06:19,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:06:19,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:06:19,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:06:19,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:06:19,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:06:19,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:06:19,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:06:19,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:06:19,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:06:19,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:06:19,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:06:19,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:06:19,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:06:19,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:06:19,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:06:19,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:06:19,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:06:19,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:06:19,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:06:19,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:06:19,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:06:19,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:06:19,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:06:19,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:06:19,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:06:19,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:06:19,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:06:19,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:06:19,761 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:06:19,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:06:19,762 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:06:19,762 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:06:19,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:06:19,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:06:19,765 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:06:19,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:06:19,766 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:06:19,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:06:19,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:06:19,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:06:19,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:06:19,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:06:19,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:06:19,768 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:06:19,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:06:19,769 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:06:19,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:06:19,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:06:19,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:06:19,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:06:19,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:06:19,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:06:19,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:06:19,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:06:19,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:06:19,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:06:19,771 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:06:19,773 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:06:19,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:06:19,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:06:19,774 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_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 [2021-10-21 19:06:20,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:06:20,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:06:20,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:06:20,095 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:06:20,096 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:06:20,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2021-10-21 19:06:20,152 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/data/ba6f6ef81/e0d6a314ac834884abc5635f0219ce15/FLAG41efdae76 [2021-10-21 19:06:20,553 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:06:20,554 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2021-10-21 19:06:20,560 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/data/ba6f6ef81/e0d6a314ac834884abc5635f0219ce15/FLAG41efdae76 [2021-10-21 19:06:20,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/data/ba6f6ef81/e0d6a314ac834884abc5635f0219ce15 [2021-10-21 19:06:20,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:06:20,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:06:20,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:06:20,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:06:20,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:06:20,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:06:20" (1/1) ... [2021-10-21 19:06:20,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb5439b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:20, skipping insertion in model container [2021-10-21 19:06:20,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:06:20" (1/1) ... [2021-10-21 19:06:20,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:06:20,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:06:21,194 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_2132d13a-c109-4872-8453-0a8cea9f81a7/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c[2109,2122] [2021-10-21 19:06:21,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:06:21,212 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:06:21,239 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_2132d13a-c109-4872-8453-0a8cea9f81a7/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c[2109,2122] [2021-10-21 19:06:21,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:06:21,263 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:06:21,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:21 WrapperNode [2021-10-21 19:06:21,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:06:21,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:06:21,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:06:21,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:06:21,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:21" (1/1) ... [2021-10-21 19:06:21,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:21" (1/1) ... [2021-10-21 19:06:21,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:06:21,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:06:21,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:06:21,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:06:21,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:21" (1/1) ... [2021-10-21 19:06:21,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:21" (1/1) ... [2021-10-21 19:06:21,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:21" (1/1) ... [2021-10-21 19:06:21,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:21" (1/1) ... [2021-10-21 19:06:21,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:21" (1/1) ... [2021-10-21 19:06:21,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:21" (1/1) ... [2021-10-21 19:06:21,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:21" (1/1) ... [2021-10-21 19:06:21,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:06:21,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:06:21,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:06:21,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:06:21,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:21" (1/1) ... [2021-10-21 19:06:21,350 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:06:21,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:21,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:21,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:06:21,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:06:21,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:06:21,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-21 19:06:21,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:06:21,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-21 19:06:21,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:06:21,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:06:21,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:06:21,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:06:21,748 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:06:21,770 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-21 19:06:21,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:21 BoogieIcfgContainer [2021-10-21 19:06:21,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:06:21,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:06:21,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:06:21,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:06:21,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:06:20" (1/3) ... [2021-10-21 19:06:21,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b015fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:06:21, skipping insertion in model container [2021-10-21 19:06:21,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:21" (2/3) ... [2021-10-21 19:06:21,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b015fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:06:21, skipping insertion in model container [2021-10-21 19:06:21,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:21" (3/3) ... [2021-10-21 19:06:21,783 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2021-10-21 19:06:21,796 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:06:21,797 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:06:21,885 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:06:21,891 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 [2021-10-21 19:06:21,892 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:06:21,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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) [2021-10-21 19:06:21,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:06:21,911 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:21,912 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:21,912 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:06:21,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:21,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2021-10-21 19:06:21,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:21,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317099111] [2021-10-21 19:06:21,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:21,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:22,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:22,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:22,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317099111] [2021-10-21 19:06:22,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317099111] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:22,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:06:22,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:06:22,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601961627] [2021-10-21 19:06:22,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:06:22,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:22,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:06:22,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:06:22,129 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-21 19:06:22,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:22,145 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2021-10-21 19:06:22,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:06:22,146 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-10-21 19:06:22,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:22,153 INFO L225 Difference]: With dead ends: 64 [2021-10-21 19:06:22,154 INFO L226 Difference]: Without dead ends: 30 [2021-10-21 19:06:22,156 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:06:22,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-21 19:06:22,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-21 19:06:22,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 states have internal predecessors, (44), 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) [2021-10-21 19:06:22,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2021-10-21 19:06:22,185 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2021-10-21 19:06:22,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:22,185 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2021-10-21 19:06:22,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-21 19:06:22,186 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2021-10-21 19:06:22,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:06:22,187 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:22,187 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:22,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:06:22,188 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:06:22,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:22,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2021-10-21 19:06:22,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:22,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821496716] [2021-10-21 19:06:22,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:22,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:22,259 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:22,316 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:22,317 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:06:22,319 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:06:22,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:06:22,329 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:06:22,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:06:22 BoogieIcfgContainer [2021-10-21 19:06:22,356 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:06:22,357 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:06:22,357 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:06:22,357 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:06:22,358 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:21" (3/4) ... [2021-10-21 19:06:22,361 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:06:22,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:06:22,363 INFO L168 Benchmark]: Toolchain (without parser) took 1405.42 ms. Allocated memory was 88.1 MB in the beginning and 119.5 MB in the end (delta: 31.5 MB). Free memory was 47.3 MB in the beginning and 79.6 MB in the end (delta: -32.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:22,364 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 63.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:22,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.62 ms. Allocated memory is still 88.1 MB. Free memory was 47.0 MB in the beginning and 57.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:22,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.17 ms. Allocated memory is still 88.1 MB. Free memory was 57.0 MB in the beginning and 55.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:22,366 INFO L168 Benchmark]: Boogie Preprocessor took 30.16 ms. Allocated memory is still 88.1 MB. Free memory was 55.4 MB in the beginning and 53.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:22,367 INFO L168 Benchmark]: RCFGBuilder took 431.28 ms. Allocated memory is still 88.1 MB. Free memory was 53.9 MB in the beginning and 41.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:22,367 INFO L168 Benchmark]: TraceAbstraction took 581.80 ms. Allocated memory was 88.1 MB in the beginning and 119.5 MB in the end (delta: 31.5 MB). Free memory was 41.1 MB in the beginning and 80.1 MB in the end (delta: -38.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:22,368 INFO L168 Benchmark]: Witness Printer took 4.51 ms. Allocated memory is still 119.5 MB. Free memory is still 79.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:22,371 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory is still 63.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 306.62 ms. Allocated memory is still 88.1 MB. Free memory was 47.0 MB in the beginning and 57.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.17 ms. Allocated memory is still 88.1 MB. Free memory was 57.0 MB in the beginning and 55.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.16 ms. Allocated memory is still 88.1 MB. Free memory was 55.4 MB in the beginning and 53.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 431.28 ms. Allocated memory is still 88.1 MB. Free memory was 53.9 MB in the beginning and 41.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 581.80 ms. Allocated memory was 88.1 MB in the beginning and 119.5 MB in the end (delta: 31.5 MB). Free memory was 41.1 MB in the beginning and 80.1 MB in the end (delta: -38.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.51 ms. Allocated memory is still 119.5 MB. Free memory is still 79.6 MB. 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 98]: 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 bitwiseAnd at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 97. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = 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] [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 444.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.5ms, AutomataDifference: 42.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 47 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 17.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.3ms SsaConstructionTime, 87.9ms SatisfiabilityAnalysisTime, 48.4ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-10-21 19:06:22,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/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-e943c26 [2021-10-21 19:06:24,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:06:24,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:06:24,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:06:24,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:06:24,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:06:24,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:06:24,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:06:24,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:06:24,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:06:24,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:06:24,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:06:24,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:06:24,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:06:24,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:06:24,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:06:24,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:06:24,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:06:24,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:06:24,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:06:24,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:06:24,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:06:24,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:06:24,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:06:24,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:06:24,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:06:24,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:06:24,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:06:24,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:06:24,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:06:24,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:06:24,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:06:24,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:06:24,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:06:24,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:06:24,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:06:24,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:06:24,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:06:24,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:06:24,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:06:24,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:06:24,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 19:06:24,922 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:06:24,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:06:24,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:06:24,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:06:24,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:06:24,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:06:24,929 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:06:24,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:06:24,929 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:06:24,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:06:24,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:06:24,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:06:24,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:06:24,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:06:24,931 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:06:24,932 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:06:24,932 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:06:24,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:06:24,932 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:06:24,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:06:24,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:06:24,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:06:24,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:06:24,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:06:24,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:06:24,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:06:24,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:06:24,934 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:06:24,935 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:06:24,935 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:06:24,935 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:06:24,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:06:24,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:06:24,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:06:24,936 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_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 [2021-10-21 19:06:25,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:06:25,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:06:25,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:06:25,322 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:06:25,323 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:06:25,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2021-10-21 19:06:25,389 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/data/4de7f018a/6e74664844c6472eb5da122fccaca6a8/FLAG66523e5ce [2021-10-21 19:06:25,905 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:06:25,909 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2021-10-21 19:06:25,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/data/4de7f018a/6e74664844c6472eb5da122fccaca6a8/FLAG66523e5ce [2021-10-21 19:06:26,264 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/data/4de7f018a/6e74664844c6472eb5da122fccaca6a8 [2021-10-21 19:06:26,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:06:26,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:06:26,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:06:26,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:06:26,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:06:26,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@655b8d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26, skipping insertion in model container [2021-10-21 19:06:26,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:06:26,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:06:26,564 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_2132d13a-c109-4872-8453-0a8cea9f81a7/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c[2109,2122] [2021-10-21 19:06:26,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:06:26,587 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:06:26,645 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_2132d13a-c109-4872-8453-0a8cea9f81a7/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c[2109,2122] [2021-10-21 19:06:26,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:06:26,674 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:06:26,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26 WrapperNode [2021-10-21 19:06:26,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:06:26,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:06:26,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:06:26,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:06:26,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:06:26,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:06:26,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:06:26,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:06:26,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:06:26,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:06:26,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:06:26,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:06:26,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (1/1) ... [2021-10-21 19:06:26,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:06:26,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:26,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:26,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:06:26,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-21 19:06:26,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-21 19:06:26,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 19:06:26,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:06:26,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:06:26,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:06:26,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:06:26,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:06:26,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:06:28,209 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:06:28,209 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-21 19:06:28,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:28 BoogieIcfgContainer [2021-10-21 19:06:28,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:06:28,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:06:28,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:06:28,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:06:28,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:06:26" (1/3) ... [2021-10-21 19:06:28,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611c5d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:06:28, skipping insertion in model container [2021-10-21 19:06:28,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:26" (2/3) ... [2021-10-21 19:06:28,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611c5d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:06:28, skipping insertion in model container [2021-10-21 19:06:28,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:28" (3/3) ... [2021-10-21 19:06:28,220 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2021-10-21 19:06:28,225 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:06:28,225 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:06:28,323 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:06:28,333 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 [2021-10-21 19:06:28,333 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:06:28,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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) [2021-10-21 19:06:28,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:06:28,363 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:28,363 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:28,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:06:28,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:28,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2021-10-21 19:06:28,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:06:28,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139174784] [2021-10-21 19:06:28,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:28,387 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:06:28,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:06:28,390 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:06:28,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:06:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:28,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-21 19:06:28,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:28,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:28,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:06:28,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:28,576 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:06:28,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139174784] [2021-10-21 19:06:28,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139174784] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:28,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:06:28,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:06:28,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899066264] [2021-10-21 19:06:28,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:06:28,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:06:28,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:06:28,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:06:28,600 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-21 19:06:28,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:28,616 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2021-10-21 19:06:28,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:06:28,617 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-10-21 19:06:28,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:28,625 INFO L225 Difference]: With dead ends: 64 [2021-10-21 19:06:28,626 INFO L226 Difference]: Without dead ends: 30 [2021-10-21 19:06:28,628 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:06:28,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-21 19:06:28,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-21 19:06:28,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 states have internal predecessors, (44), 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) [2021-10-21 19:06:28,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2021-10-21 19:06:28,686 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2021-10-21 19:06:28,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:28,687 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2021-10-21 19:06:28,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-21 19:06:28,687 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2021-10-21 19:06:28,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:06:28,688 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:28,688 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:28,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:28,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:06:28,897 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:06:28,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:28,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2021-10-21 19:06:28,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:06:28,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108960884] [2021-10-21 19:06:28,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:28,900 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:06:28,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:06:28,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:06:28,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:06:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:29,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:06:29,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:29,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:29,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:06:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:29,466 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:06:29,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108960884] [2021-10-21 19:06:29,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108960884] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:29,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:06:29,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-21 19:06:29,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757195431] [2021-10-21 19:06:29,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:06:29,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:06:29,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:06:29,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:06:29,471 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2021-10-21 19:06:29,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:29,907 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2021-10-21 19:06:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:06:29,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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 [2021-10-21 19:06:29,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:29,909 INFO L225 Difference]: With dead ends: 44 [2021-10-21 19:06:29,909 INFO L226 Difference]: Without dead ends: 24 [2021-10-21 19:06:29,910 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 222.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:06:29,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-21 19:06:29,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2021-10-21 19:06:29,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:29,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-21 19:06:29,915 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2021-10-21 19:06:29,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:29,915 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-21 19:06:29,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2021-10-21 19:06:29,915 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-21 19:06:29,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-21 19:06:29,916 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:29,916 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:29,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:30,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:06:30,117 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:06:30,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:30,118 INFO L82 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2021-10-21 19:06:30,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:06:30,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131411947] [2021-10-21 19:06:30,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:30,119 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:06:30,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:06:30,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:06:30,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:06:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:30,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:06:30,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:30,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:30,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:06:34,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:34,122 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:06:34,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131411947] [2021-10-21 19:06:34,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131411947] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:34,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:06:34,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-21 19:06:34,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60292730] [2021-10-21 19:06:34,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:06:34,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:06:34,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:06:34,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:06:34,124 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 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) [2021-10-21 19:06:34,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:34,651 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-10-21 19:06:34,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:06:34,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 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 14 [2021-10-21 19:06:34,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:34,660 INFO L225 Difference]: With dead ends: 24 [2021-10-21 19:06:34,660 INFO L226 Difference]: Without dead ends: 17 [2021-10-21 19:06:34,661 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1396.5ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:06:34,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-21 19:06:34,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-21 19:06:34,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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) [2021-10-21 19:06:34,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-10-21 19:06:34,664 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2021-10-21 19:06:34,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:34,665 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-10-21 19:06:34,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 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) [2021-10-21 19:06:34,665 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-10-21 19:06:34,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:06:34,665 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:34,666 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:34,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:34,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:06:34,875 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:06:34,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:34,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1786240041, now seen corresponding path program 1 times [2021-10-21 19:06:34,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:06:34,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326877220] [2021-10-21 19:06:34,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:34,877 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:06:34,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:06:34,878 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:06:34,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:06:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:35,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:06:35,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:35,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-10-21 19:06:35,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:35,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:06:35,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-10-21 19:06:35,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:35,451 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:06:35,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326877220] [2021-10-21 19:06:35,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326877220] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:35,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:06:35,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-21 19:06:35,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734891793] [2021-10-21 19:06:35,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:06:35,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:06:35,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:06:35,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:06:35,454 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-10-21 19:06:35,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:35,615 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2021-10-21 19:06:35,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:06:35,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 16 [2021-10-21 19:06:35,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:35,622 INFO L225 Difference]: With dead ends: 24 [2021-10-21 19:06:35,622 INFO L226 Difference]: Without dead ends: 17 [2021-10-21 19:06:35,622 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.3ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:06:35,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-21 19:06:35,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-21 19:06:35,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0) internal successors, (16), 16 states have internal predecessors, (16), 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) [2021-10-21 19:06:35,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2021-10-21 19:06:35,626 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2021-10-21 19:06:35,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:35,626 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2021-10-21 19:06:35,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-10-21 19:06:35,628 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2021-10-21 19:06:35,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:06:35,629 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:35,629 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:35,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-21 19:06:35,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:06:35,830 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:06:35,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:35,834 INFO L82 PathProgramCache]: Analyzing trace with hash -11232679, now seen corresponding path program 1 times [2021-10-21 19:06:35,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:06:35,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190577510] [2021-10-21 19:06:35,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:35,835 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:06:35,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:06:35,835 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:06:35,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 19:06:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:36,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 19:06:36,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:36,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-10-21 19:06:36,796 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:06:36,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 74 [2021-10-21 19:06:36,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-10-21 19:06:36,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:36,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:06:37,362 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:06:37,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 84 [2021-10-21 19:06:37,380 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:06:37,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 82 [2021-10-21 19:06:37,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-21 19:06:37,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:37,585 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:06:37,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190577510] [2021-10-21 19:06:37,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190577510] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:37,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:06:37,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 13 [2021-10-21 19:06:37,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374144068] [2021-10-21 19:06:37,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-21 19:06:37,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:06:37,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 19:06:37,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:06:37,588 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:37,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:37,979 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2021-10-21 19:06:37,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:06:37,980 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-21 19:06:37,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:37,980 INFO L225 Difference]: With dead ends: 17 [2021-10-21 19:06:37,980 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:06:37,981 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 523.5ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-10-21 19:06:37,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:06:37,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:06:37,981 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) [2021-10-21 19:06:37,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:06:37,981 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-10-21 19:06:37,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:37,982 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:06:37,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:37,982 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:06:37,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:06:37,984 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:06:38,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:38,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:06:38,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:06:38,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:06:38,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:06:38,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:06:38,418 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 61) no Hoare annotation was computed. [2021-10-21 19:06:38,418 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-10-21 19:06:38,418 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:06:38,418 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:06:38,419 INFO L857 garLoopResultBuilder]: For program point L53(lines 53 75) no Hoare annotation was computed. [2021-10-21 19:06:38,419 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2021-10-21 19:06:38,419 INFO L857 garLoopResultBuilder]: For program point L62(lines 62 74) no Hoare annotation was computed. [2021-10-21 19:06:38,419 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2021-10-21 19:06:38,419 INFO L857 garLoopResultBuilder]: For program point L46(lines 46 51) no Hoare annotation was computed. [2021-10-21 19:06:38,419 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-10-21 19:06:38,419 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2021-10-21 19:06:38,419 INFO L857 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-10-21 19:06:38,419 INFO L857 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2021-10-21 19:06:38,420 INFO L857 garLoopResultBuilder]: For program point L97(lines 97 100) no Hoare annotation was computed. [2021-10-21 19:06:38,420 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 71) no Hoare annotation was computed. [2021-10-21 19:06:38,420 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 75) no Hoare annotation was computed. [2021-10-21 19:06:38,420 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-21 19:06:38,420 INFO L857 garLoopResultBuilder]: For program point L32(lines 32 52) no Hoare annotation was computed. [2021-10-21 19:06:38,420 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:06:38,420 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2021-10-21 19:06:38,420 INFO L857 garLoopResultBuilder]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2021-10-21 19:06:38,421 INFO L853 garLoopResultBuilder]: At program point L24-2(lines 24 29) the Hoare annotation is: (and (= (_ +zero 11 53) ULTIMATE.start_main_~x~0) (= (_ +zero 11 53) ULTIMATE.start_ceil_double_~x) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-21 19:06:38,421 INFO L857 garLoopResultBuilder]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2021-10-21 19:06:38,421 INFO L853 garLoopResultBuilder]: At program point L82(lines 21 83) the Hoare annotation is: (and (= (_ +zero 11 53) ULTIMATE.start_main_~x~0) (= (_ +zero 11 53) ULTIMATE.start_ceil_double_~x) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 64))) (and (= (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_3|) (_ bv20 32))) (bvadd (_ bv1023 32) ULTIMATE.start_ceil_double_~j0~0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_3|)) (_ +zero 11 53)))) (= |ULTIMATE.start_ceil_double_#res| ULTIMATE.start_main_~x~0) (= currentRoundingMode roundNearestTiesToEven) (exists ((|v_skolemized_q#valueAsBitvector_5| (_ BitVec 64)) (|v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13| (_ BitVec 32))) (let ((.cse0 (select |#memory_int| |v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13|))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_5|)) ULTIMATE.start_main_~x~0) (= (select .cse0 (_ bv0 32)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_5|)) (= (select .cse0 (_ bv4 32)) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_5|))))) (= (bvor ULTIMATE.start_ceil_double_~i0~0 ULTIMATE.start_ceil_double_~i1~0) (_ bv0 32))) [2021-10-21 19:06:38,421 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 41) no Hoare annotation was computed. [2021-10-21 19:06:38,421 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:06:38,422 INFO L857 garLoopResultBuilder]: For program point L34(lines 34 40) no Hoare annotation was computed. [2021-10-21 19:06:38,422 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 81) no Hoare annotation was computed. [2021-10-21 19:06:38,422 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2021-10-21 19:06:38,422 INFO L857 garLoopResultBuilder]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2021-10-21 19:06:38,422 INFO L860 garLoopResultBuilder]: At program point L101(lines 85 102) the Hoare annotation is: true [2021-10-21 19:06:38,422 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 69) no Hoare annotation was computed. [2021-10-21 19:06:38,422 INFO L857 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-10-21 19:06:38,427 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:06:38,436 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:06:38,440 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:06:38,442 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,443 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,443 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,443 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,443 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:06:38,443 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,444 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,444 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,444 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13,QUANTIFIED] [2021-10-21 19:06:38,444 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13,QUANTIFIED] [2021-10-21 19:06:38,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,446 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,446 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,446 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,447 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:06:38,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13,QUANTIFIED] [2021-10-21 19:06:38,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13,QUANTIFIED] [2021-10-21 19:06:38,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:06:38 BoogieIcfgContainer [2021-10-21 19:06:38,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:06:38,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:06:38,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:06:38,451 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:06:38,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:28" (3/4) ... [2021-10-21 19:06:38,454 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:06:38,465 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-21 19:06:38,466 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-21 19:06:38,466 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:06:38,466 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:06:38,490 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~Pluszero~LONGDOUBLE() == x && ~Pluszero~LONGDOUBLE() == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_ceil) && (\exists v_skolemized_q#valueAsBitvector_3 : bv64 :: ~bvand32(2047bv32, ~bvashr32(v_skolemized_q#valueAsBitvector_3[63:32], 20bv32)) == ~bvadd64(1023bv32, j0) && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_3[63:63], v_skolemized_q#valueAsBitvector_3[62:52], v_skolemized_q#valueAsBitvector_3[51:0]) == ~Pluszero~LONGDOUBLE())) && \result == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_skolemized_q#valueAsBitvector_5 : bv64, v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13 : bv32 :: (~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_5[63:63], v_skolemized_q#valueAsBitvector_5[62:52], v_skolemized_q#valueAsBitvector_5[51:0]) == x && unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13][0bv32] == v_skolemized_q#valueAsBitvector_5[31:0]) && unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13][4bv32] == v_skolemized_q#valueAsBitvector_5[63:32])) && ~bvor32(i0, i1) == 0bv32 [2021-10-21 19:06:38,507 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:06:38,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:06:38,508 INFO L168 Benchmark]: Toolchain (without parser) took 12238.94 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 52.8 MB in the beginning and 31.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:38,509 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 71.3 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:06:38,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.84 ms. Allocated memory is still 71.3 MB. Free memory was 52.5 MB in the beginning and 52.0 MB in the end (delta: 527.6 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:38,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.40 ms. Allocated memory is still 71.3 MB. Free memory was 52.0 MB in the beginning and 50.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:38,510 INFO L168 Benchmark]: Boogie Preprocessor took 61.42 ms. Allocated memory is still 71.3 MB. Free memory was 50.1 MB in the beginning and 48.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:38,510 INFO L168 Benchmark]: RCFGBuilder took 1411.21 ms. Allocated memory is still 71.3 MB. Free memory was 48.5 MB in the beginning and 35.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:38,511 INFO L168 Benchmark]: TraceAbstraction took 10236.63 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 35.4 MB in the beginning and 34.7 MB in the end (delta: 798.4 kB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:38,511 INFO L168 Benchmark]: Witness Printer took 57.04 ms. Allocated memory is still 86.0 MB. Free memory was 34.7 MB in the beginning and 31.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:06:38,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 71.3 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 404.84 ms. Allocated memory is still 71.3 MB. Free memory was 52.5 MB in the beginning and 52.0 MB in the end (delta: 527.6 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.40 ms. Allocated memory is still 71.3 MB. Free memory was 52.0 MB in the beginning and 50.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.42 ms. Allocated memory is still 71.3 MB. Free memory was 50.1 MB in the beginning and 48.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1411.21 ms. Allocated memory is still 71.3 MB. Free memory was 48.5 MB in the beginning and 35.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10236.63 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 35.4 MB in the beginning and 34.7 MB in the end (delta: 798.4 kB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * Witness Printer took 57.04 ms. Allocated memory is still 86.0 MB. Free memory was 34.7 MB in the beginning and 31.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 98]: 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, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10121.2ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 20.9ms, AutomataDifference: 1584.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 224.2ms, InitialAbstractionConstructionTime: 12.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 84 SDtfs, 145 SDslu, 51 SDs, 0 SdLazy, 81 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1129.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 98 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2203.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 55.4ms AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 87 HoareAnnotationTreeSize, 3 FomulaSimplifications, 60 FormulaSimplificationTreeSizeReduction, 48.7ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 169.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 69.4ms SsaConstructionTime, 508.2ms SatisfiabilityAnalysisTime, 6195.5ms InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 29 QuantifiedInterpolants, 1286 SizeOfPredicates, 27 NumberOfNonLiveVariables, 243 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2021-10-21 19:06:38,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:06:38,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~Pluszero~LONGDOUBLE() == x && ~Pluszero~LONGDOUBLE() == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_ceil) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 21]: Loop Invariant [2021-10-21 19:06:38,526 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,526 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,526 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,527 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:06:38,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,527 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13,QUANTIFIED] [2021-10-21 19:06:38,528 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,528 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13,QUANTIFIED] [2021-10-21 19:06:38,528 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,529 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,529 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,529 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,530 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_3,QUANTIFIED] [2021-10-21 19:06:38,530 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 19:06:38,530 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,530 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,530 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13,QUANTIFIED] [2021-10-21 19:06:38,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-21 19:06:38,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13,QUANTIFIED] [2021-10-21 19:06:38,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] Derived loop invariant: ((((((~Pluszero~LONGDOUBLE() == x && ~Pluszero~LONGDOUBLE() == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_ceil) && (\exists v_skolemized_q#valueAsBitvector_3 : bv64 :: ~bvand32(2047bv32, ~bvashr32(v_skolemized_q#valueAsBitvector_3[63:32], 20bv32)) == ~bvadd64(1023bv32, j0) && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_3[63:63], v_skolemized_q#valueAsBitvector_3[62:52], v_skolemized_q#valueAsBitvector_3[51:0]) == ~Pluszero~LONGDOUBLE())) && \result == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_skolemized_q#valueAsBitvector_5 : bv64, v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13 : bv32 :: (~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_5[63:63], v_skolemized_q#valueAsBitvector_5[62:52], v_skolemized_q#valueAsBitvector_5[51:0]) == x && unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13][0bv32] == v_skolemized_q#valueAsBitvector_5[31:0]) && unknown-#memory_int-unknown[v_ULTIMATE.start_ceil_double_~#ew_u~0.base_13][4bv32] == v_skolemized_q#valueAsBitvector_5[63:32])) && ~bvor32(i0, i1) == 0bv32 RESULT: Ultimate proved your program to be correct! [2021-10-21 19:06:38,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2132d13a-c109-4872-8453-0a8cea9f81a7/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...