./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0281.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0281.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2ecded21af21e612f7d09e448ffb0a0da08483e60b9a5a0901f8909a8d7c6dd0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:12:00,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:12:00,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:12:00,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:12:00,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:12:00,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:12:00,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:12:00,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:12:00,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:12:00,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:12:00,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:12:00,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:12:00,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:12:00,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:12:00,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:12:00,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:12:00,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:12:00,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:12:00,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:12:00,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:12:00,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:12:00,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:12:00,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:12:00,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:12:00,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:12:00,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:12:00,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:12:00,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:12:00,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:12:00,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:12:00,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:12:00,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:12:00,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:12:00,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:12:00,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:12:00,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:12:00,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:12:00,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:12:00,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:12:00,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:12:00,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:12:00,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:12:00,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:12:00,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:12:00,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:12:00,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:12:00,224 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:12:00,225 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:12:00,225 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:12:00,225 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:12:00,225 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:12:00,226 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:12:00,235 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:12:00,235 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:12:00,235 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:12:00,236 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:12:00,236 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:12:00,236 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:12:00,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:12:00,238 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:12:00,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:12:00,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:12:00,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:12:00,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:12:00,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:12:00,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:12:00,240 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:12:00,240 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:12:00,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:12:00,240 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:12:00,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:12:00,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:12:00,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:12:00,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:12:00,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:12:00,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:12:00,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:12:00,245 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:12:00,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:12:00,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:12:00,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:12:00,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:12:00,246 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecded21af21e612f7d09e448ffb0a0da08483e60b9a5a0901f8909a8d7c6dd0 [2021-11-12 23:12:00,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:12:00,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:12:00,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:12:00,660 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:12:00,661 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:12:00,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/double_req_bl_0281.c [2021-11-12 23:12:00,748 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/data/7bad1a4d1/122376b4b53f4e15a77f5176df6d9985/FLAGe39c537a8 [2021-11-12 23:12:01,434 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:12:01,442 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/sv-benchmarks/c/float-newlib/double_req_bl_0281.c [2021-11-12 23:12:01,461 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/data/7bad1a4d1/122376b4b53f4e15a77f5176df6d9985/FLAGe39c537a8 [2021-11-12 23:12:01,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/data/7bad1a4d1/122376b4b53f4e15a77f5176df6d9985 [2021-11-12 23:12:01,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:12:01,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:12:01,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:12:01,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:12:01,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:12:01,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:12:01" (1/1) ... [2021-11-12 23:12:01,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d84faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:01, skipping insertion in model container [2021-11-12 23:12:01,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:12:01" (1/1) ... [2021-11-12 23:12:01,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:12:01,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:12:02,238 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_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/sv-benchmarks/c/float-newlib/double_req_bl_0281.c[6064,6077] [2021-11-12 23:12:02,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:12:02,260 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:12:02,360 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_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/sv-benchmarks/c/float-newlib/double_req_bl_0281.c[6064,6077] [2021-11-12 23:12:02,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:12:02,385 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:12:02,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:02 WrapperNode [2021-11-12 23:12:02,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:12:02,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:12:02,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:12:02,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:12:02,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:02" (1/1) ... [2021-11-12 23:12:02,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:02" (1/1) ... [2021-11-12 23:12:02,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:12:02,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:12:02,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:12:02,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:12:02,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:02" (1/1) ... [2021-11-12 23:12:02,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:02" (1/1) ... [2021-11-12 23:12:02,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:02" (1/1) ... [2021-11-12 23:12:02,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:02" (1/1) ... [2021-11-12 23:12:02,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:02" (1/1) ... [2021-11-12 23:12:02,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:02" (1/1) ... [2021-11-12 23:12:02,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:02" (1/1) ... [2021-11-12 23:12:02,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:12:02,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:12:02,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:12:02,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:12:02,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:02" (1/1) ... [2021-11-12 23:12:02,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:12:02,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:12:02,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:12:02,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:12:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:12:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:12:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-12 23:12:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:12:02,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-12 23:12:02,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:12:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:12:02,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:12:02,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:12:03,709 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:12:03,709 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-12 23:12:03,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:12:03 BoogieIcfgContainer [2021-11-12 23:12:03,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:12:03,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:12:03,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:12:03,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:12:03,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:12:01" (1/3) ... [2021-11-12 23:12:03,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c96cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:12:03, skipping insertion in model container [2021-11-12 23:12:03,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:02" (2/3) ... [2021-11-12 23:12:03,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c96cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:12:03, skipping insertion in model container [2021-11-12 23:12:03,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:12:03" (3/3) ... [2021-11-12 23:12:03,740 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0281.c [2021-11-12 23:12:03,747 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:12:03,747 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:12:03,812 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:12:03,821 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:12:03,822 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:12:03,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 46 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:12:03,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 23:12:03,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:03,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:03,851 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:12:03,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:03,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1482611031, now seen corresponding path program 1 times [2021-11-12 23:12:03,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:03,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016747584] [2021-11-12 23:12:03,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:03,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:04,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:04,110 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:12:04,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016747584] [2021-11-12 23:12:04,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016747584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:12:04,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:12:04,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:12:04,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373515374] [2021-11-12 23:12:04,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:12:04,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:12:04,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:12:04,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:12:04,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:12:04,175 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 46 states have internal predecessors, (76), 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) [2021-11-12 23:12:04,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:04,271 INFO L93 Difference]: Finished difference Result 92 states and 149 transitions. [2021-11-12 23:12:04,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:12:04,274 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 [2021-11-12 23:12:04,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:04,289 INFO L225 Difference]: With dead ends: 92 [2021-11-12 23:12:04,290 INFO L226 Difference]: Without dead ends: 44 [2021-11-12 23:12:04,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:12:04,310 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.39ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:04,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 14 Unknown, 0 Unchecked, 3.79ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 56.39ms Time] [2021-11-12 23:12:04,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-12 23:12:04,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-12 23:12:04,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 43 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:12:04,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2021-11-12 23:12:04,373 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 10 [2021-11-12 23:12:04,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:04,374 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2021-11-12 23:12:04,374 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) [2021-11-12 23:12:04,375 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2021-11-12 23:12:04,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 23:12:04,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:04,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:04,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:12:04,380 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:12:04,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:04,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1781186236, now seen corresponding path program 1 times [2021-11-12 23:12:04,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:12:04,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960363323] [2021-11-12 23:12:04,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:04,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:12:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:12:04,470 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:12:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:12:04,578 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:12:04,578 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:12:04,583 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 23:12:04,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:12:04,590 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-12 23:12:04,597 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:12:04,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:12:04 BoogieIcfgContainer [2021-11-12 23:12:04,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:12:04,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:12:04,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:12:04,679 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:12:04,680 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:12:03" (3/4) ... [2021-11-12 23:12:04,684 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-12 23:12:04,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:12:04,686 INFO L158 Benchmark]: Toolchain (without parser) took 2943.07ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 51.3MB in the beginning and 70.0MB in the end (delta: -18.7MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2021-11-12 23:12:04,688 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 67.7MB in the beginning and 67.7MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:12:04,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 638.08ms. Allocated memory is still 92.3MB. Free memory was 51.1MB in the beginning and 62.4MB in the end (delta: -11.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 23:12:04,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.11ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 59.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:12:04,697 INFO L158 Benchmark]: Boogie Preprocessor took 97.99ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 57.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:12:04,698 INFO L158 Benchmark]: RCFGBuilder took 1118.93ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 57.2MB in the beginning and 101.5MB in the end (delta: -44.2MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2021-11-12 23:12:04,699 INFO L158 Benchmark]: TraceAbstraction took 959.06ms. Allocated memory is still 134.2MB. Free memory was 100.9MB in the beginning and 70.8MB in the end (delta: 30.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-12 23:12:04,699 INFO L158 Benchmark]: Witness Printer took 6.09ms. Allocated memory is still 134.2MB. Free memory was 70.8MB in the beginning and 70.0MB in the end (delta: 776.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:12:04,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 67.7MB in the beginning and 67.7MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 638.08ms. Allocated memory is still 92.3MB. Free memory was 51.1MB in the beginning and 62.4MB in the end (delta: -11.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.11ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 59.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.99ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 57.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1118.93ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 57.2MB in the beginning and 101.5MB in the end (delta: -44.2MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. * TraceAbstraction took 959.06ms. Allocated memory is still 134.2MB. Free memory was 100.9MB in the beginning and 70.8MB in the end (delta: 30.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 6.09ms. Allocated memory is still 134.2MB. Free memory was 70.8MB in the beginning and 70.0MB in the end (delta: 776.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 250]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 155, overapproximation of bitwiseAnd at line 173, overapproximation of someBinaryArithmeticDOUBLEoperation at line 190, overapproximation of someBinaryDOUBLEComparisonOperation at line 20. Possible FailurePath: [L22] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L149-L163] static const double one_asin = 1.00000000000000000000e+00, huge_asin = 1.000e+300, pio2_hi_asin = 1.57079632679489655800e+00, pio2_lo_asin = 6.12323399573676603587e-17, pio4_hi_asin = 7.85398163397448278999e-01, pS0_asin = 1.66666666666666657415e-01, pS1_asin = -3.25565818622400915405e-01, pS2_asin = 2.01212532134862925881e-01, pS3_asin = -4.00555345006794114027e-02, pS4_asin = 7.91534994289814532176e-04, pS5_asin = 3.47933107596021167570e-05, qS1_asin = -2.40339491173441421878e+00, qS2_asin = 2.02094576023350569471e+00, qS3_asin = -6.88283971605453293030e-01, qS4_asin = 7.70381505559019352791e-02; [L242] double x = __VERIFIER_nondet_double(); [L244] COND TRUE x < -1.0 && x > 1.0 [L246] CALL, EXPR __ieee754_asin(x) [L166] double t, w, p, q, c, r, s; [L167] __int32_t hx, ix; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L169] ieee_double_shape_type gh_u; [L170] gh_u.value = (x) [L171] EXPR gh_u.parts.msw [L171] (hx) = gh_u.parts.msw [L173] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L174] COND FALSE !(ix >= 0x3ff00000) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=1044381696, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L185] COND TRUE ix < 0x3fe00000 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=1044381696, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L186] COND FALSE !(ix < 0x3e400000) [L190] t = x * x [L191-L194] p = t * (pS0_asin + t * (pS1_asin + t * (pS2_asin + t * (pS3_asin + t * (pS4_asin + t * pS5_asin))))) [L195-L196] q = one_asin + t * (qS1_asin + t * (qS2_asin + t * (qS3_asin + t * qS4_asin))) [L197] w = p / q [L198] return x + x * w; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=1044381696, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L246] RET, EXPR __ieee754_asin(x) [L246] double res = __ieee754_asin(x); [L249] CALL, EXPR isnan_double(res) [L20] return x != x; [L249] RET, EXPR isnan_double(res) [L249] COND TRUE !isnan_double(res) [L250] reach_error() VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 56.39ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 48.27ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 47 mSDtfsCounter, 14 mSolverCounterSat, 3.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 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 [2021-11-12 23:12:04,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0281.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2ecded21af21e612f7d09e448ffb0a0da08483e60b9a5a0901f8909a8d7c6dd0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:12:07,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:12:07,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:12:07,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:12:07,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:12:07,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:12:07,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:12:07,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:12:07,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:12:07,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:12:07,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:12:07,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:12:07,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:12:07,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:12:07,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:12:07,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:12:07,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:12:07,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:12:07,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:12:07,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:12:07,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:12:07,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:12:07,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:12:07,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:12:07,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:12:07,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:12:07,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:12:07,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:12:08,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:12:08,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:12:08,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:12:08,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:12:08,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:12:08,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:12:08,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:12:08,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:12:08,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:12:08,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:12:08,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:12:08,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:12:08,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:12:08,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 23:12:08,073 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:12:08,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:12:08,076 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:12:08,076 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:12:08,076 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:12:08,077 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:12:08,077 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:12:08,077 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:12:08,077 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:12:08,078 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:12:08,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:12:08,081 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:12:08,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:12:08,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:12:08,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:12:08,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:12:08,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:12:08,083 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:12:08,084 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:12:08,084 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:12:08,084 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:12:08,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:12:08,085 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:12:08,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:12:08,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:12:08,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:12:08,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:12:08,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:12:08,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:12:08,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:12:08,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:12:08,088 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:12:08,088 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:12:08,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:12:08,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:12:08,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:12:08,090 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_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecded21af21e612f7d09e448ffb0a0da08483e60b9a5a0901f8909a8d7c6dd0 [2021-11-12 23:12:08,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:12:08,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:12:08,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:12:08,618 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:12:08,619 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:12:08,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/double_req_bl_0281.c [2021-11-12 23:12:08,709 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/data/ac72fe0e6/dcd198eacb664540af7e650f79d73b58/FLAG83148b007 [2021-11-12 23:12:09,317 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:12:09,318 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/sv-benchmarks/c/float-newlib/double_req_bl_0281.c [2021-11-12 23:12:09,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/data/ac72fe0e6/dcd198eacb664540af7e650f79d73b58/FLAG83148b007 [2021-11-12 23:12:09,704 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/data/ac72fe0e6/dcd198eacb664540af7e650f79d73b58 [2021-11-12 23:12:09,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:12:09,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:12:09,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:12:09,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:12:09,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:12:09,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:12:09" (1/1) ... [2021-11-12 23:12:09,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9f81ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:09, skipping insertion in model container [2021-11-12 23:12:09,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:12:09" (1/1) ... [2021-11-12 23:12:09,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:12:09,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:12:10,199 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_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/sv-benchmarks/c/float-newlib/double_req_bl_0281.c[6064,6077] [2021-11-12 23:12:10,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:12:10,232 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:12:10,327 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_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/sv-benchmarks/c/float-newlib/double_req_bl_0281.c[6064,6077] [2021-11-12 23:12:10,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:12:10,366 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:12:10,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:10 WrapperNode [2021-11-12 23:12:10,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:12:10,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:12:10,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:12:10,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:12:10,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:10" (1/1) ... [2021-11-12 23:12:10,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:10" (1/1) ... [2021-11-12 23:12:10,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:12:10,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:12:10,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:12:10,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:12:10,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:10" (1/1) ... [2021-11-12 23:12:10,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:10" (1/1) ... [2021-11-12 23:12:10,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:10" (1/1) ... [2021-11-12 23:12:10,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:10" (1/1) ... [2021-11-12 23:12:10,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:10" (1/1) ... [2021-11-12 23:12:10,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:10" (1/1) ... [2021-11-12 23:12:10,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:10" (1/1) ... [2021-11-12 23:12:10,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:12:10,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:12:10,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:12:10,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:12:10,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:10" (1/1) ... [2021-11-12 23:12:10,580 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:12:10,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:12:10,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:12:10,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:12:10,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-12 23:12:10,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-12 23:12:10,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:12:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:12:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:12:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:12:10,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:12:10,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:12:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:12:30,122 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:12:30,122 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-12 23:12:30,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:12:30 BoogieIcfgContainer [2021-11-12 23:12:30,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:12:30,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:12:30,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:12:30,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:12:30,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:12:09" (1/3) ... [2021-11-12 23:12:30,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b802cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:12:30, skipping insertion in model container [2021-11-12 23:12:30,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:12:10" (2/3) ... [2021-11-12 23:12:30,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b802cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:12:30, skipping insertion in model container [2021-11-12 23:12:30,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:12:30" (3/3) ... [2021-11-12 23:12:30,134 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0281.c [2021-11-12 23:12:30,139 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:12:30,139 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:12:30,186 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:12:30,193 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:12:30,193 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:12:30,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 72 states have (on average 1.6666666666666667) internal successors, (120), 73 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:12:30,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-12 23:12:30,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:12:30,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:12:30,223 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:12:30,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:12:30,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2510696, now seen corresponding path program 1 times [2021-11-12 23:12:30,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:12:30,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504781342] [2021-11-12 23:12:30,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:12:30,242 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:12:30,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:12:30,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:12:30,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:12:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:12:30,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:12:30,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:12:31,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:31,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:12:31,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:12:31,447 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:12:31,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504781342] [2021-11-12 23:12:31,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504781342] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:12:31,449 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:12:31,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:12:31,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621179724] [2021-11-12 23:12:31,452 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:12:31,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:12:31,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:12:31,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:12:31,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:12:31,487 INFO L87 Difference]: Start difference. First operand has 74 states, 72 states have (on average 1.6666666666666667) internal successors, (120), 73 states have internal predecessors, (120), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:12:31,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:12:31,503 INFO L93 Difference]: Finished difference Result 78 states and 123 transitions. [2021-11-12 23:12:31,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:12:31,505 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-12 23:12:31,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:12:31,511 INFO L225 Difference]: With dead ends: 78 [2021-11-12 23:12:31,511 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:12:31,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:12:31,518 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:12:31,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.20ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:12:31,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:12:31,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:12:31,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:12:31,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:12:31,542 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-11-12 23:12:31,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:12:31,542 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:12:31,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:12:31,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:12:31,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:12:31,545 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 23:12:31,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 23:12:31,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:12:31,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 23:12:32,060 INFO L858 garLoopResultBuilder]: For program point L250(line 250) no Hoare annotation was computed. [2021-11-12 23:12:32,061 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 168 172) no Hoare annotation was computed. [2021-11-12 23:12:32,061 INFO L854 garLoopResultBuilder]: At program point L168-2(lines 168 172) the Hoare annotation is: false [2021-11-12 23:12:32,061 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 135 139) no Hoare annotation was computed. [2021-11-12 23:12:32,061 INFO L858 garLoopResultBuilder]: For program point L168-3(lines 168 172) no Hoare annotation was computed. [2021-11-12 23:12:32,061 INFO L854 garLoopResultBuilder]: At program point L135-2(lines 135 139) the Hoare annotation is: false [2021-11-12 23:12:32,062 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 23:12:32,062 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 200) no Hoare annotation was computed. [2021-11-12 23:12:32,062 INFO L858 garLoopResultBuilder]: For program point L185-1(lines 185 200) no Hoare annotation was computed. [2021-11-12 23:12:32,062 INFO L854 garLoopResultBuilder]: At program point L20(line 20) the Hoare annotation is: false [2021-11-12 23:12:32,062 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 199) no Hoare annotation was computed. [2021-11-12 23:12:32,063 INFO L854 garLoopResultBuilder]: At program point L87-2(lines 87 103) the Hoare annotation is: false [2021-11-12 23:12:32,063 INFO L858 garLoopResultBuilder]: For program point L87-3(lines 24 132) no Hoare annotation was computed. [2021-11-12 23:12:32,063 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 188) no Hoare annotation was computed. [2021-11-12 23:12:32,063 INFO L858 garLoopResultBuilder]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2021-11-12 23:12:32,064 INFO L854 garLoopResultBuilder]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2021-11-12 23:12:32,064 INFO L858 garLoopResultBuilder]: For program point L55-4(lines 55 56) no Hoare annotation was computed. [2021-11-12 23:12:32,064 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 119) no Hoare annotation was computed. [2021-11-12 23:12:32,064 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 123) no Hoare annotation was computed. [2021-11-12 23:12:32,064 INFO L858 garLoopResultBuilder]: For program point L122-2(lines 122 123) no Hoare annotation was computed. [2021-11-12 23:12:32,065 INFO L861 garLoopResultBuilder]: At program point L255(lines 234 256) the Hoare annotation is: true [2021-11-12 23:12:32,065 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 99) no Hoare annotation was computed. [2021-11-12 23:12:32,065 INFO L858 garLoopResultBuilder]: For program point L90-2(lines 90 99) no Hoare annotation was computed. [2021-11-12 23:12:32,065 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 145) no Hoare annotation was computed. [2021-11-12 23:12:32,065 INFO L858 garLoopResultBuilder]: For program point L140-1(lines 133 147) no Hoare annotation was computed. [2021-11-12 23:12:32,066 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 118) no Hoare annotation was computed. [2021-11-12 23:12:32,076 INFO L858 garLoopResultBuilder]: For program point L140-2(lines 140 145) no Hoare annotation was computed. [2021-11-12 23:12:32,077 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 46) no Hoare annotation was computed. [2021-11-12 23:12:32,077 INFO L854 garLoopResultBuilder]: At program point L74-2(lines 74 84) the Hoare annotation is: false [2021-11-12 23:12:32,077 INFO L858 garLoopResultBuilder]: For program point L41-2(lines 41 46) no Hoare annotation was computed. [2021-11-12 23:12:32,078 INFO L858 garLoopResultBuilder]: For program point L74-3(lines 74 84) no Hoare annotation was computed. [2021-11-12 23:12:32,078 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 23:12:32,078 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 200) no Hoare annotation was computed. [2021-11-12 23:12:32,079 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 45) no Hoare annotation was computed. [2021-11-12 23:12:32,079 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2021-11-12 23:12:32,079 INFO L858 garLoopResultBuilder]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2021-11-12 23:12:32,079 INFO L854 garLoopResultBuilder]: At program point L125-2(lines 125 130) the Hoare annotation is: false [2021-11-12 23:12:32,080 INFO L858 garLoopResultBuilder]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2021-11-12 23:12:32,080 INFO L858 garLoopResultBuilder]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2021-11-12 23:12:32,080 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 117) no Hoare annotation was computed. [2021-11-12 23:12:32,080 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 80) no Hoare annotation was computed. [2021-11-12 23:12:32,081 INFO L858 garLoopResultBuilder]: For program point L76-2(lines 76 80) no Hoare annotation was computed. [2021-11-12 23:12:32,081 INFO L858 garLoopResultBuilder]: For program point L176-1(lines 176 180) no Hoare annotation was computed. [2021-11-12 23:12:32,081 INFO L854 garLoopResultBuilder]: At program point L176-2(lines 176 180) the Hoare annotation is: false [2021-11-12 23:12:32,082 INFO L858 garLoopResultBuilder]: For program point L176-3(lines 174 185) no Hoare annotation was computed. [2021-11-12 23:12:32,082 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-11-12 23:12:32,088 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 23:12:32,088 INFO L858 garLoopResultBuilder]: For program point L95(lines 95 96) no Hoare annotation was computed. [2021-11-12 23:12:32,089 INFO L858 garLoopResultBuilder]: For program point L95-2(lines 95 96) no Hoare annotation was computed. [2021-11-12 23:12:32,089 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 253) no Hoare annotation was computed. [2021-11-12 23:12:32,089 INFO L858 garLoopResultBuilder]: For program point L211(lines 211 227) no Hoare annotation was computed. [2021-11-12 23:12:32,089 INFO L858 garLoopResultBuilder]: For program point L244-2(lines 244 253) no Hoare annotation was computed. [2021-11-12 23:12:32,089 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 165 232) no Hoare annotation was computed. [2021-11-12 23:12:32,089 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 117) no Hoare annotation was computed. [2021-11-12 23:12:32,089 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 66) no Hoare annotation was computed. [2021-11-12 23:12:32,090 INFO L858 garLoopResultBuilder]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2021-11-12 23:12:32,090 INFO L858 garLoopResultBuilder]: For program point L63-2(lines 63 66) no Hoare annotation was computed. [2021-11-12 23:12:32,090 INFO L854 garLoopResultBuilder]: At program point L30-2(lines 30 35) the Hoare annotation is: false [2021-11-12 23:12:32,090 INFO L858 garLoopResultBuilder]: For program point L30-3(lines 24 132) no Hoare annotation was computed. [2021-11-12 23:12:32,090 INFO L854 garLoopResultBuilder]: At program point L146(lines 133 147) the Hoare annotation is: false [2021-11-12 23:12:32,090 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 114) no Hoare annotation was computed. [2021-11-12 23:12:32,090 INFO L858 garLoopResultBuilder]: For program point L113-2(lines 113 114) no Hoare annotation was computed. [2021-11-12 23:12:32,090 INFO L854 garLoopResultBuilder]: At program point L131(lines 24 132) the Hoare annotation is: false [2021-11-12 23:12:32,091 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 23:12:32,091 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 250) no Hoare annotation was computed. [2021-11-12 23:12:32,091 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 60) no Hoare annotation was computed. [2021-11-12 23:12:32,091 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 60) no Hoare annotation was computed. [2021-11-12 23:12:32,091 INFO L854 garLoopResultBuilder]: At program point L231(lines 165 232) the Hoare annotation is: false [2021-11-12 23:12:32,091 INFO L854 garLoopResultBuilder]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2021-11-12 23:12:32,091 INFO L858 garLoopResultBuilder]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2021-11-12 23:12:32,091 INFO L858 garLoopResultBuilder]: For program point L249(lines 249 252) no Hoare annotation was computed. [2021-11-12 23:12:32,092 INFO L858 garLoopResultBuilder]: For program point L216-1(lines 216 221) no Hoare annotation was computed. [2021-11-12 23:12:32,092 INFO L854 garLoopResultBuilder]: At program point L216-2(lines 216 221) the Hoare annotation is: false [2021-11-12 23:12:32,092 INFO L858 garLoopResultBuilder]: For program point L216-3(lines 216 221) no Hoare annotation was computed. [2021-11-12 23:12:32,094 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-12 23:12:32,095 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:12:32,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:12:32 BoogieIcfgContainer [2021-11-12 23:12:32,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:12:32,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:12:32,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:12:32,108 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:12:32,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:12:30" (3/4) ... [2021-11-12 23:12:32,115 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 23:12:32,133 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-12 23:12:32,134 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-12 23:12:32,135 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-12 23:12:32,135 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 23:12:32,191 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 23:12:32,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:12:32,192 INFO L158 Benchmark]: Toolchain (without parser) took 22471.35ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 22.9MB in the beginning and 32.3MB in the end (delta: -9.4MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2021-11-12 23:12:32,192 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 48.2MB. Free memory was 28.8MB in the beginning and 28.8MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:12:32,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.56ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 22.7MB in the beginning and 39.4MB in the end (delta: -16.7MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2021-11-12 23:12:32,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.31ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 36.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 23:12:32,194 INFO L158 Benchmark]: Boogie Preprocessor took 92.33ms. Allocated memory is still 60.8MB. Free memory was 36.7MB in the beginning and 34.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:12:32,194 INFO L158 Benchmark]: RCFGBuilder took 19554.68ms. Allocated memory is still 60.8MB. Free memory was 34.2MB in the beginning and 29.2MB in the end (delta: 4.9MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2021-11-12 23:12:32,195 INFO L158 Benchmark]: TraceAbstraction took 1980.12ms. Allocated memory is still 60.8MB. Free memory was 28.7MB in the beginning and 38.6MB in the end (delta: -9.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-11-12 23:12:32,195 INFO L158 Benchmark]: Witness Printer took 83.94ms. Allocated memory is still 60.8MB. Free memory was 38.6MB in the beginning and 32.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-12 23:12:32,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 48.2MB. Free memory was 28.8MB in the beginning and 28.8MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 641.56ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 22.7MB in the beginning and 39.4MB in the end (delta: -16.7MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.31ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 36.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.33ms. Allocated memory is still 60.8MB. Free memory was 36.7MB in the beginning and 34.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 19554.68ms. Allocated memory is still 60.8MB. Free memory was 34.2MB in the beginning and 29.2MB in the end (delta: 4.9MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1980.12ms. Allocated memory is still 60.8MB. Free memory was 28.7MB in the beginning and 38.6MB in the end (delta: -9.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Witness Printer took 83.94ms. Allocated memory is still 60.8MB. Free memory was 38.6MB in the beginning and 32.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 250]: 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, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.00ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.00ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 6 mSDtfsCounter, 0 mSolverCounterSat, 0.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 16 NumberOfFragments, 15 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 234]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 216]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-12 23:12:32,435 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-12 23:12:32,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4fa62c-d152-46bb-aeff-a3edcaed9ee1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE