./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Dubois-060.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_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/Dubois-060.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c6c6bcdd72ea020631275d05f53f3a85eefff832aea60657c8517ea7b38d6be --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:26:54,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:26:54,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:26:54,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:26:54,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:26:54,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:26:54,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:26:54,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:26:54,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:26:54,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:26:54,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:26:54,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:26:54,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:26:54,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:26:54,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:26:54,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:26:54,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:26:54,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:26:54,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:26:54,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:26:54,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:26:54,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:26:54,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:26:54,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:26:54,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:26:54,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:26:54,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:26:54,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:26:54,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:26:54,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:26:54,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:26:54,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:26:54,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:26:54,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:26:54,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:26:54,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:26:54,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:26:54,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:26:54,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:26:54,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:26:54,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:26:54,173 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:26:54,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:26:54,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:26:54,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:26:54,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:26:54,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:26:54,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:26:54,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:26:54,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:26:54,225 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:26:54,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:26:54,226 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:26:54,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:26:54,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:26:54,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:26:54,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:26:54,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:26:54,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:26:54,232 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:26:54,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:26:54,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:26:54,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:26:54,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:26:54,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:26:54,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:26:54,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:26:54,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:26:54,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:26:54,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:26:54,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:26:54,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:26:54,235 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:26:54,235 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:26:54,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:26:54,235 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:26:54,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c6c6bcdd72ea020631275d05f53f3a85eefff832aea60657c8517ea7b38d6be [2021-11-13 18:26:54,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:26:54,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:26:54,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:26:54,518 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:26:54,519 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:26:54,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/xcsp/Dubois-060.c [2021-11-13 18:26:54,608 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/data/a7458ba31/20ec84eda1f24f8aab7f64d47f90d697/FLAGff856c4cd [2021-11-13 18:26:55,260 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:26:55,261 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/sv-benchmarks/c/xcsp/Dubois-060.c [2021-11-13 18:26:55,299 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/data/a7458ba31/20ec84eda1f24f8aab7f64d47f90d697/FLAGff856c4cd [2021-11-13 18:26:55,489 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/data/a7458ba31/20ec84eda1f24f8aab7f64d47f90d697 [2021-11-13 18:26:55,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:26:55,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:26:55,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:26:55,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:26:55,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:26:55,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:26:55" (1/1) ... [2021-11-13 18:26:55,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a5100f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:55, skipping insertion in model container [2021-11-13 18:26:55,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:26:55" (1/1) ... [2021-11-13 18:26:55,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:26:55,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:26:56,154 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_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/sv-benchmarks/c/xcsp/Dubois-060.c[42720,42733] [2021-11-13 18:26:56,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:26:56,199 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:26:56,387 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_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/sv-benchmarks/c/xcsp/Dubois-060.c[42720,42733] [2021-11-13 18:26:56,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:26:56,408 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:26:56,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:56 WrapperNode [2021-11-13 18:26:56,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:26:56,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:26:56,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:26:56,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:26:56,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:56" (1/1) ... [2021-11-13 18:26:56,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:56" (1/1) ... [2021-11-13 18:26:56,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:26:56,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:26:56,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:26:56,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:26:56,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:56" (1/1) ... [2021-11-13 18:26:56,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:56" (1/1) ... [2021-11-13 18:26:56,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:56" (1/1) ... [2021-11-13 18:26:56,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:56" (1/1) ... [2021-11-13 18:26:56,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:56" (1/1) ... [2021-11-13 18:26:56,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:56" (1/1) ... [2021-11-13 18:26:56,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:56" (1/1) ... [2021-11-13 18:26:56,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:26:56,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:26:56,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:26:56,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:26:56,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:56" (1/1) ... [2021-11-13 18:26:56,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:26:56,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:26:56,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:26:56,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:26:56,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:26:56,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:26:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:26:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-11-13 18:26:56,805 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-11-13 18:26:56,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:26:58,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:26:58,011 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:26:58,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:26:58 BoogieIcfgContainer [2021-11-13 18:26:58,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:26:58,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:26:58,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:26:58,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:26:58,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:26:55" (1/3) ... [2021-11-13 18:26:58,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554a797b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:26:58, skipping insertion in model container [2021-11-13 18:26:58,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:56" (2/3) ... [2021-11-13 18:26:58,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554a797b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:26:58, skipping insertion in model container [2021-11-13 18:26:58,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:26:58" (3/3) ... [2021-11-13 18:26:58,024 INFO L111 eAbstractionObserver]: Analyzing ICFG Dubois-060.c [2021-11-13 18:26:58,033 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:26:58,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:26:58,099 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:26:58,105 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:26:58,105 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:26:58,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 671 states, 188 states have (on average 1.0106382978723405) internal successors, (190), 189 states have internal predecessors, (190), 480 states have call successors, (480), 1 states have call predecessors, (480), 1 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) [2021-11-13 18:26:58,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2584 [2021-11-13 18:26:58,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:26:58,366 INFO L514 BasicCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:26:58,367 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:26:58,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:26:58,374 INFO L85 PathProgramCache]: Analyzing trace with hash -333670346, now seen corresponding path program 1 times [2021-11-13 18:26:58,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:26:58,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809403319] [2021-11-13 18:26:58,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:26:58,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:27:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:27:01,625 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:27:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:27:05,502 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:27:05,504 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 18:27:05,505 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:27:05,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:27:05,512 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-13 18:27:05,520 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:27:05,748 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getProgramExecutionAsString(UnprovableResult.java:132) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getLongDescription(UnprovableResult.java:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 18:27:05,752 INFO L158 Benchmark]: Toolchain (without parser) took 10257.86ms. Allocated memory was 86.0MB in the beginning and 348.1MB in the end (delta: 262.1MB). Free memory was 49.5MB in the beginning and 136.0MB in the end (delta: -86.5MB). Peak memory consumption was 219.6MB. Max. memory is 16.1GB. [2021-11-13 18:27:05,753 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory was 58.5MB in the beginning and 58.5MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:27:05,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 908.60ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 49.4MB in the beginning and 49.4MB in the end (delta: -54.0kB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2021-11-13 18:27:05,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 202.19ms. Allocated memory is still 121.6MB. Free memory was 49.4MB in the beginning and 85.8MB in the end (delta: -36.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-11-13 18:27:05,755 INFO L158 Benchmark]: Boogie Preprocessor took 113.89ms. Allocated memory is still 121.6MB. Free memory was 85.8MB in the beginning and 78.2MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 18:27:05,756 INFO L158 Benchmark]: RCFGBuilder took 1287.38ms. Allocated memory is still 121.6MB. Free memory was 78.2MB in the beginning and 76.8MB in the end (delta: 1.4MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2021-11-13 18:27:05,757 INFO L158 Benchmark]: TraceAbstraction took 7733.84ms. Allocated memory was 121.6MB in the beginning and 348.1MB in the end (delta: 226.5MB). Free memory was 76.8MB in the beginning and 136.0MB in the end (delta: -59.2MB). Peak memory consumption was 210.7MB. Max. memory is 16.1GB. [2021-11-13 18:27:05,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory was 58.5MB in the beginning and 58.5MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 908.60ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 49.4MB in the beginning and 49.4MB in the end (delta: -54.0kB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 202.19ms. Allocated memory is still 121.6MB. Free memory was 49.4MB in the beginning and 85.8MB in the end (delta: -36.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 113.89ms. Allocated memory is still 121.6MB. Free memory was 85.8MB in the beginning and 78.2MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1287.38ms. Allocated memory is still 121.6MB. Free memory was 78.2MB in the beginning and 76.8MB in the end (delta: 1.4MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7733.84ms. Allocated memory was 121.6MB in the beginning and 348.1MB in the end (delta: 226.5MB). Free memory was 76.8MB in the beginning and 136.0MB in the end (delta: -59.2MB). Peak memory consumption was 210.7MB. 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 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-13 18:27:05,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/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_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/Dubois-060.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c6c6bcdd72ea020631275d05f53f3a85eefff832aea60657c8517ea7b38d6be --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:27:08,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:27:08,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:27:08,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:27:08,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:27:08,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:27:08,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:27:08,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:27:08,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:27:08,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:27:08,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:27:08,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:27:08,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:27:08,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:27:08,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:27:08,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:27:08,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:27:08,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:27:08,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:27:08,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:27:08,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:27:08,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:27:08,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:27:08,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:27:08,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:27:08,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:27:08,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:27:08,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:27:08,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:27:08,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:27:08,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:27:08,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:27:08,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:27:08,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:27:08,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:27:08,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:27:08,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:27:08,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:27:08,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:27:08,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:27:08,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:27:08,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-13 18:27:08,528 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:27:08,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:27:08,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:27:08,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:27:08,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:27:08,532 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:27:08,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:27:08,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:27:08,534 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:27:08,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:27:08,535 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:27:08,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:27:08,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:27:08,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:27:08,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:27:08,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:27:08,537 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 18:27:08,537 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 18:27:08,537 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:27:08,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:27:08,538 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:27:08,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:27:08,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:27:08,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:27:08,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:27:08,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:27:08,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:27:08,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:27:08,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:27:08,540 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 18:27:08,540 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 18:27:08,541 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:27:08,541 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:27:08,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:27:08,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:27:08,542 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 18:27:08,542 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_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c6c6bcdd72ea020631275d05f53f3a85eefff832aea60657c8517ea7b38d6be [2021-11-13 18:27:08,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:27:09,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:27:09,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:27:09,012 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:27:09,016 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:27:09,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/xcsp/Dubois-060.c [2021-11-13 18:27:09,107 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/data/7bf79b556/ab89bd8da5fb4348a500f3236b5120fc/FLAG4980bc0ea [2021-11-13 18:27:09,727 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:27:09,728 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/sv-benchmarks/c/xcsp/Dubois-060.c [2021-11-13 18:27:09,744 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/data/7bf79b556/ab89bd8da5fb4348a500f3236b5120fc/FLAG4980bc0ea [2021-11-13 18:27:09,969 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/data/7bf79b556/ab89bd8da5fb4348a500f3236b5120fc [2021-11-13 18:27:09,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:27:09,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:27:09,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:27:09,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:27:09,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:27:09,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:27:09" (1/1) ... [2021-11-13 18:27:09,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a68aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:09, skipping insertion in model container [2021-11-13 18:27:09,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:27:09" (1/1) ... [2021-11-13 18:27:09,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:27:10,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:27:10,545 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_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/sv-benchmarks/c/xcsp/Dubois-060.c[42720,42733] [2021-11-13 18:27:10,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:27:10,638 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:27:10,761 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_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/sv-benchmarks/c/xcsp/Dubois-060.c[42720,42733] [2021-11-13 18:27:10,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:27:10,783 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:27:10,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:10 WrapperNode [2021-11-13 18:27:10,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:27:10,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:27:10,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:27:10,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:27:10,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:10" (1/1) ... [2021-11-13 18:27:10,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:10" (1/1) ... [2021-11-13 18:27:11,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:27:11,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:27:11,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:27:11,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:27:11,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:10" (1/1) ... [2021-11-13 18:27:11,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:10" (1/1) ... [2021-11-13 18:27:11,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:10" (1/1) ... [2021-11-13 18:27:11,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:10" (1/1) ... [2021-11-13 18:27:11,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:10" (1/1) ... [2021-11-13 18:27:11,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:10" (1/1) ... [2021-11-13 18:27:11,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:10" (1/1) ... [2021-11-13 18:27:11,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:27:11,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:27:11,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:27:11,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:27:11,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:10" (1/1) ... [2021-11-13 18:27:11,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:27:11,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:27:11,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:27:11,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:27:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:27:11,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:27:11,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 18:27:11,211 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-11-13 18:27:11,211 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-11-13 18:27:11,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:27:12,557 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:27:12,558 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:27:12,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:27:12 BoogieIcfgContainer [2021-11-13 18:27:12,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:27:12,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:27:12,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:27:12,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:27:12,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:27:09" (1/3) ... [2021-11-13 18:27:12,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb9eaa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:27:12, skipping insertion in model container [2021-11-13 18:27:12,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:10" (2/3) ... [2021-11-13 18:27:12,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb9eaa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:27:12, skipping insertion in model container [2021-11-13 18:27:12,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:27:12" (3/3) ... [2021-11-13 18:27:12,571 INFO L111 eAbstractionObserver]: Analyzing ICFG Dubois-060.c [2021-11-13 18:27:12,577 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:27:12,577 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:27:12,648 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:27:12,658 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:27:12,659 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:27:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 671 states, 188 states have (on average 1.0106382978723405) internal successors, (190), 189 states have internal predecessors, (190), 480 states have call successors, (480), 1 states have call predecessors, (480), 1 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) [2021-11-13 18:27:13,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2584 [2021-11-13 18:27:13,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:27:13,013 INFO L514 BasicCegarLoop]: trace histogram [480, 480, 480, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:27:13,013 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:27:13,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:27:13,020 INFO L85 PathProgramCache]: Analyzing trace with hash -333670346, now seen corresponding path program 1 times [2021-11-13 18:27:13,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:27:13,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798130199] [2021-11-13 18:27:13,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:27:13,046 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:27:13,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:27:13,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:27:13,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96bb1bf1-8bc7-48d5-a337-2ee64b4fdf69/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process