./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem102_label20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem102_label20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF --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 2f1bf06c80189abb072a1fbfff954b30261511917db265e4488ed767b820bea3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:39:15,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:39:15,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:39:15,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:39:15,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:39:15,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:39:15,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:39:15,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:39:15,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:39:15,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:39:15,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:39:15,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:39:15,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:39:15,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:39:15,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:39:15,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:39:15,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:39:15,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:39:15,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:39:15,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:39:15,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:39:15,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:39:15,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:39:15,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:39:15,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:39:15,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:39:15,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:39:15,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:39:15,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:39:15,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:39:15,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:39:15,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:39:15,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:39:15,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:39:15,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:39:15,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:39:15,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:39:15,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:39:15,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:39:15,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:39:15,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:39:15,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:39:15,321 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:39:15,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:39:15,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:39:15,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:39:15,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:39:15,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:39:15,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:39:15,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:39:15,332 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:39:15,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:39:15,334 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:39:15,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:39:15,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:39:15,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:39:15,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:39:15,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:39:15,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:39:15,336 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:39:15,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:39:15,336 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:39:15,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:39:15,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:39:15,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:39:15,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:39:15,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:39:15,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:39:15,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:39:15,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:39:15,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:39:15,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:39:15,341 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:39:15,341 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:39:15,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:39:15,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:39:15,342 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_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1bf06c80189abb072a1fbfff954b30261511917db265e4488ed767b820bea3 [2021-11-20 07:39:15,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:39:15,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:39:15,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:39:15,686 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:39:15,687 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:39:15,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/eca-programs/Problem102_label20.c [2021-11-20 07:39:15,764 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/data/606f4526f/2489c4f5b26941d1a1d3df8dcad258b8/FLAGda4a1a89b [2021-11-20 07:39:19,519 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:39:19,520 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/sv-benchmarks/c/eca-programs/Problem102_label20.c [2021-11-20 07:39:19,822 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/data/606f4526f/2489c4f5b26941d1a1d3df8dcad258b8/FLAGda4a1a89b [2021-11-20 07:39:20,172 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/data/606f4526f/2489c4f5b26941d1a1d3df8dcad258b8 [2021-11-20 07:39:20,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:39:20,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:39:20,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:39:20,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:39:20,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:39:20,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:39:20" (1/1) ... [2021-11-20 07:39:20,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc099be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:39:20, skipping insertion in model container [2021-11-20 07:39:20,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:39:20" (1/1) ... [2021-11-20 07:39:20,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:39:22,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:39:48,639 WARN L230 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_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/sv-benchmarks/c/eca-programs/Problem102_label20.c[5711549,5711562] [2021-11-20 07:39:48,779 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:39:48,789 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:40:02,802 WARN L230 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_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/sv-benchmarks/c/eca-programs/Problem102_label20.c[5711549,5711562] [2021-11-20 07:40:02,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:40:07,979 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:40:07,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:40:07 WrapperNode [2021-11-20 07:40:07,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:40:07,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:40:07,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:40:07,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:40:07,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:40:07" (1/1) ... [2021-11-20 07:40:09,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:40:07" (1/1) ... [2021-11-20 07:40:14,595 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184295 [2021-11-20 07:40:14,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:40:14,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:40:14,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:40:14,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:40:14,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:40:07" (1/1) ... [2021-11-20 07:40:14,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:40:07" (1/1) ... [2021-11-20 07:40:15,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:40:07" (1/1) ... [2021-11-20 07:40:15,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:40:07" (1/1) ... [2021-11-20 07:40:18,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:40:07" (1/1) ... [2021-11-20 07:40:19,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:40:07" (1/1) ... [2021-11-20 07:40:19,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:40:07" (1/1) ... [2021-11-20 07:40:20,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:40:20,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:40:20,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:40:20,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:40:20,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:40:07" (1/1) ... [2021-11-20 07:40:20,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:40:20,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:40:20,388 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:40:20,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5e1c01-4731-4ff0-96b6-293b2fecb4b2/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:40:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:40:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:40:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:40:20,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:40:20,753 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:40:20,755 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:41:30,996 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:41:31,116 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:41:31,116 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 07:41:31,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:41:31 BoogieIcfgContainer [2021-11-20 07:41:31,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:41:31,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:41:31,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:41:31,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:41:31,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:39:20" (1/3) ... [2021-11-20 07:41:31,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67178dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:41:31, skipping insertion in model container [2021-11-20 07:41:31,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:40:07" (2/3) ... [2021-11-20 07:41:31,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67178dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:41:31, skipping insertion in model container [2021-11-20 07:41:31,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:41:31" (3/3) ... [2021-11-20 07:41:31,152 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem102_label20.c [2021-11-20 07:41:31,158 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:41:31,159 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:41:31,285 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:41:31,294 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 [2021-11-20 07:41:31,295 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:41:31,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 23215 states, 23213 states have (on average 1.8828673588075646) internal successors, (43707), 23214 states have internal predecessors, (43707), 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) [2021-11-20 07:41:34,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17888 [2021-11-20 07:41:34,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:41:34,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:41:34,369 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:41:34,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:41:34,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1375290758, now seen corresponding path program 1 times [2021-11-20 07:41:34,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:41:34,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254587649] [2021-11-20 07:41:34,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:41:34,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:41:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat