./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX --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 dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:57:58,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:57:58,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:57:58,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:57:58,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:57:58,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:57:58,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:57:58,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:57:58,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:57:58,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:57:58,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:57:58,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:57:58,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:57:58,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:57:58,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:57:58,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:57:58,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:57:58,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:57:58,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:57:58,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:57:58,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:57:58,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:57:58,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:57:58,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:57:58,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:57:58,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:57:58,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:57:58,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:57:58,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:57:58,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:57:58,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:57:58,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:57:58,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:57:58,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:57:58,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:57:58,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:57:58,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:57:58,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:57:58,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:57:58,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:57:58,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:57:58,265 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 08:57:58,290 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:57:58,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:57:58,291 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:57:58,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:57:58,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:57:58,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:57:58,294 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:57:58,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:57:58,295 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:57:58,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:57:58,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:57:58,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:57:58,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:57:58,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:57:58,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:57:58,297 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:57:58,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:57:58,298 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:57:58,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:57:58,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:57:58,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:57:58,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:57:58,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:57:58,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:57:58,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:57:58,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:57:58,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:57:58,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:57:58,302 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:57:58,302 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:57:58,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:57:58,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:57:58,303 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_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2021-11-09 08:57:58,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:57:58,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:57:58,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:57:58,583 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:57:58,584 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:57:58,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2021-11-09 08:57:58,660 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/data/650cf4c61/893ba31433804d37885c5a8786a7cdff/FLAG3c4aeb4a7 [2021-11-09 08:57:59,274 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:57:59,275 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2021-11-09 08:57:59,289 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/data/650cf4c61/893ba31433804d37885c5a8786a7cdff/FLAG3c4aeb4a7 [2021-11-09 08:57:59,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/data/650cf4c61/893ba31433804d37885c5a8786a7cdff [2021-11-09 08:57:59,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:57:59,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:57:59,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:57:59,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:57:59,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:57:59,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:57:59" (1/1) ... [2021-11-09 08:57:59,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46ef7ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:57:59, skipping insertion in model container [2021-11-09 08:57:59,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:57:59" (1/1) ... [2021-11-09 08:57:59,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:57:59,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:57:59,825 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_42738271-b818-4190-abf1-a835359def18/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2021-11-09 08:58:00,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:58:00,065 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:58:00,079 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_42738271-b818-4190-abf1-a835359def18/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2021-11-09 08:58:00,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:58:00,172 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:58:00,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:00 WrapperNode [2021-11-09 08:58:00,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:58:00,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:58:00,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:58:00,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:58:00,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:00" (1/1) ... [2021-11-09 08:58:00,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:00" (1/1) ... [2021-11-09 08:58:00,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:58:00,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:58:00,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:58:00,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:58:00,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:00" (1/1) ... [2021-11-09 08:58:00,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:00" (1/1) ... [2021-11-09 08:58:00,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:00" (1/1) ... [2021-11-09 08:58:00,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:00" (1/1) ... [2021-11-09 08:58:00,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:00" (1/1) ... [2021-11-09 08:58:00,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:00" (1/1) ... [2021-11-09 08:58:00,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:00" (1/1) ... [2021-11-09 08:58:00,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:58:00,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:58:00,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:58:00,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:58:00,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:00" (1/1) ... [2021-11-09 08:58:00,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:58:00,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:00,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:58:00,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:58:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:58:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-09 08:58:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:58:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-09 08:58:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-09 08:58:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:58:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:58:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:58:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:58:00,366 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-09 08:58:00,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:58:00,781 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-09 08:58:00,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:00 BoogieIcfgContainer [2021-11-09 08:58:00,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:58:00,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:58:00,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:58:00,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:58:00,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:57:59" (1/3) ... [2021-11-09 08:58:00,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d077988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:58:00, skipping insertion in model container [2021-11-09 08:58:00,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:00" (2/3) ... [2021-11-09 08:58:00,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d077988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:58:00, skipping insertion in model container [2021-11-09 08:58:00,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:00" (3/3) ... [2021-11-09 08:58:00,794 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2021-11-09 08:58:00,799 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-09 08:58:00,800 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:58:00,800 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 08:58:00,800 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-09 08:58:00,825 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,826 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,826 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,826 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,827 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,827 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,827 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,827 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,828 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,828 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,829 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,829 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,829 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,829 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,830 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,830 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,831 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,831 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,831 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,832 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,835 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,835 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,836 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,836 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-09 08:58:00,840 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-09 08:58:00,892 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:58:00,898 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 [2021-11-09 08:58:00,899 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-09 08:58:00,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 70 transitions, 145 flow [2021-11-09 08:58:00,979 INFO L129 PetriNetUnfolder]: 2/69 cut-off events. [2021-11-09 08:58:00,980 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 08:58:00,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 69 events. 2/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2021-11-09 08:58:00,983 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 70 transitions, 145 flow [2021-11-09 08:58:00,988 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 59 transitions, 121 flow [2021-11-09 08:58:01,005 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-11-09 08:58:01,005 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-09 08:58:01,006 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-09 08:58:01,006 INFO L254 CegarLoopForPetriNet]: 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] [2021-11-09 08:58:01,007 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-09 08:58:01,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:01,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1924446114, now seen corresponding path program 1 times [2021-11-09 08:58:01,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:01,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509117890] [2021-11-09 08:58:01,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:01,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:01,171 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:58:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:01,258 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:58:01,260 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 08:58:01,261 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:58:01,264 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-09 08:58:01,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:58:01,268 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-09 08:58:01,273 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-09 08:58:01,273 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 08:58:01,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:58:01 BasicIcfg [2021-11-09 08:58:01,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 08:58:01,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 08:58:01,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 08:58:01,316 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 08:58:01,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:00" (3/4) ... [2021-11-09 08:58:01,318 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-09 08:58:01,370 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 08:58:01,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 08:58:01,372 INFO L168 Benchmark]: Toolchain (without parser) took 1829.42 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 89.2 MB in the beginning and 68.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:01,373 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 119.5 MB. Free memory is still 72.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:58:01,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.07 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 88.9 MB in the beginning and 116.5 MB in the end (delta: -27.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:01,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.56 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 114.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:01,375 INFO L168 Benchmark]: Boogie Preprocessor took 27.35 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 113.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:01,376 INFO L168 Benchmark]: RCFGBuilder took 521.32 ms. Allocated memory is still 151.0 MB. Free memory was 113.4 MB in the beginning and 101.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:01,376 INFO L168 Benchmark]: TraceAbstraction took 529.55 ms. Allocated memory is still 151.0 MB. Free memory was 100.8 MB in the beginning and 72.4 MB in the end (delta: 28.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:01,377 INFO L168 Benchmark]: Witness Printer took 55.17 ms. Allocated memory is still 151.0 MB. Free memory was 72.4 MB in the beginning and 68.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 08:58:01,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 119.5 MB. Free memory is still 72.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 627.07 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 88.9 MB in the beginning and 116.5 MB in the end (delta: -27.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.56 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 114.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.35 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 113.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 521.32 ms. Allocated memory is still 151.0 MB. Free memory was 113.4 MB in the beginning and 101.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 529.55 ms. Allocated memory is still 151.0 MB. Free memory was 100.8 MB in the beginning and 72.4 MB in the end (delta: 28.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Witness Printer took 55.17 ms. Allocated memory is still 151.0 MB. Free memory was 72.4 MB in the beginning and 68.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; VAL [g=42] [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={7:0}, g=42] [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={7:0}, B={9:0}, g=42] [L694] 0 int r = __VERIFIER_nondet_int(); VAL [A={7:0}, B={9:0}, g=42] [L695] 0 int t; VAL [A={7:0}, B={9:0}, g=42] [L696] 0 pthread_t id; VAL [A={7:0}, B={9:0}, g=42] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={7:0}, arg={0:0}, B={9:0}, g=42] [L700] COND FALSE 0 !(\read(r)) VAL [A={7:0}, arg={0:0}, B={9:0}, g=42] [L705] 0 t = g VAL [A={7:0}, arg={0:0}, B={9:0}, g=42] [L19] COND TRUE 0 !(cond) VAL [A={7:0}, arg={0:0}, B={9:0}, g=42] [L19] 0 reach_error() VAL [A={7:0}, arg={0:0}, B={9:0}, g=42] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 81 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-09 08:58:01,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42738271-b818-4190-abf1-a835359def18/bin/uautomizer-IVEQpCNsaX/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE