./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.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_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:11:39,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:11:39,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:11:39,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:11:39,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:11:39,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:11:39,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:11:39,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:11:39,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:11:39,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:11:39,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:11:39,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:11:39,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:11:39,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:11:39,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:11:39,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:11:39,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:11:39,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:11:39,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:11:39,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:11:39,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:11:39,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:11:39,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:11:39,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:11:39,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:11:39,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:11:39,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:11:39,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:11:39,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:11:39,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:11:39,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:11:39,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:11:39,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:11:39,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:11:39,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:11:39,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:11:39,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:11:39,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:11:39,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:11:39,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:11:39,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:11:39,284 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:11:39,335 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:11:39,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:11:39,337 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:11:39,337 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:11:39,337 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:11:39,337 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:11:39,338 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:11:39,338 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:11:39,338 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:11:39,338 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:11:39,345 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:11:39,345 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:11:39,346 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:11:39,346 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:11:39,346 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:11:39,346 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:11:39,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:11:39,347 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:11:39,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:11:39,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:11:39,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:11:39,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:11:39,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:11:39,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:11:39,348 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:11:39,349 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:11:39,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:11:39,349 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:11:39,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:11:39,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:11:39,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:11:39,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:11:39,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:11:39,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:11:39,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:11:39,353 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:11:39,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:11:39,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:11:39,353 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:11:39,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:11:39,353 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e [2021-11-12 23:11:39,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:11:39,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:11:39,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:11:39,670 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:11:39,671 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:11:39,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2021-11-12 23:11:39,756 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/data/36cf910b5/4bc8ec18b6aa4a31b850fdac1d70fe5e/FLAG131522940 [2021-11-12 23:11:40,189 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:11:40,189 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2021-11-12 23:11:40,195 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/data/36cf910b5/4bc8ec18b6aa4a31b850fdac1d70fe5e/FLAG131522940 [2021-11-12 23:11:40,598 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/data/36cf910b5/4bc8ec18b6aa4a31b850fdac1d70fe5e [2021-11-12 23:11:40,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:11:40,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:11:40,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:11:40,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:11:40,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:11:40,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:11:40" (1/1) ... [2021-11-12 23:11:40,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@175ba7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:40, skipping insertion in model container [2021-11-12 23:11:40,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:11:40" (1/1) ... [2021-11-12 23:11:40,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:11:40,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:11:40,825 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_9162f213-9dc8-4648-8929-9dfc5a4ec45a/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[3134,3147] [2021-11-12 23:11:40,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:11:40,836 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:11:40,857 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_9162f213-9dc8-4648-8929-9dfc5a4ec45a/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[3134,3147] [2021-11-12 23:11:40,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:11:40,871 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:11:40,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:40 WrapperNode [2021-11-12 23:11:40,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:11:40,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:11:40,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:11:40,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:11:40,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:40" (1/1) ... [2021-11-12 23:11:40,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:40" (1/1) ... [2021-11-12 23:11:40,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:11:40,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:11:40,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:11:40,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:11:40,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:40" (1/1) ... [2021-11-12 23:11:40,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:40" (1/1) ... [2021-11-12 23:11:40,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:40" (1/1) ... [2021-11-12 23:11:40,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:40" (1/1) ... [2021-11-12 23:11:40,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:40" (1/1) ... [2021-11-12 23:11:40,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:40" (1/1) ... [2021-11-12 23:11:40,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:40" (1/1) ... [2021-11-12 23:11:40,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:11:40,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:11:40,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:11:40,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:11:40,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:40" (1/1) ... [2021-11-12 23:11:40,951 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:11:40,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:11:40,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:11:40,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:11:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-12 23:11:41,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-12 23:11:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-12 23:11:41,016 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-12 23:11:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:11:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:11:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:11:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-12 23:11:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-12 23:11:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:11:41,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:11:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:11:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:11:41,018 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 23:11:41,499 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:11:41,499 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:11:41,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:11:41 BoogieIcfgContainer [2021-11-12 23:11:41,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:11:41,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:11:41,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:11:41,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:11:41,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:11:40" (1/3) ... [2021-11-12 23:11:41,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0a547b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:11:41, skipping insertion in model container [2021-11-12 23:11:41,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:11:40" (2/3) ... [2021-11-12 23:11:41,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0a547b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:11:41, skipping insertion in model container [2021-11-12 23:11:41,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:11:41" (3/3) ... [2021-11-12 23:11:41,510 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2021-11-12 23:11:41,516 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 23:11:41,516 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:11:41,516 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:11:41,516 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 23:11:41,558 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,559 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,559 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,559 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,560 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,560 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,560 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,561 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,561 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,561 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,561 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,563 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,567 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,568 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,568 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,568 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,568 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,574 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,574 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,575 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,575 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,578 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,580 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,586 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,586 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,587 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,588 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,588 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,588 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,589 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,589 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,589 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,589 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:11:41,592 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-12 23:11:41,650 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:11:41,657 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:11:41,658 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 23:11:41,678 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:11:41,690 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 139 transitions, 294 flow [2021-11-12 23:11:41,693 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 139 transitions, 294 flow [2021-11-12 23:11:41,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 139 transitions, 294 flow [2021-11-12 23:11:41,776 INFO L129 PetriNetUnfolder]: 9/137 cut-off events. [2021-11-12 23:11:41,777 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-12 23:11:41,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 137 events. 9/137 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2021-11-12 23:11:41,784 INFO L116 LiptonReduction]: Number of co-enabled transitions 452 [2021-11-12 23:11:46,840 INFO L131 LiptonReduction]: Checked pairs total: 2395 [2021-11-12 23:11:46,840 INFO L133 LiptonReduction]: Total number of compositions: 143 [2021-11-12 23:11:46,851 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 25 transitions, 66 flow [2021-11-12 23:11:46,869 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 110 states, 109 states have (on average 2.3486238532110093) internal successors, (256), 109 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:11:46,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 109 states have (on average 2.3486238532110093) internal successors, (256), 109 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:11:46,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-12 23:11:46,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:46,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:46,881 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-12 23:11:46,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:46,886 INFO L85 PathProgramCache]: Analyzing trace with hash 2139481671, now seen corresponding path program 1 times [2021-11-12 23:11:46,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:46,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885531471] [2021-11-12 23:11:46,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:46,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:47,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:47,205 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:47,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885531471] [2021-11-12 23:11:47,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885531471] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:47,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:47,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-12 23:11:47,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129780044] [2021-11-12 23:11:47,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:47,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:11:47,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:47,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:11:47,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:11:47,246 INFO L87 Difference]: Start difference. First operand has 110 states, 109 states have (on average 2.3486238532110093) internal successors, (256), 109 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:11:47,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:47,417 INFO L93 Difference]: Finished difference Result 118 states and 261 transitions. [2021-11-12 23:11:47,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:11:47,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-12 23:11:47,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:47,428 INFO L225 Difference]: With dead ends: 118 [2021-11-12 23:11:47,428 INFO L226 Difference]: Without dead ends: 118 [2021-11-12 23:11:47,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:11:47,432 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 44 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.34ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.78ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:47,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 3 Invalid, 129 Unknown, 0 Unchecked, 3.34ms Time], IncrementalHoareTripleChecker [16 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 111.78ms Time] [2021-11-12 23:11:47,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-12 23:11:47,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108. [2021-11-12 23:11:47,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 2.2523364485981308) internal successors, (241), 107 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:11:47,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 241 transitions. [2021-11-12 23:11:47,473 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 241 transitions. Word has length 17 [2021-11-12 23:11:47,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:47,474 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 241 transitions. [2021-11-12 23:11:47,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:11:47,474 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 241 transitions. [2021-11-12 23:11:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-12 23:11:47,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:47,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:47,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:11:47,477 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-12 23:11:47,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:47,478 INFO L85 PathProgramCache]: Analyzing trace with hash 715495451, now seen corresponding path program 2 times [2021-11-12 23:11:47,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:47,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768411006] [2021-11-12 23:11:47,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:47,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:47,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:47,672 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:47,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768411006] [2021-11-12 23:11:47,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768411006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:47,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:47,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:11:47,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586702282] [2021-11-12 23:11:47,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:47,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:11:47,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:47,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:11:47,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:11:47,676 INFO L87 Difference]: Start difference. First operand 108 states and 241 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:11:47,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:47,769 INFO L93 Difference]: Finished difference Result 119 states and 256 transitions. [2021-11-12 23:11:47,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:11:47,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-12 23:11:47,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:47,770 INFO L225 Difference]: With dead ends: 119 [2021-11-12 23:11:47,770 INFO L226 Difference]: Without dead ends: 30 [2021-11-12 23:11:47,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:11:47,772 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.72ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.66ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:47,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 4 Invalid, 43 Unknown, 0 Unchecked, 0.72ms Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 60.66ms Time] [2021-11-12 23:11:47,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-12 23:11:47,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-11-12 23:11:47,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 29 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:11:47,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2021-11-12 23:11:47,788 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 41 transitions. Word has length 17 [2021-11-12 23:11:47,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:47,789 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 41 transitions. [2021-11-12 23:11:47,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:11:47,789 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2021-11-12 23:11:47,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-12 23:11:47,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:11:47,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:11:47,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:11:47,791 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-12 23:11:47,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:11:47,792 INFO L85 PathProgramCache]: Analyzing trace with hash 740840564, now seen corresponding path program 1 times [2021-11-12 23:11:47,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:11:47,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192085677] [2021-11-12 23:11:47,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:11:47,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:11:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:11:47,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:47,924 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:11:47,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192085677] [2021-11-12 23:11:47,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192085677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:11:47,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:11:47,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 23:11:47,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007622269] [2021-11-12 23:11:47,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:11:47,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:11:47,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:11:47,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:11:47,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:47,929 INFO L87 Difference]: Start difference. First operand 30 states and 41 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:11:47,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:11:47,940 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2021-11-12 23:11:47,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:11:47,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-12 23:11:47,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:11:47,941 INFO L225 Difference]: With dead ends: 14 [2021-11-12 23:11:47,942 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:11:47,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:11:47,945 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.06ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.36ms IncrementalHoareTripleChecker+Time [2021-11-12 23:11:47,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 8 Unknown, 0 Unchecked, 0.06ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 10.36ms Time] [2021-11-12 23:11:47,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:11:47,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:11:47,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:11:47,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:11:47,949 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-11-12 23:11:47,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:11:47,950 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:11:47,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:11:47,950 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:11:47,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:11:47,952 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-12 23:11:47,953 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-11-12 23:11:47,953 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2021-11-12 23:11:47,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 23:11:47,959 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2021-11-12 23:11:47,962 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 23:11:47,962 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:11:47,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:11:47 BasicIcfg [2021-11-12 23:11:47,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:11:47,971 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:11:47,971 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:11:47,971 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:11:47,972 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:11:41" (3/4) ... [2021-11-12 23:11:47,974 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 23:11:47,983 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-12 23:11:47,983 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-12 23:11:47,990 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-11-12 23:11:47,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-12 23:11:47,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-12 23:11:47,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 23:11:48,040 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 23:11:48,040 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:11:48,041 INFO L158 Benchmark]: Toolchain (without parser) took 7438.52ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 101.9MB in the beginning and 69.5MB in the end (delta: 32.4MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2021-11-12 23:11:48,041 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 58.1MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:11:48,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.71ms. Allocated memory is still 136.3MB. Free memory was 101.6MB in the beginning and 112.1MB in the end (delta: -10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:11:48,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.22ms. Allocated memory is still 136.3MB. Free memory was 112.1MB in the beginning and 110.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:11:48,047 INFO L158 Benchmark]: Boogie Preprocessor took 24.68ms. Allocated memory is still 136.3MB. Free memory was 110.0MB in the beginning and 108.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:11:48,047 INFO L158 Benchmark]: RCFGBuilder took 559.50ms. Allocated memory is still 136.3MB. Free memory was 108.6MB in the beginning and 93.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-12 23:11:48,048 INFO L158 Benchmark]: TraceAbstraction took 6466.55ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 92.6MB in the beginning and 73.7MB in the end (delta: 18.9MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2021-11-12 23:11:48,048 INFO L158 Benchmark]: Witness Printer took 69.46ms. Allocated memory is still 163.6MB. Free memory was 73.7MB in the beginning and 69.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 23:11:48,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 58.1MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.71ms. Allocated memory is still 136.3MB. Free memory was 101.6MB in the beginning and 112.1MB in the end (delta: -10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.22ms. Allocated memory is still 136.3MB. Free memory was 112.1MB in the beginning and 110.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.68ms. Allocated memory is still 136.3MB. Free memory was 110.0MB in the beginning and 108.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 559.50ms. Allocated memory is still 136.3MB. Free memory was 108.6MB in the beginning and 93.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6466.55ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 92.6MB in the beginning and 73.7MB in the end (delta: 18.9MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * Witness Printer took 69.46ms. Allocated memory is still 163.6MB. Free memory was 73.7MB in the beginning and 69.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.1s, 137 PlacesBefore, 30 PlacesAfterwards, 139 TransitionsBefore, 25 TransitionsAfterwards, 452 CoEnabledTransitionPairs, 8 FixpointIterations, 96 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 8 ConcurrentYvCompositions, 7 ChoiceCompositions, 143 TotalNumberOfCompositions, 2395 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1247, positive: 1063, positive conditional: 0, positive unconditional: 1063, negative: 184, negative conditional: 0, negative unconditional: 184, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 387, positive: 354, positive conditional: 0, positive unconditional: 354, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 387, positive: 343, positive conditional: 0, positive unconditional: 343, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 158, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1247, positive: 709, positive conditional: 0, positive unconditional: 709, negative: 151, negative conditional: 0, negative unconditional: 151, unknown: 387, unknown conditional: 0, unknown unconditional: 387] , Statistics on independence cache: Total cache size (in pairs): 113, Positive cache size: 93, Positive conditional cache size: 0, Positive unconditional cache size: 93, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 115]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 152 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 182.80ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 149.48ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 161 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 4 mSDtfsCounter, 161 mSolverCounterSat, 4.11ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 275 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-12 23:11:48,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9162f213-9dc8-4648-8929-9dfc5a4ec45a/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE