./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.i --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_15e1e48b-1985-42b1-b23b-e050195690c7/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/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_15e1e48b-1985-42b1-b23b-e050195690c7/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/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_15e1e48b-1985-42b1-b23b-e050195690c7/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 5fb05d1d9f477ac46601c94c33a401c10a8ea916dae173fdeb0112a4de2b3b31 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:29:20,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:29:20,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:29:20,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:29:20,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:29:20,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:29:20,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:29:20,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:29:20,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:29:20,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:29:20,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:29:20,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:29:20,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:29:20,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:29:20,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:29:20,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:29:20,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:29:20,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:29:20,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:29:20,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:29:20,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:29:20,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:29:20,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:29:20,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:29:20,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:29:20,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:29:20,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:29:20,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:29:20,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:29:20,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:29:20,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:29:20,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:29:20,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:29:20,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:29:20,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:29:20,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:29:20,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:29:20,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:29:20,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:29:20,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:29:20,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:29:20,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 02:29:20,264 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:29:20,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:29:20,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:29:20,266 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:29:20,266 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:29:20,267 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:29:20,267 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:29:20,267 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:29:20,275 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:29:20,276 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:29:20,277 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:29:20,277 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:29:20,277 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:29:20,278 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:29:20,278 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:29:20,278 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:29:20,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:29:20,280 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:29:20,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:29:20,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:29:20,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:29:20,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:29:20,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:29:20,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:29:20,282 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:29:20,282 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:29:20,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:29:20,282 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:29:20,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:29:20,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:29:20,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:29:20,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:29:20,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:29:20,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:29:20,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:29:20,285 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:29:20,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:29:20,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:29:20,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:29:20,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:29:20,286 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_15e1e48b-1985-42b1-b23b-e050195690c7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fb05d1d9f477ac46601c94c33a401c10a8ea916dae173fdeb0112a4de2b3b31 [2021-11-13 02:29:20,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:29:20,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:29:20,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:29:20,667 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:29:20,668 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:29:20,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.i [2021-11-13 02:29:20,744 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/bin/utaipan-vmNK8stdcF/data/8b96d997c/fe73e1c57d3d44c0bfe9ae314060cc1b/FLAGd7b7a2281 [2021-11-13 02:29:21,397 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:29:21,398 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.i [2021-11-13 02:29:21,432 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/bin/utaipan-vmNK8stdcF/data/8b96d997c/fe73e1c57d3d44c0bfe9ae314060cc1b/FLAGd7b7a2281 [2021-11-13 02:29:21,642 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/bin/utaipan-vmNK8stdcF/data/8b96d997c/fe73e1c57d3d44c0bfe9ae314060cc1b [2021-11-13 02:29:21,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:29:21,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:29:21,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:29:21,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:29:21,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:29:21,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:29:21" (1/1) ... [2021-11-13 02:29:21,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e89fcf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:21, skipping insertion in model container [2021-11-13 02:29:21,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:29:21" (1/1) ... [2021-11-13 02:29:21,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:29:21,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:29:21,933 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_15e1e48b-1985-42b1-b23b-e050195690c7/sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.i[1088,1101] [2021-11-13 02:29:22,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:29:22,122 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:29:22,136 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_15e1e48b-1985-42b1-b23b-e050195690c7/sv-benchmarks/c/goblint-regression/13-privatized_37-traces-ex-4_true.i[1088,1101] [2021-11-13 02:29:22,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:29:22,216 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:29:22,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:22 WrapperNode [2021-11-13 02:29:22,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:29:22,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:29:22,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:29:22,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:29:22,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:22" (1/1) ... [2021-11-13 02:29:22,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:22" (1/1) ... [2021-11-13 02:29:22,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:29:22,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:29:22,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:29:22,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:29:22,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:22" (1/1) ... [2021-11-13 02:29:22,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:22" (1/1) ... [2021-11-13 02:29:22,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:22" (1/1) ... [2021-11-13 02:29:22,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:22" (1/1) ... [2021-11-13 02:29:22,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:22" (1/1) ... [2021-11-13 02:29:22,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:22" (1/1) ... [2021-11-13 02:29:22,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:22" (1/1) ... [2021-11-13 02:29:22,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:29:22,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:29:22,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:29:22,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:29:22,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:22" (1/1) ... [2021-11-13 02:29:22,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:29:22,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:29:22,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:29:22,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:29:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 02:29:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-13 02:29:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:29:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-13 02:29:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-13 02:29:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:29:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 02:29:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:29:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:29:22,441 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 02:29:22,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:29:22,839 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:29:22,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:29:22 BoogieIcfgContainer [2021-11-13 02:29:22,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:29:22,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:29:22,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:29:22,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:29:22,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:29:21" (1/3) ... [2021-11-13 02:29:22,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a55f0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:29:22, skipping insertion in model container [2021-11-13 02:29:22,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:22" (2/3) ... [2021-11-13 02:29:22,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a55f0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:29:22, skipping insertion in model container [2021-11-13 02:29:22,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:29:22" (3/3) ... [2021-11-13 02:29:22,860 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_37-traces-ex-4_true.i [2021-11-13 02:29:22,872 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 02:29:22,873 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:29:22,874 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 02:29:22,874 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 02:29:22,929 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,930 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,930 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,930 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,931 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,931 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,932 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,932 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,933 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,934 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,937 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,938 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,939 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,940 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,941 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,942 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,949 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,950 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,950 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,951 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,951 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,952 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 02:29:22,956 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-13 02:29:23,028 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:29:23,042 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 [2021-11-13 02:29:23,042 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 02:29:23,072 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-13 02:29:23,097 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 69 transitions, 143 flow [2021-11-13 02:29:23,101 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 69 transitions, 143 flow [2021-11-13 02:29:23,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 69 transitions, 143 flow [2021-11-13 02:29:23,171 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-11-13 02:29:23,171 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-13 02:29:23,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 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. [2021-11-13 02:29:23,179 INFO L116 LiptonReduction]: Number of co-enabled transitions 672 [2021-11-13 02:29:27,679 INFO L131 LiptonReduction]: Checked pairs total: 1836 [2021-11-13 02:29:27,679 INFO L133 LiptonReduction]: Total number of compositions: 60 [2021-11-13 02:29:27,695 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 18 transitions, 41 flow [2021-11-13 02:29:27,708 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 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) [2021-11-13 02:29:27,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 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) [2021-11-13 02:29:27,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 02:29:27,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:27,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 02:29:27,719 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 02:29:27,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:27,725 INFO L85 PathProgramCache]: Analyzing trace with hash 234849910, now seen corresponding path program 1 times [2021-11-13 02:29:27,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:29:27,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784441262] [2021-11-13 02:29:27,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:27,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:29:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:28,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:28,049 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:29:28,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784441262] [2021-11-13 02:29:28,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784441262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:29:28,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:29:28,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 02:29:28,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863999682] [2021-11-13 02:29:28,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:28,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:29:28,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:29:28,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:29:28,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:29:28,090 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-13 02:29:28,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:28,141 INFO L93 Difference]: Finished difference Result 44 states and 69 transitions. [2021-11-13 02:29:28,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:29:28,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-11-13 02:29:28,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:28,152 INFO L225 Difference]: With dead ends: 44 [2021-11-13 02:29:28,152 INFO L226 Difference]: Without dead ends: 26 [2021-11-13 02:29:28,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:29:28,161 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.60ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.06ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:28,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 17 Unknown, 0 Unchecked, 0.60ms Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 31.06ms Time] [2021-11-13 02:29:28,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-13 02:29:28,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-13 02:29:28,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.48) internal successors, (37), 25 states have internal predecessors, (37), 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) [2021-11-13 02:29:28,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 37 transitions. [2021-11-13 02:29:28,212 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 37 transitions. Word has length 5 [2021-11-13 02:29:28,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:28,212 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 37 transitions. [2021-11-13 02:29:28,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-13 02:29:28,214 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2021-11-13 02:29:28,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 02:29:28,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:28,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:28,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 02:29:28,224 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 02:29:28,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:28,230 INFO L85 PathProgramCache]: Analyzing trace with hash -560711745, now seen corresponding path program 1 times [2021-11-13 02:29:28,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:29:28,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011586386] [2021-11-13 02:29:28,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:28,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:29:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:28,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:28,359 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:29:28,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011586386] [2021-11-13 02:29:28,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011586386] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:29:28,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:29:28,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 02:29:28,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214321872] [2021-11-13 02:29:28,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:28,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:29:28,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:29:28,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:29:28,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:29:28,364 INFO L87 Difference]: Start difference. First operand 26 states and 37 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-13 02:29:28,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:28,414 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-11-13 02:29:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:29:28,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-11-13 02:29:28,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:28,416 INFO L225 Difference]: With dead ends: 19 [2021-11-13 02:29:28,416 INFO L226 Difference]: Without dead ends: 17 [2021-11-13 02:29:28,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:29:28,418 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.49ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.71ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:28,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 2 Invalid, 23 Unknown, 0 Unchecked, 0.49ms Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 46.71ms Time] [2021-11-13 02:29:28,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-13 02:29:28,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-13 02:29:28,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) [2021-11-13 02:29:28,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-11-13 02:29:28,424 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 8 [2021-11-13 02:29:28,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:28,424 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-11-13 02:29:28,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-13 02:29:28,425 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-11-13 02:29:28,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 02:29:28,425 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:28,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:28,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 02:29:28,426 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 02:29:28,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:28,427 INFO L85 PathProgramCache]: Analyzing trace with hash -168284862, now seen corresponding path program 1 times [2021-11-13 02:29:28,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:29:28,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316482912] [2021-11-13 02:29:28,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:28,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:29:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:28,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:29:28,567 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:29:28,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316482912] [2021-11-13 02:29:28,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316482912] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:29:28,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:29:28,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 02:29:28,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731911641] [2021-11-13 02:29:28,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:28,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:29:28,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:29:28,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:29:28,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:29:28,571 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-11-13 02:29:28,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:28,591 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-11-13 02:29:28,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:29:28,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-11-13 02:29:28,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:28,593 INFO L225 Difference]: With dead ends: 8 [2021-11-13 02:29:28,593 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 02:29:28,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:29:28,595 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.27ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.93ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:28,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1 Invalid, 12 Unknown, 0 Unchecked, 0.27ms Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 15.93ms Time] [2021-11-13 02:29:28,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 02:29:28,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 02:29:28,597 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) [2021-11-13 02:29:28,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 02:29:28,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-11-13 02:29:28,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:28,598 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 02:29:28,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-11-13 02:29:28,599 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 02:29:28,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 02:29:28,602 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-13 02:29:28,603 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-11-13 02:29:28,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 02:29:28,606 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-13 02:29:28,609 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 02:29:28,609 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 02:29:28,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:29:28 BasicIcfg [2021-11-13 02:29:28,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 02:29:28,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 02:29:28,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 02:29:28,614 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 02:29:28,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:29:22" (3/4) ... [2021-11-13 02:29:28,618 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 02:29:28,627 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-13 02:29:28,632 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-13 02:29:28,632 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-13 02:29:28,633 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 02:29:28,633 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 02:29:28,672 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 02:29:28,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 02:29:28,673 INFO L158 Benchmark]: Toolchain (without parser) took 7026.46ms. Allocated memory was 109.1MB in the beginning and 140.5MB in the end (delta: 31.5MB). Free memory was 70.6MB in the beginning and 82.4MB in the end (delta: -11.8MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2021-11-13 02:29:28,674 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:29:28,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 565.39ms. Allocated memory is still 109.1MB. Free memory was 70.4MB in the beginning and 75.2MB in the end (delta: -4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 02:29:28,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.21ms. Allocated memory is still 109.1MB. Free memory was 75.2MB in the beginning and 73.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:29:28,676 INFO L158 Benchmark]: Boogie Preprocessor took 30.37ms. Allocated memory is still 109.1MB. Free memory was 73.4MB in the beginning and 72.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:29:28,676 INFO L158 Benchmark]: RCFGBuilder took 534.35ms. Allocated memory is still 109.1MB. Free memory was 72.3MB in the beginning and 60.5MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 02:29:28,677 INFO L158 Benchmark]: TraceAbstraction took 5768.78ms. Allocated memory was 109.1MB in the beginning and 140.5MB in the end (delta: 31.5MB). Free memory was 60.1MB in the beginning and 85.5MB in the end (delta: -25.4MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-11-13 02:29:28,678 INFO L158 Benchmark]: Witness Printer took 58.65ms. Allocated memory is still 140.5MB. Free memory was 85.5MB in the beginning and 82.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 02:29:28,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 565.39ms. Allocated memory is still 109.1MB. Free memory was 70.4MB in the beginning and 75.2MB in the end (delta: -4.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.21ms. Allocated memory is still 109.1MB. Free memory was 75.2MB in the beginning and 73.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.37ms. Allocated memory is still 109.1MB. Free memory was 73.4MB in the beginning and 72.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 534.35ms. Allocated memory is still 109.1MB. Free memory was 72.3MB in the beginning and 60.5MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5768.78ms. Allocated memory was 109.1MB in the beginning and 140.5MB in the end (delta: 31.5MB). Free memory was 60.1MB in the beginning and 85.5MB in the end (delta: -25.4MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Witness Printer took 58.65ms. Allocated memory is still 140.5MB. Free memory was 85.5MB in the beginning and 82.4MB in the end (delta: 3.1MB). 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: 4.6s, 72 PlacesBefore, 21 PlacesAfterwards, 69 TransitionsBefore, 18 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 0 ChoiceCompositions, 60 TotalNumberOfCompositions, 1836 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 996, positive: 850, positive conditional: 0, positive unconditional: 850, negative: 146, negative conditional: 0, negative unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 569, positive: 530, positive conditional: 0, positive unconditional: 530, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 569, positive: 474, positive conditional: 0, positive unconditional: 474, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 95, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 219, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 125, negative conditional: 0, negative unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 996, positive: 320, positive conditional: 0, positive unconditional: 320, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 569, unknown conditional: 0, unknown unconditional: 569] , Statistics on independence cache: Total cache size (in pairs): 74, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - 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: 19]: 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 3 procedures, 85 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 93.70ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 80.70ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 7 mSDtfsCounter, 42 mSolverCounterSat, 1.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 115 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! [2021-11-13 02:29:28,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15e1e48b-1985-42b1-b23b-e050195690c7/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