./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_1-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_1-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI --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 3f78296dc1cf80b4adc36195bb88732ccad57c55 ......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:21:38,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:21:38,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:21:38,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:21:38,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:21:38,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:21:38,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:21:38,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:21:38,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:21:38,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:21:38,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:21:38,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:21:38,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:21:38,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:21:38,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:21:38,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:21:38,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:21:38,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:21:38,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:21:38,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:21:38,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:21:38,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:21:38,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:21:38,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:21:38,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:21:38,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:21:38,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:21:38,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:21:38,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:21:38,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:21:38,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:21:38,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:21:38,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:21:38,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:21:38,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:21:38,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:21:38,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:21:38,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:21:38,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:21:38,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:21:38,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:21:38,609 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:21:38,658 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:21:38,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:21:38,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:21:38,661 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:21:38,661 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:21:38,662 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:21:38,662 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:21:38,662 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:21:38,663 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:21:38,663 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:21:38,664 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:21:38,665 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:21:38,665 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:21:38,665 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:21:38,665 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:21:38,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:21:38,667 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:21:38,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:21:38,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:21:38,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:21:38,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:21:38,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:21:38,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:21:38,669 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:21:38,669 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:21:38,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:21:38,669 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:21:38,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:21:38,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:21:38,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:21:38,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:38,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:21:38,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:21:38,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:21:38,673 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:21:38,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:21:38,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:21:38,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:21:38,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:21:38,675 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_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f78296dc1cf80b4adc36195bb88732ccad57c55 [2021-10-11 02:21:39,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:21:39,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:21:39,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:21:39,056 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:21:39,057 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:21:39,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/ldv-races/race-1_1-join.i [2021-10-11 02:21:39,157 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI/data/3dacce34e/c5753512ccb84f3fb52b33fdda36dd04/FLAG8860483c2 [2021-10-11 02:21:39,916 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:21:39,918 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/sv-benchmarks/c/ldv-races/race-1_1-join.i [2021-10-11 02:21:39,959 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI/data/3dacce34e/c5753512ccb84f3fb52b33fdda36dd04/FLAG8860483c2 [2021-10-11 02:21:40,037 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI/data/3dacce34e/c5753512ccb84f3fb52b33fdda36dd04 [2021-10-11 02:21:40,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:21:40,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:21:40,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:40,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:21:40,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:21:40,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:40" (1/1) ... [2021-10-11 02:21:40,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701ae4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:40, skipping insertion in model container [2021-10-11 02:21:40,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:40" (1/1) ... [2021-10-11 02:21:40,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:21:40,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:21:41,465 WARN L226 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_d930cd72-e076-4f77-9b07-e0eec02e5836/sv-benchmarks/c/ldv-races/race-1_1-join.i[76068,76081] [2021-10-11 02:21:41,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:41,510 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:21:41,590 WARN L226 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_d930cd72-e076-4f77-9b07-e0eec02e5836/sv-benchmarks/c/ldv-races/race-1_1-join.i[76068,76081] [2021-10-11 02:21:41,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:42,082 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:21:42,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:42 WrapperNode [2021-10-11 02:21:42,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:42,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:42,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:21:42,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:21:42,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:42" (1/1) ... [2021-10-11 02:21:42,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:42" (1/1) ... [2021-10-11 02:21:42,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:42,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:21:42,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:21:42,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:21:42,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:42" (1/1) ... [2021-10-11 02:21:42,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:42" (1/1) ... [2021-10-11 02:21:42,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:42" (1/1) ... [2021-10-11 02:21:42,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:42" (1/1) ... [2021-10-11 02:21:42,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:42" (1/1) ... [2021-10-11 02:21:42,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:42" (1/1) ... [2021-10-11 02:21:42,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:42" (1/1) ... [2021-10-11 02:21:42,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:21:42,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:21:42,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:21:42,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:21:42,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:42" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:21:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:21:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-11 02:21:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-11 02:21:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:21:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:21:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:21:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-11 02:21:42,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-11 02:21:42,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:21:42,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:21:42,424 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 02:21:43,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:21:43,090 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-11 02:21:43,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:43 BoogieIcfgContainer [2021-10-11 02:21:43,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:21:43,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:21:43,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:21:43,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:21:43,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:21:40" (1/3) ... [2021-10-11 02:21:43,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b30119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:43, skipping insertion in model container [2021-10-11 02:21:43,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:42" (2/3) ... [2021-10-11 02:21:43,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b30119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:43, skipping insertion in model container [2021-10-11 02:21:43,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:43" (3/3) ... [2021-10-11 02:21:43,104 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2021-10-11 02:21:43,121 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 02:21:43,122 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:21:43,126 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-10-11 02:21:43,127 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:21:43,156 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,157 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,157 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,157 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,158 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,158 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,160 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,160 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,160 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,160 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,161 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,161 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,161 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,161 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,162 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,162 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,162 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,162 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,163 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,163 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,163 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,164 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,164 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,166 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,167 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,167 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,167 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,167 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,168 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,168 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:21:43,175 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-11 02:21:43,187 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-11 02:21:43,207 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:21:43,208 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:21:43,208 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:21:43,208 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:21:43,208 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:21:43,208 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:21:43,208 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:21:43,209 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:21:43,222 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:21:43,224 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 92 transitions, 192 flow [2021-10-11 02:21:43,228 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 92 transitions, 192 flow [2021-10-11 02:21:43,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 92 transitions, 192 flow [2021-10-11 02:21:43,276 INFO L129 PetriNetUnfolder]: 5/103 cut-off events. [2021-10-11 02:21:43,277 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-11 02:21:43,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 5/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 178 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 58. Up to 3 conditions per place. [2021-10-11 02:21:43,283 INFO L116 LiptonReduction]: Number of co-enabled transitions 420 [2021-10-11 02:21:46,580 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-10-11 02:21:46,809 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-10-11 02:21:47,031 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-10-11 02:21:47,158 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-10-11 02:21:47,268 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-10-11 02:21:47,702 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-10-11 02:21:47,828 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-10-11 02:21:48,111 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2021-10-11 02:21:48,314 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-10-11 02:21:48,543 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-10-11 02:21:48,763 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-10-11 02:21:48,984 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-10-11 02:21:49,201 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-10-11 02:21:49,507 WARN L197 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 108 [2021-10-11 02:21:49,625 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-10-11 02:21:49,959 WARN L197 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 117 [2021-10-11 02:21:50,112 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-10-11 02:21:50,114 INFO L131 LiptonReduction]: Checked pairs total: 378 [2021-10-11 02:21:50,114 INFO L133 LiptonReduction]: Total number of compositions: 113 [2021-10-11 02:21:50,119 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 16 places, 14 transitions, 36 flow [2021-10-11 02:21:50,125 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2021-10-11 02:21:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2021-10-11 02:21:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-11 02:21:50,130 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:50,131 INFO L422 BasicCegarLoop]: trace histogram [1] [2021-10-11 02:21:50,131 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:50,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:50,137 INFO L82 PathProgramCache]: Analyzing trace with hash 374, now seen corresponding path program 1 times [2021-10-11 02:21:50,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:50,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588976007] [2021-10-11 02:21:50,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:50,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:50,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588976007] [2021-10-11 02:21:50,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:50,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-10-11 02:21:50,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701695924] [2021-10-11 02:21:50,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:21:50,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:50,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:21:50,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:21:50,435 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2021-10-11 02:21:50,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:50,455 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2021-10-11 02:21:50,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:21:50,457 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2021-10-11 02:21:50,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:50,463 INFO L225 Difference]: With dead ends: 14 [2021-10-11 02:21:50,464 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:21:50,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:21:50,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:21:50,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:21:50,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:21:50,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:21:50,495 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1 [2021-10-11 02:21:50,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:50,495 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:21:50,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:21:50,496 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:21:50,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:21:50,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:21:50,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:21:50 BasicIcfg [2021-10-11 02:21:50,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:21:50,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:21:50,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:21:50,501 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:21:50,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:43" (3/4) ... [2021-10-11 02:21:50,505 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:21:50,512 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-11 02:21:50,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-11 02:21:50,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:21:50,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:21:50,520 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:21:50,584 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d930cd72-e076-4f77-9b07-e0eec02e5836/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:21:50,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:21:50,590 INFO L168 Benchmark]: Toolchain (without parser) took 10546.35 ms. Allocated memory was 102.8 MB in the beginning and 207.6 MB in the end (delta: 104.9 MB). Free memory was 64.6 MB in the beginning and 65.9 MB in the end (delta: -1.3 MB). Peak memory consumption was 103.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:50,591 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 76.8 MB in the end (delta: 21.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:50,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2040.86 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 64.3 MB in the beginning and 74.1 MB in the end (delta: -9.8 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:50,592 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.23 ms. Allocated memory is still 140.5 MB. Free memory was 74.1 MB in the beginning and 70.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:50,593 INFO L168 Benchmark]: Boogie Preprocessor took 90.41 ms. Allocated memory is still 140.5 MB. Free memory was 70.9 MB in the beginning and 68.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:50,594 INFO L168 Benchmark]: RCFGBuilder took 773.32 ms. Allocated memory is still 140.5 MB. Free memory was 68.8 MB in the beginning and 93.0 MB in the end (delta: -24.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:50,594 INFO L168 Benchmark]: TraceAbstraction took 7404.93 ms. Allocated memory was 140.5 MB in the beginning and 207.6 MB in the end (delta: 67.1 MB). Free memory was 93.0 MB in the beginning and 69.0 MB in the end (delta: 24.0 MB). Peak memory consumption was 92.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:50,595 INFO L168 Benchmark]: Witness Printer took 88.33 ms. Allocated memory is still 207.6 MB. Free memory was 69.0 MB in the beginning and 65.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:50,598 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 76.8 MB in the end (delta: 21.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2040.86 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 64.3 MB in the beginning and 74.1 MB in the end (delta: -9.8 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 130.23 ms. Allocated memory is still 140.5 MB. Free memory was 74.1 MB in the beginning and 70.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.41 ms. Allocated memory is still 140.5 MB. Free memory was 70.9 MB in the beginning and 68.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 773.32 ms. Allocated memory is still 140.5 MB. Free memory was 68.8 MB in the beginning and 93.0 MB in the end (delta: -24.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7404.93 ms. Allocated memory was 140.5 MB in the beginning and 207.6 MB in the end (delta: 67.1 MB). Free memory was 93.0 MB in the beginning and 69.0 MB in the end (delta: 24.0 MB). Peak memory consumption was 92.1 MB. Max. memory is 16.1 GB. * Witness Printer took 88.33 ms. Allocated memory is still 207.6 MB. Free memory was 69.0 MB in the beginning and 65.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 284 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 5 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.8s, 90 PlacesBefore, 16 PlacesAfterwards, 92 TransitionsBefore, 14 TransitionsAfterwards, 420 CoEnabledTransitionPairs, 7 FixpointIterations, 68 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 7 ConcurrentYvCompositions, 4 ChoiceCompositions, 113 TotalNumberOfCompositions, 378 MoverChecksTotal - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 87 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.9s, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...