./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f02fd31f03f03300713de36d3982e392122375115e7a5509580eaaa38dd9026f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:00:14,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:00:14,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:00:14,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:00:14,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:00:14,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:00:14,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:00:14,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:00:14,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:00:14,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:00:14,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:00:14,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:00:14,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:00:14,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:00:14,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:00:14,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:00:14,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:00:14,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:00:14,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:00:14,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:00:14,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:00:14,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:00:14,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:00:14,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:00:14,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:00:14,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:00:14,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:00:14,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:00:14,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:00:14,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:00:14,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:00:14,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:00:14,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:00:14,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:00:14,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:00:14,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:00:14,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:00:14,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:00:14,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:00:14,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:00:14,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:00:14,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:00:14,584 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:00:14,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:00:14,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:00:14,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:00:14,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:00:14,590 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:00:14,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:00:14,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:00:14,592 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:00:14,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:00:14,593 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:00:14,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:00:14,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:00:14,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:00:14,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:00:14,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:00:14,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:00:14,595 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:00:14,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:00:14,596 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:00:14,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:00:14,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:00:14,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:00:14,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:00:14,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:00:14,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:00:14,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:00:14,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:00:14,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:00:14,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:00:14,599 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:00:14,599 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:00:14,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:00:14,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f02fd31f03f03300713de36d3982e392122375115e7a5509580eaaa38dd9026f [2022-11-18 20:00:14,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:00:15,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:00:15,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:00:15,023 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:00:15,024 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:00:15,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2022-11-18 20:00:15,105 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/data/d0558b224/a977ec11fa93427d9116c49f8df07651/FLAG14bdb435c [2022-11-18 20:00:15,668 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:00:15,669 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2022-11-18 20:00:15,679 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/data/d0558b224/a977ec11fa93427d9116c49f8df07651/FLAG14bdb435c [2022-11-18 20:00:16,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/data/d0558b224/a977ec11fa93427d9116c49f8df07651 [2022-11-18 20:00:16,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:00:16,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:00:16,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:00:16,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:00:16,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:00:16,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:00:16" (1/1) ... [2022-11-18 20:00:16,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d1c8013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16, skipping insertion in model container [2022-11-18 20:00:16,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:00:16" (1/1) ... [2022-11-18 20:00:16,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:00:16,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:00:16,350 WARN L234 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_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-11-18 20:00:16,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:00:16,367 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:00:16,409 WARN L234 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_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-11-18 20:00:16,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:00:16,428 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:00:16,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16 WrapperNode [2022-11-18 20:00:16,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:00:16,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:00:16,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:00:16,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:00:16,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16" (1/1) ... [2022-11-18 20:00:16,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16" (1/1) ... [2022-11-18 20:00:16,495 INFO L138 Inliner]: procedures = 27, calls = 130, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 358 [2022-11-18 20:00:16,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:00:16,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:00:16,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:00:16,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:00:16,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16" (1/1) ... [2022-11-18 20:00:16,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16" (1/1) ... [2022-11-18 20:00:16,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16" (1/1) ... [2022-11-18 20:00:16,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16" (1/1) ... [2022-11-18 20:00:16,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16" (1/1) ... [2022-11-18 20:00:16,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16" (1/1) ... [2022-11-18 20:00:16,558 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16" (1/1) ... [2022-11-18 20:00:16,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16" (1/1) ... [2022-11-18 20:00:16,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:00:16,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:00:16,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:00:16,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:00:16,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16" (1/1) ... [2022-11-18 20:00:16,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:00:16,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:00:16,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:00:16,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb6eea5-2c3b-4130-ba06-3edbd3316bb8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:00:16,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:00:16,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:00:16,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:00:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:00:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:00:16,676 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:00:16,676 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:00:16,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:00:16,678 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:00:16,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:00:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 20:00:16,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 20:00:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:00:16,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-18 20:00:16,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-18 20:00:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-18 20:00:16,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-18 20:00:16,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-11-18 20:00:16,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-11-18 20:00:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2022-11-18 20:00:16,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2022-11-18 20:00:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:00:16,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:00:16,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:00:16,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:00:16,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:00:16,684 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:00:16,866 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:00:16,869 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:00:17,565 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:00:17,777 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:00:17,777 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:00:17,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:00:17 BoogieIcfgContainer [2022-11-18 20:00:17,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:00:17,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:00:17,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:00:17,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:00:17,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:00:16" (1/3) ... [2022-11-18 20:00:17,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad512f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:00:17, skipping insertion in model container [2022-11-18 20:00:17,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:00:16" (2/3) ... [2022-11-18 20:00:17,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad512f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:00:17, skipping insertion in model container [2022-11-18 20:00:17,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:00:17" (3/3) ... [2022-11-18 20:00:17,807 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2022-11-18 20:00:17,818 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:00:17,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:00:17,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:00:17,833 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:00:18,083 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-18 20:00:18,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 234 transitions, 532 flow [2022-11-18 20:00:18,424 INFO L130 PetriNetUnfolder]: 2/226 cut-off events. [2022-11-18 20:00:18,424 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-18 20:00:18,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 226 events. 2/226 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 105 event pairs, 0 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 177. Up to 2 conditions per place. [2022-11-18 20:00:18,434 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 234 transitions, 532 flow [2022-11-18 20:00:18,446 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 205 transitions, 458 flow [2022-11-18 20:00:18,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:00:18,486 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6dd13848, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:00:18,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-18 20:00:18,596 INFO L130 PetriNetUnfolder]: 2/204 cut-off events. [2022-11-18 20:00:18,596 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-18 20:00:18,596 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:00:18,598 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:00:18,599 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:00:18,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:00:18,608 INFO L85 PathProgramCache]: Analyzing trace with hash -472035474, now seen corresponding path program 1 times [2022-11-18 20:00:18,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:00:18,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469530394] [2022-11-18 20:00:18,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:00:18,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:00:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:00:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:00:23,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:00:23,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469530394] [2022-11-18 20:00:23,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469530394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:00:23,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:00:23,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 20:00:23,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970498907] [2022-11-18 20:00:23,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:00:23,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:00:23,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:00:23,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:00:23,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:00:23,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 234 [2022-11-18 20:00:23,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 205 transitions, 458 flow. Second operand has 11 states, 11 states have (on average 173.54545454545453) internal successors, (1909), 11 states have internal predecessors, (1909), 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) [2022-11-18 20:00:23,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:00:23,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 234 [2022-11-18 20:00:23,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand