./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 11:08:53,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:08:53,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:08:53,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:08:53,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:08:53,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:08:53,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:08:53,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:08:53,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:08:53,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:08:53,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:08:53,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:08:53,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:08:53,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:08:53,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:08:53,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:08:53,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:08:53,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:08:53,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:08:53,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:08:53,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:08:53,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:08:53,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:08:53,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:08:53,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:08:53,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:08:53,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:08:53,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:08:53,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:08:53,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:08:53,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:08:53,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:08:53,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:08:53,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:08:53,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:08:53,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:08:53,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:08:53,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:08:53,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:08:53,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:08:53,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:08:53,112 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:08:53,171 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:08:53,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:08:53,172 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:08:53,172 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:08:53,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:08:53,173 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:08:53,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:08:53,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:08:53,174 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:08:53,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:08:53,175 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:08:53,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:08:53,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:08:53,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:08:53,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:08:53,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:08:53,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:08:53,176 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:08:53,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:08:53,177 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:08:53,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:08:53,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:08:53,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:08:53,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:08:53,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:08:53,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:08:53,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:08:53,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:08:53,181 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:08:53,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:08:53,181 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:08:53,181 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:08:53,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:08:53,182 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_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f02fd31f03f03300713de36d3982e392122375115e7a5509580eaaa38dd9026f [2022-11-16 11:08:53,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:08:53,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:08:53,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:08:53,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:08:53,612 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:08:53,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2022-11-16 11:08:53,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/data/d4ab470e6/cdd6859132354e0e8e48bc22de4c54c4/FLAGa29707192 [2022-11-16 11:08:54,414 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:08:54,415 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2022-11-16 11:08:54,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/data/d4ab470e6/cdd6859132354e0e8e48bc22de4c54c4/FLAGa29707192 [2022-11-16 11:08:54,750 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/data/d4ab470e6/cdd6859132354e0e8e48bc22de4c54c4 [2022-11-16 11:08:54,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:08:54,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:08:54,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:08:54,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:08:54,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:08:54,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:08:54" (1/1) ... [2022-11-16 11:08:54,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec594f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:54, skipping insertion in model container [2022-11-16 11:08:54,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:08:54" (1/1) ... [2022-11-16 11:08:54,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:08:54,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:08:55,086 WARN L229 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_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-11-16 11:08:55,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:08:55,102 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:08:55,151 WARN L229 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_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5274,5287] [2022-11-16 11:08:55,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:08:55,172 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:08:55,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:55 WrapperNode [2022-11-16 11:08:55,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:08:55,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:08:55,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:08:55,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:08:55,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:55" (1/1) ... [2022-11-16 11:08:55,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:55" (1/1) ... [2022-11-16 11:08:55,261 INFO L138 Inliner]: procedures = 27, calls = 130, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 358 [2022-11-16 11:08:55,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:08:55,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:08:55,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:08:55,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:08:55,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:55" (1/1) ... [2022-11-16 11:08:55,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:55" (1/1) ... [2022-11-16 11:08:55,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:55" (1/1) ... [2022-11-16 11:08:55,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:55" (1/1) ... [2022-11-16 11:08:55,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:55" (1/1) ... [2022-11-16 11:08:55,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:55" (1/1) ... [2022-11-16 11:08:55,305 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:55" (1/1) ... [2022-11-16 11:08:55,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:55" (1/1) ... [2022-11-16 11:08:55,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:08:55,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:08:55,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:08:55,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:08:55,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:55" (1/1) ... [2022-11-16 11:08:55,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:08:55,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:55,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:55,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97439fb4-9af3-4ca0-bcf3-37fe1b16de24/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:08:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:08:55,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:08:55,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:08:55,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:08:55,438 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:08:55,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:08:55,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:08:55,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:08:55,439 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:08:55,440 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:08:55,440 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 11:08:55,440 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 11:08:55,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:08:55,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-16 11:08:55,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-16 11:08:55,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-16 11:08:55,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-16 11:08:55,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-11-16 11:08:55,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-11-16 11:08:55,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2022-11-16 11:08:55,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2022-11-16 11:08:55,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:08:55,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:08:55,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:08:55,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:08:55,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:08:55,446 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:08:55,595 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:08:55,598 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:08:56,231 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:08:56,538 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:08:56,539 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:08:56,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:56 BoogieIcfgContainer [2022-11-16 11:08:56,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:08:56,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:08:56,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:08:56,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:08:56,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:08:54" (1/3) ... [2022-11-16 11:08:56,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453dc5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:08:56, skipping insertion in model container [2022-11-16 11:08:56,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:55" (2/3) ... [2022-11-16 11:08:56,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453dc5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:08:56, skipping insertion in model container [2022-11-16 11:08:56,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:56" (3/3) ... [2022-11-16 11:08:56,575 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2022-11-16 11:08:56,586 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:08:56,600 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:08:56,600 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:08:56,601 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:08:56,746 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-16 11:08:56,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 234 transitions, 532 flow [2022-11-16 11:08:57,047 INFO L130 PetriNetUnfolder]: 2/226 cut-off events. [2022-11-16 11:08:57,048 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-16 11:08:57,056 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. [2022-11-16 11:08:57,057 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 234 transitions, 532 flow [2022-11-16 11:08:57,070 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 205 transitions, 458 flow [2022-11-16 11:08:57,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:08:57,107 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;@6882770f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:08:57,107 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-16 11:08:57,229 INFO L130 PetriNetUnfolder]: 2/204 cut-off events. [2022-11-16 11:08:57,229 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-16 11:08:57,230 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:57,232 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] [2022-11-16 11:08:57,233 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)] === [2022-11-16 11:08:57,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:57,242 INFO L85 PathProgramCache]: Analyzing trace with hash -472035474, now seen corresponding path program 1 times [2022-11-16 11:08:57,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:57,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755362730] [2022-11-16 11:08:57,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:57,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:02,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:02,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:02,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755362730] [2022-11-16 11:09:02,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755362730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:02,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:02,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:09:02,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65505196] [2022-11-16 11:09:02,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:02,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:09:02,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:02,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:09:02,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:09:02,267 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 234 [2022-11-16 11:09:02,275 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) [2022-11-16 11:09:02,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:09:02,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 234 [2022-11-16 11:09:02,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand