./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/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_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/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_6a6e36bd-16db-4310-96c3-c80fc7d8365d/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 4f5c1949da3ffd7703b26279578bf3cad55c86e8b0ffaff69f49645cdd541f53 --- 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 11:28:02,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:28:02,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:28:02,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:28:02,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:28:02,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:28:02,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:28:02,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:28:02,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:28:02,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:28:02,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:28:02,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:28:02,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:28:02,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:28:02,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:28:02,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:28:02,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:28:02,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:28:02,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:28:02,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:28:02,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:28:02,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:28:02,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:28:02,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:28:02,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:28:02,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:28:02,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:28:02,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:28:02,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:28:02,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:28:02,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:28:02,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:28:02,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:28:02,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:28:02,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:28:02,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:28:02,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:28:02,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:28:02,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:28:02,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:28:02,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:28:02,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:28:02,369 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:28:02,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:28:02,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:28:02,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:28:02,374 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:28:02,374 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:28:02,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:28:02,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:28:02,375 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:28:02,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:28:02,377 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:28:02,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:28:02,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:28:02,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:28:02,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:28:02,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:28:02,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:28:02,378 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:28:02,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:28:02,379 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:28:02,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:28:02,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:28:02,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:28:02,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:28:02,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:28:02,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:28:02,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:28:02,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:28:02,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:28:02,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:28:02,387 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:28:02,388 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:28:02,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:28:02,388 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_6a6e36bd-16db-4310-96c3-c80fc7d8365d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5c1949da3ffd7703b26279578bf3cad55c86e8b0ffaff69f49645cdd541f53 [2022-11-16 11:28:02,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:28:02,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:28:02,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:28:02,707 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:28:02,708 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:28:02,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2022-11-16 11:28:02,786 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8/data/29b071bb1/6217f8adfbe44327858947ab28ebf2c3/FLAGc6658f8fe [2022-11-16 11:28:03,397 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:28:03,411 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2022-11-16 11:28:03,436 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8/data/29b071bb1/6217f8adfbe44327858947ab28ebf2c3/FLAGc6658f8fe [2022-11-16 11:28:03,685 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8/data/29b071bb1/6217f8adfbe44327858947ab28ebf2c3 [2022-11-16 11:28:03,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:28:03,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:28:03,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:28:03,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:28:03,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:28:03,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:28:03" (1/1) ... [2022-11-16 11:28:03,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36408e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:03, skipping insertion in model container [2022-11-16 11:28:03,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:28:03" (1/1) ... [2022-11-16 11:28:03,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:28:03,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:28:03,999 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_6a6e36bd-16db-4310-96c3-c80fc7d8365d/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2022-11-16 11:28:04,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:28:04,420 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:28:04,434 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_6a6e36bd-16db-4310-96c3-c80fc7d8365d/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2022-11-16 11:28:04,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:28:04,570 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:28:04,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:04 WrapperNode [2022-11-16 11:28:04,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:28:04,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:28:04,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:28:04,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:28:04,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:04" (1/1) ... [2022-11-16 11:28:04,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:04" (1/1) ... [2022-11-16 11:28:04,627 INFO L138 Inliner]: procedures = 354, calls = 47, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2022-11-16 11:28:04,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:28:04,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:28:04,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:28:04,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:28:04,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:04" (1/1) ... [2022-11-16 11:28:04,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:04" (1/1) ... [2022-11-16 11:28:04,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:04" (1/1) ... [2022-11-16 11:28:04,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:04" (1/1) ... [2022-11-16 11:28:04,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:04" (1/1) ... [2022-11-16 11:28:04,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:04" (1/1) ... [2022-11-16 11:28:04,656 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:04" (1/1) ... [2022-11-16 11:28:04,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:04" (1/1) ... [2022-11-16 11:28:04,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:28:04,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:28:04,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:28:04,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:28:04,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:04" (1/1) ... [2022-11-16 11:28:04,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:28:04,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:28:04,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:28:04,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:28:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-16 11:28:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-11-16 11:28:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-11-16 11:28:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-11-16 11:28:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-11-16 11:28:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:28:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:28:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:28:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:28:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:28:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:28:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:28:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:28:04,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:28:04,804 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 11:28:05,227 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:28:05,229 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:28:05,395 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:28:05,403 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:28:05,403 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:28:05,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:28:05 BoogieIcfgContainer [2022-11-16 11:28:05,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:28:05,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:28:05,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:28:05,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:28:05,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:28:03" (1/3) ... [2022-11-16 11:28:05,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c85cc43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:28:05, skipping insertion in model container [2022-11-16 11:28:05,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:28:04" (2/3) ... [2022-11-16 11:28:05,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c85cc43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:28:05, skipping insertion in model container [2022-11-16 11:28:05,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:28:05" (3/3) ... [2022-11-16 11:28:05,415 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_true.i [2022-11-16 11:28:05,426 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:28:05,436 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:28:05,437 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:28:05,437 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:28:05,490 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:28:05,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 103 transitions, 222 flow [2022-11-16 11:28:05,572 INFO L130 PetriNetUnfolder]: 1/101 cut-off events. [2022-11-16 11:28:05,572 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:28:05,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 101 events. 1/101 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-11-16 11:28:05,577 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 103 transitions, 222 flow [2022-11-16 11:28:05,580 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 79 transitions, 164 flow [2022-11-16 11:28:05,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:28:05,597 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;@33948a39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:28:05,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-16 11:28:05,619 INFO L130 PetriNetUnfolder]: 0/75 cut-off events. [2022-11-16 11:28:05,619 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:28:05,619 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:28:05,620 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] [2022-11-16 11:28:05,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:28:05,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:05,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1113420850, now seen corresponding path program 1 times [2022-11-16 11:28:05,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:05,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086099890] [2022-11-16 11:28:05,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:05,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:06,425 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 11:28:06,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:06,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086099890] [2022-11-16 11:28:06,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086099890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:06,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:06,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:28:06,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094853444] [2022-11-16 11:28:06,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:06,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:28:06,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:06,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:28:06,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:28:06,475 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 103 [2022-11-16 11:28:06,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 79 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 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 11:28:06,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:28:06,480 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 103 [2022-11-16 11:28:06,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:28:06,595 INFO L130 PetriNetUnfolder]: 6/120 cut-off events. [2022-11-16 11:28:06,595 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:28:06,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 120 events. 6/120 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 221 event pairs, 0 based on Foata normal form. 4/124 useless extension candidates. Maximal degree in co-relation 110. Up to 10 conditions per place. [2022-11-16 11:28:06,597 INFO L137 encePairwiseOnDemand]: 98/103 looper letters, 8 selfloop transitions, 2 changer transitions 10/90 dead transitions. [2022-11-16 11:28:06,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 90 transitions, 235 flow [2022-11-16 11:28:06,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:28:06,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:28:06,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 638 transitions. [2022-11-16 11:28:06,613 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8848821081830791 [2022-11-16 11:28:06,614 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 638 transitions. [2022-11-16 11:28:06,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 638 transitions. [2022-11-16 11:28:06,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:28:06,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 638 transitions. [2022-11-16 11:28:06,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.14285714285714) internal successors, (638), 7 states have internal predecessors, (638), 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 11:28:06,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 103.0) internal successors, (824), 8 states have internal predecessors, (824), 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 11:28:06,646 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 103.0) internal successors, (824), 8 states have internal predecessors, (824), 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 11:28:06,648 INFO L175 Difference]: Start difference. First operand has 86 places, 79 transitions, 164 flow. Second operand 7 states and 638 transitions. [2022-11-16 11:28:06,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 90 transitions, 235 flow [2022-11-16 11:28:06,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 90 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:28:06,659 INFO L231 Difference]: Finished difference. Result has 95 places, 79 transitions, 178 flow [2022-11-16 11:28:06,661 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=178, PETRI_PLACES=95, PETRI_TRANSITIONS=79} [2022-11-16 11:28:06,666 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 9 predicate places. [2022-11-16 11:28:06,667 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 79 transitions, 178 flow [2022-11-16 11:28:06,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 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 11:28:06,668 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:28:06,668 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] [2022-11-16 11:28:06,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:28:06,669 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:28:06,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:06,673 INFO L85 PathProgramCache]: Analyzing trace with hash 665304972, now seen corresponding path program 1 times [2022-11-16 11:28:06,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:06,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908133857] [2022-11-16 11:28:06,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:06,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:07,164 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 11:28:07,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:07,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908133857] [2022-11-16 11:28:07,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908133857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:07,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:07,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:28:07,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284792365] [2022-11-16 11:28:07,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:07,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:28:07,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:07,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:28:07,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:28:07,177 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 103 [2022-11-16 11:28:07,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 79 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 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 11:28:07,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:28:07,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 103 [2022-11-16 11:28:07,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:28:07,306 INFO L130 PetriNetUnfolder]: 4/102 cut-off events. [2022-11-16 11:28:07,307 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-16 11:28:07,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 102 events. 4/102 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 103 event pairs, 1 based on Foata normal form. 6/107 useless extension candidates. Maximal degree in co-relation 148. Up to 11 conditions per place. [2022-11-16 11:28:07,310 INFO L137 encePairwiseOnDemand]: 96/103 looper letters, 16 selfloop transitions, 7 changer transitions 2/84 dead transitions. [2022-11-16 11:28:07,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 84 transitions, 244 flow [2022-11-16 11:28:07,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:28:07,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:28:07,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 410 transitions. [2022-11-16 11:28:07,314 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7961165048543689 [2022-11-16 11:28:07,314 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 410 transitions. [2022-11-16 11:28:07,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 410 transitions. [2022-11-16 11:28:07,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:28:07,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 410 transitions. [2022-11-16 11:28:07,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 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 11:28:07,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 103.0) internal successors, (618), 6 states have internal predecessors, (618), 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 11:28:07,320 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 103.0) internal successors, (618), 6 states have internal predecessors, (618), 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 11:28:07,320 INFO L175 Difference]: Start difference. First operand has 95 places, 79 transitions, 178 flow. Second operand 5 states and 410 transitions. [2022-11-16 11:28:07,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 84 transitions, 244 flow [2022-11-16 11:28:07,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 84 transitions, 234 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-11-16 11:28:07,324 INFO L231 Difference]: Finished difference. Result has 90 places, 79 transitions, 182 flow [2022-11-16 11:28:07,324 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=90, PETRI_TRANSITIONS=79} [2022-11-16 11:28:07,325 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 4 predicate places. [2022-11-16 11:28:07,325 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 79 transitions, 182 flow [2022-11-16 11:28:07,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 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 11:28:07,326 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:28:07,326 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] [2022-11-16 11:28:07,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:28:07,327 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:28:07,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:07,328 INFO L85 PathProgramCache]: Analyzing trace with hash 106039557, now seen corresponding path program 1 times [2022-11-16 11:28:07,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:07,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880567247] [2022-11-16 11:28:07,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:07,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:28:07,397 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:28:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:28:07,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:28:07,477 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:28:07,478 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-16 11:28:07,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-16 11:28:07,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-16 11:28:07,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-11-16 11:28:07,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:28:07,482 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 11:28:07,500 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:28:07,500 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:28:07,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:28:07 BasicIcfg [2022-11-16 11:28:07,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:28:07,548 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:28:07,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:28:07,548 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:28:07,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:28:05" (3/4) ... [2022-11-16 11:28:07,551 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 11:28:07,631 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:28:07,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:28:07,632 INFO L158 Benchmark]: Toolchain (without parser) took 3938.64ms. Allocated memory was 98.6MB in the beginning and 151.0MB in the end (delta: 52.4MB). Free memory was 76.1MB in the beginning and 106.6MB in the end (delta: -30.5MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2022-11-16 11:28:07,633 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 98.6MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:28:07,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 874.10ms. Allocated memory is still 98.6MB. Free memory was 75.8MB in the beginning and 46.5MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-16 11:28:07,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.31ms. Allocated memory is still 98.6MB. Free memory was 46.5MB in the beginning and 43.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:28:07,639 INFO L158 Benchmark]: Boogie Preprocessor took 45.38ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 43.7MB in the beginning and 95.5MB in the end (delta: -51.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-11-16 11:28:07,640 INFO L158 Benchmark]: RCFGBuilder took 731.20ms. Allocated memory is still 119.5MB. Free memory was 95.4MB in the beginning and 77.4MB in the end (delta: 18.0MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-11-16 11:28:07,640 INFO L158 Benchmark]: TraceAbstraction took 2139.38ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 76.8MB in the beginning and 116.0MB in the end (delta: -39.2MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2022-11-16 11:28:07,642 INFO L158 Benchmark]: Witness Printer took 83.77ms. Allocated memory is still 151.0MB. Free memory was 116.0MB in the beginning and 106.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:28:07,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 98.6MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 874.10ms. Allocated memory is still 98.6MB. Free memory was 75.8MB in the beginning and 46.5MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.31ms. Allocated memory is still 98.6MB. Free memory was 46.5MB in the beginning and 43.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.38ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 43.7MB in the beginning and 95.5MB in the end (delta: -51.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * RCFGBuilder took 731.20ms. Allocated memory is still 119.5MB. Free memory was 95.4MB in the beginning and 77.4MB in the end (delta: 18.0MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2139.38ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 76.8MB in the beginning and 116.0MB in the end (delta: -39.2MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. * Witness Printer took 83.77ms. Allocated memory is still 151.0MB. Free memory was 116.0MB in the beginning and 106.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; VAL [g=0] [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; VAL [cond={4:0}, g=0] [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [cond={4:0}, g=0, mut={5:0}] [L1373] 0 pthread_t t1; VAL [\old(argc)=1151, argc=1151, argv={1152:1150}, argv={1152:1150}, cond={4:0}, g=0, mut={5:0}, t1={10:0}] [L1374] 0 pthread_t t2; VAL [\old(argc)=1151, argc=1151, argv={1152:1150}, argv={1152:1150}, cond={4:0}, g=0, mut={5:0}, t1={10:0}, t2={9:0}] [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1151, argc=1151, argv={1152:1150}, argv={1152:1150}, cond={4:0}, g=0, mut={5:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, t1={10:0}, t2={9:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={5:0}, ptr={0:0}, ptr={0:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1151, argc=1151, argv={1152:1150}, argv={1152:1150}, cond={4:0}, g=1, mut={5:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, t1={10:0}, t2={9:0}] [L1366] 2 g = 0 VAL [cond={4:0}, g=0, mut={5:0}, ptr={0:0}, ptr={0:0}] [L1358] CALL 1 __VERIFIER_assert(g == 1) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond={4:0}, cond=0, g=0, mut={5:0}, ptr={0:0}, ptr={0:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=0, mut={5:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1377]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 135 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 25 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 incorrect! [2022-11-16 11:28:07,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a6e36bd-16db-4310-96c3-c80fc7d8365d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE