./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:52,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:52,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:46:52,512 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:52,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:52,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:52,558 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:52,559 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:52,561 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:52,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:52,565 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:52,566 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:52,567 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:52,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:52,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:52,573 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:52,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:52,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:52,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:52,575 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:52,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:52,576 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:52,576 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:52,577 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:52,577 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:52,578 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:52,578 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:52,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:52,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:52,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:52,581 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:52,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:46:52,582 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:52,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:46:52,583 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:52,583 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:46:52,583 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:52,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:52,584 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:52,584 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 [2023-11-19 07:46:52,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:52,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:52,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:52,967 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:52,968 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:52,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i [2023-11-19 07:46:56,136 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:56,413 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:56,414 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i [2023-11-19 07:46:56,436 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu/data/0ba5da20b/85aab6399bdc4d6c8f70ee209ed2e315/FLAG71b50028c [2023-11-19 07:46:56,453 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu/data/0ba5da20b/85aab6399bdc4d6c8f70ee209ed2e315 [2023-11-19 07:46:56,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:56,458 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:56,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:56,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:56,466 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:56,467 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:56" (1/1) ... [2023-11-19 07:46:56,468 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de668c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:56, skipping insertion in model container [2023-11-19 07:46:56,469 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:56" (1/1) ... [2023-11-19 07:46:56,531 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:56,893 WARN L240 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_e2931a73-ff0e-4a6f-8528-80841d202697/sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i[30176,30189] [2023-11-19 07:46:56,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:56,946 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:57,010 WARN L240 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_e2931a73-ff0e-4a6f-8528-80841d202697/sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i[30176,30189] [2023-11-19 07:46:57,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:57,082 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:57,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57 WrapperNode [2023-11-19 07:46:57,083 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:57,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:57,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:57,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:57,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57" (1/1) ... [2023-11-19 07:46:57,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57" (1/1) ... [2023-11-19 07:46:57,153 INFO L138 Inliner]: procedures = 172, calls = 43, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 204 [2023-11-19 07:46:57,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:57,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:57,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:57,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:57,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57" (1/1) ... [2023-11-19 07:46:57,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57" (1/1) ... [2023-11-19 07:46:57,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57" (1/1) ... [2023-11-19 07:46:57,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57" (1/1) ... [2023-11-19 07:46:57,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57" (1/1) ... [2023-11-19 07:46:57,185 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57" (1/1) ... [2023-11-19 07:46:57,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57" (1/1) ... [2023-11-19 07:46:57,190 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57" (1/1) ... [2023-11-19 07:46:57,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:57,196 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:57,196 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:57,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:57,197 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57" (1/1) ... [2023-11-19 07:46:57,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:57,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:57,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:57,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2931a73-ff0e-4a6f-8528-80841d202697/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:46:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-19 07:46:57,279 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-19 07:46:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:46:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:46:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-19 07:46:57,280 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-19 07:46:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:46:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:57,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:57,282 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:46:57,448 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:57,451 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:57,776 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:57,789 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:57,789 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-11-19 07:46:57,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:57 BoogieIcfgContainer [2023-11-19 07:46:57,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:57,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:57,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:57,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:57,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:56" (1/3) ... [2023-11-19 07:46:57,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fbb4be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:57, skipping insertion in model container [2023-11-19 07:46:57,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:57" (2/3) ... [2023-11-19 07:46:57,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fbb4be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:57, skipping insertion in model container [2023-11-19 07:46:57,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:57" (3/3) ... [2023-11-19 07:46:57,805 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_03-munge_racing.i [2023-11-19 07:46:57,815 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:46:57,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:57,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:46:57,828 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:46:57,952 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 07:46:58,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 210 transitions, 440 flow [2023-11-19 07:46:58,281 INFO L124 PetriNetUnfolderBase]: 58/385 cut-off events. [2023-11-19 07:46:58,282 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 07:46:58,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 385 events. 58/385 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1674 event pairs, 0 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 205. Up to 8 conditions per place. [2023-11-19 07:46:58,305 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 210 transitions, 440 flow [2023-11-19 07:46:58,320 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 210 transitions, 440 flow [2023-11-19 07:46:58,324 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:46:58,345 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 183 places, 210 transitions, 440 flow [2023-11-19 07:46:58,350 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 183 places, 210 transitions, 440 flow [2023-11-19 07:46:58,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 210 transitions, 440 flow [2023-11-19 07:46:58,438 INFO L124 PetriNetUnfolderBase]: 58/385 cut-off events. [2023-11-19 07:46:58,438 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 07:46:58,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 385 events. 58/385 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1674 event pairs, 0 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 205. Up to 8 conditions per place. [2023-11-19 07:46:58,462 INFO L119 LiptonReduction]: Number of co-enabled transitions 18560 [2023-11-19 07:47:03,410 INFO L134 LiptonReduction]: Checked pairs total: 31542 [2023-11-19 07:47:03,410 INFO L136 LiptonReduction]: Total number of compositions: 154 [2023-11-19 07:47:03,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:47:03,439 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=LoopHeads, 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;@23bdf5ff, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:47:03,439 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-19 07:47:03,443 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:47:03,445 INFO L124 PetriNetUnfolderBase]: 1/21 cut-off events. [2023-11-19 07:47:03,445 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:03,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:03,447 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:47:03,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-19 07:47:03,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:03,454 INFO L85 PathProgramCache]: Analyzing trace with hash -766346896, now seen corresponding path program 1 times [2023-11-19 07:47:03,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:03,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804455552] [2023-11-19 07:47:03,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:03,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:03,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:03,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:03,666 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:47:03,667 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-11-19 07:47:03,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-11-19 07:47:03,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-11-19 07:47:03,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2023-11-19 07:47:03,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-11-19 07:47:03,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-11-19 07:47:03,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:47:03,674 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 07:47:03,678 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:47:03,678 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:47:03,760 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-19 07:47:03,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 281 places, 332 transitions, 708 flow [2023-11-19 07:47:04,086 INFO L124 PetriNetUnfolderBase]: 197/1135 cut-off events. [2023-11-19 07:47:04,086 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2023-11-19 07:47:04,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 1135 events. 197/1135 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6808 event pairs, 1 based on Foata normal form. 0/943 useless extension candidates. Maximal degree in co-relation 688. Up to 32 conditions per place. [2023-11-19 07:47:04,112 INFO L82 GeneralOperation]: Start removeDead. Operand has 281 places, 332 transitions, 708 flow [2023-11-19 07:47:04,132 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 281 places, 332 transitions, 708 flow [2023-11-19 07:47:04,132 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:47:04,132 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 281 places, 332 transitions, 708 flow [2023-11-19 07:47:04,133 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 281 places, 332 transitions, 708 flow [2023-11-19 07:47:04,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 281 places, 332 transitions, 708 flow [2023-11-19 07:47:04,420 INFO L124 PetriNetUnfolderBase]: 197/1135 cut-off events. [2023-11-19 07:47:04,420 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2023-11-19 07:47:04,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 1135 events. 197/1135 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6808 event pairs, 1 based on Foata normal form. 0/943 useless extension candidates. Maximal degree in co-relation 688. Up to 32 conditions per place. [2023-11-19 07:47:04,511 INFO L119 LiptonReduction]: Number of co-enabled transitions 66352 [2023-11-19 07:47:09,769 INFO L134 LiptonReduction]: Checked pairs total: 145978 [2023-11-19 07:47:09,769 INFO L136 LiptonReduction]: Total number of compositions: 244 [2023-11-19 07:47:09,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:47:09,774 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=LoopHeads, 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;@23bdf5ff, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:47:09,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 07:47:09,779 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:47:09,779 INFO L124 PetriNetUnfolderBase]: 4/35 cut-off events. [2023-11-19 07:47:09,780 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:47:09,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:09,780 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:09,781 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-19 07:47:09,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:09,781 INFO L85 PathProgramCache]: Analyzing trace with hash -477956450, now seen corresponding path program 1 times [2023-11-19 07:47:09,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:09,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356286142] [2023-11-19 07:47:09,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:09,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:10,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:10,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:10,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356286142] [2023-11-19 07:47:10,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356286142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:10,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:10,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:47:10,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621211583] [2023-11-19 07:47:10,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:10,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:10,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:10,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:10,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:10,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 576 [2023-11-19 07:47:10,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 143 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 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) [2023-11-19 07:47:10,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:10,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 576 [2023-11-19 07:47:10,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand