./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/17_szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/17_szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9d000bd3a81a7401f4ccb21c2696e2644e9236d2ccbd2094291c987ec91aaa92 --- 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-b5237d8 [2022-11-21 16:40:28,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:40:28,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:40:28,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:40:28,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:40:28,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:40:28,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:40:28,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:40:28,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:40:28,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:40:28,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:40:28,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:40:28,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:40:28,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:40:28,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:40:28,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:40:28,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:40:28,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:40:28,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:40:28,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:40:28,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:40:28,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:40:28,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:40:28,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:40:28,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:40:28,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:40:28,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:40:28,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:40:28,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:40:28,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:40:28,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:40:28,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:40:28,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:40:28,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:40:28,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:40:28,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:40:28,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:40:28,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:40:28,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:40:28,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:40:28,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:40:28,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:40:28,518 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:40:28,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:40:28,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:40:28,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:40:28,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:40:28,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:40:28,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:40:28,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:40:28,523 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:40:28,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:40:28,525 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:40:28,525 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:40:28,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:40:28,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:40:28,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:40:28,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:40:28,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:40:28,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:40:28,526 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:40:28,527 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:40:28,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:40:28,527 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:40:28,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:40:28,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:40:28,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:40:28,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:40:28,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:40:28,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:40:28,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:40:28,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:40:28,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:40:28,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:40:28,530 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:40:28,530 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:40:28,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:40:28,530 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_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d000bd3a81a7401f4ccb21c2696e2644e9236d2ccbd2094291c987ec91aaa92 [2022-11-21 16:40:28,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:40:28,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:40:28,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:40:28,865 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:40:28,866 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:40:28,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-ext/17_szymanski.i [2022-11-21 16:40:31,835 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:40:32,088 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:40:32,088 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/sv-benchmarks/c/pthread-ext/17_szymanski.i [2022-11-21 16:40:32,101 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/data/5f40d7f22/7f99832f9f5942e49af51e9a70b38a3d/FLAG2b89d913d [2022-11-21 16:40:32,115 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/data/5f40d7f22/7f99832f9f5942e49af51e9a70b38a3d [2022-11-21 16:40:32,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:40:32,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:40:32,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:40:32,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:40:32,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:40:32,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:40:32" (1/1) ... [2022-11-21 16:40:32,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d41c765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32, skipping insertion in model container [2022-11-21 16:40:32,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:40:32" (1/1) ... [2022-11-21 16:40:32,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:40:32,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:40:32,583 WARN L237 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_13f7b91b-0940-43bf-a88b-c31dba3ca608/sv-benchmarks/c/pthread-ext/17_szymanski.i[30132,30145] [2022-11-21 16:40:32,588 WARN L237 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_13f7b91b-0940-43bf-a88b-c31dba3ca608/sv-benchmarks/c/pthread-ext/17_szymanski.i[30481,30494] [2022-11-21 16:40:32,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:40:32,611 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:40:32,672 WARN L237 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_13f7b91b-0940-43bf-a88b-c31dba3ca608/sv-benchmarks/c/pthread-ext/17_szymanski.i[30132,30145] [2022-11-21 16:40:32,683 WARN L237 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_13f7b91b-0940-43bf-a88b-c31dba3ca608/sv-benchmarks/c/pthread-ext/17_szymanski.i[30481,30494] [2022-11-21 16:40:32,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:40:32,724 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:40:32,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32 WrapperNode [2022-11-21 16:40:32,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:40:32,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:40:32,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:40:32,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:40:32,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32" (1/1) ... [2022-11-21 16:40:32,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32" (1/1) ... [2022-11-21 16:40:32,769 INFO L138 Inliner]: procedures = 167, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 104 [2022-11-21 16:40:32,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:40:32,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:40:32,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:40:32,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:40:32,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32" (1/1) ... [2022-11-21 16:40:32,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32" (1/1) ... [2022-11-21 16:40:32,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32" (1/1) ... [2022-11-21 16:40:32,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32" (1/1) ... [2022-11-21 16:40:32,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32" (1/1) ... [2022-11-21 16:40:32,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32" (1/1) ... [2022-11-21 16:40:32,796 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32" (1/1) ... [2022-11-21 16:40:32,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32" (1/1) ... [2022-11-21 16:40:32,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:40:32,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:40:32,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:40:32,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:40:32,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32" (1/1) ... [2022-11-21 16:40:32,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:40:32,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:40:32,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:40:32,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:40:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-21 16:40:32,892 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-21 16:40:32,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:40:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:40:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:40:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:40:32,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:40:32,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:40:32,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:40:32,895 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:40:33,020 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:40:33,022 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:40:33,394 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:40:33,404 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:40:33,404 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-21 16:40:33,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:40:33 BoogieIcfgContainer [2022-11-21 16:40:33,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:40:33,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:40:33,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:40:33,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:40:33,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:40:32" (1/3) ... [2022-11-21 16:40:33,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2d1b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:40:33, skipping insertion in model container [2022-11-21 16:40:33,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:40:32" (2/3) ... [2022-11-21 16:40:33,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2d1b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:40:33, skipping insertion in model container [2022-11-21 16:40:33,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:40:33" (3/3) ... [2022-11-21 16:40:33,417 INFO L112 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2022-11-21 16:40:33,426 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:40:33,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:40:33,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-21 16:40:33,438 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:40:33,540 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:40:33,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 187 places, 209 transitions, 423 flow [2022-11-21 16:40:33,692 INFO L130 PetriNetUnfolder]: 26/208 cut-off events. [2022-11-21 16:40:33,692 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:40:33,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 208 events. 26/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 494 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 188. Up to 3 conditions per place. [2022-11-21 16:40:33,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 187 places, 209 transitions, 423 flow [2022-11-21 16:40:33,710 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 208 transitions, 419 flow [2022-11-21 16:40:33,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:40:33,728 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;@199d0a75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:40:33,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-11-21 16:40:33,738 INFO L130 PetriNetUnfolder]: 1/35 cut-off events. [2022-11-21 16:40:33,738 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:40:33,738 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:40:33,739 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] [2022-11-21 16:40:33,740 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-21 16:40:33,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:40:33,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1829552224, now seen corresponding path program 1 times [2022-11-21 16:40:33,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:40:33,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731387114] [2022-11-21 16:40:33,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:40:33,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:40:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:40:34,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:40:34,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:40:34,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731387114] [2022-11-21 16:40:34,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731387114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:40:34,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:40:34,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:40:34,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630437353] [2022-11-21 16:40:34,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:40:34,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:40:34,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:40:34,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:40:34,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:40:34,141 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 209 [2022-11-21 16:40:34,144 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 208 transitions, 419 flow. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 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) [2022-11-21 16:40:34,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:40:34,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 209 [2022-11-21 16:40:34,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:40:34,584 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([484] L707-4-->L707-1: Formula: (= |v_#race~flag1~0_22| 0) InVars {} OutVars{#race~flag1~0=|v_#race~flag1~0_22|} AuxVars[] AssignedVars[#race~flag1~0][51], [161#thr1Err12ASSERT_VIOLATIONDATA_RACEtrue, 190#true, 86#L707-1true, thr1Thread1of1ForFork0InUse]) [2022-11-21 16:40:34,584 INFO L383 tUnfolder$Statistics]: this new event has 125 ancestors and is cut-off event [2022-11-21 16:40:34,585 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-21 16:40:34,585 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-21 16:40:34,585 INFO L386 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-11-21 16:40:34,585 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([484] L707-4-->L707-1: Formula: (= |v_#race~flag1~0_22| 0) InVars {} OutVars{#race~flag1~0=|v_#race~flag1~0_22|} AuxVars[] AssignedVars[#race~flag1~0][51], [185#L700-3true, 190#true, 86#L707-1true, thr1Thread1of1ForFork0InUse]) [2022-11-21 16:40:34,585 INFO L383 tUnfolder$Statistics]: this new event has 125 ancestors and is cut-off event [2022-11-21 16:40:34,586 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-21 16:40:34,586 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-21 16:40:34,586 INFO L386 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-11-21 16:40:34,586 INFO L130 PetriNetUnfolder]: 521/2011 cut-off events. [2022-11-21 16:40:34,586 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:40:34,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2798 conditions, 2011 events. 521/2011 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 13873 event pairs, 264 based on Foata normal form. 165/1638 useless extension candidates. Maximal degree in co-relation 2772. Up to 703 conditions per place. [2022-11-21 16:40:34,672 INFO L137 encePairwiseOnDemand]: 185/209 looper letters, 47 selfloop transitions, 9 changer transitions 0/200 dead transitions. [2022-11-21 16:40:34,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 200 transitions, 515 flow [2022-11-21 16:40:34,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:40:34,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:40:34,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 549 transitions. [2022-11-21 16:40:34,697 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8755980861244019 [2022-11-21 16:40:34,698 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 549 transitions. [2022-11-21 16:40:34,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 549 transitions. [2022-11-21 16:40:34,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:40:34,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 549 transitions. [2022-11-21 16:40:34,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 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) [2022-11-21 16:40:34,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2022-11-21 16:40:34,720 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2022-11-21 16:40:34,722 INFO L175 Difference]: Start difference. First operand has 186 places, 208 transitions, 419 flow. Second operand 3 states and 549 transitions. [2022-11-21 16:40:34,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 200 transitions, 515 flow [2022-11-21 16:40:34,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 200 transitions, 514 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:40:34,737 INFO L231 Difference]: Finished difference. Result has 173 places, 188 transitions, 432 flow [2022-11-21 16:40:34,739 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=432, PETRI_PLACES=173, PETRI_TRANSITIONS=188} [2022-11-21 16:40:34,745 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -13 predicate places. [2022-11-21 16:40:34,746 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 188 transitions, 432 flow [2022-11-21 16:40:34,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 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) [2022-11-21 16:40:34,746 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:40:34,747 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] [2022-11-21 16:40:34,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:40:34,749 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-21 16:40:34,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:40:34,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1054748895, now seen corresponding path program 1 times [2022-11-21 16:40:34,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:40:34,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041381802] [2022-11-21 16:40:34,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:40:34,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:40:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:40:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:40:34,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:40:34,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041381802] [2022-11-21 16:40:34,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041381802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:40:34,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:40:34,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:40:34,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142886442] [2022-11-21 16:40:34,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:40:34,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:40:34,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:40:34,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:40:34,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:40:34,889 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 209 [2022-11-21 16:40:34,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 188 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2022-11-21 16:40:34,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:40:34,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 209 [2022-11-21 16:40:34,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:40:35,531 INFO L130 PetriNetUnfolder]: 846/3636 cut-off events. [2022-11-21 16:40:35,532 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-21 16:40:35,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5148 conditions, 3636 events. 846/3636 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 30158 event pairs, 94 based on Foata normal form. 0/2759 useless extension candidates. Maximal degree in co-relation 5121. Up to 586 conditions per place. [2022-11-21 16:40:35,562 INFO L137 encePairwiseOnDemand]: 186/209 looper letters, 44 selfloop transitions, 17 changer transitions 0/215 dead transitions. [2022-11-21 16:40:35,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 215 transitions, 608 flow [2022-11-21 16:40:35,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:40:35,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:40:35,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 544 transitions. [2022-11-21 16:40:35,566 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8676236044657097 [2022-11-21 16:40:35,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 544 transitions. [2022-11-21 16:40:35,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 544 transitions. [2022-11-21 16:40:35,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:40:35,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 544 transitions. [2022-11-21 16:40:35,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 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) [2022-11-21 16:40:35,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2022-11-21 16:40:35,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2022-11-21 16:40:35,572 INFO L175 Difference]: Start difference. First operand has 173 places, 188 transitions, 432 flow. Second operand 3 states and 544 transitions. [2022-11-21 16:40:35,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 215 transitions, 608 flow [2022-11-21 16:40:35,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 215 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:40:35,586 INFO L231 Difference]: Finished difference. Result has 175 places, 205 transitions, 562 flow [2022-11-21 16:40:35,587 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=562, PETRI_PLACES=175, PETRI_TRANSITIONS=205} [2022-11-21 16:40:35,588 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -11 predicate places. [2022-11-21 16:40:35,589 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 205 transitions, 562 flow [2022-11-21 16:40:35,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2022-11-21 16:40:35,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:40:35,590 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] [2022-11-21 16:40:35,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:40:35,590 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-21 16:40:35,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:40:35,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1107204219, now seen corresponding path program 1 times [2022-11-21 16:40:35,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:40:35,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039393786] [2022-11-21 16:40:35,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:40:35,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:40:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:40:35,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:40:35,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:40:35,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039393786] [2022-11-21 16:40:35,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039393786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:40:35,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:40:35,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:40:35,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20988243] [2022-11-21 16:40:35,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:40:35,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:40:35,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:40:35,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:40:35,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:40:35,683 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 209 [2022-11-21 16:40:35,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 205 transitions, 562 flow. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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) [2022-11-21 16:40:35,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:40:35,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 209 [2022-11-21 16:40:35,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:40:36,176 INFO L130 PetriNetUnfolder]: 916/3784 cut-off events. [2022-11-21 16:40:36,177 INFO L131 PetriNetUnfolder]: For 982/1113 co-relation queries the response was YES. [2022-11-21 16:40:36,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6459 conditions, 3784 events. 916/3784 cut-off events. For 982/1113 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 31057 event pairs, 227 based on Foata normal form. 6/2975 useless extension candidates. Maximal degree in co-relation 6431. Up to 1138 conditions per place. [2022-11-21 16:40:36,205 INFO L137 encePairwiseOnDemand]: 199/209 looper letters, 70 selfloop transitions, 16 changer transitions 0/237 dead transitions. [2022-11-21 16:40:36,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 237 transitions, 882 flow [2022-11-21 16:40:36,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:40:36,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:40:36,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2022-11-21 16:40:36,208 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8389154704944178 [2022-11-21 16:40:36,208 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2022-11-21 16:40:36,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2022-11-21 16:40:36,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:40:36,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2022-11-21 16:40:36,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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) [2022-11-21 16:40:36,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2022-11-21 16:40:36,213 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2022-11-21 16:40:36,213 INFO L175 Difference]: Start difference. First operand has 175 places, 205 transitions, 562 flow. Second operand 3 states and 526 transitions. [2022-11-21 16:40:36,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 237 transitions, 882 flow [2022-11-21 16:40:36,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 237 transitions, 824 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:40:36,226 INFO L231 Difference]: Finished difference. Result has 177 places, 219 transitions, 674 flow [2022-11-21 16:40:36,227 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=674, PETRI_PLACES=177, PETRI_TRANSITIONS=219} [2022-11-21 16:40:36,228 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -9 predicate places. [2022-11-21 16:40:36,228 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 219 transitions, 674 flow [2022-11-21 16:40:36,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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) [2022-11-21 16:40:36,229 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:40:36,229 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] [2022-11-21 16:40:36,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:40:36,230 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-21 16:40:36,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:40:36,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1610738057, now seen corresponding path program 1 times [2022-11-21 16:40:36,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:40:36,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363147515] [2022-11-21 16:40:36,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:40:36,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:40:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:40:36,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:40:36,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:40:36,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363147515] [2022-11-21 16:40:36,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363147515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:40:36,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:40:36,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:40:36,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465544427] [2022-11-21 16:40:36,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:40:36,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:40:36,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:40:36,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:40:36,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:40:36,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 209 [2022-11-21 16:40:36,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 219 transitions, 674 flow. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2022-11-21 16:40:36,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:40:36,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 209 [2022-11-21 16:40:36,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:40:36,973 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] L689-4-->L689-1: Formula: (= |v_#race~flag2~0_1| 0) InVars {} OutVars{#race~flag2~0=|v_#race~flag2~0_1|} AuxVars[] AssignedVars[#race~flag2~0][47], [208#true, Black: 192#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 83#L689-1true, Black: 196#true, 151#L706-3true, thr1Thread1of1ForFork0InUse, 202#true, Black: 204#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|)]) [2022-11-21 16:40:36,974 INFO L383 tUnfolder$Statistics]: this new event has 127 ancestors and is cut-off event [2022-11-21 16:40:36,974 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2022-11-21 16:40:36,975 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is cut-off event [2022-11-21 16:40:36,979 INFO L386 tUnfolder$Statistics]: existing Event has 83 ancestors and is cut-off event [2022-11-21 16:40:36,980 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([546] L689-4-->L689-1: Formula: (= |v_#race~flag2~0_1| 0) InVars {} OutVars{#race~flag2~0=|v_#race~flag2~0_1|} AuxVars[] AssignedVars[#race~flag2~0][47], [208#true, Black: 192#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 83#L689-1true, 14#L706-4true, Black: 196#true, thr1Thread1of1ForFork0InUse, 202#true, Black: 204#(= |ULTIMATE.start_thr2_#t~nondet10#1| |#race~flag2~0|)]) [2022-11-21 16:40:36,981 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-21 16:40:36,981 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2022-11-21 16:40:36,981 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2022-11-21 16:40:36,981 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-21 16:40:36,984 INFO L130 PetriNetUnfolder]: 1523/5536 cut-off events. [2022-11-21 16:40:36,985 INFO L131 PetriNetUnfolder]: For 896/936 co-relation queries the response was YES. [2022-11-21 16:40:37,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9361 conditions, 5536 events. 1523/5536 cut-off events. For 896/936 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 48128 event pairs, 504 based on Foata normal form. 1/4133 useless extension candidates. Maximal degree in co-relation 9332. Up to 1836 conditions per place. [2022-11-21 16:40:37,031 INFO L137 encePairwiseOnDemand]: 199/209 looper letters, 54 selfloop transitions, 9 changer transitions 0/239 dead transitions. [2022-11-21 16:40:37,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 239 transitions, 852 flow [2022-11-21 16:40:37,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:40:37,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:40:37,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2022-11-21 16:40:37,039 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8421052631578947 [2022-11-21 16:40:37,039 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2022-11-21 16:40:37,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2022-11-21 16:40:37,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:40:37,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2022-11-21 16:40:37,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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) [2022-11-21 16:40:37,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2022-11-21 16:40:37,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2022-11-21 16:40:37,044 INFO L175 Difference]: Start difference. First operand has 177 places, 219 transitions, 674 flow. Second operand 3 states and 528 transitions. [2022-11-21 16:40:37,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 239 transitions, 852 flow [2022-11-21 16:40:37,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 239 transitions, 820 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:40:37,054 INFO L231 Difference]: Finished difference. Result has 179 places, 227 transitions, 724 flow [2022-11-21 16:40:37,054 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=179, PETRI_TRANSITIONS=227} [2022-11-21 16:40:37,056 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -7 predicate places. [2022-11-21 16:40:37,056 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 227 transitions, 724 flow [2022-11-21 16:40:37,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2022-11-21 16:40:37,057 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:40:37,058 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] [2022-11-21 16:40:37,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:40:37,059 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-21 16:40:37,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:40:37,059 INFO L85 PathProgramCache]: Analyzing trace with hash -627574054, now seen corresponding path program 1 times [2022-11-21 16:40:37,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:40:37,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133651287] [2022-11-21 16:40:37,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:40:37,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:40:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:40:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:40:37,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:40:37,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133651287] [2022-11-21 16:40:37,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133651287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:40:37,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:40:37,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:40:37,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047688069] [2022-11-21 16:40:37,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:40:37,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:40:37,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:40:37,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:40:37,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:40:37,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 209 [2022-11-21 16:40:37,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 227 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2022-11-21 16:40:37,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:40:37,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 209 [2022-11-21 16:40:37,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:40:38,160 INFO L130 PetriNetUnfolder]: 1921/7423 cut-off events. [2022-11-21 16:40:38,160 INFO L131 PetriNetUnfolder]: For 2569/2716 co-relation queries the response was YES. [2022-11-21 16:40:38,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13175 conditions, 7423 events. 1921/7423 cut-off events. For 2569/2716 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 70595 event pairs, 180 based on Foata normal form. 21/5833 useless extension candidates. Maximal degree in co-relation 13145. Up to 1323 conditions per place. [2022-11-21 16:40:38,222 INFO L137 encePairwiseOnDemand]: 186/209 looper letters, 56 selfloop transitions, 29 changer transitions 0/264 dead transitions. [2022-11-21 16:40:38,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 264 transitions, 1050 flow [2022-11-21 16:40:38,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:40:38,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:40:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 542 transitions. [2022-11-21 16:40:38,225 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8644338118022329 [2022-11-21 16:40:38,225 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 542 transitions. [2022-11-21 16:40:38,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 542 transitions. [2022-11-21 16:40:38,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:40:38,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 542 transitions. [2022-11-21 16:40:38,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 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) [2022-11-21 16:40:38,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2022-11-21 16:40:38,231 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2022-11-21 16:40:38,231 INFO L175 Difference]: Start difference. First operand has 179 places, 227 transitions, 724 flow. Second operand 3 states and 542 transitions. [2022-11-21 16:40:38,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 264 transitions, 1050 flow [2022-11-21 16:40:38,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 264 transitions, 994 flow, removed 12 selfloop flow, removed 2 redundant places. [2022-11-21 16:40:38,247 INFO L231 Difference]: Finished difference. Result has 181 places, 256 transitions, 990 flow [2022-11-21 16:40:38,248 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=990, PETRI_PLACES=181, PETRI_TRANSITIONS=256} [2022-11-21 16:40:38,251 INFO L288 CegarLoopForPetriNet]: 186 programPoint places, -5 predicate places. [2022-11-21 16:40:38,252 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 256 transitions, 990 flow [2022-11-21 16:40:38,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2022-11-21 16:40:38,252 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:40:38,253 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] [2022-11-21 16:40:38,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:40:38,253 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-21 16:40:38,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:40:38,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1071943948, now seen corresponding path program 1 times [2022-11-21 16:40:38,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:40:38,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308332548] [2022-11-21 16:40:38,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:40:38,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:40:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:40:38,294 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:40:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:40:38,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:40:38,344 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:40:38,345 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2022-11-21 16:40:38,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2022-11-21 16:40:38,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2022-11-21 16:40:38,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2022-11-21 16:40:38,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2022-11-21 16:40:38,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2022-11-21 16:40:38,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2022-11-21 16:40:38,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2022-11-21 16:40:38,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2022-11-21 16:40:38,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2022-11-21 16:40:38,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2022-11-21 16:40:38,351 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2022-11-21 16:40:38,351 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2022-11-21 16:40:38,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2022-11-21 16:40:38,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2022-11-21 16:40:38,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2022-11-21 16:40:38,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2022-11-21 16:40:38,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2022-11-21 16:40:38,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2022-11-21 16:40:38,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2022-11-21 16:40:38,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2022-11-21 16:40:38,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2022-11-21 16:40:38,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2022-11-21 16:40:38,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2022-11-21 16:40:38,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2022-11-21 16:40:38,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2022-11-21 16:40:38,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2022-11-21 16:40:38,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 40 remaining) [2022-11-21 16:40:38,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2022-11-21 16:40:38,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2022-11-21 16:40:38,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2022-11-21 16:40:38,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2022-11-21 16:40:38,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2022-11-21 16:40:38,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2022-11-21 16:40:38,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2022-11-21 16:40:38,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2022-11-21 16:40:38,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2022-11-21 16:40:38,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2022-11-21 16:40:38,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2022-11-21 16:40:38,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2022-11-21 16:40:38,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:40:38,366 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-21 16:40:38,376 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:40:38,376 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:40:38,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:40:38 BasicIcfg [2022-11-21 16:40:38,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:40:38,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:40:38,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:40:38,438 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:40:38,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:40:33" (3/4) ... [2022-11-21 16:40:38,442 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:40:38,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:40:38,443 INFO L158 Benchmark]: Toolchain (without parser) took 6323.79ms. Allocated memory was 169.9MB in the beginning and 369.1MB in the end (delta: 199.2MB). Free memory was 136.6MB in the beginning and 157.6MB in the end (delta: -21.0MB). Peak memory consumption was 176.7MB. Max. memory is 16.1GB. [2022-11-21 16:40:38,444 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 127.9MB. Free memory was 98.6MB in the beginning and 98.5MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:40:38,444 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.10ms. Allocated memory is still 169.9MB. Free memory was 136.6MB in the beginning and 129.5MB in the end (delta: 7.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:40:38,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.22ms. Allocated memory is still 169.9MB. Free memory was 129.0MB in the beginning and 127.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:40:38,445 INFO L158 Benchmark]: Boogie Preprocessor took 30.75ms. Allocated memory is still 169.9MB. Free memory was 127.4MB in the beginning and 125.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:40:38,446 INFO L158 Benchmark]: RCFGBuilder took 605.32ms. Allocated memory is still 169.9MB. Free memory was 125.3MB in the beginning and 108.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 16:40:38,446 INFO L158 Benchmark]: TraceAbstraction took 5027.41ms. Allocated memory was 169.9MB in the beginning and 369.1MB in the end (delta: 199.2MB). Free memory was 107.2MB in the beginning and 157.6MB in the end (delta: -50.4MB). Peak memory consumption was 150.6MB. Max. memory is 16.1GB. [2022-11-21 16:40:38,447 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 369.1MB. Free memory is still 157.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:40:38,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 127.9MB. Free memory was 98.6MB in the beginning and 98.5MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.10ms. Allocated memory is still 169.9MB. Free memory was 136.6MB in the beginning and 129.5MB in the end (delta: 7.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.22ms. Allocated memory is still 169.9MB. Free memory was 129.0MB in the beginning and 127.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.75ms. Allocated memory is still 169.9MB. Free memory was 127.4MB in the beginning and 125.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 605.32ms. Allocated memory is still 169.9MB. Free memory was 125.3MB in the beginning and 108.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5027.41ms. Allocated memory was 169.9MB in the beginning and 369.1MB in the end (delta: 199.2MB). Free memory was 107.2MB in the beginning and 157.6MB in the end (delta: -50.4MB). Peak memory consumption was 150.6MB. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 369.1MB. Free memory is still 157.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 689]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int flag1 = 0, flag2 = 0; VAL [flag1=0, flag2=0] [L685] 0 int x; VAL [flag1=0, flag2=0, x=0] [L724] 0 pthread_t t; VAL [flag1=0, flag2=0, t={3:0}, x=0] [L725] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, flag1=0, flag2=0, pthread_create(&t, 0, thr1, 0)=-1, t={3:0}, x=0] [L687] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, flag1=0, flag2=0, x=0] [L688] 1 flag1 = 1 VAL [arg={0:0}, arg={0:0}, flag1=1, flag2=0, x=0] [L689] 1 flag2 >= 3 VAL [arg={0:0}, arg={0:0}, flag1=1, flag2=0, x=0] [L726] CALL 0 thr2(0) [L705] COND TRUE 0 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, flag1=1, flag2=0, x=0] [L706] 0 flag2 = 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, flag1=1, flag2=1, flag2 = 1=49, x=0] [L689] 1 flag2 >= 3 VAL [arg={0:0}, arg={0:0}, flag1=1, flag2=1, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [706] and C: flag2 >= 3 [689] - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: 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 3 procedures, 260 locations, 40 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: 4.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 71 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 182 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 248 IncrementalHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 182 mSDtfsCounter, 248 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=990occurred in iteration=5, InterpolantAutomatonStates: 15, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 196 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2022-11-21 16:40:38,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13f7b91b-0940-43bf-a88b-c31dba3ca608/bin/uautomizer-vX5HgA9Q3a/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