./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/reorder_c11_good-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/reorder_c11_good-40.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R --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 bc410c23b8a40101ed787fe72a0515ef047b7022a45484b309d3277414201100 --- 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-38b53e6 [2022-11-25 17:38:52,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:38:52,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:38:52,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:38:52,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:38:52,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:38:52,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:38:52,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:38:52,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:38:52,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:38:52,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:38:52,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:38:52,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:38:52,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:38:52,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:38:52,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:38:52,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:38:52,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:38:52,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:38:52,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:38:52,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:38:52,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:38:52,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:38:52,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:38:52,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:38:52,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:38:52,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:38:52,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:38:52,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:38:52,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:38:52,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:38:52,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:38:52,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:38:52,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:38:52,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:38:52,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:38:52,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:38:52,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:38:52,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:38:52,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:38:52,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:38:52,983 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:38:53,010 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:38:53,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:38:53,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:38:53,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:38:53,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:38:53,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:38:53,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:38:53,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:38:53,014 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:38:53,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:38:53,014 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:38:53,014 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:38:53,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:38:53,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:38:53,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:38:53,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:38:53,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:38:53,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:38:53,016 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:38:53,016 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:38:53,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:38:53,016 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:38:53,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:38:53,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:38:53,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:38:53,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:38:53,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:38:53,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:38:53,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:38:53,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:38:53,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:38:53,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:38:53,018 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:38:53,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:38:53,018 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:38:53,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:38:53,018 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc410c23b8a40101ed787fe72a0515ef047b7022a45484b309d3277414201100 [2022-11-25 17:38:53,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:38:53,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:38:53,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:38:53,368 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:38:53,369 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:38:53,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-deagle/reorder_c11_good-40.i [2022-11-25 17:38:56,401 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:38:56,746 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:38:56,747 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/sv-benchmarks/c/pthread-deagle/reorder_c11_good-40.i [2022-11-25 17:38:56,772 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/data/784a62f77/e3ba1c8510264af0bec15115abf26798/FLAG95875660e [2022-11-25 17:38:56,796 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/data/784a62f77/e3ba1c8510264af0bec15115abf26798 [2022-11-25 17:38:56,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:38:56,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:38:56,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:38:56,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:38:56,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:38:56,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:38:56" (1/1) ... [2022-11-25 17:38:56,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31fbf272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:56, skipping insertion in model container [2022-11-25 17:38:56,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:38:56" (1/1) ... [2022-11-25 17:38:56,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:38:56,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:38:57,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:38:57,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:38:57,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:38:57,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:38:57,291 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_67ea688f-ad17-4799-8608-04034f83b36c/sv-benchmarks/c/pthread-deagle/reorder_c11_good-40.i[30195,30208] [2022-11-25 17:38:57,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:38:57,338 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:38:57,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:38:57,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:38:57,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:38:57,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:38:57,422 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_67ea688f-ad17-4799-8608-04034f83b36c/sv-benchmarks/c/pthread-deagle/reorder_c11_good-40.i[30195,30208] [2022-11-25 17:38:57,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:38:57,468 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:38:57,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:57 WrapperNode [2022-11-25 17:38:57,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:38:57,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:38:57,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:38:57,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:38:57,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:57" (1/1) ... [2022-11-25 17:38:57,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:57" (1/1) ... [2022-11-25 17:38:57,543 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137 [2022-11-25 17:38:57,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:38:57,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:38:57,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:38:57,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:38:57,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:57" (1/1) ... [2022-11-25 17:38:57,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:57" (1/1) ... [2022-11-25 17:38:57,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:57" (1/1) ... [2022-11-25 17:38:57,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:57" (1/1) ... [2022-11-25 17:38:57,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:57" (1/1) ... [2022-11-25 17:38:57,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:57" (1/1) ... [2022-11-25 17:38:57,577 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:57" (1/1) ... [2022-11-25 17:38:57,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:57" (1/1) ... [2022-11-25 17:38:57,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:38:57,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:38:57,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:38:57,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:38:57,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:57" (1/1) ... [2022-11-25 17:38:57,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:38:57,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:38:57,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:38:57,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:38:57,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:38:57,684 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-11-25 17:38:57,684 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-11-25 17:38:57,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:38:57,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:38:57,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:38:57,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:38:57,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:38:57,685 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-11-25 17:38:57,686 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-11-25 17:38:57,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:38:57,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:38:57,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:38:57,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:38:57,688 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:38:57,874 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:38:57,877 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:38:58,354 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:38:58,382 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:38:58,383 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-25 17:38:58,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:38:58 BoogieIcfgContainer [2022-11-25 17:38:58,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:38:58,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:38:58,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:38:58,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:38:58,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:38:56" (1/3) ... [2022-11-25 17:38:58,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364dc803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:38:58, skipping insertion in model container [2022-11-25 17:38:58,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:38:57" (2/3) ... [2022-11-25 17:38:58,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364dc803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:38:58, skipping insertion in model container [2022-11-25 17:38:58,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:38:58" (3/3) ... [2022-11-25 17:38:58,399 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_good-40.i [2022-11-25 17:38:58,408 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:38:58,419 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:38:58,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-25 17:38:58,420 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:38:58,509 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-25 17:38:58,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 209 transitions, 440 flow [2022-11-25 17:38:58,816 INFO L130 PetriNetUnfolder]: 30/519 cut-off events. [2022-11-25 17:38:58,816 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-25 17:38:58,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 519 events. 30/519 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2097 event pairs, 0 based on Foata normal form. 0/408 useless extension candidates. Maximal degree in co-relation 246. Up to 8 conditions per place. [2022-11-25 17:38:58,830 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 209 transitions, 440 flow [2022-11-25 17:38:58,847 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 209 transitions, 440 flow [2022-11-25 17:38:58,852 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:38:58,887 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 202 places, 209 transitions, 440 flow [2022-11-25 17:38:58,890 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 202 places, 209 transitions, 440 flow [2022-11-25 17:38:58,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 209 transitions, 440 flow [2022-11-25 17:38:58,978 INFO L130 PetriNetUnfolder]: 30/519 cut-off events. [2022-11-25 17:38:58,978 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-25 17:38:58,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 519 events. 30/519 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2097 event pairs, 0 based on Foata normal form. 0/408 useless extension candidates. Maximal degree in co-relation 246. Up to 8 conditions per place. [2022-11-25 17:38:58,990 INFO L119 LiptonReduction]: Number of co-enabled transitions 9824 [2022-11-25 17:39:04,842 INFO L134 LiptonReduction]: Checked pairs total: 19162 [2022-11-25 17:39:04,842 INFO L136 LiptonReduction]: Total number of compositions: 213 [2022-11-25 17:39:04,859 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:39:04,866 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;@553e0e30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:39:04,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-25 17:39:04,867 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:39:04,868 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:39:04,868 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:39:04,869 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:39:04,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-25 17:39:04,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:39:04,875 INFO L85 PathProgramCache]: Analyzing trace with hash 777, now seen corresponding path program 1 times [2022-11-25 17:39:04,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:39:04,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010627474] [2022-11-25 17:39:04,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:04,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:39:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:39:05,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:39:05,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:39:05,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010627474] [2022-11-25 17:39:05,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010627474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:39:05,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:39:05,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:39:05,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839047247] [2022-11-25 17:39:05,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:39:05,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:39:05,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:39:05,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:39:05,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:39:05,072 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 422 [2022-11-25 17:39:05,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 64 transitions, 150 flow. Second operand has 2 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 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) [2022-11-25 17:39:05,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:39:05,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 422 [2022-11-25 17:39:05,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:39:05,253 INFO L130 PetriNetUnfolder]: 406/910 cut-off events. [2022-11-25 17:39:05,253 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-11-25 17:39:05,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1644 conditions, 910 events. 406/910 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 5225 event pairs, 314 based on Foata normal form. 0/646 useless extension candidates. Maximal degree in co-relation 1202. Up to 692 conditions per place. [2022-11-25 17:39:05,260 INFO L137 encePairwiseOnDemand]: 398/422 looper letters, 27 selfloop transitions, 0 changer transitions 2/40 dead transitions. [2022-11-25 17:39:05,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 40 transitions, 160 flow [2022-11-25 17:39:05,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:39:05,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:39:05,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 437 transitions. [2022-11-25 17:39:05,277 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5177725118483413 [2022-11-25 17:39:05,278 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 437 transitions. [2022-11-25 17:39:05,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 437 transitions. [2022-11-25 17:39:05,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:39:05,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 437 transitions. [2022-11-25 17:39:05,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 218.5) internal successors, (437), 2 states have internal predecessors, (437), 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) [2022-11-25 17:39:05,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 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) [2022-11-25 17:39:05,295 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 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) [2022-11-25 17:39:05,297 INFO L175 Difference]: Start difference. First operand has 63 places, 64 transitions, 150 flow. Second operand 2 states and 437 transitions. [2022-11-25 17:39:05,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 40 transitions, 160 flow [2022-11-25 17:39:05,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 40 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:39:05,304 INFO L231 Difference]: Finished difference. Result has 40 places, 38 transitions, 92 flow [2022-11-25 17:39:05,307 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=422, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=92, PETRI_PLACES=40, PETRI_TRANSITIONS=38} [2022-11-25 17:39:05,311 INFO L288 CegarLoopForPetriNet]: 63 programPoint places, -23 predicate places. [2022-11-25 17:39:05,311 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 38 transitions, 92 flow [2022-11-25 17:39:05,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 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) [2022-11-25 17:39:05,312 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:39:05,312 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-11-25 17:39:05,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:39:05,313 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-25 17:39:05,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:39:05,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1415350828, now seen corresponding path program 1 times [2022-11-25 17:39:05,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:39:05,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018087705] [2022-11-25 17:39:05,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:05,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:39:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:39:05,360 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:39:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:39:05,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:39:05,404 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:39:05,406 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2022-11-25 17:39:05,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-11-25 17:39:05,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-11-25 17:39:05,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-11-25 17:39:05,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-11-25 17:39:05,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-11-25 17:39:05,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-11-25 17:39:05,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-11-25 17:39:05,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-11-25 17:39:05,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2022-11-25 17:39:05,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-11-25 17:39:05,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-11-25 17:39:05,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-11-25 17:39:05,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-11-25 17:39:05,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-11-25 17:39:05,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2022-11-25 17:39:05,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-11-25 17:39:05,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-11-25 17:39:05,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-11-25 17:39:05,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-11-25 17:39:05,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-11-25 17:39:05,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2022-11-25 17:39:05,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2022-11-25 17:39:05,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2022-11-25 17:39:05,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-11-25 17:39:05,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-11-25 17:39:05,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-11-25 17:39:05,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-11-25 17:39:05,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-11-25 17:39:05,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 36 remaining) [2022-11-25 17:39:05,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-11-25 17:39:05,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-11-25 17:39:05,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-11-25 17:39:05,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-11-25 17:39:05,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-11-25 17:39:05,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2022-11-25 17:39:05,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:39:05,419 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:39:05,422 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 17:39:05,422 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 17:39:05,459 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-25 17:39:05,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 258 transitions, 564 flow [2022-11-25 17:39:05,839 INFO L130 PetriNetUnfolder]: 125/1733 cut-off events. [2022-11-25 17:39:05,839 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-25 17:39:05,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1830 conditions, 1733 events. 125/1733 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 10243 event pairs, 2 based on Foata normal form. 0/1368 useless extension candidates. Maximal degree in co-relation 976. Up to 32 conditions per place. [2022-11-25 17:39:05,858 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 258 transitions, 564 flow [2022-11-25 17:39:05,873 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 247 places, 258 transitions, 564 flow [2022-11-25 17:39:05,874 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:39:05,874 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 247 places, 258 transitions, 564 flow [2022-11-25 17:39:05,874 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 247 places, 258 transitions, 564 flow [2022-11-25 17:39:05,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 258 transitions, 564 flow [2022-11-25 17:39:06,227 INFO L130 PetriNetUnfolder]: 125/1733 cut-off events. [2022-11-25 17:39:06,228 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-25 17:39:06,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1830 conditions, 1733 events. 125/1733 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 10243 event pairs, 2 based on Foata normal form. 0/1368 useless extension candidates. Maximal degree in co-relation 976. Up to 32 conditions per place. [2022-11-25 17:39:06,296 INFO L119 LiptonReduction]: Number of co-enabled transitions 24148 [2022-11-25 17:39:12,266 INFO L134 LiptonReduction]: Checked pairs total: 62386 [2022-11-25 17:39:12,266 INFO L136 LiptonReduction]: Total number of compositions: 238 [2022-11-25 17:39:12,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:39:12,270 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;@553e0e30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:39:12,270 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-11-25 17:39:12,271 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-11-25 17:39:12,272 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:39:12,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:39:12,272 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:39:12,272 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-25 17:39:12,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:39:12,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2022-11-25 17:39:12,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:39:12,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700413742] [2022-11-25 17:39:12,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:12,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:39:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:39:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:39:12,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:39:12,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700413742] [2022-11-25 17:39:12,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700413742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:39:12,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:39:12,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:39:12,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886114825] [2022-11-25 17:39:12,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:39:12,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:39:12,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:39:12,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:39:12,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:39:12,292 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 496 [2022-11-25 17:39:12,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 96 transitions, 240 flow. Second operand has 2 states, 2 states have (on average 228.5) internal successors, (457), 2 states have internal predecessors, (457), 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) [2022-11-25 17:39:12,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:39:12,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 496 [2022-11-25 17:39:12,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:39:17,506 INFO L130 PetriNetUnfolder]: 28160/44692 cut-off events. [2022-11-25 17:39:17,507 INFO L131 PetriNetUnfolder]: For 3429/3429 co-relation queries the response was YES. [2022-11-25 17:39:17,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83300 conditions, 44692 events. 28160/44692 cut-off events. For 3429/3429 co-relation queries the response was YES. Maximal size of possible extension queue 1750. Compared 353762 event pairs, 20553 based on Foata normal form. 0/36544 useless extension candidates. Maximal degree in co-relation 26075. Up to 36695 conditions per place. [2022-11-25 17:39:17,849 INFO L137 encePairwiseOnDemand]: 470/496 looper letters, 47 selfloop transitions, 0 changer transitions 0/70 dead transitions. [2022-11-25 17:39:17,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 70 transitions, 282 flow [2022-11-25 17:39:17,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:39:17,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:39:17,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 529 transitions. [2022-11-25 17:39:17,855 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5332661290322581 [2022-11-25 17:39:17,855 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 529 transitions. [2022-11-25 17:39:17,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 529 transitions. [2022-11-25 17:39:17,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:39:17,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 529 transitions. [2022-11-25 17:39:17,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 264.5) internal successors, (529), 2 states have internal predecessors, (529), 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) [2022-11-25 17:39:17,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 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) [2022-11-25 17:39:17,867 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 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) [2022-11-25 17:39:17,867 INFO L175 Difference]: Start difference. First operand has 91 places, 96 transitions, 240 flow. Second operand 2 states and 529 transitions. [2022-11-25 17:39:17,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 70 transitions, 282 flow [2022-11-25 17:39:17,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 70 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:39:17,888 INFO L231 Difference]: Finished difference. Result has 66 places, 70 transitions, 188 flow [2022-11-25 17:39:17,889 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=496, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=188, PETRI_PLACES=66, PETRI_TRANSITIONS=70} [2022-11-25 17:39:17,892 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, -25 predicate places. [2022-11-25 17:39:17,892 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 70 transitions, 188 flow [2022-11-25 17:39:17,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 228.5) internal successors, (457), 2 states have internal predecessors, (457), 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) [2022-11-25 17:39:17,893 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:39:17,893 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:39:17,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:39:17,895 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-25 17:39:17,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:39:17,895 INFO L85 PathProgramCache]: Analyzing trace with hash 328212657, now seen corresponding path program 1 times [2022-11-25 17:39:17,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:39:17,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165342053] [2022-11-25 17:39:17,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:17,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:39:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:39:18,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:39:18,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:39:18,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165342053] [2022-11-25 17:39:18,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165342053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:39:18,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:39:18,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:39:18,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257830588] [2022-11-25 17:39:18,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:39:18,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:39:18,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:39:18,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:39:18,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:39:18,111 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 496 [2022-11-25 17:39:18,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 70 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 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) [2022-11-25 17:39:18,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:39:18,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 496 [2022-11-25 17:39:18,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:39:21,720 INFO L130 PetriNetUnfolder]: 21712/33773 cut-off events. [2022-11-25 17:39:21,721 INFO L131 PetriNetUnfolder]: For 1914/1914 co-relation queries the response was YES. [2022-11-25 17:39:21,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64426 conditions, 33773 events. 21712/33773 cut-off events. For 1914/1914 co-relation queries the response was YES. Maximal size of possible extension queue 1173. Compared 251071 event pairs, 7804 based on Foata normal form. 0/29057 useless extension candidates. Maximal degree in co-relation 64419. Up to 15251 conditions per place. [2022-11-25 17:39:21,941 INFO L137 encePairwiseOnDemand]: 487/496 looper letters, 77 selfloop transitions, 8 changer transitions 0/108 dead transitions. [2022-11-25 17:39:21,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 108 transitions, 458 flow [2022-11-25 17:39:21,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:39:21,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:39:21,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 734 transitions. [2022-11-25 17:39:21,945 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4932795698924731 [2022-11-25 17:39:21,946 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 734 transitions. [2022-11-25 17:39:21,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 734 transitions. [2022-11-25 17:39:21,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:39:21,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 734 transitions. [2022-11-25 17:39:21,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 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) [2022-11-25 17:39:21,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 496.0) internal successors, (1984), 4 states have internal predecessors, (1984), 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) [2022-11-25 17:39:21,955 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 496.0) internal successors, (1984), 4 states have internal predecessors, (1984), 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) [2022-11-25 17:39:21,955 INFO L175 Difference]: Start difference. First operand has 66 places, 70 transitions, 188 flow. Second operand 3 states and 734 transitions. [2022-11-25 17:39:21,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 108 transitions, 458 flow [2022-11-25 17:39:21,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 108 transitions, 458 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:39:21,965 INFO L231 Difference]: Finished difference. Result has 69 places, 74 transitions, 230 flow [2022-11-25 17:39:21,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=496, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=69, PETRI_TRANSITIONS=74} [2022-11-25 17:39:21,969 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, -22 predicate places. [2022-11-25 17:39:21,969 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 74 transitions, 230 flow [2022-11-25 17:39:21,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 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) [2022-11-25 17:39:21,970 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:39:21,970 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:39:21,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:39:21,971 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-25 17:39:21,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:39:21,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1924860871, now seen corresponding path program 1 times [2022-11-25 17:39:21,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:39:21,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537531799] [2022-11-25 17:39:21,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:21,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:39:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:39:22,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:39:22,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:39:22,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537531799] [2022-11-25 17:39:22,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537531799] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:39:22,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529187773] [2022-11-25 17:39:22,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:22,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:39:22,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:39:22,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:39:22,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:39:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:39:22,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:39:22,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:39:22,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:39:22,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:39:22,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529187773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:39:22,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:39:22,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-11-25 17:39:22,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488368852] [2022-11-25 17:39:22,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:39:22,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:39:22,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:39:22,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:39:22,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:39:22,260 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 496 [2022-11-25 17:39:22,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 74 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2022-11-25 17:39:22,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:39:22,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 496 [2022-11-25 17:39:22,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:39:33,280 INFO L130 PetriNetUnfolder]: 79309/115114 cut-off events. [2022-11-25 17:39:33,281 INFO L131 PetriNetUnfolder]: For 24729/24729 co-relation queries the response was YES. [2022-11-25 17:39:33,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242957 conditions, 115114 events. 79309/115114 cut-off events. For 24729/24729 co-relation queries the response was YES. Maximal size of possible extension queue 3114. Compared 855077 event pairs, 24382 based on Foata normal form. 0/99868 useless extension candidates. Maximal degree in co-relation 242948. Up to 57725 conditions per place. [2022-11-25 17:39:34,023 INFO L137 encePairwiseOnDemand]: 480/496 looper letters, 94 selfloop transitions, 12 changer transitions 0/121 dead transitions. [2022-11-25 17:39:34,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 121 transitions, 588 flow [2022-11-25 17:39:34,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:39:34,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:39:34,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2022-11-25 17:39:34,027 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5047043010752689 [2022-11-25 17:39:34,027 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 751 transitions. [2022-11-25 17:39:34,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 751 transitions. [2022-11-25 17:39:34,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:39:34,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 751 transitions. [2022-11-25 17:39:34,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2022-11-25 17:39:34,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 496.0) internal successors, (1984), 4 states have internal predecessors, (1984), 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) [2022-11-25 17:39:34,036 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 496.0) internal successors, (1984), 4 states have internal predecessors, (1984), 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) [2022-11-25 17:39:34,036 INFO L175 Difference]: Start difference. First operand has 69 places, 74 transitions, 230 flow. Second operand 3 states and 751 transitions. [2022-11-25 17:39:34,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 121 transitions, 588 flow [2022-11-25 17:39:34,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 121 transitions, 575 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:39:34,095 INFO L231 Difference]: Finished difference. Result has 72 places, 86 transitions, 326 flow [2022-11-25 17:39:34,095 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=496, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=72, PETRI_TRANSITIONS=86} [2022-11-25 17:39:34,097 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, -19 predicate places. [2022-11-25 17:39:34,098 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 86 transitions, 326 flow [2022-11-25 17:39:34,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2022-11-25 17:39:34,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:39:34,099 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 17:39:34,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 17:39:34,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67ea688f-ad17-4799-8608-04034f83b36c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:39:34,305 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2022-11-25 17:39:34,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:39:34,306 INFO L85 PathProgramCache]: Analyzing trace with hash -360267173, now seen corresponding path program 1 times [2022-11-25 17:39:34,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:39:34,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967836154] [2022-11-25 17:39:34,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:34,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:39:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:39:34,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:39:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:39:34,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:39:34,396 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:39:34,396 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2022-11-25 17:39:34,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2022-11-25 17:39:34,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2022-11-25 17:39:34,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2022-11-25 17:39:34,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2022-11-25 17:39:34,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2022-11-25 17:39:34,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (35 of 42 remaining) [2022-11-25 17:39:34,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2022-11-25 17:39:34,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2022-11-25 17:39:34,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2022-11-25 17:39:34,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2022-11-25 17:39:34,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2022-11-25 17:39:34,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2022-11-25 17:39:34,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2022-11-25 17:39:34,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2022-11-25 17:39:34,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2022-11-25 17:39:34,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2022-11-25 17:39:34,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2022-11-25 17:39:34,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2022-11-25 17:39:34,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2022-11-25 17:39:34,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2022-11-25 17:39:34,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2022-11-25 17:39:34,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2022-11-25 17:39:34,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2022-11-25 17:39:34,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2022-11-25 17:39:34,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2022-11-25 17:39:34,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2022-11-25 17:39:34,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2022-11-25 17:39:34,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2022-11-25 17:39:34,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 42 remaining) [2022-11-25 17:39:34,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2022-11-25 17:39:34,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2022-11-25 17:39:34,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2022-11-25 17:39:34,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2022-11-25 17:39:34,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2022-11-25 17:39:34,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2022-11-25 17:39:34,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2022-11-25 17:39:34,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2022-11-25 17:39:34,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2022-11-25 17:39:34,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2022-11-25 17:39:34,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2022-11-25 17:39:34,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2022-11-25 17:39:34,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:39:34,415 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 17:39:34,416 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 17:39:34,417 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-25 17:39:34,488 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-11-25 17:39:34,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 307 transitions, 692 flow [2022-11-25 17:39:35,913 INFO L130 PetriNetUnfolder]: 532/5831 cut-off events. [2022-11-25 17:39:35,914 INFO L131 PetriNetUnfolder]: For 419/419 co-relation queries the response was YES. [2022-11-25 17:39:35,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6282 conditions, 5831 events. 532/5831 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 46948 event pairs, 64 based on Foata normal form. 0/4642 useless extension candidates. Maximal degree in co-relation 3329. Up to 192 conditions per place. [2022-11-25 17:39:35,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 307 transitions, 692 flow [2022-11-25 17:39:36,043 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 292 places, 307 transitions, 692 flow [2022-11-25 17:39:36,043 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:39:36,044 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 292 places, 307 transitions, 692 flow [2022-11-25 17:39:36,044 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 292 places, 307 transitions, 692 flow [2022-11-25 17:39:36,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 307 transitions, 692 flow [2022-11-25 17:39:37,269 INFO L130 PetriNetUnfolder]: 532/5831 cut-off events. [2022-11-25 17:39:37,269 INFO L131 PetriNetUnfolder]: For 419/419 co-relation queries the response was YES. [2022-11-25 17:39:37,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6282 conditions, 5831 events. 532/5831 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 46948 event pairs, 64 based on Foata normal form. 0/4642 useless extension candidates. Maximal degree in co-relation 3329. Up to 192 conditions per place. [2022-11-25 17:39:37,493 INFO L119 LiptonReduction]: Number of co-enabled transitions 42972 [2022-11-25 17:39:44,995 INFO L134 LiptonReduction]: Checked pairs total: 125838 [2022-11-25 17:39:44,995 INFO L136 LiptonReduction]: Total number of compositions: 276 [2022-11-25 17:39:44,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:39:44,998 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;@553e0e30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:39:44,998 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2022-11-25 17:39:44,999 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-11-25 17:39:45,000 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:39:45,000 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:39:45,000 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:39:45,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-11-25 17:39:45,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:39:45,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1950, now seen corresponding path program 1 times [2022-11-25 17:39:45,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:39:45,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048497294] [2022-11-25 17:39:45,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:45,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:39:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:39:45,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:39:45,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:39:45,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048497294] [2022-11-25 17:39:45,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048497294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:39:45,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:39:45,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:39:45,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388744696] [2022-11-25 17:39:45,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:39:45,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:39:45,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:39:45,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:39:45,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:39:45,014 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 583 [2022-11-25 17:39:45,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 123 transitions, 324 flow. Second operand has 2 states, 2 states have (on average 264.5) internal successors, (529), 2 states have internal predecessors, (529), 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) [2022-11-25 17:39:45,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:39:45,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 583 [2022-11-25 17:39:45,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand