./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/clever.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/clever.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc --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 93a2fdd4bcf1d0c2ab8b4e49feeb28ec4b1782148939310f1cb0ffe97948195e --- 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-5e519f3 [2022-11-02 21:00:28,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:00:28,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:00:28,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:00:28,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:00:28,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:00:28,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:00:28,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:00:28,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:00:28,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:00:28,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:00:28,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:00:28,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:00:28,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:00:28,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:00:28,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:00:28,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:00:28,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:00:28,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:00:28,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:00:28,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:00:28,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:00:28,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:00:28,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:00:28,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:00:28,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:00:28,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:00:28,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:00:28,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:00:28,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:00:28,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:00:28,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:00:28,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:00:28,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:00:28,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:00:28,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:00:28,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:00:28,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:00:28,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:00:28,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:00:28,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:00:28,987 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:00:29,030 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:00:29,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:00:29,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:00:29,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:00:29,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:00:29,032 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:00:29,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:00:29,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:00:29,033 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:00:29,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:00:29,034 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:00:29,034 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:00:29,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:00:29,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:00:29,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:00:29,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:00:29,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:00:29,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:00:29,035 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:00:29,035 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:00:29,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:00:29,036 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:00:29,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:00:29,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:00:29,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:00:29,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:00:29,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:00:29,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:00:29,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:00:29,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:00:29,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:00:29,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:00:29,038 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:00:29,038 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:00:29,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:00:29,038 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93a2fdd4bcf1d0c2ab8b4e49feeb28ec4b1782148939310f1cb0ffe97948195e [2022-11-02 21:00:29,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:00:29,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:00:29,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:00:29,380 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:00:29,380 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:00:29,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/clever.wvr.c [2022-11-02 21:00:29,460 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/data/8a3f81c24/6c7d1eb109724696bfee124b4e1b12d1/FLAGc50a09dab [2022-11-02 21:00:30,022 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:00:30,023 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/sv-benchmarks/c/weaver/clever.wvr.c [2022-11-02 21:00:30,035 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/data/8a3f81c24/6c7d1eb109724696bfee124b4e1b12d1/FLAGc50a09dab [2022-11-02 21:00:30,366 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/data/8a3f81c24/6c7d1eb109724696bfee124b4e1b12d1 [2022-11-02 21:00:30,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:00:30,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:00:30,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:00:30,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:00:30,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:00:30,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:00:30" (1/1) ... [2022-11-02 21:00:30,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67012a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30, skipping insertion in model container [2022-11-02 21:00:30,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:00:30" (1/1) ... [2022-11-02 21:00:30,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:00:30,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:00:30,631 WARN L230 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_59ca9946-3c15-4542-b3b8-26e9f08fb847/sv-benchmarks/c/weaver/clever.wvr.c[2133,2146] [2022-11-02 21:00:30,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:00:30,641 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:00:30,668 WARN L230 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_59ca9946-3c15-4542-b3b8-26e9f08fb847/sv-benchmarks/c/weaver/clever.wvr.c[2133,2146] [2022-11-02 21:00:30,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:00:30,684 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:00:30,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30 WrapperNode [2022-11-02 21:00:30,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:00:30,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:00:30,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:00:30,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:00:30,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30" (1/1) ... [2022-11-02 21:00:30,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30" (1/1) ... [2022-11-02 21:00:30,752 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 148 [2022-11-02 21:00:30,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:00:30,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:00:30,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:00:30,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:00:30,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30" (1/1) ... [2022-11-02 21:00:30,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30" (1/1) ... [2022-11-02 21:00:30,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30" (1/1) ... [2022-11-02 21:00:30,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30" (1/1) ... [2022-11-02 21:00:30,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30" (1/1) ... [2022-11-02 21:00:30,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30" (1/1) ... [2022-11-02 21:00:30,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30" (1/1) ... [2022-11-02 21:00:30,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30" (1/1) ... [2022-11-02 21:00:30,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:00:30,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:00:30,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:00:30,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:00:30,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30" (1/1) ... [2022-11-02 21:00:30,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:00:30,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:00:30,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:00:30,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:00:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:00:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 21:00:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 21:00:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 21:00:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 21:00:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:00:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:00:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:00:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:00:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:00:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:00:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:00:30,877 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:00:30,974 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:00:30,975 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:00:31,439 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:00:31,451 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:00:31,457 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 21:00:31,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:31 BoogieIcfgContainer [2022-11-02 21:00:31,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:00:31,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:00:31,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:00:31,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:00:31,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:00:30" (1/3) ... [2022-11-02 21:00:31,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42649305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:00:31, skipping insertion in model container [2022-11-02 21:00:31,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:30" (2/3) ... [2022-11-02 21:00:31,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42649305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:00:31, skipping insertion in model container [2022-11-02 21:00:31,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:31" (3/3) ... [2022-11-02 21:00:31,471 INFO L112 eAbstractionObserver]: Analyzing ICFG clever.wvr.c [2022-11-02 21:00:31,480 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:00:31,491 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:00:31,491 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2022-11-02 21:00:31,491 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:00:31,638 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 21:00:31,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 278 transitions, 572 flow [2022-11-02 21:00:31,866 INFO L130 PetriNetUnfolder]: 12/276 cut-off events. [2022-11-02 21:00:31,866 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 21:00:31,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 276 events. 12/276 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 432 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2022-11-02 21:00:31,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 273 places, 278 transitions, 572 flow [2022-11-02 21:00:31,883 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 258 transitions, 528 flow [2022-11-02 21:00:31,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:00:31,903 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;@56809ade, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:00:31,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2022-11-02 21:00:31,921 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-11-02 21:00:31,921 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:31,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:31,922 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:31,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:31,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:31,931 INFO L85 PathProgramCache]: Analyzing trace with hash -884590302, now seen corresponding path program 1 times [2022-11-02 21:00:31,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:31,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353286983] [2022-11-02 21:00:31,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:31,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:32,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:32,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:32,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353286983] [2022-11-02 21:00:32,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353286983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:32,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:32,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:32,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126419841] [2022-11-02 21:00:32,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:32,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:32,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:32,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:32,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:32,285 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 278 [2022-11-02 21:00:32,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 258 transitions, 528 flow. Second operand has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 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) [2022-11-02 21:00:32,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:32,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 278 [2022-11-02 21:00:32,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:32,535 INFO L130 PetriNetUnfolder]: 29/500 cut-off events. [2022-11-02 21:00:32,535 INFO L131 PetriNetUnfolder]: For 20/37 co-relation queries the response was YES. [2022-11-02 21:00:32,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 500 events. 29/500 cut-off events. For 20/37 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2157 event pairs, 15 based on Foata normal form. 15/412 useless extension candidates. Maximal degree in co-relation 351. Up to 44 conditions per place. [2022-11-02 21:00:32,542 INFO L137 encePairwiseOnDemand]: 270/278 looper letters, 13 selfloop transitions, 2 changer transitions 2/252 dead transitions. [2022-11-02 21:00:32,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 252 transitions, 546 flow [2022-11-02 21:00:32,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:32,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:32,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 786 transitions. [2022-11-02 21:00:32,567 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9424460431654677 [2022-11-02 21:00:32,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 786 transitions. [2022-11-02 21:00:32,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 786 transitions. [2022-11-02 21:00:32,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:32,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 786 transitions. [2022-11-02 21:00:32,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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) [2022-11-02 21:00:32,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:32,597 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:32,599 INFO L175 Difference]: Start difference. First operand has 254 places, 258 transitions, 528 flow. Second operand 3 states and 786 transitions. [2022-11-02 21:00:32,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 252 transitions, 546 flow [2022-11-02 21:00:32,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 252 transitions, 538 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:00:32,617 INFO L231 Difference]: Finished difference. Result has 251 places, 250 transitions, 508 flow [2022-11-02 21:00:32,620 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=251, PETRI_TRANSITIONS=250} [2022-11-02 21:00:32,625 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -3 predicate places. [2022-11-02 21:00:32,625 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 250 transitions, 508 flow [2022-11-02 21:00:32,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 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) [2022-11-02 21:00:32,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:32,626 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:32,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:00:32,627 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:32,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:32,629 INFO L85 PathProgramCache]: Analyzing trace with hash -797834522, now seen corresponding path program 1 times [2022-11-02 21:00:32,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:32,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791848014] [2022-11-02 21:00:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:32,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:32,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:32,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:32,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791848014] [2022-11-02 21:00:32,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791848014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:32,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:32,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:32,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718308664] [2022-11-02 21:00:32,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:32,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:32,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:32,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:32,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:32,766 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 278 [2022-11-02 21:00:32,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 250 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 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) [2022-11-02 21:00:32,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:32,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 278 [2022-11-02 21:00:32,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:32,885 INFO L130 PetriNetUnfolder]: 31/449 cut-off events. [2022-11-02 21:00:32,885 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 21:00:32,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 511 conditions, 449 events. 31/449 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1733 event pairs, 15 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 477. Up to 51 conditions per place. [2022-11-02 21:00:32,890 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 16 selfloop transitions, 2 changer transitions 0/249 dead transitions. [2022-11-02 21:00:32,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 249 transitions, 542 flow [2022-11-02 21:00:32,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:32,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:32,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 775 transitions. [2022-11-02 21:00:32,894 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9292565947242206 [2022-11-02 21:00:32,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 775 transitions. [2022-11-02 21:00:32,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 775 transitions. [2022-11-02 21:00:32,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:32,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 775 transitions. [2022-11-02 21:00:32,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 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) [2022-11-02 21:00:32,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:32,917 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:32,917 INFO L175 Difference]: Start difference. First operand has 251 places, 250 transitions, 508 flow. Second operand 3 states and 775 transitions. [2022-11-02 21:00:32,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 249 transitions, 542 flow [2022-11-02 21:00:32,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 249 transitions, 538 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:32,929 INFO L231 Difference]: Finished difference. Result has 248 places, 249 transitions, 506 flow [2022-11-02 21:00:32,929 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=506, PETRI_PLACES=248, PETRI_TRANSITIONS=249} [2022-11-02 21:00:32,931 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -6 predicate places. [2022-11-02 21:00:32,931 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 249 transitions, 506 flow [2022-11-02 21:00:32,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 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) [2022-11-02 21:00:32,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:32,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:32,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:00:32,933 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:32,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:32,933 INFO L85 PathProgramCache]: Analyzing trace with hash -967506996, now seen corresponding path program 1 times [2022-11-02 21:00:32,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:32,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780183857] [2022-11-02 21:00:32,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:32,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:33,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:33,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:33,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780183857] [2022-11-02 21:00:33,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780183857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:33,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:33,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:33,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641215712] [2022-11-02 21:00:33,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:33,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:33,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:33,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:33,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:33,010 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 278 [2022-11-02 21:00:33,011 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 249 transitions, 506 flow. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 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) [2022-11-02 21:00:33,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:33,012 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 278 [2022-11-02 21:00:33,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:33,124 INFO L130 PetriNetUnfolder]: 17/314 cut-off events. [2022-11-02 21:00:33,124 INFO L131 PetriNetUnfolder]: For 2/5 co-relation queries the response was YES. [2022-11-02 21:00:33,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 314 events. 17/314 cut-off events. For 2/5 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 852 event pairs, 9 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 337. Up to 47 conditions per place. [2022-11-02 21:00:33,127 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 28 selfloop transitions, 2 changer transitions 0/248 dead transitions. [2022-11-02 21:00:33,128 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 248 transitions, 564 flow [2022-11-02 21:00:33,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:33,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:33,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2022-11-02 21:00:33,130 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9004796163069544 [2022-11-02 21:00:33,130 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 751 transitions. [2022-11-02 21:00:33,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 751 transitions. [2022-11-02 21:00:33,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:33,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 751 transitions. [2022-11-02 21:00:33,133 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) [2022-11-02 21:00:33,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:33,136 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:33,136 INFO L175 Difference]: Start difference. First operand has 248 places, 249 transitions, 506 flow. Second operand 3 states and 751 transitions. [2022-11-02 21:00:33,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 248 transitions, 564 flow [2022-11-02 21:00:33,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 248 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:33,142 INFO L231 Difference]: Finished difference. Result has 247 places, 248 transitions, 504 flow [2022-11-02 21:00:33,142 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=247, PETRI_TRANSITIONS=248} [2022-11-02 21:00:33,143 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -7 predicate places. [2022-11-02 21:00:33,143 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 248 transitions, 504 flow [2022-11-02 21:00:33,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 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) [2022-11-02 21:00:33,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:33,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:33,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:00:33,145 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:33,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:33,145 INFO L85 PathProgramCache]: Analyzing trace with hash -86961476, now seen corresponding path program 1 times [2022-11-02 21:00:33,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:33,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384662819] [2022-11-02 21:00:33,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:33,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:33,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:33,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:33,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384662819] [2022-11-02 21:00:33,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384662819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:33,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:33,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:33,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776869004] [2022-11-02 21:00:33,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:33,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:33,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:33,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:33,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:33,210 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 278 [2022-11-02 21:00:33,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 248 transitions, 504 flow. Second operand has 3 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) [2022-11-02 21:00:33,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:33,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 278 [2022-11-02 21:00:33,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:33,297 INFO L130 PetriNetUnfolder]: 16/289 cut-off events. [2022-11-02 21:00:33,297 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-02 21:00:33,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 289 events. 16/289 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 796 event pairs, 9 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 287. Up to 38 conditions per place. [2022-11-02 21:00:33,301 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 19 selfloop transitions, 2 changer transitions 0/247 dead transitions. [2022-11-02 21:00:33,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 247 transitions, 544 flow [2022-11-02 21:00:33,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:33,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:33,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 769 transitions. [2022-11-02 21:00:33,304 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9220623501199041 [2022-11-02 21:00:33,304 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 769 transitions. [2022-11-02 21:00:33,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 769 transitions. [2022-11-02 21:00:33,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:33,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 769 transitions. [2022-11-02 21:00:33,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 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) [2022-11-02 21:00:33,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:33,314 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:33,314 INFO L175 Difference]: Start difference. First operand has 247 places, 248 transitions, 504 flow. Second operand 3 states and 769 transitions. [2022-11-02 21:00:33,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 247 transitions, 544 flow [2022-11-02 21:00:33,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 247 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:33,321 INFO L231 Difference]: Finished difference. Result has 246 places, 247 transitions, 502 flow [2022-11-02 21:00:33,331 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=246, PETRI_TRANSITIONS=247} [2022-11-02 21:00:33,332 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -8 predicate places. [2022-11-02 21:00:33,332 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 247 transitions, 502 flow [2022-11-02 21:00:33,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-11-02 21:00:33,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:33,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:33,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:00:33,334 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:33,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:33,335 INFO L85 PathProgramCache]: Analyzing trace with hash 173701630, now seen corresponding path program 1 times [2022-11-02 21:00:33,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:33,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404807934] [2022-11-02 21:00:33,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:33,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:33,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:33,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:33,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404807934] [2022-11-02 21:00:33,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404807934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:33,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:33,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:33,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692374894] [2022-11-02 21:00:33,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:33,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:33,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:33,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:33,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:33,386 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 278 [2022-11-02 21:00:33,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 247 transitions, 502 flow. Second operand has 3 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) [2022-11-02 21:00:33,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:33,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 278 [2022-11-02 21:00:33,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:33,470 INFO L130 PetriNetUnfolder]: 21/345 cut-off events. [2022-11-02 21:00:33,470 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 21:00:33,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 345 events. 21/345 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1103 event pairs, 12 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 354. Up to 44 conditions per place. [2022-11-02 21:00:33,474 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 19 selfloop transitions, 2 changer transitions 0/246 dead transitions. [2022-11-02 21:00:33,474 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 246 transitions, 542 flow [2022-11-02 21:00:33,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:33,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:33,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 769 transitions. [2022-11-02 21:00:33,477 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9220623501199041 [2022-11-02 21:00:33,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 769 transitions. [2022-11-02 21:00:33,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 769 transitions. [2022-11-02 21:00:33,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:33,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 769 transitions. [2022-11-02 21:00:33,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 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) [2022-11-02 21:00:33,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:33,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:33,484 INFO L175 Difference]: Start difference. First operand has 246 places, 247 transitions, 502 flow. Second operand 3 states and 769 transitions. [2022-11-02 21:00:33,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 246 transitions, 542 flow [2022-11-02 21:00:33,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 246 transitions, 538 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:33,489 INFO L231 Difference]: Finished difference. Result has 245 places, 246 transitions, 500 flow [2022-11-02 21:00:33,490 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=245, PETRI_TRANSITIONS=246} [2022-11-02 21:00:33,493 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -9 predicate places. [2022-11-02 21:00:33,493 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 246 transitions, 500 flow [2022-11-02 21:00:33,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-11-02 21:00:33,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:33,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:33,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:00:33,495 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:33,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:33,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1566432156, now seen corresponding path program 1 times [2022-11-02 21:00:33,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:33,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332143137] [2022-11-02 21:00:33,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:33,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:33,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:33,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332143137] [2022-11-02 21:00:33,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332143137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:33,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:33,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:33,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460569198] [2022-11-02 21:00:33,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:33,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:33,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:33,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:33,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:33,568 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 278 [2022-11-02 21:00:33,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 246 transitions, 500 flow. Second operand has 3 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) [2022-11-02 21:00:33,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:33,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 278 [2022-11-02 21:00:33,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:33,648 INFO L130 PetriNetUnfolder]: 15/335 cut-off events. [2022-11-02 21:00:33,649 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 21:00:33,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 335 events. 15/335 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 855 event pairs, 6 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 320. Up to 33 conditions per place. [2022-11-02 21:00:33,652 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 19 selfloop transitions, 2 changer transitions 0/245 dead transitions. [2022-11-02 21:00:33,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 245 transitions, 540 flow [2022-11-02 21:00:33,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:33,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:33,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 769 transitions. [2022-11-02 21:00:33,656 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9220623501199041 [2022-11-02 21:00:33,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 769 transitions. [2022-11-02 21:00:33,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 769 transitions. [2022-11-02 21:00:33,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:33,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 769 transitions. [2022-11-02 21:00:33,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 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) [2022-11-02 21:00:33,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:33,662 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:33,662 INFO L175 Difference]: Start difference. First operand has 245 places, 246 transitions, 500 flow. Second operand 3 states and 769 transitions. [2022-11-02 21:00:33,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 245 transitions, 540 flow [2022-11-02 21:00:33,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 245 transitions, 536 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:33,668 INFO L231 Difference]: Finished difference. Result has 244 places, 245 transitions, 498 flow [2022-11-02 21:00:33,668 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=244, PETRI_TRANSITIONS=245} [2022-11-02 21:00:33,669 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -10 predicate places. [2022-11-02 21:00:33,669 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 245 transitions, 498 flow [2022-11-02 21:00:33,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-11-02 21:00:33,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:33,671 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:33,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:00:33,671 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:33,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:33,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1272933465, now seen corresponding path program 1 times [2022-11-02 21:00:33,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:33,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161439616] [2022-11-02 21:00:33,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:33,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:33,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:33,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161439616] [2022-11-02 21:00:33,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161439616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:33,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:33,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:33,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427021185] [2022-11-02 21:00:33,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:33,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:33,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:33,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:33,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:33,741 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 278 [2022-11-02 21:00:33,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 245 transitions, 498 flow. Second operand has 3 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) [2022-11-02 21:00:33,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:33,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 278 [2022-11-02 21:00:33,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:33,809 INFO L130 PetriNetUnfolder]: 13/273 cut-off events. [2022-11-02 21:00:33,810 INFO L131 PetriNetUnfolder]: For 8/11 co-relation queries the response was YES. [2022-11-02 21:00:33,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 273 events. 13/273 cut-off events. For 8/11 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 656 event pairs, 6 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 244. Up to 31 conditions per place. [2022-11-02 21:00:33,812 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 18 selfloop transitions, 2 changer transitions 0/244 dead transitions. [2022-11-02 21:00:33,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 244 transitions, 536 flow [2022-11-02 21:00:33,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:33,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:33,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 768 transitions. [2022-11-02 21:00:33,815 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.920863309352518 [2022-11-02 21:00:33,815 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 768 transitions. [2022-11-02 21:00:33,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 768 transitions. [2022-11-02 21:00:33,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:33,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 768 transitions. [2022-11-02 21:00:33,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 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) [2022-11-02 21:00:33,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:33,821 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:33,821 INFO L175 Difference]: Start difference. First operand has 244 places, 245 transitions, 498 flow. Second operand 3 states and 768 transitions. [2022-11-02 21:00:33,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 244 transitions, 536 flow [2022-11-02 21:00:33,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 244 transitions, 532 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:33,827 INFO L231 Difference]: Finished difference. Result has 243 places, 244 transitions, 496 flow [2022-11-02 21:00:33,827 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=243, PETRI_TRANSITIONS=244} [2022-11-02 21:00:33,828 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -11 predicate places. [2022-11-02 21:00:33,828 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 244 transitions, 496 flow [2022-11-02 21:00:33,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-11-02 21:00:33,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:33,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:33,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:00:33,830 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:33,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:33,830 INFO L85 PathProgramCache]: Analyzing trace with hash -978003185, now seen corresponding path program 1 times [2022-11-02 21:00:33,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:33,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448471742] [2022-11-02 21:00:33,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:33,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:33,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:33,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:33,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448471742] [2022-11-02 21:00:33,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448471742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:33,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:33,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:33,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652024181] [2022-11-02 21:00:33,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:33,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:33,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:33,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:33,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:33,874 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 278 [2022-11-02 21:00:33,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 244 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 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) [2022-11-02 21:00:33,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:33,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 278 [2022-11-02 21:00:33,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:33,952 INFO L130 PetriNetUnfolder]: 15/302 cut-off events. [2022-11-02 21:00:33,952 INFO L131 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-11-02 21:00:33,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 302 events. 15/302 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 784 event pairs, 4 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 278. Up to 26 conditions per place. [2022-11-02 21:00:33,955 INFO L137 encePairwiseOnDemand]: 269/278 looper letters, 20 selfloop transitions, 3 changer transitions 0/240 dead transitions. [2022-11-02 21:00:33,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 240 transitions, 535 flow [2022-11-02 21:00:33,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:33,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:33,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 758 transitions. [2022-11-02 21:00:33,958 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9088729016786571 [2022-11-02 21:00:33,958 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 758 transitions. [2022-11-02 21:00:33,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 758 transitions. [2022-11-02 21:00:33,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:33,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 758 transitions. [2022-11-02 21:00:33,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 252.66666666666666) internal successors, (758), 3 states have internal predecessors, (758), 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) [2022-11-02 21:00:33,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:33,963 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:33,964 INFO L175 Difference]: Start difference. First operand has 243 places, 244 transitions, 496 flow. Second operand 3 states and 758 transitions. [2022-11-02 21:00:33,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 240 transitions, 535 flow [2022-11-02 21:00:33,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 240 transitions, 531 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:33,969 INFO L231 Difference]: Finished difference. Result has 238 places, 239 transitions, 493 flow [2022-11-02 21:00:33,970 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=238, PETRI_TRANSITIONS=239} [2022-11-02 21:00:33,971 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -16 predicate places. [2022-11-02 21:00:33,971 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 239 transitions, 493 flow [2022-11-02 21:00:33,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 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) [2022-11-02 21:00:33,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:33,972 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:33,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:00:33,972 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:33,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:33,973 INFO L85 PathProgramCache]: Analyzing trace with hash 736792694, now seen corresponding path program 1 times [2022-11-02 21:00:33,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:33,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882136103] [2022-11-02 21:00:33,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:33,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:34,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:34,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:34,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882136103] [2022-11-02 21:00:34,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882136103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:34,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:34,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:34,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293288262] [2022-11-02 21:00:34,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:34,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:34,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:34,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:34,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:34,023 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 278 [2022-11-02 21:00:34,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 239 transitions, 493 flow. Second operand has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 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) [2022-11-02 21:00:34,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:34,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 278 [2022-11-02 21:00:34,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:34,091 INFO L130 PetriNetUnfolder]: 14/276 cut-off events. [2022-11-02 21:00:34,091 INFO L131 PetriNetUnfolder]: For 10/12 co-relation queries the response was YES. [2022-11-02 21:00:34,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 276 events. 14/276 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 678 event pairs, 4 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 233. Up to 20 conditions per place. [2022-11-02 21:00:34,094 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 14 selfloop transitions, 3 changer transitions 0/238 dead transitions. [2022-11-02 21:00:34,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 238 transitions, 526 flow [2022-11-02 21:00:34,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:34,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:34,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 776 transitions. [2022-11-02 21:00:34,097 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9304556354916067 [2022-11-02 21:00:34,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 776 transitions. [2022-11-02 21:00:34,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 776 transitions. [2022-11-02 21:00:34,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:34,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 776 transitions. [2022-11-02 21:00:34,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 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) [2022-11-02 21:00:34,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:34,102 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:34,102 INFO L175 Difference]: Start difference. First operand has 238 places, 239 transitions, 493 flow. Second operand 3 states and 776 transitions. [2022-11-02 21:00:34,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 238 transitions, 526 flow [2022-11-02 21:00:34,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 238 transitions, 523 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:00:34,108 INFO L231 Difference]: Finished difference. Result has 237 places, 237 transitions, 497 flow [2022-11-02 21:00:34,108 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=497, PETRI_PLACES=237, PETRI_TRANSITIONS=237} [2022-11-02 21:00:34,109 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -17 predicate places. [2022-11-02 21:00:34,109 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 237 transitions, 497 flow [2022-11-02 21:00:34,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 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) [2022-11-02 21:00:34,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:34,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:34,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:00:34,110 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:34,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:34,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1186675310, now seen corresponding path program 1 times [2022-11-02 21:00:34,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:34,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114505181] [2022-11-02 21:00:34,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:34,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:34,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:34,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:34,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114505181] [2022-11-02 21:00:34,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114505181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:34,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:34,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:34,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093566776] [2022-11-02 21:00:34,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:34,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:34,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:34,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:34,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:34,154 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 278 [2022-11-02 21:00:34,155 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 237 transitions, 497 flow. Second operand has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 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) [2022-11-02 21:00:34,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:34,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 278 [2022-11-02 21:00:34,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:34,255 INFO L130 PetriNetUnfolder]: 21/468 cut-off events. [2022-11-02 21:00:34,255 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-02 21:00:34,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 468 events. 21/468 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1549 event pairs, 3 based on Foata normal form. 0/407 useless extension candidates. Maximal degree in co-relation 431. Up to 18 conditions per place. [2022-11-02 21:00:34,260 INFO L137 encePairwiseOnDemand]: 271/278 looper letters, 17 selfloop transitions, 4 changer transitions 0/240 dead transitions. [2022-11-02 21:00:34,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 240 transitions, 549 flow [2022-11-02 21:00:34,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:34,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 780 transitions. [2022-11-02 21:00:34,263 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.935251798561151 [2022-11-02 21:00:34,263 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 780 transitions. [2022-11-02 21:00:34,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 780 transitions. [2022-11-02 21:00:34,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:34,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 780 transitions. [2022-11-02 21:00:34,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 260.0) internal successors, (780), 3 states have internal predecessors, (780), 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) [2022-11-02 21:00:34,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:34,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:34,268 INFO L175 Difference]: Start difference. First operand has 237 places, 237 transitions, 497 flow. Second operand 3 states and 780 transitions. [2022-11-02 21:00:34,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 240 transitions, 549 flow [2022-11-02 21:00:34,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 240 transitions, 546 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:00:34,274 INFO L231 Difference]: Finished difference. Result has 236 places, 236 transitions, 508 flow [2022-11-02 21:00:34,275 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=236, PETRI_TRANSITIONS=236} [2022-11-02 21:00:34,275 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -18 predicate places. [2022-11-02 21:00:34,276 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 236 transitions, 508 flow [2022-11-02 21:00:34,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 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) [2022-11-02 21:00:34,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:34,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:34,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:00:34,277 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:34,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:34,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1395414226, now seen corresponding path program 1 times [2022-11-02 21:00:34,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:34,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181652741] [2022-11-02 21:00:34,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:34,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:34,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:34,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181652741] [2022-11-02 21:00:34,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181652741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:34,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:34,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:34,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118184978] [2022-11-02 21:00:34,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:34,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:34,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:34,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:34,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:34,319 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 278 [2022-11-02 21:00:34,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 236 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 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) [2022-11-02 21:00:34,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:34,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 278 [2022-11-02 21:00:34,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:34,466 INFO L130 PetriNetUnfolder]: 35/658 cut-off events. [2022-11-02 21:00:34,466 INFO L131 PetriNetUnfolder]: For 22/26 co-relation queries the response was YES. [2022-11-02 21:00:34,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 775 conditions, 658 events. 35/658 cut-off events. For 22/26 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3298 event pairs, 6 based on Foata normal form. 3/582 useless extension candidates. Maximal degree in co-relation 459. Up to 32 conditions per place. [2022-11-02 21:00:34,472 INFO L137 encePairwiseOnDemand]: 271/278 looper letters, 13 selfloop transitions, 3 changer transitions 8/239 dead transitions. [2022-11-02 21:00:34,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 239 transitions, 558 flow [2022-11-02 21:00:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:34,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:34,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 779 transitions. [2022-11-02 21:00:34,475 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.934052757793765 [2022-11-02 21:00:34,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 779 transitions. [2022-11-02 21:00:34,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 779 transitions. [2022-11-02 21:00:34,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:34,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 779 transitions. [2022-11-02 21:00:34,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 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) [2022-11-02 21:00:34,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:34,480 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:34,480 INFO L175 Difference]: Start difference. First operand has 236 places, 236 transitions, 508 flow. Second operand 3 states and 779 transitions. [2022-11-02 21:00:34,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 239 transitions, 558 flow [2022-11-02 21:00:34,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 239 transitions, 554 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:00:34,486 INFO L231 Difference]: Finished difference. Result has 235 places, 228 transitions, 494 flow [2022-11-02 21:00:34,486 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=235, PETRI_TRANSITIONS=228} [2022-11-02 21:00:34,487 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -19 predicate places. [2022-11-02 21:00:34,488 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 228 transitions, 494 flow [2022-11-02 21:00:34,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 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) [2022-11-02 21:00:34,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:34,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:34,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:00:34,489 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:34,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:34,491 INFO L85 PathProgramCache]: Analyzing trace with hash -241940978, now seen corresponding path program 1 times [2022-11-02 21:00:34,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:34,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634833442] [2022-11-02 21:00:34,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:34,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:34,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:34,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:34,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634833442] [2022-11-02 21:00:34,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634833442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:34,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:34,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:34,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695363783] [2022-11-02 21:00:34,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:34,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:34,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:34,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:34,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:34,555 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 278 [2022-11-02 21:00:34,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 228 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 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) [2022-11-02 21:00:34,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:34,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 278 [2022-11-02 21:00:34,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:34,758 INFO L130 PetriNetUnfolder]: 66/1082 cut-off events. [2022-11-02 21:00:34,758 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-11-02 21:00:34,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1296 conditions, 1082 events. 66/1082 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6897 event pairs, 20 based on Foata normal form. 0/938 useless extension candidates. Maximal degree in co-relation 734. Up to 92 conditions per place. [2022-11-02 21:00:34,769 INFO L137 encePairwiseOnDemand]: 274/278 looper letters, 10 selfloop transitions, 1 changer transitions 0/225 dead transitions. [2022-11-02 21:00:34,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 225 transitions, 510 flow [2022-11-02 21:00:34,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:34,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:34,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 779 transitions. [2022-11-02 21:00:34,772 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.934052757793765 [2022-11-02 21:00:34,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 779 transitions. [2022-11-02 21:00:34,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 779 transitions. [2022-11-02 21:00:34,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:34,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 779 transitions. [2022-11-02 21:00:34,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 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) [2022-11-02 21:00:34,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:34,777 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:34,777 INFO L175 Difference]: Start difference. First operand has 235 places, 228 transitions, 494 flow. Second operand 3 states and 779 transitions. [2022-11-02 21:00:34,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 225 transitions, 510 flow [2022-11-02 21:00:34,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 225 transitions, 507 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:00:34,783 INFO L231 Difference]: Finished difference. Result has 228 places, 225 transitions, 487 flow [2022-11-02 21:00:34,784 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=487, PETRI_PLACES=228, PETRI_TRANSITIONS=225} [2022-11-02 21:00:34,786 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -26 predicate places. [2022-11-02 21:00:34,786 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 225 transitions, 487 flow [2022-11-02 21:00:34,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 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) [2022-11-02 21:00:34,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:34,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:34,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:00:34,787 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:34,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:34,788 INFO L85 PathProgramCache]: Analyzing trace with hash 142206270, now seen corresponding path program 1 times [2022-11-02 21:00:34,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:34,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461070133] [2022-11-02 21:00:34,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:34,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:34,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:34,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461070133] [2022-11-02 21:00:34,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461070133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:34,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:34,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:34,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943497950] [2022-11-02 21:00:34,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:34,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:34,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:34,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:34,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:34,846 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 278 [2022-11-02 21:00:34,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 225 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 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) [2022-11-02 21:00:34,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:34,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 278 [2022-11-02 21:00:34,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:35,033 INFO L130 PetriNetUnfolder]: 80/1180 cut-off events. [2022-11-02 21:00:35,034 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-02 21:00:35,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1420 conditions, 1180 events. 80/1180 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8377 event pairs, 16 based on Foata normal form. 4/1043 useless extension candidates. Maximal degree in co-relation 688. Up to 108 conditions per place. [2022-11-02 21:00:35,043 INFO L137 encePairwiseOnDemand]: 274/278 looper letters, 10 selfloop transitions, 2 changer transitions 0/226 dead transitions. [2022-11-02 21:00:35,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 226 transitions, 514 flow [2022-11-02 21:00:35,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:35,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:35,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2022-11-02 21:00:35,046 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9448441247002398 [2022-11-02 21:00:35,046 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 788 transitions. [2022-11-02 21:00:35,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 788 transitions. [2022-11-02 21:00:35,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:35,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 788 transitions. [2022-11-02 21:00:35,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 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) [2022-11-02 21:00:35,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:35,052 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:35,052 INFO L175 Difference]: Start difference. First operand has 228 places, 225 transitions, 487 flow. Second operand 3 states and 788 transitions. [2022-11-02 21:00:35,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 226 transitions, 514 flow [2022-11-02 21:00:35,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 226 transitions, 513 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:00:35,061 INFO L231 Difference]: Finished difference. Result has 228 places, 225 transitions, 496 flow [2022-11-02 21:00:35,061 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=228, PETRI_TRANSITIONS=225} [2022-11-02 21:00:35,063 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -26 predicate places. [2022-11-02 21:00:35,063 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 225 transitions, 496 flow [2022-11-02 21:00:35,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 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) [2022-11-02 21:00:35,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:35,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:35,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:00:35,065 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:35,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:35,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1353891960, now seen corresponding path program 1 times [2022-11-02 21:00:35,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:35,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375658095] [2022-11-02 21:00:35,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:35,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:35,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:35,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375658095] [2022-11-02 21:00:35,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375658095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:35,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:35,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:35,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772871329] [2022-11-02 21:00:35,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:35,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:35,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:35,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:35,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:35,123 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 278 [2022-11-02 21:00:35,124 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 225 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 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) [2022-11-02 21:00:35,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:35,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 278 [2022-11-02 21:00:35,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:35,308 INFO L130 PetriNetUnfolder]: 88/964 cut-off events. [2022-11-02 21:00:35,309 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-02 21:00:35,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1288 conditions, 964 events. 88/964 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6323 event pairs, 32 based on Foata normal form. 0/873 useless extension candidates. Maximal degree in co-relation 896. Up to 119 conditions per place. [2022-11-02 21:00:35,317 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 17 selfloop transitions, 2 changer transitions 0/225 dead transitions. [2022-11-02 21:00:35,317 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 225 transitions, 535 flow [2022-11-02 21:00:35,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:35,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:35,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 770 transitions. [2022-11-02 21:00:35,320 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9232613908872902 [2022-11-02 21:00:35,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 770 transitions. [2022-11-02 21:00:35,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 770 transitions. [2022-11-02 21:00:35,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:35,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 770 transitions. [2022-11-02 21:00:35,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 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) [2022-11-02 21:00:35,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:35,342 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:35,343 INFO L175 Difference]: Start difference. First operand has 228 places, 225 transitions, 496 flow. Second operand 3 states and 770 transitions. [2022-11-02 21:00:35,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 225 transitions, 535 flow [2022-11-02 21:00:35,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 225 transitions, 535 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:00:35,349 INFO L231 Difference]: Finished difference. Result has 229 places, 224 transitions, 498 flow [2022-11-02 21:00:35,349 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=229, PETRI_TRANSITIONS=224} [2022-11-02 21:00:35,350 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -25 predicate places. [2022-11-02 21:00:35,351 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 224 transitions, 498 flow [2022-11-02 21:00:35,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 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) [2022-11-02 21:00:35,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:35,353 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:35,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 21:00:35,353 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:35,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:35,354 INFO L85 PathProgramCache]: Analyzing trace with hash 243140868, now seen corresponding path program 1 times [2022-11-02 21:00:35,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:35,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837323824] [2022-11-02 21:00:35,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:35,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:35,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:35,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:35,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837323824] [2022-11-02 21:00:35,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837323824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:35,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:35,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:35,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147255642] [2022-11-02 21:00:35,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:35,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:35,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:35,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:35,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:35,414 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 278 [2022-11-02 21:00:35,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 224 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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) [2022-11-02 21:00:35,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:35,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 278 [2022-11-02 21:00:35,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:35,610 INFO L130 PetriNetUnfolder]: 70/1070 cut-off events. [2022-11-02 21:00:35,610 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-11-02 21:00:35,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1379 conditions, 1070 events. 70/1070 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6873 event pairs, 18 based on Foata normal form. 0/971 useless extension candidates. Maximal degree in co-relation 906. Up to 65 conditions per place. [2022-11-02 21:00:35,621 INFO L137 encePairwiseOnDemand]: 273/278 looper letters, 14 selfloop transitions, 3 changer transitions 0/225 dead transitions. [2022-11-02 21:00:35,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 225 transitions, 538 flow [2022-11-02 21:00:35,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:35,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:35,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 775 transitions. [2022-11-02 21:00:35,624 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9292565947242206 [2022-11-02 21:00:35,624 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 775 transitions. [2022-11-02 21:00:35,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 775 transitions. [2022-11-02 21:00:35,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:35,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 775 transitions. [2022-11-02 21:00:35,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 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) [2022-11-02 21:00:35,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:35,629 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:35,629 INFO L175 Difference]: Start difference. First operand has 229 places, 224 transitions, 498 flow. Second operand 3 states and 775 transitions. [2022-11-02 21:00:35,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 225 transitions, 538 flow [2022-11-02 21:00:35,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 225 transitions, 532 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:35,661 INFO L231 Difference]: Finished difference. Result has 228 places, 223 transitions, 503 flow [2022-11-02 21:00:35,661 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=503, PETRI_PLACES=228, PETRI_TRANSITIONS=223} [2022-11-02 21:00:35,662 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -26 predicate places. [2022-11-02 21:00:35,662 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 223 transitions, 503 flow [2022-11-02 21:00:35,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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) [2022-11-02 21:00:35,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:35,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:35,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:00:35,663 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:35,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:35,663 INFO L85 PathProgramCache]: Analyzing trace with hash 711527101, now seen corresponding path program 1 times [2022-11-02 21:00:35,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:35,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285656903] [2022-11-02 21:00:35,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:35,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:36,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:36,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:36,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285656903] [2022-11-02 21:00:36,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285656903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:36,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:36,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:00:36,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740486259] [2022-11-02 21:00:36,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:36,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:00:36,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:36,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:00:36,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:00:36,210 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 278 [2022-11-02 21:00:36,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 223 transitions, 503 flow. Second operand has 6 states, 6 states have (on average 250.83333333333334) internal successors, (1505), 6 states have internal predecessors, (1505), 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) [2022-11-02 21:00:36,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:36,213 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 278 [2022-11-02 21:00:36,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:36,373 INFO L130 PetriNetUnfolder]: 32/766 cut-off events. [2022-11-02 21:00:36,373 INFO L131 PetriNetUnfolder]: For 8/36 co-relation queries the response was YES. [2022-11-02 21:00:36,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 766 events. 32/766 cut-off events. For 8/36 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3909 event pairs, 4 based on Foata normal form. 16/719 useless extension candidates. Maximal degree in co-relation 647. Up to 64 conditions per place. [2022-11-02 21:00:36,380 INFO L137 encePairwiseOnDemand]: 273/278 looper letters, 14 selfloop transitions, 4 changer transitions 0/222 dead transitions. [2022-11-02 21:00:36,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 222 transitions, 537 flow [2022-11-02 21:00:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:00:36,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:00:36,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1513 transitions. [2022-11-02 21:00:36,384 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.907074340527578 [2022-11-02 21:00:36,384 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1513 transitions. [2022-11-02 21:00:36,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1513 transitions. [2022-11-02 21:00:36,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:36,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1513 transitions. [2022-11-02 21:00:36,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 252.16666666666666) internal successors, (1513), 6 states have internal predecessors, (1513), 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) [2022-11-02 21:00:36,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 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) [2022-11-02 21:00:36,391 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 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) [2022-11-02 21:00:36,392 INFO L175 Difference]: Start difference. First operand has 228 places, 223 transitions, 503 flow. Second operand 6 states and 1513 transitions. [2022-11-02 21:00:36,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 222 transitions, 537 flow [2022-11-02 21:00:36,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 222 transitions, 534 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:00:36,398 INFO L231 Difference]: Finished difference. Result has 231 places, 222 transitions, 506 flow [2022-11-02 21:00:36,399 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=506, PETRI_PLACES=231, PETRI_TRANSITIONS=222} [2022-11-02 21:00:36,399 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -23 predicate places. [2022-11-02 21:00:36,400 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 222 transitions, 506 flow [2022-11-02 21:00:36,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.83333333333334) internal successors, (1505), 6 states have internal predecessors, (1505), 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) [2022-11-02 21:00:36,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:36,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:36,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 21:00:36,401 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:36,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:36,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1049546745, now seen corresponding path program 1 times [2022-11-02 21:00:36,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:36,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366468274] [2022-11-02 21:00:36,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:36,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:36,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:36,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:36,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366468274] [2022-11-02 21:00:36,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366468274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:36,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:36,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:36,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390884875] [2022-11-02 21:00:36,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:36,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:36,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:36,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:36,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:36,461 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 278 [2022-11-02 21:00:36,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 222 transitions, 506 flow. Second operand has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 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) [2022-11-02 21:00:36,462 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:36,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 278 [2022-11-02 21:00:36,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:36,611 INFO L130 PetriNetUnfolder]: 64/900 cut-off events. [2022-11-02 21:00:36,611 INFO L131 PetriNetUnfolder]: For 58/66 co-relation queries the response was YES. [2022-11-02 21:00:36,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 900 events. 64/900 cut-off events. For 58/66 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5012 event pairs, 20 based on Foata normal form. 0/835 useless extension candidates. Maximal degree in co-relation 849. Up to 93 conditions per place. [2022-11-02 21:00:36,619 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 13 selfloop transitions, 2 changer transitions 0/222 dead transitions. [2022-11-02 21:00:36,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 222 transitions, 537 flow [2022-11-02 21:00:36,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:36,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:36,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2022-11-02 21:00:36,621 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9172661870503597 [2022-11-02 21:00:36,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 765 transitions. [2022-11-02 21:00:36,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 765 transitions. [2022-11-02 21:00:36,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:36,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 765 transitions. [2022-11-02 21:00:36,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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) [2022-11-02 21:00:36,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:36,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:36,626 INFO L175 Difference]: Start difference. First operand has 231 places, 222 transitions, 506 flow. Second operand 3 states and 765 transitions. [2022-11-02 21:00:36,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 222 transitions, 537 flow [2022-11-02 21:00:36,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 222 transitions, 530 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:00:36,631 INFO L231 Difference]: Finished difference. Result has 228 places, 221 transitions, 501 flow [2022-11-02 21:00:36,631 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=501, PETRI_PLACES=228, PETRI_TRANSITIONS=221} [2022-11-02 21:00:36,632 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -26 predicate places. [2022-11-02 21:00:36,632 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 221 transitions, 501 flow [2022-11-02 21:00:36,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 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) [2022-11-02 21:00:36,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:36,633 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:36,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 21:00:36,633 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:36,634 INFO L85 PathProgramCache]: Analyzing trace with hash 144637328, now seen corresponding path program 1 times [2022-11-02 21:00:36,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:36,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892842019] [2022-11-02 21:00:36,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:36,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:36,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:36,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:36,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892842019] [2022-11-02 21:00:36,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892842019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:36,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:36,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:36,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120747154] [2022-11-02 21:00:36,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:36,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:36,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:36,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:36,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:36,677 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 278 [2022-11-02 21:00:36,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 221 transitions, 501 flow. Second operand has 3 states, 3 states have (on average 252.66666666666666) internal successors, (758), 3 states have internal predecessors, (758), 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) [2022-11-02 21:00:36,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:36,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 278 [2022-11-02 21:00:36,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:36,860 INFO L130 PetriNetUnfolder]: 58/929 cut-off events. [2022-11-02 21:00:36,860 INFO L131 PetriNetUnfolder]: For 28/32 co-relation queries the response was YES. [2022-11-02 21:00:36,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1192 conditions, 929 events. 58/929 cut-off events. For 28/32 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5192 event pairs, 12 based on Foata normal form. 0/857 useless extension candidates. Maximal degree in co-relation 1032. Up to 53 conditions per place. [2022-11-02 21:00:36,868 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 13 selfloop transitions, 2 changer transitions 0/221 dead transitions. [2022-11-02 21:00:36,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 221 transitions, 532 flow [2022-11-02 21:00:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:36,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:36,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2022-11-02 21:00:36,871 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9172661870503597 [2022-11-02 21:00:36,871 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 765 transitions. [2022-11-02 21:00:36,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 765 transitions. [2022-11-02 21:00:36,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:36,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 765 transitions. [2022-11-02 21:00:36,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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) [2022-11-02 21:00:36,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:36,877 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:36,877 INFO L175 Difference]: Start difference. First operand has 228 places, 221 transitions, 501 flow. Second operand 3 states and 765 transitions. [2022-11-02 21:00:36,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 221 transitions, 532 flow [2022-11-02 21:00:36,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 221 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:36,883 INFO L231 Difference]: Finished difference. Result has 227 places, 220 transitions, 499 flow [2022-11-02 21:00:36,885 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=499, PETRI_PLACES=227, PETRI_TRANSITIONS=220} [2022-11-02 21:00:36,885 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -27 predicate places. [2022-11-02 21:00:36,885 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 220 transitions, 499 flow [2022-11-02 21:00:36,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.66666666666666) internal successors, (758), 3 states have internal predecessors, (758), 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) [2022-11-02 21:00:36,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:36,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:36,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 21:00:36,887 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:36,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:36,887 INFO L85 PathProgramCache]: Analyzing trace with hash 2116811849, now seen corresponding path program 1 times [2022-11-02 21:00:36,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:36,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360990164] [2022-11-02 21:00:36,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:36,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:36,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:36,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:36,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360990164] [2022-11-02 21:00:36,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360990164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:36,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:36,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:36,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376170174] [2022-11-02 21:00:36,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:36,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:36,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:36,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:36,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:36,947 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 278 [2022-11-02 21:00:36,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 220 transitions, 499 flow. Second operand has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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) [2022-11-02 21:00:36,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:36,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 278 [2022-11-02 21:00:36,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:37,128 INFO L130 PetriNetUnfolder]: 80/990 cut-off events. [2022-11-02 21:00:37,128 INFO L131 PetriNetUnfolder]: For 17/25 co-relation queries the response was YES. [2022-11-02 21:00:37,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1374 conditions, 990 events. 80/990 cut-off events. For 17/25 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5981 event pairs, 36 based on Foata normal form. 0/917 useless extension candidates. Maximal degree in co-relation 1293. Up to 131 conditions per place. [2022-11-02 21:00:37,137 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 21 selfloop transitions, 2 changer transitions 0/220 dead transitions. [2022-11-02 21:00:37,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 220 transitions, 546 flow [2022-11-02 21:00:37,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:37,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:37,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 746 transitions. [2022-11-02 21:00:37,140 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.894484412470024 [2022-11-02 21:00:37,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 746 transitions. [2022-11-02 21:00:37,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 746 transitions. [2022-11-02 21:00:37,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:37,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 746 transitions. [2022-11-02 21:00:37,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 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) [2022-11-02 21:00:37,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:37,145 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:37,145 INFO L175 Difference]: Start difference. First operand has 227 places, 220 transitions, 499 flow. Second operand 3 states and 746 transitions. [2022-11-02 21:00:37,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 220 transitions, 546 flow [2022-11-02 21:00:37,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 220 transitions, 542 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:37,150 INFO L231 Difference]: Finished difference. Result has 226 places, 219 transitions, 497 flow [2022-11-02 21:00:37,151 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=497, PETRI_PLACES=226, PETRI_TRANSITIONS=219} [2022-11-02 21:00:37,151 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -28 predicate places. [2022-11-02 21:00:37,151 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 219 transitions, 497 flow [2022-11-02 21:00:37,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 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) [2022-11-02 21:00:37,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:37,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:37,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 21:00:37,152 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:37,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:37,153 INFO L85 PathProgramCache]: Analyzing trace with hash -968307618, now seen corresponding path program 1 times [2022-11-02 21:00:37,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:37,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890052186] [2022-11-02 21:00:37,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:37,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:37,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:37,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:37,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890052186] [2022-11-02 21:00:37,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890052186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:37,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:37,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:37,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192033108] [2022-11-02 21:00:37,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:37,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:37,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:37,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:37,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:37,223 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 278 [2022-11-02 21:00:37,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 219 transitions, 497 flow. Second operand has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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) [2022-11-02 21:00:37,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:37,224 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 278 [2022-11-02 21:00:37,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:37,385 INFO L130 PetriNetUnfolder]: 88/940 cut-off events. [2022-11-02 21:00:37,385 INFO L131 PetriNetUnfolder]: For 69/73 co-relation queries the response was YES. [2022-11-02 21:00:37,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1290 conditions, 940 events. 88/940 cut-off events. For 69/73 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5629 event pairs, 36 based on Foata normal form. 0/871 useless extension candidates. Maximal degree in co-relation 889. Up to 141 conditions per place. [2022-11-02 21:00:37,393 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 15 selfloop transitions, 2 changer transitions 0/219 dead transitions. [2022-11-02 21:00:37,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 219 transitions, 532 flow [2022-11-02 21:00:37,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:37,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:37,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 767 transitions. [2022-11-02 21:00:37,395 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.919664268585132 [2022-11-02 21:00:37,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 767 transitions. [2022-11-02 21:00:37,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 767 transitions. [2022-11-02 21:00:37,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:37,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 767 transitions. [2022-11-02 21:00:37,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.66666666666666) internal successors, (767), 3 states have internal predecessors, (767), 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) [2022-11-02 21:00:37,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:37,400 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:37,400 INFO L175 Difference]: Start difference. First operand has 226 places, 219 transitions, 497 flow. Second operand 3 states and 767 transitions. [2022-11-02 21:00:37,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 219 transitions, 532 flow [2022-11-02 21:00:37,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 219 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:37,405 INFO L231 Difference]: Finished difference. Result has 225 places, 218 transitions, 495 flow [2022-11-02 21:00:37,406 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=495, PETRI_PLACES=225, PETRI_TRANSITIONS=218} [2022-11-02 21:00:37,406 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -29 predicate places. [2022-11-02 21:00:37,406 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 218 transitions, 495 flow [2022-11-02 21:00:37,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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) [2022-11-02 21:00:37,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:37,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:37,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 21:00:37,407 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:37,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:37,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1259151825, now seen corresponding path program 1 times [2022-11-02 21:00:37,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:37,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470483856] [2022-11-02 21:00:37,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:37,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:37,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:37,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:37,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470483856] [2022-11-02 21:00:37,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470483856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:37,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:37,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:00:37,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079485429] [2022-11-02 21:00:37,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:37,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:00:37,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:37,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:00:37,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:00:37,943 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 278 [2022-11-02 21:00:37,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 218 transitions, 495 flow. Second operand has 6 states, 6 states have (on average 251.83333333333334) internal successors, (1511), 6 states have internal predecessors, (1511), 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) [2022-11-02 21:00:37,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:37,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 278 [2022-11-02 21:00:37,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:38,102 INFO L130 PetriNetUnfolder]: 32/740 cut-off events. [2022-11-02 21:00:38,102 INFO L131 PetriNetUnfolder]: For 10/38 co-relation queries the response was YES. [2022-11-02 21:00:38,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 740 events. 32/740 cut-off events. For 10/38 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3693 event pairs, 4 based on Foata normal form. 0/703 useless extension candidates. Maximal degree in co-relation 899. Up to 51 conditions per place. [2022-11-02 21:00:38,110 INFO L137 encePairwiseOnDemand]: 273/278 looper letters, 13 selfloop transitions, 4 changer transitions 0/217 dead transitions. [2022-11-02 21:00:38,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 217 transitions, 527 flow [2022-11-02 21:00:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:00:38,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:00:38,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1512 transitions. [2022-11-02 21:00:38,135 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9064748201438849 [2022-11-02 21:00:38,135 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1512 transitions. [2022-11-02 21:00:38,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1512 transitions. [2022-11-02 21:00:38,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:38,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1512 transitions. [2022-11-02 21:00:38,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 252.0) internal successors, (1512), 6 states have internal predecessors, (1512), 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) [2022-11-02 21:00:38,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 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) [2022-11-02 21:00:38,143 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 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) [2022-11-02 21:00:38,143 INFO L175 Difference]: Start difference. First operand has 225 places, 218 transitions, 495 flow. Second operand 6 states and 1512 transitions. [2022-11-02 21:00:38,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 217 transitions, 527 flow [2022-11-02 21:00:38,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 217 transitions, 523 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:38,148 INFO L231 Difference]: Finished difference. Result has 227 places, 217 transitions, 497 flow [2022-11-02 21:00:38,149 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=497, PETRI_PLACES=227, PETRI_TRANSITIONS=217} [2022-11-02 21:00:38,149 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -27 predicate places. [2022-11-02 21:00:38,150 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 217 transitions, 497 flow [2022-11-02 21:00:38,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 251.83333333333334) internal successors, (1511), 6 states have internal predecessors, (1511), 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) [2022-11-02 21:00:38,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:38,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:38,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 21:00:38,151 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-11-02 21:00:38,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:38,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1673069692, now seen corresponding path program 1 times [2022-11-02 21:00:38,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:38,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234791621] [2022-11-02 21:00:38,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:38,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:38,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:38,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234791621] [2022-11-02 21:00:38,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234791621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:38,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:38,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:38,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863247669] [2022-11-02 21:00:38,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:38,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:38,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:38,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:38,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:38,198 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 278 [2022-11-02 21:00:38,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 217 transitions, 497 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 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) [2022-11-02 21:00:38,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:38,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 278 [2022-11-02 21:00:38,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:38,356 INFO L130 PetriNetUnfolder]: 70/1022 cut-off events. [2022-11-02 21:00:38,356 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-11-02 21:00:38,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1380 conditions, 1022 events. 70/1022 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6393 event pairs, 26 based on Foata normal form. 0/971 useless extension candidates. Maximal degree in co-relation 1299. Up to 97 conditions per place. [2022-11-02 21:00:38,368 INFO L137 encePairwiseOnDemand]: 275/278 looper letters, 0 selfloop transitions, 0 changer transitions 217/217 dead transitions. [2022-11-02 21:00:38,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 217 transitions, 532 flow [2022-11-02 21:00:38,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:38,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:38,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 767 transitions. [2022-11-02 21:00:38,371 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.919664268585132 [2022-11-02 21:00:38,371 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 767 transitions. [2022-11-02 21:00:38,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 767 transitions. [2022-11-02 21:00:38,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:38,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 767 transitions. [2022-11-02 21:00:38,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.66666666666666) internal successors, (767), 3 states have internal predecessors, (767), 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) [2022-11-02 21:00:38,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:38,376 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 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) [2022-11-02 21:00:38,376 INFO L175 Difference]: Start difference. First operand has 227 places, 217 transitions, 497 flow. Second operand 3 states and 767 transitions. [2022-11-02 21:00:38,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 217 transitions, 532 flow [2022-11-02 21:00:38,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 217 transitions, 525 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:00:38,380 INFO L231 Difference]: Finished difference. Result has 224 places, 0 transitions, 0 flow [2022-11-02 21:00:38,381 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=224, PETRI_TRANSITIONS=0} [2022-11-02 21:00:38,381 INFO L287 CegarLoopForPetriNet]: 254 programPoint places, -30 predicate places. [2022-11-02 21:00:38,381 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 0 transitions, 0 flow [2022-11-02 21:00:38,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 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) [2022-11-02 21:00:38,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (56 of 57 remaining) [2022-11-02 21:00:38,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (55 of 57 remaining) [2022-11-02 21:00:38,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (54 of 57 remaining) [2022-11-02 21:00:38,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (53 of 57 remaining) [2022-11-02 21:00:38,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (52 of 57 remaining) [2022-11-02 21:00:38,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (51 of 57 remaining) [2022-11-02 21:00:38,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (50 of 57 remaining) [2022-11-02 21:00:38,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (49 of 57 remaining) [2022-11-02 21:00:38,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (48 of 57 remaining) [2022-11-02 21:00:38,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (47 of 57 remaining) [2022-11-02 21:00:38,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (46 of 57 remaining) [2022-11-02 21:00:38,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (45 of 57 remaining) [2022-11-02 21:00:38,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (44 of 57 remaining) [2022-11-02 21:00:38,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (43 of 57 remaining) [2022-11-02 21:00:38,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (42 of 57 remaining) [2022-11-02 21:00:38,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (41 of 57 remaining) [2022-11-02 21:00:38,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (40 of 57 remaining) [2022-11-02 21:00:38,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (39 of 57 remaining) [2022-11-02 21:00:38,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 57 remaining) [2022-11-02 21:00:38,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 57 remaining) [2022-11-02 21:00:38,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 57 remaining) [2022-11-02 21:00:38,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 57 remaining) [2022-11-02 21:00:38,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 57 remaining) [2022-11-02 21:00:38,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (33 of 57 remaining) [2022-11-02 21:00:38,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (32 of 57 remaining) [2022-11-02 21:00:38,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (31 of 57 remaining) [2022-11-02 21:00:38,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (30 of 57 remaining) [2022-11-02 21:00:38,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (29 of 57 remaining) [2022-11-02 21:00:38,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (28 of 57 remaining) [2022-11-02 21:00:38,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (27 of 57 remaining) [2022-11-02 21:00:38,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (26 of 57 remaining) [2022-11-02 21:00:38,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (25 of 57 remaining) [2022-11-02 21:00:38,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (24 of 57 remaining) [2022-11-02 21:00:38,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (23 of 57 remaining) [2022-11-02 21:00:38,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (22 of 57 remaining) [2022-11-02 21:00:38,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (21 of 57 remaining) [2022-11-02 21:00:38,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (20 of 57 remaining) [2022-11-02 21:00:38,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 57 remaining) [2022-11-02 21:00:38,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 57 remaining) [2022-11-02 21:00:38,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 57 remaining) [2022-11-02 21:00:38,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 57 remaining) [2022-11-02 21:00:38,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 57 remaining) [2022-11-02 21:00:38,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 57 remaining) [2022-11-02 21:00:38,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (13 of 57 remaining) [2022-11-02 21:00:38,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 57 remaining) [2022-11-02 21:00:38,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (11 of 57 remaining) [2022-11-02 21:00:38,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (10 of 57 remaining) [2022-11-02 21:00:38,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (9 of 57 remaining) [2022-11-02 21:00:38,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (8 of 57 remaining) [2022-11-02 21:00:38,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (7 of 57 remaining) [2022-11-02 21:00:38,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (6 of 57 remaining) [2022-11-02 21:00:38,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (5 of 57 remaining) [2022-11-02 21:00:38,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (4 of 57 remaining) [2022-11-02 21:00:38,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (3 of 57 remaining) [2022-11-02 21:00:38,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (2 of 57 remaining) [2022-11-02 21:00:38,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 57 remaining) [2022-11-02 21:00:38,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (0 of 57 remaining) [2022-11-02 21:00:38,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 21:00:38,394 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:38,403 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 21:00:38,403 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:00:38,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:00:38 BasicIcfg [2022-11-02 21:00:38,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:00:38,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:00:38,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:00:38,410 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:00:38,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:31" (3/4) ... [2022-11-02 21:00:38,413 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 21:00:38,419 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-02 21:00:38,419 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-02 21:00:38,428 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-02 21:00:38,429 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 21:00:38,429 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 21:00:38,429 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 21:00:38,476 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 21:00:38,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:00:38,477 INFO L158 Benchmark]: Toolchain (without parser) took 8107.57ms. Allocated memory was 107.0MB in the beginning and 205.5MB in the end (delta: 98.6MB). Free memory was 68.2MB in the beginning and 93.3MB in the end (delta: -25.1MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. [2022-11-02 21:00:38,478 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:00:38,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.91ms. Allocated memory is still 107.0MB. Free memory was 68.0MB in the beginning and 81.2MB in the end (delta: -13.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 21:00:38,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.78ms. Allocated memory is still 107.0MB. Free memory was 81.2MB in the beginning and 79.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:00:38,479 INFO L158 Benchmark]: Boogie Preprocessor took 30.62ms. Allocated memory is still 107.0MB. Free memory was 79.1MB in the beginning and 77.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:00:38,479 INFO L158 Benchmark]: RCFGBuilder took 676.09ms. Allocated memory is still 107.0MB. Free memory was 77.3MB in the beginning and 56.5MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-02 21:00:38,480 INFO L158 Benchmark]: TraceAbstraction took 6945.35ms. Allocated memory was 107.0MB in the beginning and 205.5MB in the end (delta: 98.6MB). Free memory was 56.0MB in the beginning and 96.5MB in the end (delta: -40.5MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2022-11-02 21:00:38,480 INFO L158 Benchmark]: Witness Printer took 67.69ms. Allocated memory is still 205.5MB. Free memory was 96.5MB in the beginning and 93.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:00:38,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.91ms. Allocated memory is still 107.0MB. Free memory was 68.0MB in the beginning and 81.2MB in the end (delta: -13.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.78ms. Allocated memory is still 107.0MB. Free memory was 81.2MB in the beginning and 79.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.62ms. Allocated memory is still 107.0MB. Free memory was 79.1MB in the beginning and 77.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 676.09ms. Allocated memory is still 107.0MB. Free memory was 77.3MB in the beginning and 56.5MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6945.35ms. Allocated memory was 107.0MB in the beginning and 205.5MB in the end (delta: 98.6MB). Free memory was 56.0MB in the beginning and 96.5MB in the end (delta: -40.5MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. * Witness Printer took 67.69ms. Allocated memory is still 205.5MB. Free memory was 96.5MB in the beginning and 93.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 358 locations, 57 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.7s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 257 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 68 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 460 IncrementalHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 257 mSDtfsCounter, 460 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=528occurred in iteration=0, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1894 NumberOfCodeBlocks, 1894 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1872 ConstructedInterpolants, 0 QuantifiedInterpolants, 2074 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 37 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 21:00:38,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ca9946-3c15-4542-b3b8-26e9f08fb847/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE