./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8 --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 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:39:05,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:39:05,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:39:05,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:39:05,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:39:05,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:39:05,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:39:05,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:39:05,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:39:05,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:39:05,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:39:05,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:39:05,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:39:05,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:39:05,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:39:05,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:39:05,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:39:05,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:39:05,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:39:05,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:39:05,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:39:05,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:39:05,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:39:05,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:39:05,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:39:05,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:39:05,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:39:05,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:39:05,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:39:05,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:39:05,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:39:05,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:39:05,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:39:05,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:39:05,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:39:05,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:39:05,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:39:05,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:39:05,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:39:05,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:39:05,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:39:05,586 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:39:05,625 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:39:05,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:39:05,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:39:05,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:39:05,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:39:05,627 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:39:05,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:39:05,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:39:05,628 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:39:05,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:39:05,630 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:39:05,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:39:05,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:39:05,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:39:05,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:39:05,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:39:05,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:39:05,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:39:05,632 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:39:05,632 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:39:05,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:39:05,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:39:05,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:39:05,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:39:05,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:39:05,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:39:05,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:39:05,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:39:05,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:39:05,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:39:05,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:39:05,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:39:05,636 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:39:05,637 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:39:05,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:39:05,637 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_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 [2022-11-16 11:39:05,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:39:05,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:39:05,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:39:05,980 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:39:05,981 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:39:05,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2022-11-16 11:39:06,055 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/data/7bf88997f/bc0c9c7cb560427e9d0aee0a091927cc/FLAGa36b8e1a4 [2022-11-16 11:39:06,590 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:39:06,590 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c [2022-11-16 11:39:06,599 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/data/7bf88997f/bc0c9c7cb560427e9d0aee0a091927cc/FLAGa36b8e1a4 [2022-11-16 11:39:06,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/data/7bf88997f/bc0c9c7cb560427e9d0aee0a091927cc [2022-11-16 11:39:06,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:39:06,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:39:06,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:39:06,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:39:06,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:39:06,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:39:06" (1/1) ... [2022-11-16 11:39:06,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356dc5bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:06, skipping insertion in model container [2022-11-16 11:39:06,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:39:06" (1/1) ... [2022-11-16 11:39:06,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:39:07,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:39:07,298 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2022-11-16 11:39:07,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:39:07,339 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:39:07,407 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/sv-benchmarks/c/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2022-11-16 11:39:07,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:39:07,439 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:39:07,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:07 WrapperNode [2022-11-16 11:39:07,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:39:07,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:39:07,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:39:07,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:39:07,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:07" (1/1) ... [2022-11-16 11:39:07,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:07" (1/1) ... [2022-11-16 11:39:07,522 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 437 [2022-11-16 11:39:07,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:39:07,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:39:07,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:39:07,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:39:07,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:07" (1/1) ... [2022-11-16 11:39:07,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:07" (1/1) ... [2022-11-16 11:39:07,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:07" (1/1) ... [2022-11-16 11:39:07,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:07" (1/1) ... [2022-11-16 11:39:07,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:07" (1/1) ... [2022-11-16 11:39:07,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:07" (1/1) ... [2022-11-16 11:39:07,598 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:07" (1/1) ... [2022-11-16 11:39:07,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:07" (1/1) ... [2022-11-16 11:39:07,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:39:07,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:39:07,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:39:07,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:39:07,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:07" (1/1) ... [2022-11-16 11:39:07,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:39:07,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:39:07,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:39:07,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd8d2bd5-a5f4-4e1d-ba50-148b791c1b8a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:39:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:39:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:39:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:39:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:39:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:39:07,718 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:39:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:39:07,718 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:39:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:39:07,718 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:39:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:39:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:39:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:39:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:39:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:39:07,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:39:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:39:07,721 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:39:07,881 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:39:07,883 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:39:08,842 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:39:09,093 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:39:09,093 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-16 11:39:09,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:39:09 BoogieIcfgContainer [2022-11-16 11:39:09,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:39:09,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:39:09,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:39:09,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:39:09,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:39:06" (1/3) ... [2022-11-16 11:39:09,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e5dbdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:39:09, skipping insertion in model container [2022-11-16 11:39:09,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:07" (2/3) ... [2022-11-16 11:39:09,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e5dbdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:39:09, skipping insertion in model container [2022-11-16 11:39:09,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:39:09" (3/3) ... [2022-11-16 11:39:09,110 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2022-11-16 11:39:09,128 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:39:09,139 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:39:09,139 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-11-16 11:39:09,139 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:39:09,289 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:39:09,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 412 places, 428 transitions, 880 flow [2022-11-16 11:39:09,595 INFO L130 PetriNetUnfolder]: 26/425 cut-off events. [2022-11-16 11:39:09,599 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:39:09,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 425 events. 26/425 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 803 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 313. Up to 2 conditions per place. [2022-11-16 11:39:09,609 INFO L82 GeneralOperation]: Start removeDead. Operand has 412 places, 428 transitions, 880 flow [2022-11-16 11:39:09,622 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 390 places, 405 transitions, 828 flow [2022-11-16 11:39:09,631 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:39:09,637 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;@3c3d07cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:39:09,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2022-11-16 11:39:09,653 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-11-16 11:39:09,654 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:39:09,654 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:09,655 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:09,655 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 11:39:09,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:09,661 INFO L85 PathProgramCache]: Analyzing trace with hash -253943540, now seen corresponding path program 1 times [2022-11-16 11:39:09,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:09,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381615610] [2022-11-16 11:39:09,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:09,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:09,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:09,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:09,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381615610] [2022-11-16 11:39:09,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381615610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:09,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:09,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:39:09,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385450249] [2022-11-16 11:39:09,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:09,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:09,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:09,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:09,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:09,981 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 428 [2022-11-16 11:39:09,991 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 405 transitions, 828 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:09,991 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:09,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 428 [2022-11-16 11:39:09,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:10,642 INFO L130 PetriNetUnfolder]: 173/1532 cut-off events. [2022-11-16 11:39:10,643 INFO L131 PetriNetUnfolder]: For 106/118 co-relation queries the response was YES. [2022-11-16 11:39:10,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1827 conditions, 1532 events. 173/1532 cut-off events. For 106/118 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10246 event pairs, 114 based on Foata normal form. 124/1344 useless extension candidates. Maximal degree in co-relation 1075. Up to 232 conditions per place. [2022-11-16 11:39:10,664 INFO L137 encePairwiseOnDemand]: 397/428 looper letters, 24 selfloop transitions, 2 changer transitions 5/376 dead transitions. [2022-11-16 11:39:10,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 376 transitions, 822 flow [2022-11-16 11:39:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:39:10,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1168 transitions. [2022-11-16 11:39:10,682 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9096573208722741 [2022-11-16 11:39:10,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1168 transitions. [2022-11-16 11:39:10,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1168 transitions. [2022-11-16 11:39:10,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:10,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1168 transitions. [2022-11-16 11:39:10,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:10,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:10,704 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:10,706 INFO L175 Difference]: Start difference. First operand has 390 places, 405 transitions, 828 flow. Second operand 3 states and 1168 transitions. [2022-11-16 11:39:10,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 376 transitions, 822 flow [2022-11-16 11:39:10,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 376 transitions, 810 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 11:39:10,720 INFO L231 Difference]: Finished difference. Result has 373 places, 371 transitions, 752 flow [2022-11-16 11:39:10,722 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=752, PETRI_PLACES=373, PETRI_TRANSITIONS=371} [2022-11-16 11:39:10,726 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -17 predicate places. [2022-11-16 11:39:10,726 INFO L495 AbstractCegarLoop]: Abstraction has has 373 places, 371 transitions, 752 flow [2022-11-16 11:39:10,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:10,727 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:10,728 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:10,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:39:10,728 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 11:39:10,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:10,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1173953820, now seen corresponding path program 1 times [2022-11-16 11:39:10,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:10,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522915491] [2022-11-16 11:39:10,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:10,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:10,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:10,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522915491] [2022-11-16 11:39:10,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522915491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:10,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:10,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:39:10,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532367866] [2022-11-16 11:39:10,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:10,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:10,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:10,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:10,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:10,792 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 428 [2022-11-16 11:39:10,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 371 transitions, 752 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:10,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:10,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 428 [2022-11-16 11:39:10,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:11,233 INFO L130 PetriNetUnfolder]: 139/1370 cut-off events. [2022-11-16 11:39:11,234 INFO L131 PetriNetUnfolder]: For 16/33 co-relation queries the response was YES. [2022-11-16 11:39:11,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1592 conditions, 1370 events. 139/1370 cut-off events. For 16/33 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8538 event pairs, 90 based on Foata normal form. 0/1108 useless extension candidates. Maximal degree in co-relation 1557. Up to 200 conditions per place. [2022-11-16 11:39:11,253 INFO L137 encePairwiseOnDemand]: 425/428 looper letters, 24 selfloop transitions, 2 changer transitions 0/370 dead transitions. [2022-11-16 11:39:11,253 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 370 transitions, 802 flow [2022-11-16 11:39:11,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:11,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:39:11,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1140 transitions. [2022-11-16 11:39:11,257 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8878504672897196 [2022-11-16 11:39:11,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1140 transitions. [2022-11-16 11:39:11,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1140 transitions. [2022-11-16 11:39:11,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:11,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1140 transitions. [2022-11-16 11:39:11,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.0) internal successors, (1140), 3 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:11,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:11,266 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:11,266 INFO L175 Difference]: Start difference. First operand has 373 places, 371 transitions, 752 flow. Second operand 3 states and 1140 transitions. [2022-11-16 11:39:11,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 370 transitions, 802 flow [2022-11-16 11:39:11,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 370 transitions, 798 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:39:11,274 INFO L231 Difference]: Finished difference. Result has 367 places, 370 transitions, 750 flow [2022-11-16 11:39:11,275 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=750, PETRI_PLACES=367, PETRI_TRANSITIONS=370} [2022-11-16 11:39:11,277 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -23 predicate places. [2022-11-16 11:39:11,277 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 370 transitions, 750 flow [2022-11-16 11:39:11,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:11,278 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:11,278 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:11,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:39:11,279 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 11:39:11,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:11,281 INFO L85 PathProgramCache]: Analyzing trace with hash -910761905, now seen corresponding path program 1 times [2022-11-16 11:39:11,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:11,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784669539] [2022-11-16 11:39:11,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:11,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:11,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:11,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784669539] [2022-11-16 11:39:11,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784669539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:11,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:11,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:39:11,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106317517] [2022-11-16 11:39:11,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:11,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:11,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:11,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:11,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:11,404 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 428 [2022-11-16 11:39:11,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 370 transitions, 750 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:11,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:11,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 428 [2022-11-16 11:39:11,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:12,264 INFO L130 PetriNetUnfolder]: 449/3369 cut-off events. [2022-11-16 11:39:12,265 INFO L131 PetriNetUnfolder]: For 62/66 co-relation queries the response was YES. [2022-11-16 11:39:12,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3984 conditions, 3369 events. 449/3369 cut-off events. For 62/66 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 29114 event pairs, 264 based on Foata normal form. 0/2694 useless extension candidates. Maximal degree in co-relation 3942. Up to 578 conditions per place. [2022-11-16 11:39:12,303 INFO L137 encePairwiseOnDemand]: 425/428 looper letters, 24 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2022-11-16 11:39:12,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 369 transitions, 800 flow [2022-11-16 11:39:12,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:12,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:39:12,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1140 transitions. [2022-11-16 11:39:12,306 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8878504672897196 [2022-11-16 11:39:12,306 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1140 transitions. [2022-11-16 11:39:12,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1140 transitions. [2022-11-16 11:39:12,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:12,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1140 transitions. [2022-11-16 11:39:12,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.0) internal successors, (1140), 3 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:12,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:12,314 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:12,314 INFO L175 Difference]: Start difference. First operand has 367 places, 370 transitions, 750 flow. Second operand 3 states and 1140 transitions. [2022-11-16 11:39:12,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 369 transitions, 800 flow [2022-11-16 11:39:12,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 369 transitions, 796 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:39:12,321 INFO L231 Difference]: Finished difference. Result has 366 places, 369 transitions, 748 flow [2022-11-16 11:39:12,322 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=748, PETRI_PLACES=366, PETRI_TRANSITIONS=369} [2022-11-16 11:39:12,323 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -24 predicate places. [2022-11-16 11:39:12,323 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 369 transitions, 748 flow [2022-11-16 11:39:12,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:12,325 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:12,325 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:12,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:39:12,325 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 11:39:12,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:12,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1508304381, now seen corresponding path program 1 times [2022-11-16 11:39:12,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:12,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897086678] [2022-11-16 11:39:12,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:12,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:12,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:12,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:12,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897086678] [2022-11-16 11:39:12,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897086678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:12,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:12,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:39:12,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084970788] [2022-11-16 11:39:12,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:12,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:12,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:12,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:12,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:12,376 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 428 [2022-11-16 11:39:12,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 369 transitions, 748 flow. Second operand has 3 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:12,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:12,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 428 [2022-11-16 11:39:12,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:12,700 INFO L130 PetriNetUnfolder]: 102/1204 cut-off events. [2022-11-16 11:39:12,700 INFO L131 PetriNetUnfolder]: For 13/22 co-relation queries the response was YES. [2022-11-16 11:39:12,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1360 conditions, 1204 events. 102/1204 cut-off events. For 13/22 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6902 event pairs, 59 based on Foata normal form. 0/1008 useless extension candidates. Maximal degree in co-relation 1310. Up to 136 conditions per place. [2022-11-16 11:39:12,715 INFO L137 encePairwiseOnDemand]: 423/428 looper letters, 18 selfloop transitions, 1 changer transitions 0/365 dead transitions. [2022-11-16 11:39:12,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 365 transitions, 778 flow [2022-11-16 11:39:12,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:12,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:39:12,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2022-11-16 11:39:12,719 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8917445482866043 [2022-11-16 11:39:12,719 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2022-11-16 11:39:12,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2022-11-16 11:39:12,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:12,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2022-11-16 11:39:12,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:12,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:12,727 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:12,728 INFO L175 Difference]: Start difference. First operand has 366 places, 369 transitions, 748 flow. Second operand 3 states and 1145 transitions. [2022-11-16 11:39:12,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 365 transitions, 778 flow [2022-11-16 11:39:12,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 365 transitions, 774 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:39:12,735 INFO L231 Difference]: Finished difference. Result has 362 places, 365 transitions, 738 flow [2022-11-16 11:39:12,736 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=738, PETRI_PLACES=362, PETRI_TRANSITIONS=365} [2022-11-16 11:39:12,736 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -28 predicate places. [2022-11-16 11:39:12,737 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 365 transitions, 738 flow [2022-11-16 11:39:12,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:12,738 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:12,738 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:12,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:39:12,738 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 11:39:12,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:12,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1457745557, now seen corresponding path program 1 times [2022-11-16 11:39:12,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:12,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183461842] [2022-11-16 11:39:12,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:12,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:12,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:12,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183461842] [2022-11-16 11:39:12,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183461842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:12,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:12,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:39:12,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672327901] [2022-11-16 11:39:12,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:12,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:12,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:12,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:12,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:12,849 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 428 [2022-11-16 11:39:12,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 365 transitions, 738 flow. Second operand has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:12,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:12,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 428 [2022-11-16 11:39:12,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:14,383 INFO L130 PetriNetUnfolder]: 1599/7060 cut-off events. [2022-11-16 11:39:14,384 INFO L131 PetriNetUnfolder]: For 146/153 co-relation queries the response was YES. [2022-11-16 11:39:14,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9340 conditions, 7060 events. 1599/7060 cut-off events. For 146/153 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 69516 event pairs, 1071 based on Foata normal form. 0/5618 useless extension candidates. Maximal degree in co-relation 9291. Up to 2202 conditions per place. [2022-11-16 11:39:14,450 INFO L137 encePairwiseOnDemand]: 425/428 looper letters, 30 selfloop transitions, 2 changer transitions 0/364 dead transitions. [2022-11-16 11:39:14,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 364 transitions, 800 flow [2022-11-16 11:39:14,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:39:14,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1128 transitions. [2022-11-16 11:39:14,454 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8785046728971962 [2022-11-16 11:39:14,454 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1128 transitions. [2022-11-16 11:39:14,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1128 transitions. [2022-11-16 11:39:14,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:14,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1128 transitions. [2022-11-16 11:39:14,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 376.0) internal successors, (1128), 3 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:14,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:14,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:14,462 INFO L175 Difference]: Start difference. First operand has 362 places, 365 transitions, 738 flow. Second operand 3 states and 1128 transitions. [2022-11-16 11:39:14,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 364 transitions, 800 flow [2022-11-16 11:39:14,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 364 transitions, 799 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:39:14,469 INFO L231 Difference]: Finished difference. Result has 362 places, 364 transitions, 739 flow [2022-11-16 11:39:14,470 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=735, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=739, PETRI_PLACES=362, PETRI_TRANSITIONS=364} [2022-11-16 11:39:14,475 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -28 predicate places. [2022-11-16 11:39:14,476 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 364 transitions, 739 flow [2022-11-16 11:39:14,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:14,477 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:14,478 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:14,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:39:14,478 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 11:39:14,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:14,480 INFO L85 PathProgramCache]: Analyzing trace with hash -2085658422, now seen corresponding path program 1 times [2022-11-16 11:39:14,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:14,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052065027] [2022-11-16 11:39:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:14,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:15,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:15,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052065027] [2022-11-16 11:39:15,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052065027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:15,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:15,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:39:15,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426906084] [2022-11-16 11:39:15,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:15,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:39:15,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:15,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:39:15,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:39:15,116 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 428 [2022-11-16 11:39:15,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 364 transitions, 739 flow. Second operand has 6 states, 6 states have (on average 302.8333333333333) internal successors, (1817), 6 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:15,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:15,119 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 428 [2022-11-16 11:39:15,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:40,268 INFO L130 PetriNetUnfolder]: 62691/157490 cut-off events. [2022-11-16 11:39:40,268 INFO L131 PetriNetUnfolder]: For 397/402 co-relation queries the response was YES. [2022-11-16 11:39:40,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240761 conditions, 157490 events. 62691/157490 cut-off events. For 397/402 co-relation queries the response was YES. Maximal size of possible extension queue 3690. Compared 2101550 event pairs, 53781 based on Foata normal form. 0/127501 useless extension candidates. Maximal degree in co-relation 240713. Up to 83045 conditions per place. [2022-11-16 11:39:41,722 INFO L137 encePairwiseOnDemand]: 416/428 looper letters, 85 selfloop transitions, 10 changer transitions 0/362 dead transitions. [2022-11-16 11:39:41,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 362 transitions, 925 flow [2022-11-16 11:39:41,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:39:41,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:39:41,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1903 transitions. [2022-11-16 11:39:41,729 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7410436137071651 [2022-11-16 11:39:41,729 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1903 transitions. [2022-11-16 11:39:41,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1903 transitions. [2022-11-16 11:39:41,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:41,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1903 transitions. [2022-11-16 11:39:41,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 317.1666666666667) internal successors, (1903), 6 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:41,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 428.0) internal successors, (2996), 7 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:41,745 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 428.0) internal successors, (2996), 7 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:41,746 INFO L175 Difference]: Start difference. First operand has 362 places, 364 transitions, 739 flow. Second operand 6 states and 1903 transitions. [2022-11-16 11:39:41,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 362 transitions, 925 flow [2022-11-16 11:39:41,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 362 transitions, 921 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:39:41,755 INFO L231 Difference]: Finished difference. Result has 363 places, 362 transitions, 751 flow [2022-11-16 11:39:41,756 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=751, PETRI_PLACES=363, PETRI_TRANSITIONS=362} [2022-11-16 11:39:41,759 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -27 predicate places. [2022-11-16 11:39:41,759 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 362 transitions, 751 flow [2022-11-16 11:39:41,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 302.8333333333333) internal successors, (1817), 6 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:41,760 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:41,760 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:41,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:39:41,761 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 11:39:41,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:41,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1107897835, now seen corresponding path program 1 times [2022-11-16 11:39:41,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:41,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754976721] [2022-11-16 11:39:41,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:41,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:41,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:41,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:41,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754976721] [2022-11-16 11:39:41,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754976721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:41,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:41,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:39:41,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698954342] [2022-11-16 11:39:41,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:41,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:41,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:41,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:41,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:41,853 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 428 [2022-11-16 11:39:41,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 362 transitions, 751 flow. Second operand has 3 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:41,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:41,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 428 [2022-11-16 11:39:41,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:42,565 INFO L130 PetriNetUnfolder]: 266/2478 cut-off events. [2022-11-16 11:39:42,565 INFO L131 PetriNetUnfolder]: For 42/45 co-relation queries the response was YES. [2022-11-16 11:39:42,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2837 conditions, 2478 events. 266/2478 cut-off events. For 42/45 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 19172 event pairs, 135 based on Foata normal form. 0/2094 useless extension candidates. Maximal degree in co-relation 2804. Up to 322 conditions per place. [2022-11-16 11:39:42,585 INFO L137 encePairwiseOnDemand]: 423/428 looper letters, 18 selfloop transitions, 1 changer transitions 0/358 dead transitions. [2022-11-16 11:39:42,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 358 transitions, 781 flow [2022-11-16 11:39:42,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:42,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:39:42,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2022-11-16 11:39:42,588 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8917445482866043 [2022-11-16 11:39:42,588 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2022-11-16 11:39:42,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2022-11-16 11:39:42,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:42,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2022-11-16 11:39:42,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:42,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:42,595 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:42,596 INFO L175 Difference]: Start difference. First operand has 363 places, 362 transitions, 751 flow. Second operand 3 states and 1145 transitions. [2022-11-16 11:39:42,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 358 transitions, 781 flow [2022-11-16 11:39:42,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 358 transitions, 761 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:39:42,603 INFO L231 Difference]: Finished difference. Result has 356 places, 358 transitions, 725 flow [2022-11-16 11:39:42,604 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=725, PETRI_PLACES=356, PETRI_TRANSITIONS=358} [2022-11-16 11:39:42,604 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -34 predicate places. [2022-11-16 11:39:42,605 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 358 transitions, 725 flow [2022-11-16 11:39:42,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:42,605 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:42,606 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:42,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:39:42,606 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 11:39:42,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:42,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1901188234, now seen corresponding path program 1 times [2022-11-16 11:39:42,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:42,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677128405] [2022-11-16 11:39:42,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:42,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:42,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:42,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677128405] [2022-11-16 11:39:42,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677128405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:42,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:42,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:39:42,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366077114] [2022-11-16 11:39:42,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:42,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:42,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:42,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:42,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:42,657 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 428 [2022-11-16 11:39:42,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 358 transitions, 725 flow. Second operand has 3 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:42,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:42,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 428 [2022-11-16 11:39:42,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:42,782 INFO L130 PetriNetUnfolder]: 32/650 cut-off events. [2022-11-16 11:39:42,783 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-16 11:39:42,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 650 events. 32/650 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2344 event pairs, 15 based on Foata normal form. 0/571 useless extension candidates. Maximal degree in co-relation 654. Up to 40 conditions per place. [2022-11-16 11:39:42,789 INFO L137 encePairwiseOnDemand]: 425/428 looper letters, 12 selfloop transitions, 2 changer transitions 0/357 dead transitions. [2022-11-16 11:39:42,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 357 transitions, 751 flow [2022-11-16 11:39:42,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:42,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:39:42,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1164 transitions. [2022-11-16 11:39:42,793 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065420560747663 [2022-11-16 11:39:42,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1164 transitions. [2022-11-16 11:39:42,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1164 transitions. [2022-11-16 11:39:42,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:42,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1164 transitions. [2022-11-16 11:39:42,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:42,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:42,800 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:42,800 INFO L175 Difference]: Start difference. First operand has 356 places, 358 transitions, 725 flow. Second operand 3 states and 1164 transitions. [2022-11-16 11:39:42,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 357 transitions, 751 flow [2022-11-16 11:39:42,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 357 transitions, 750 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:39:42,807 INFO L231 Difference]: Finished difference. Result has 356 places, 357 transitions, 726 flow [2022-11-16 11:39:42,808 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=726, PETRI_PLACES=356, PETRI_TRANSITIONS=357} [2022-11-16 11:39:42,808 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -34 predicate places. [2022-11-16 11:39:42,809 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 357 transitions, 726 flow [2022-11-16 11:39:42,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:42,810 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:42,810 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:42,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:39:42,810 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 11:39:42,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:42,811 INFO L85 PathProgramCache]: Analyzing trace with hash -304445157, now seen corresponding path program 1 times [2022-11-16 11:39:42,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:42,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962071029] [2022-11-16 11:39:42,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:42,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:42,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:42,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:42,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962071029] [2022-11-16 11:39:42,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962071029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:42,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:42,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:39:42,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860517575] [2022-11-16 11:39:42,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:42,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:42,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:42,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:42,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:42,860 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 428 [2022-11-16 11:39:42,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 357 transitions, 726 flow. Second operand has 3 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:42,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:42,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 428 [2022-11-16 11:39:42,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:43,067 INFO L130 PetriNetUnfolder]: 121/1257 cut-off events. [2022-11-16 11:39:43,067 INFO L131 PetriNetUnfolder]: For 21/27 co-relation queries the response was YES. [2022-11-16 11:39:43,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1427 conditions, 1257 events. 121/1257 cut-off events. For 21/27 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7527 event pairs, 71 based on Foata normal form. 0/1078 useless extension candidates. Maximal degree in co-relation 1377. Up to 150 conditions per place. [2022-11-16 11:39:43,076 INFO L137 encePairwiseOnDemand]: 423/428 looper letters, 18 selfloop transitions, 1 changer transitions 0/353 dead transitions. [2022-11-16 11:39:43,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 353 transitions, 756 flow [2022-11-16 11:39:43,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:43,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:39:43,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2022-11-16 11:39:43,080 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8917445482866043 [2022-11-16 11:39:43,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2022-11-16 11:39:43,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2022-11-16 11:39:43,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:43,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2022-11-16 11:39:43,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:43,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:43,088 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:43,088 INFO L175 Difference]: Start difference. First operand has 356 places, 357 transitions, 726 flow. Second operand 3 states and 1145 transitions. [2022-11-16 11:39:43,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 353 transitions, 756 flow [2022-11-16 11:39:43,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 353 transitions, 752 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:39:43,095 INFO L231 Difference]: Finished difference. Result has 352 places, 353 transitions, 716 flow [2022-11-16 11:39:43,096 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=352, PETRI_TRANSITIONS=353} [2022-11-16 11:39:43,096 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -38 predicate places. [2022-11-16 11:39:43,097 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 353 transitions, 716 flow [2022-11-16 11:39:43,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:43,098 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:43,098 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:43,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:39:43,098 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 11:39:43,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:43,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1588970243, now seen corresponding path program 1 times [2022-11-16 11:39:43,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:43,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36660958] [2022-11-16 11:39:43,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:43,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:43,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:43,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36660958] [2022-11-16 11:39:43,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36660958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:43,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:43,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:39:43,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943530921] [2022-11-16 11:39:43,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:43,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:43,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:43,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:43,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:43,157 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 428 [2022-11-16 11:39:43,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 353 transitions, 716 flow. Second operand has 3 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:43,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:43,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 428 [2022-11-16 11:39:43,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:44,151 INFO L130 PetriNetUnfolder]: 771/4278 cut-off events. [2022-11-16 11:39:44,151 INFO L131 PetriNetUnfolder]: For 88/88 co-relation queries the response was YES. [2022-11-16 11:39:44,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5360 conditions, 4278 events. 771/4278 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 38125 event pairs, 395 based on Foata normal form. 0/3744 useless extension candidates. Maximal degree in co-relation 5312. Up to 1025 conditions per place. [2022-11-16 11:39:44,177 INFO L137 encePairwiseOnDemand]: 419/428 looper letters, 28 selfloop transitions, 3 changer transitions 0/355 dead transitions. [2022-11-16 11:39:44,177 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 355 transitions, 787 flow [2022-11-16 11:39:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:44,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:39:44,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2022-11-16 11:39:44,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8886292834890965 [2022-11-16 11:39:44,181 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2022-11-16 11:39:44,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2022-11-16 11:39:44,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:44,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2022-11-16 11:39:44,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:44,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:44,197 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 428.0) internal successors, (1712), 4 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:44,197 INFO L175 Difference]: Start difference. First operand has 352 places, 353 transitions, 716 flow. Second operand 3 states and 1141 transitions. [2022-11-16 11:39:44,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 355 transitions, 787 flow [2022-11-16 11:39:44,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 355 transitions, 786 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:39:44,205 INFO L231 Difference]: Finished difference. Result has 348 places, 350 transitions, 724 flow [2022-11-16 11:39:44,206 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=348, PETRI_TRANSITIONS=350} [2022-11-16 11:39:44,207 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -42 predicate places. [2022-11-16 11:39:44,207 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 350 transitions, 724 flow [2022-11-16 11:39:44,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:44,208 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:44,208 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:44,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:39:44,209 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 11:39:44,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:44,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1255716793, now seen corresponding path program 1 times [2022-11-16 11:39:44,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:44,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810043662] [2022-11-16 11:39:44,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:44,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:44,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:44,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:44,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810043662] [2022-11-16 11:39:44,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810043662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:44,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:44,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:39:44,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737142505] [2022-11-16 11:39:44,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:44,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:39:44,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:44,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:39:44,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:39:44,461 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 428 [2022-11-16 11:39:44,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 350 transitions, 724 flow. Second operand has 7 states, 7 states have (on average 332.85714285714283) internal successors, (2330), 7 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:44,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:44,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 428 [2022-11-16 11:39:44,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:45,180 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1442] thread2EXIT-->L103-7: Formula: (and (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem40#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][315], [452#(= |#race~M~0| 0), 456#(= |#race~A~0| 0), 74#L75-10true, 444#(= |#race~size~0| 0), Black: 454#true, 465#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), 429#(= |#race~N~0| 0), 273#L103-7true]) [2022-11-16 11:39:45,180 INFO L383 tUnfolder$Statistics]: this new event has 205 ancestors and is not cut-off event [2022-11-16 11:39:45,180 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-16 11:39:45,180 INFO L386 tUnfolder$Statistics]: existing Event has 205 ancestors and is not cut-off event [2022-11-16 11:39:45,181 INFO L386 tUnfolder$Statistics]: existing Event has 219 ancestors and is not cut-off event [2022-11-16 11:39:45,182 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1442] thread2EXIT-->L103-7: Formula: (and (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem40#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][315], [452#(= |#race~M~0| 0), 456#(= |#race~A~0| 0), 444#(= |#race~size~0| 0), Black: 454#true, 465#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), 429#(= |#race~N~0| 0), 273#L103-7true, 121#L76true]) [2022-11-16 11:39:45,182 INFO L383 tUnfolder$Statistics]: this new event has 205 ancestors and is not cut-off event [2022-11-16 11:39:45,182 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-16 11:39:45,182 INFO L386 tUnfolder$Statistics]: existing Event has 205 ancestors and is not cut-off event [2022-11-16 11:39:45,182 INFO L386 tUnfolder$Statistics]: existing Event has 219 ancestors and is not cut-off event [2022-11-16 11:39:45,376 INFO L130 PetriNetUnfolder]: 739/3405 cut-off events. [2022-11-16 11:39:45,376 INFO L131 PetriNetUnfolder]: For 64/301 co-relation queries the response was YES. [2022-11-16 11:39:45,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4777 conditions, 3405 events. 739/3405 cut-off events. For 64/301 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 29006 event pairs, 446 based on Foata normal form. 1/2807 useless extension candidates. Maximal degree in co-relation 4727. Up to 951 conditions per place. [2022-11-16 11:39:45,415 INFO L137 encePairwiseOnDemand]: 417/428 looper letters, 101 selfloop transitions, 12 changer transitions 0/396 dead transitions. [2022-11-16 11:39:45,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 396 transitions, 1050 flow [2022-11-16 11:39:45,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:39:45,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:39:45,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3404 transitions. [2022-11-16 11:39:45,423 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7953271028037383 [2022-11-16 11:39:45,423 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3404 transitions. [2022-11-16 11:39:45,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3404 transitions. [2022-11-16 11:39:45,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:45,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3404 transitions. [2022-11-16 11:39:45,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 340.4) internal successors, (3404), 10 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:45,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 428.0) internal successors, (4708), 11 states have internal predecessors, (4708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:45,443 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 428.0) internal successors, (4708), 11 states have internal predecessors, (4708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:45,444 INFO L175 Difference]: Start difference. First operand has 348 places, 350 transitions, 724 flow. Second operand 10 states and 3404 transitions. [2022-11-16 11:39:45,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 396 transitions, 1050 flow [2022-11-16 11:39:45,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 396 transitions, 1050 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:39:45,452 INFO L231 Difference]: Finished difference. Result has 360 places, 355 transitions, 774 flow [2022-11-16 11:39:45,453 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=774, PETRI_PLACES=360, PETRI_TRANSITIONS=355} [2022-11-16 11:39:45,454 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -30 predicate places. [2022-11-16 11:39:45,454 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 355 transitions, 774 flow [2022-11-16 11:39:45,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 332.85714285714283) internal successors, (2330), 7 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:45,457 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:45,457 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:45,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:39:45,457 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 11:39:45,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:45,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1789463533, now seen corresponding path program 1 times [2022-11-16 11:39:45,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:45,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331189422] [2022-11-16 11:39:45,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:45,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:45,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:45,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331189422] [2022-11-16 11:39:45,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331189422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:45,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:45,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:39:45,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628910166] [2022-11-16 11:39:45,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:45,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:39:45,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:45,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:39:45,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:39:45,620 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 360 out of 428 [2022-11-16 11:39:45,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 355 transitions, 774 flow. Second operand has 5 states, 5 states have (on average 363.4) internal successors, (1817), 5 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:45,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:45,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 360 of 428 [2022-11-16 11:39:45,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:46,584 INFO L130 PetriNetUnfolder]: 987/5176 cut-off events. [2022-11-16 11:39:46,584 INFO L131 PetriNetUnfolder]: For 314/367 co-relation queries the response was YES. [2022-11-16 11:39:46,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6842 conditions, 5176 events. 987/5176 cut-off events. For 314/367 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 48911 event pairs, 587 based on Foata normal form. 0/4409 useless extension candidates. Maximal degree in co-relation 6784. Up to 1197 conditions per place. [2022-11-16 11:39:46,612 INFO L137 encePairwiseOnDemand]: 423/428 looper letters, 52 selfloop transitions, 4 changer transitions 0/373 dead transitions. [2022-11-16 11:39:46,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 373 transitions, 930 flow [2022-11-16 11:39:46,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:39:46,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:39:46,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1857 transitions. [2022-11-16 11:39:46,618 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8677570093457944 [2022-11-16 11:39:46,619 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1857 transitions. [2022-11-16 11:39:46,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1857 transitions. [2022-11-16 11:39:46,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:46,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1857 transitions. [2022-11-16 11:39:46,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 371.4) internal successors, (1857), 5 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:46,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 428.0) internal successors, (2568), 6 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:46,630 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 428.0) internal successors, (2568), 6 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:46,630 INFO L175 Difference]: Start difference. First operand has 360 places, 355 transitions, 774 flow. Second operand 5 states and 1857 transitions. [2022-11-16 11:39:46,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 373 transitions, 930 flow [2022-11-16 11:39:46,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 373 transitions, 924 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:39:46,637 INFO L231 Difference]: Finished difference. Result has 364 places, 356 transitions, 785 flow [2022-11-16 11:39:46,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=428, PETRI_DIFFERENCE_MINUEND_FLOW=768, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=785, PETRI_PLACES=364, PETRI_TRANSITIONS=356} [2022-11-16 11:39:46,640 INFO L288 CegarLoopForPetriNet]: 390 programPoint places, -26 predicate places. [2022-11-16 11:39:46,640 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 356 transitions, 785 flow [2022-11-16 11:39:46,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 363.4) internal successors, (1817), 5 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:46,642 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:46,642 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:46,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:39:46,642 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-16 11:39:46,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:46,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1618251100, now seen corresponding path program 1 times [2022-11-16 11:39:46,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:46,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021742092] [2022-11-16 11:39:46,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:46,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:47,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:47,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:47,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021742092] [2022-11-16 11:39:47,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021742092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:47,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:47,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:39:47,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291460206] [2022-11-16 11:39:47,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:47,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:39:47,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:47,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:39:47,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:39:47,114 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 428 [2022-11-16 11:39:47,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 356 transitions, 785 flow. Second operand has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:47,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:47,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 428 [2022-11-16 11:39:47,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand