./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN --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 0e7e1d85f63f5db62c0766d87dec12398108cf8053838b2df867ce8148d55e54 --- 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-6b4ec56 [2022-11-20 12:14:14,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:14:14,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:14:14,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:14:14,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:14:14,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:14:14,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:14:14,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:14:14,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:14:14,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:14:14,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:14:14,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:14:14,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:14:14,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:14:14,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:14:14,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:14:14,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:14:14,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:14:14,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:14:14,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:14:14,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:14:14,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:14:14,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:14:14,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:14:14,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:14:14,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:14:14,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:14:14,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:14:14,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:14:14,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:14:14,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:14:14,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:14:14,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:14:14,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:14:14,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:14:14,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:14:14,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:14:14,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:14:14,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:14:14,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:14:14,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:14:14,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:14:14,337 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:14:14,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:14:14,337 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:14:14,337 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:14:14,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:14:14,338 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:14:14,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:14:14,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:14:14,339 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:14:14,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:14:14,340 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:14:14,340 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:14:14,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:14:14,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:14:14,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:14:14,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:14:14,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:14:14,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:14:14,341 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:14:14,341 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:14:14,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:14:14,342 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:14:14,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:14:14,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:14:14,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:14:14,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:14:14,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:14:14,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:14:14,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:14:14,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:14:14,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:14:14,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:14:14,344 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:14:14,344 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:14:14,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:14:14,344 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_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e7e1d85f63f5db62c0766d87dec12398108cf8053838b2df867ce8148d55e54 [2022-11-20 12:14:14,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:14:14,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:14:14,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:14:14,632 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:14:14,632 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:14:14,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2022-11-20 12:14:17,815 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:14:18,033 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:14:18,034 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2022-11-20 12:14:18,044 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/data/61ab2692a/ef440b1d330742e68305ebb1e286b03d/FLAGb101dfaa9 [2022-11-20 12:14:18,066 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/data/61ab2692a/ef440b1d330742e68305ebb1e286b03d [2022-11-20 12:14:18,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:14:18,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:14:18,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:14:18,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:14:18,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:14:18,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:14:18" (1/1) ... [2022-11-20 12:14:18,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205e439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18, skipping insertion in model container [2022-11-20 12:14:18,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:14:18" (1/1) ... [2022-11-20 12:14:18,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:14:18,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:14:18,372 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c[3057,3070] [2022-11-20 12:14:18,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:14:18,390 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:14:18,429 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c[3057,3070] [2022-11-20 12:14:18,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:14:18,449 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:14:18,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18 WrapperNode [2022-11-20 12:14:18,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:14:18,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:14:18,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:14:18,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:14:18,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18" (1/1) ... [2022-11-20 12:14:18,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18" (1/1) ... [2022-11-20 12:14:18,509 INFO L138 Inliner]: procedures = 25, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 213 [2022-11-20 12:14:18,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:14:18,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:14:18,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:14:18,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:14:18,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18" (1/1) ... [2022-11-20 12:14:18,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18" (1/1) ... [2022-11-20 12:14:18,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18" (1/1) ... [2022-11-20 12:14:18,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18" (1/1) ... [2022-11-20 12:14:18,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18" (1/1) ... [2022-11-20 12:14:18,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18" (1/1) ... [2022-11-20 12:14:18,609 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18" (1/1) ... [2022-11-20 12:14:18,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18" (1/1) ... [2022-11-20 12:14:18,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:14:18,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:14:18,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:14:18,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:14:18,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18" (1/1) ... [2022-11-20 12:14:18,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:14:18,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:14:18,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:14:18,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:14:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:14:18,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:14:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:14:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:14:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 12:14:18,714 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 12:14:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 12:14:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 12:14:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 12:14:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 12:14:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:14:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:14:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:14:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:14:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:14:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:14:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:14:18,719 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:14:18,865 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:14:18,867 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:14:19,755 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:14:20,038 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:14:20,038 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 12:14:20,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:14:20 BoogieIcfgContainer [2022-11-20 12:14:20,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:14:20,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:14:20,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:14:20,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:14:20,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:14:18" (1/3) ... [2022-11-20 12:14:20,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37215daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:14:20, skipping insertion in model container [2022-11-20 12:14:20,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:18" (2/3) ... [2022-11-20 12:14:20,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37215daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:14:20, skipping insertion in model container [2022-11-20 12:14:20,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:14:20" (3/3) ... [2022-11-20 12:14:20,058 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2022-11-20 12:14:20,067 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:14:20,077 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:14:20,077 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2022-11-20 12:14:20,077 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:14:20,202 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 12:14:20,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 321 places, 326 transitions, 676 flow [2022-11-20 12:14:20,426 INFO L130 PetriNetUnfolder]: 15/323 cut-off events. [2022-11-20 12:14:20,428 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:14:20,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 323 events. 15/323 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 461 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 267. Up to 2 conditions per place. [2022-11-20 12:14:20,437 INFO L82 GeneralOperation]: Start removeDead. Operand has 321 places, 326 transitions, 676 flow [2022-11-20 12:14:20,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 299 places, 303 transitions, 624 flow [2022-11-20 12:14:20,466 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:14:20,475 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;@613be9d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:14:20,476 INFO L358 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2022-11-20 12:14:20,484 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-11-20 12:14:20,484 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:14:20,485 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:20,485 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] [2022-11-20 12:14:20,487 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:20,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:20,493 INFO L85 PathProgramCache]: Analyzing trace with hash 616618658, now seen corresponding path program 1 times [2022-11-20 12:14:20,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:20,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014907630] [2022-11-20 12:14:20,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:20,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:20,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:20,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:20,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014907630] [2022-11-20 12:14:20,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014907630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:20,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:20,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:20,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382492643] [2022-11-20 12:14:20,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:20,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:20,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:20,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:20,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:20,822 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 326 [2022-11-20 12:14:20,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 303 transitions, 624 flow. Second operand has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 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) [2022-11-20 12:14:20,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:20,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 326 [2022-11-20 12:14:20,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:21,198 INFO L130 PetriNetUnfolder]: 88/539 cut-off events. [2022-11-20 12:14:21,198 INFO L131 PetriNetUnfolder]: For 72/91 co-relation queries the response was YES. [2022-11-20 12:14:21,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 539 events. 88/539 cut-off events. For 72/91 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2002 event pairs, 71 based on Foata normal form. 32/488 useless extension candidates. Maximal degree in co-relation 467. Up to 144 conditions per place. [2022-11-20 12:14:21,207 INFO L137 encePairwiseOnDemand]: 289/326 looper letters, 22 selfloop transitions, 2 changer transitions 4/268 dead transitions. [2022-11-20 12:14:21,207 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 268 transitions, 602 flow [2022-11-20 12:14:21,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:21,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 854 transitions. [2022-11-20 12:14:21,228 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8732106339468303 [2022-11-20 12:14:21,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 854 transitions. [2022-11-20 12:14:21,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 854 transitions. [2022-11-20 12:14:21,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:21,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 854 transitions. [2022-11-20 12:14:21,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 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) [2022-11-20 12:14:21,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:21,253 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:21,255 INFO L175 Difference]: Start difference. First operand has 299 places, 303 transitions, 624 flow. Second operand 3 states and 854 transitions. [2022-11-20 12:14:21,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 268 transitions, 602 flow [2022-11-20 12:14:21,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 268 transitions, 590 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 12:14:21,268 INFO L231 Difference]: Finished difference. Result has 267 places, 264 transitions, 538 flow [2022-11-20 12:14:21,271 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=267, PETRI_TRANSITIONS=264} [2022-11-20 12:14:21,276 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -32 predicate places. [2022-11-20 12:14:21,276 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 264 transitions, 538 flow [2022-11-20 12:14:21,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 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) [2022-11-20 12:14:21,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:21,278 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] [2022-11-20 12:14:21,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:14:21,278 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:21,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:21,279 INFO L85 PathProgramCache]: Analyzing trace with hash 483481532, now seen corresponding path program 1 times [2022-11-20 12:14:21,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:21,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460201371] [2022-11-20 12:14:21,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:21,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:21,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:21,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:21,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460201371] [2022-11-20 12:14:21,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460201371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:21,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:21,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:21,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434922642] [2022-11-20 12:14:21,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:21,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:21,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:21,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:21,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:21,358 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 326 [2022-11-20 12:14:21,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 264 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 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) [2022-11-20 12:14:21,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:21,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 326 [2022-11-20 12:14:21,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:21,553 INFO L130 PetriNetUnfolder]: 88/534 cut-off events. [2022-11-20 12:14:21,553 INFO L131 PetriNetUnfolder]: For 11/30 co-relation queries the response was YES. [2022-11-20 12:14:21,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 534 events. 88/534 cut-off events. For 11/30 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2005 event pairs, 71 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 667. Up to 141 conditions per place. [2022-11-20 12:14:21,559 INFO L137 encePairwiseOnDemand]: 323/326 looper letters, 19 selfloop transitions, 2 changer transitions 0/263 dead transitions. [2022-11-20 12:14:21,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 263 transitions, 578 flow [2022-11-20 12:14:21,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:21,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:21,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 826 transitions. [2022-11-20 12:14:21,563 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8445807770961146 [2022-11-20 12:14:21,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 826 transitions. [2022-11-20 12:14:21,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 826 transitions. [2022-11-20 12:14:21,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:21,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 826 transitions. [2022-11-20 12:14:21,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.3333333333333) internal successors, (826), 3 states have internal predecessors, (826), 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) [2022-11-20 12:14:21,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:21,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:21,572 INFO L175 Difference]: Start difference. First operand has 267 places, 264 transitions, 538 flow. Second operand 3 states and 826 transitions. [2022-11-20 12:14:21,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 263 transitions, 578 flow [2022-11-20 12:14:21,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 263 transitions, 574 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:14:21,579 INFO L231 Difference]: Finished difference. Result has 262 places, 263 transitions, 536 flow [2022-11-20 12:14:21,580 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=262, PETRI_TRANSITIONS=263} [2022-11-20 12:14:21,581 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -37 predicate places. [2022-11-20 12:14:21,581 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 263 transitions, 536 flow [2022-11-20 12:14:21,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 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) [2022-11-20 12:14:21,583 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:21,583 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] [2022-11-20 12:14:21,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:14:21,583 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:21,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:21,584 INFO L85 PathProgramCache]: Analyzing trace with hash -172925758, now seen corresponding path program 1 times [2022-11-20 12:14:21,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:21,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386099927] [2022-11-20 12:14:21,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:21,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:21,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:21,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386099927] [2022-11-20 12:14:21,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386099927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:21,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:21,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:21,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103947108] [2022-11-20 12:14:21,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:21,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:21,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:21,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:21,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:21,667 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 326 [2022-11-20 12:14:21,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 263 transitions, 536 flow. Second operand has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 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) [2022-11-20 12:14:21,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:21,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 326 [2022-11-20 12:14:21,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:21,990 INFO L130 PetriNetUnfolder]: 253/884 cut-off events. [2022-11-20 12:14:21,990 INFO L131 PetriNetUnfolder]: For 17/73 co-relation queries the response was YES. [2022-11-20 12:14:21,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1358 conditions, 884 events. 253/884 cut-off events. For 17/73 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4724 event pairs, 230 based on Foata normal form. 0/769 useless extension candidates. Maximal degree in co-relation 1316. Up to 411 conditions per place. [2022-11-20 12:14:22,000 INFO L137 encePairwiseOnDemand]: 323/326 looper letters, 28 selfloop transitions, 2 changer transitions 0/262 dead transitions. [2022-11-20 12:14:22,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 262 transitions, 594 flow [2022-11-20 12:14:22,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:22,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:22,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 808 transitions. [2022-11-20 12:14:22,003 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8261758691206544 [2022-11-20 12:14:22,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 808 transitions. [2022-11-20 12:14:22,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 808 transitions. [2022-11-20 12:14:22,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:22,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 808 transitions. [2022-11-20 12:14:22,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 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) [2022-11-20 12:14:22,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:22,011 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:22,011 INFO L175 Difference]: Start difference. First operand has 262 places, 263 transitions, 536 flow. Second operand 3 states and 808 transitions. [2022-11-20 12:14:22,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 262 transitions, 594 flow [2022-11-20 12:14:22,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 262 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:14:22,019 INFO L231 Difference]: Finished difference. Result has 261 places, 262 transitions, 534 flow [2022-11-20 12:14:22,019 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=261, PETRI_TRANSITIONS=262} [2022-11-20 12:14:22,020 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -38 predicate places. [2022-11-20 12:14:22,021 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 262 transitions, 534 flow [2022-11-20 12:14:22,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 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) [2022-11-20 12:14:22,022 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:22,022 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] [2022-11-20 12:14:22,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:14:22,023 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:22,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:22,023 INFO L85 PathProgramCache]: Analyzing trace with hash -777092352, now seen corresponding path program 1 times [2022-11-20 12:14:22,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:22,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508725115] [2022-11-20 12:14:22,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:22,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:22,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:22,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:22,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508725115] [2022-11-20 12:14:22,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508725115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:22,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:22,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:22,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947749047] [2022-11-20 12:14:22,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:22,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:22,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:22,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:22,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:22,112 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 326 [2022-11-20 12:14:22,114 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 262 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 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) [2022-11-20 12:14:22,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:22,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 326 [2022-11-20 12:14:22,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:22,383 INFO L130 PetriNetUnfolder]: 188/733 cut-off events. [2022-11-20 12:14:22,383 INFO L131 PetriNetUnfolder]: For 16/60 co-relation queries the response was YES. [2022-11-20 12:14:22,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 733 events. 188/733 cut-off events. For 16/60 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3515 event pairs, 167 based on Foata normal form. 0/670 useless extension candidates. Maximal degree in co-relation 1033. Up to 300 conditions per place. [2022-11-20 12:14:22,390 INFO L137 encePairwiseOnDemand]: 321/326 looper letters, 22 selfloop transitions, 1 changer transitions 0/258 dead transitions. [2022-11-20 12:14:22,390 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 258 transitions, 572 flow [2022-11-20 12:14:22,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:22,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:22,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 813 transitions. [2022-11-20 12:14:22,395 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8312883435582822 [2022-11-20 12:14:22,398 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 813 transitions. [2022-11-20 12:14:22,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 813 transitions. [2022-11-20 12:14:22,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:22,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 813 transitions. [2022-11-20 12:14:22,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 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) [2022-11-20 12:14:22,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:22,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:22,408 INFO L175 Difference]: Start difference. First operand has 261 places, 262 transitions, 534 flow. Second operand 3 states and 813 transitions. [2022-11-20 12:14:22,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 258 transitions, 572 flow [2022-11-20 12:14:22,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 258 transitions, 568 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:14:22,421 INFO L231 Difference]: Finished difference. Result has 257 places, 258 transitions, 524 flow [2022-11-20 12:14:22,421 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=524, PETRI_PLACES=257, PETRI_TRANSITIONS=258} [2022-11-20 12:14:22,423 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -42 predicate places. [2022-11-20 12:14:22,423 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 258 transitions, 524 flow [2022-11-20 12:14:22,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 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) [2022-11-20 12:14:22,424 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:22,424 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] [2022-11-20 12:14:22,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:14:22,425 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:22,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:22,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1485173198, now seen corresponding path program 1 times [2022-11-20 12:14:22,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:22,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848321538] [2022-11-20 12:14:22,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:22,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:22,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:22,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848321538] [2022-11-20 12:14:22,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848321538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:22,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:22,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:22,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628647781] [2022-11-20 12:14:22,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:22,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:22,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:22,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:22,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:22,551 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 326 [2022-11-20 12:14:22,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 258 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 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) [2022-11-20 12:14:22,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:22,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 326 [2022-11-20 12:14:22,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:22,750 INFO L130 PetriNetUnfolder]: 88/518 cut-off events. [2022-11-20 12:14:22,750 INFO L131 PetriNetUnfolder]: For 11/30 co-relation queries the response was YES. [2022-11-20 12:14:22,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685 conditions, 518 events. 88/518 cut-off events. For 11/30 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1934 event pairs, 71 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 636. Up to 141 conditions per place. [2022-11-20 12:14:22,755 INFO L137 encePairwiseOnDemand]: 323/326 looper letters, 19 selfloop transitions, 2 changer transitions 0/257 dead transitions. [2022-11-20 12:14:22,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 257 transitions, 564 flow [2022-11-20 12:14:22,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:22,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:22,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 826 transitions. [2022-11-20 12:14:22,759 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8445807770961146 [2022-11-20 12:14:22,759 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 826 transitions. [2022-11-20 12:14:22,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 826 transitions. [2022-11-20 12:14:22,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:22,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 826 transitions. [2022-11-20 12:14:22,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.3333333333333) internal successors, (826), 3 states have internal predecessors, (826), 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) [2022-11-20 12:14:22,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:22,767 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:22,767 INFO L175 Difference]: Start difference. First operand has 257 places, 258 transitions, 524 flow. Second operand 3 states and 826 transitions. [2022-11-20 12:14:22,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 257 transitions, 564 flow [2022-11-20 12:14:22,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 257 transitions, 563 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:14:22,774 INFO L231 Difference]: Finished difference. Result has 257 places, 257 transitions, 525 flow [2022-11-20 12:14:22,774 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=525, PETRI_PLACES=257, PETRI_TRANSITIONS=257} [2022-11-20 12:14:22,778 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -42 predicate places. [2022-11-20 12:14:22,778 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 257 transitions, 525 flow [2022-11-20 12:14:22,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 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) [2022-11-20 12:14:22,779 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:22,780 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] [2022-11-20 12:14:22,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:14:22,780 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:22,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:22,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1868055847, now seen corresponding path program 1 times [2022-11-20 12:14:22,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:22,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764362718] [2022-11-20 12:14:22,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:22,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:22,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:22,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:22,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764362718] [2022-11-20 12:14:22,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764362718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:22,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:22,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:22,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350171881] [2022-11-20 12:14:22,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:22,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:22,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:22,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:22,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:22,878 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 326 [2022-11-20 12:14:22,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 257 transitions, 525 flow. Second operand has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 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) [2022-11-20 12:14:22,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:22,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 326 [2022-11-20 12:14:22,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:23,076 INFO L130 PetriNetUnfolder]: 88/517 cut-off events. [2022-11-20 12:14:23,077 INFO L131 PetriNetUnfolder]: For 11/30 co-relation queries the response was YES. [2022-11-20 12:14:23,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 517 events. 88/517 cut-off events. For 11/30 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1938 event pairs, 71 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 637. Up to 141 conditions per place. [2022-11-20 12:14:23,081 INFO L137 encePairwiseOnDemand]: 323/326 looper letters, 19 selfloop transitions, 2 changer transitions 0/256 dead transitions. [2022-11-20 12:14:23,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 256 transitions, 565 flow [2022-11-20 12:14:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:23,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:23,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 826 transitions. [2022-11-20 12:14:23,084 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8445807770961146 [2022-11-20 12:14:23,085 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 826 transitions. [2022-11-20 12:14:23,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 826 transitions. [2022-11-20 12:14:23,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:23,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 826 transitions. [2022-11-20 12:14:23,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.3333333333333) internal successors, (826), 3 states have internal predecessors, (826), 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) [2022-11-20 12:14:23,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:23,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:23,092 INFO L175 Difference]: Start difference. First operand has 257 places, 257 transitions, 525 flow. Second operand 3 states and 826 transitions. [2022-11-20 12:14:23,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 256 transitions, 565 flow [2022-11-20 12:14:23,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 256 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:14:23,098 INFO L231 Difference]: Finished difference. Result has 256 places, 256 transitions, 523 flow [2022-11-20 12:14:23,099 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=523, PETRI_PLACES=256, PETRI_TRANSITIONS=256} [2022-11-20 12:14:23,100 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -43 predicate places. [2022-11-20 12:14:23,100 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 256 transitions, 523 flow [2022-11-20 12:14:23,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 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) [2022-11-20 12:14:23,101 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:23,101 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] [2022-11-20 12:14:23,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:14:23,102 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:23,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:23,103 INFO L85 PathProgramCache]: Analyzing trace with hash 2091579367, now seen corresponding path program 1 times [2022-11-20 12:14:23,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:23,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084165489] [2022-11-20 12:14:23,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:23,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:23,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:23,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:23,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084165489] [2022-11-20 12:14:23,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084165489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:23,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:23,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:23,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781690944] [2022-11-20 12:14:23,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:23,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:23,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:23,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:23,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:23,161 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 326 [2022-11-20 12:14:23,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 256 transitions, 523 flow. Second operand has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 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) [2022-11-20 12:14:23,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:23,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 326 [2022-11-20 12:14:23,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:23,348 INFO L130 PetriNetUnfolder]: 88/516 cut-off events. [2022-11-20 12:14:23,348 INFO L131 PetriNetUnfolder]: For 11/30 co-relation queries the response was YES. [2022-11-20 12:14:23,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 516 events. 88/516 cut-off events. For 11/30 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1932 event pairs, 71 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 644. Up to 149 conditions per place. [2022-11-20 12:14:23,352 INFO L137 encePairwiseOnDemand]: 323/326 looper letters, 27 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2022-11-20 12:14:23,352 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 255 transitions, 579 flow [2022-11-20 12:14:23,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:23,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:23,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 807 transitions. [2022-11-20 12:14:23,355 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8251533742331288 [2022-11-20 12:14:23,355 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 807 transitions. [2022-11-20 12:14:23,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 807 transitions. [2022-11-20 12:14:23,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:23,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 807 transitions. [2022-11-20 12:14:23,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 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) [2022-11-20 12:14:23,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:23,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:23,361 INFO L175 Difference]: Start difference. First operand has 256 places, 256 transitions, 523 flow. Second operand 3 states and 807 transitions. [2022-11-20 12:14:23,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 255 transitions, 579 flow [2022-11-20 12:14:23,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 255 transitions, 575 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:14:23,367 INFO L231 Difference]: Finished difference. Result has 255 places, 255 transitions, 521 flow [2022-11-20 12:14:23,367 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=521, PETRI_PLACES=255, PETRI_TRANSITIONS=255} [2022-11-20 12:14:23,368 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -44 predicate places. [2022-11-20 12:14:23,368 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 255 transitions, 521 flow [2022-11-20 12:14:23,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 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) [2022-11-20 12:14:23,369 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:23,369 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] [2022-11-20 12:14:23,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:14:23,369 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:23,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:23,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1523960251, now seen corresponding path program 1 times [2022-11-20 12:14:23,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:23,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289205253] [2022-11-20 12:14:23,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:23,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:23,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:23,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:23,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289205253] [2022-11-20 12:14:23,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289205253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:23,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:23,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:23,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833706539] [2022-11-20 12:14:23,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:23,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:23,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:23,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:23,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:23,446 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 326 [2022-11-20 12:14:23,447 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 255 transitions, 521 flow. Second operand has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 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) [2022-11-20 12:14:23,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:23,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 326 [2022-11-20 12:14:23,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:23,635 INFO L130 PetriNetUnfolder]: 88/515 cut-off events. [2022-11-20 12:14:23,635 INFO L131 PetriNetUnfolder]: For 11/30 co-relation queries the response was YES. [2022-11-20 12:14:23,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 515 events. 88/515 cut-off events. For 11/30 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1935 event pairs, 71 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 635. Up to 141 conditions per place. [2022-11-20 12:14:23,639 INFO L137 encePairwiseOnDemand]: 323/326 looper letters, 19 selfloop transitions, 2 changer transitions 0/254 dead transitions. [2022-11-20 12:14:23,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 254 transitions, 561 flow [2022-11-20 12:14:23,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:23,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:23,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 826 transitions. [2022-11-20 12:14:23,643 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8445807770961146 [2022-11-20 12:14:23,643 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 826 transitions. [2022-11-20 12:14:23,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 826 transitions. [2022-11-20 12:14:23,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:23,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 826 transitions. [2022-11-20 12:14:23,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.3333333333333) internal successors, (826), 3 states have internal predecessors, (826), 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) [2022-11-20 12:14:23,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:23,649 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:23,649 INFO L175 Difference]: Start difference. First operand has 255 places, 255 transitions, 521 flow. Second operand 3 states and 826 transitions. [2022-11-20 12:14:23,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 254 transitions, 561 flow [2022-11-20 12:14:23,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 254 transitions, 557 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:14:23,658 INFO L231 Difference]: Finished difference. Result has 254 places, 254 transitions, 519 flow [2022-11-20 12:14:23,659 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=519, PETRI_PLACES=254, PETRI_TRANSITIONS=254} [2022-11-20 12:14:23,662 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -45 predicate places. [2022-11-20 12:14:23,662 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 254 transitions, 519 flow [2022-11-20 12:14:23,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 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) [2022-11-20 12:14:23,663 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:23,663 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] [2022-11-20 12:14:23,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:14:23,664 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:23,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:23,667 INFO L85 PathProgramCache]: Analyzing trace with hash 60252546, now seen corresponding path program 1 times [2022-11-20 12:14:23,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:23,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373873919] [2022-11-20 12:14:23,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:23,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:24,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:24,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:24,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373873919] [2022-11-20 12:14:24,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373873919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:24,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:24,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:14:24,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714136511] [2022-11-20 12:14:24,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:24,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:14:24,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:24,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:14:24,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:14:24,312 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 326 [2022-11-20 12:14:24,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 254 transitions, 519 flow. Second operand has 6 states, 6 states have (on average 237.83333333333334) internal successors, (1427), 6 states have internal predecessors, (1427), 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) [2022-11-20 12:14:24,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:24,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 326 [2022-11-20 12:14:24,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:24,860 INFO L130 PetriNetUnfolder]: 542/1276 cut-off events. [2022-11-20 12:14:24,860 INFO L131 PetriNetUnfolder]: For 3/87 co-relation queries the response was YES. [2022-11-20 12:14:24,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2161 conditions, 1276 events. 542/1276 cut-off events. For 3/87 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6227 event pairs, 521 based on Foata normal form. 0/1129 useless extension candidates. Maximal degree in co-relation 2113. Up to 854 conditions per place. [2022-11-20 12:14:24,869 INFO L137 encePairwiseOnDemand]: 320/326 looper letters, 48 selfloop transitions, 5 changer transitions 0/253 dead transitions. [2022-11-20 12:14:24,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 253 transitions, 623 flow [2022-11-20 12:14:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:14:24,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:14:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1470 transitions. [2022-11-20 12:14:24,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7515337423312883 [2022-11-20 12:14:24,873 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1470 transitions. [2022-11-20 12:14:24,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1470 transitions. [2022-11-20 12:14:24,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:24,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1470 transitions. [2022-11-20 12:14:24,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 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) [2022-11-20 12:14:24,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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) [2022-11-20 12:14:24,882 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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) [2022-11-20 12:14:24,883 INFO L175 Difference]: Start difference. First operand has 254 places, 254 transitions, 519 flow. Second operand 6 states and 1470 transitions. [2022-11-20 12:14:24,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 253 transitions, 623 flow [2022-11-20 12:14:24,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 253 transitions, 619 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:14:24,888 INFO L231 Difference]: Finished difference. Result has 256 places, 253 transitions, 523 flow [2022-11-20 12:14:24,889 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=523, PETRI_PLACES=256, PETRI_TRANSITIONS=253} [2022-11-20 12:14:24,889 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -43 predicate places. [2022-11-20 12:14:24,890 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 253 transitions, 523 flow [2022-11-20 12:14:24,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 237.83333333333334) internal successors, (1427), 6 states have internal predecessors, (1427), 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) [2022-11-20 12:14:24,890 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:24,891 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] [2022-11-20 12:14:24,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:14:24,891 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:24,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:24,892 INFO L85 PathProgramCache]: Analyzing trace with hash -27402919, now seen corresponding path program 1 times [2022-11-20 12:14:24,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:24,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405252118] [2022-11-20 12:14:24,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:24,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:24,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:24,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:24,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405252118] [2022-11-20 12:14:24,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405252118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:24,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:24,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:24,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897931675] [2022-11-20 12:14:24,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:24,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:24,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:24,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:24,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:24,939 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 326 [2022-11-20 12:14:24,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 253 transitions, 523 flow. Second operand has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 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) [2022-11-20 12:14:24,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:24,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 326 [2022-11-20 12:14:24,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:25,072 INFO L130 PetriNetUnfolder]: 91/572 cut-off events. [2022-11-20 12:14:25,072 INFO L131 PetriNetUnfolder]: For 11/34 co-relation queries the response was YES. [2022-11-20 12:14:25,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 572 events. 91/572 cut-off events. For 11/34 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2229 event pairs, 6 based on Foata normal form. 1/521 useless extension candidates. Maximal degree in co-relation 724. Up to 118 conditions per place. [2022-11-20 12:14:25,076 INFO L137 encePairwiseOnDemand]: 322/326 looper letters, 23 selfloop transitions, 2 changer transitions 0/257 dead transitions. [2022-11-20 12:14:25,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 257 transitions, 583 flow [2022-11-20 12:14:25,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:25,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:25,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2022-11-20 12:14:25,079 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8496932515337423 [2022-11-20 12:14:25,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2022-11-20 12:14:25,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2022-11-20 12:14:25,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:25,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2022-11-20 12:14:25,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 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) [2022-11-20 12:14:25,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:25,085 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:25,085 INFO L175 Difference]: Start difference. First operand has 256 places, 253 transitions, 523 flow. Second operand 3 states and 831 transitions. [2022-11-20 12:14:25,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 257 transitions, 583 flow [2022-11-20 12:14:25,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 257 transitions, 573 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:14:25,090 INFO L231 Difference]: Finished difference. Result has 251 places, 251 transitions, 513 flow [2022-11-20 12:14:25,091 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=509, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=251, PETRI_TRANSITIONS=251} [2022-11-20 12:14:25,092 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -48 predicate places. [2022-11-20 12:14:25,092 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 251 transitions, 513 flow [2022-11-20 12:14:25,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 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) [2022-11-20 12:14:25,093 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:25,093 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] [2022-11-20 12:14:25,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:14:25,093 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:25,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:25,094 INFO L85 PathProgramCache]: Analyzing trace with hash -564376562, now seen corresponding path program 1 times [2022-11-20 12:14:25,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:25,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396866462] [2022-11-20 12:14:25,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:25,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:25,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:25,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:25,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396866462] [2022-11-20 12:14:25,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396866462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:25,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:25,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:25,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827440625] [2022-11-20 12:14:25,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:25,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:25,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:25,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:25,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:25,139 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 326 [2022-11-20 12:14:25,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 251 transitions, 513 flow. Second operand has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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) [2022-11-20 12:14:25,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:25,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 326 [2022-11-20 12:14:25,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:25,264 INFO L130 PetriNetUnfolder]: 93/537 cut-off events. [2022-11-20 12:14:25,264 INFO L131 PetriNetUnfolder]: For 23/41 co-relation queries the response was YES. [2022-11-20 12:14:25,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 537 events. 93/537 cut-off events. For 23/41 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2054 event pairs, 10 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 664. Up to 109 conditions per place. [2022-11-20 12:14:25,268 INFO L137 encePairwiseOnDemand]: 323/326 looper letters, 21 selfloop transitions, 2 changer transitions 0/256 dead transitions. [2022-11-20 12:14:25,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 256 transitions, 573 flow [2022-11-20 12:14:25,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:25,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:25,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 837 transitions. [2022-11-20 12:14:25,270 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8558282208588958 [2022-11-20 12:14:25,271 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 837 transitions. [2022-11-20 12:14:25,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 837 transitions. [2022-11-20 12:14:25,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:25,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 837 transitions. [2022-11-20 12:14:25,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 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) [2022-11-20 12:14:25,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:25,315 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:25,316 INFO L175 Difference]: Start difference. First operand has 251 places, 251 transitions, 513 flow. Second operand 3 states and 837 transitions. [2022-11-20 12:14:25,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 256 transitions, 573 flow [2022-11-20 12:14:25,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 256 transitions, 567 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:14:25,321 INFO L231 Difference]: Finished difference. Result has 250 places, 250 transitions, 511 flow [2022-11-20 12:14:25,322 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=511, PETRI_PLACES=250, PETRI_TRANSITIONS=250} [2022-11-20 12:14:25,322 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -49 predicate places. [2022-11-20 12:14:25,323 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 250 transitions, 511 flow [2022-11-20 12:14:25,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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) [2022-11-20 12:14:25,323 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:25,323 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] [2022-11-20 12:14:25,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:14:25,324 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:25,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:25,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1510652969, now seen corresponding path program 1 times [2022-11-20 12:14:25,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:25,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678321500] [2022-11-20 12:14:25,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:25,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:25,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:25,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:25,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678321500] [2022-11-20 12:14:25,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678321500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:25,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:25,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:25,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600991836] [2022-11-20 12:14:25,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:25,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:25,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:25,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:25,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:25,373 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 326 [2022-11-20 12:14:25,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 250 transitions, 511 flow. Second operand has 3 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 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) [2022-11-20 12:14:25,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:25,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 326 [2022-11-20 12:14:25,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:25,580 INFO L130 PetriNetUnfolder]: 159/777 cut-off events. [2022-11-20 12:14:25,581 INFO L131 PetriNetUnfolder]: For 37/66 co-relation queries the response was YES. [2022-11-20 12:14:25,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 777 events. 159/777 cut-off events. For 37/66 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3656 event pairs, 110 based on Foata normal form. 1/695 useless extension candidates. Maximal degree in co-relation 1043. Up to 158 conditions per place. [2022-11-20 12:14:25,587 INFO L137 encePairwiseOnDemand]: 319/326 looper letters, 30 selfloop transitions, 2 changer transitions 3/258 dead transitions. [2022-11-20 12:14:25,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 258 transitions, 602 flow [2022-11-20 12:14:25,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:25,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:25,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 824 transitions. [2022-11-20 12:14:25,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8425357873210634 [2022-11-20 12:14:25,590 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 824 transitions. [2022-11-20 12:14:25,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 824 transitions. [2022-11-20 12:14:25,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:25,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 824 transitions. [2022-11-20 12:14:25,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 274.6666666666667) internal successors, (824), 3 states have internal predecessors, (824), 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) [2022-11-20 12:14:25,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:25,597 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:25,597 INFO L175 Difference]: Start difference. First operand has 250 places, 250 transitions, 511 flow. Second operand 3 states and 824 transitions. [2022-11-20 12:14:25,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 258 transitions, 602 flow [2022-11-20 12:14:25,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 258 transitions, 596 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:14:25,603 INFO L231 Difference]: Finished difference. Result has 247 places, 244 transitions, 502 flow [2022-11-20 12:14:25,604 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=247, PETRI_TRANSITIONS=244} [2022-11-20 12:14:25,604 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -52 predicate places. [2022-11-20 12:14:25,604 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 244 transitions, 502 flow [2022-11-20 12:14:25,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 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) [2022-11-20 12:14:25,605 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:25,605 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] [2022-11-20 12:14:25,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:14:25,606 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:25,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:25,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1506748562, now seen corresponding path program 1 times [2022-11-20 12:14:25,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:25,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914437238] [2022-11-20 12:14:25,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:25,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:25,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:25,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914437238] [2022-11-20 12:14:25,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914437238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:25,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:25,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:25,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216154056] [2022-11-20 12:14:25,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:25,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:25,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:25,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:25,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:25,668 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 326 [2022-11-20 12:14:25,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 244 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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) [2022-11-20 12:14:25,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:25,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 326 [2022-11-20 12:14:25,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:25,887 INFO L130 PetriNetUnfolder]: 173/931 cut-off events. [2022-11-20 12:14:25,887 INFO L131 PetriNetUnfolder]: For 53/73 co-relation queries the response was YES. [2022-11-20 12:14:25,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1310 conditions, 931 events. 173/931 cut-off events. For 53/73 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4919 event pairs, 87 based on Foata normal form. 0/842 useless extension candidates. Maximal degree in co-relation 1261. Up to 248 conditions per place. [2022-11-20 12:14:25,894 INFO L137 encePairwiseOnDemand]: 322/326 looper letters, 21 selfloop transitions, 3 changer transitions 0/250 dead transitions. [2022-11-20 12:14:25,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 250 transitions, 570 flow [2022-11-20 12:14:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:25,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:25,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 836 transitions. [2022-11-20 12:14:25,897 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8548057259713702 [2022-11-20 12:14:25,898 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 836 transitions. [2022-11-20 12:14:25,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 836 transitions. [2022-11-20 12:14:25,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:25,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 836 transitions. [2022-11-20 12:14:25,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:14:25,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:25,904 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:25,905 INFO L175 Difference]: Start difference. First operand has 247 places, 244 transitions, 502 flow. Second operand 3 states and 836 transitions. [2022-11-20 12:14:25,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 250 transitions, 570 flow [2022-11-20 12:14:25,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 250 transitions, 567 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:14:25,911 INFO L231 Difference]: Finished difference. Result has 245 places, 245 transitions, 515 flow [2022-11-20 12:14:25,911 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=515, PETRI_PLACES=245, PETRI_TRANSITIONS=245} [2022-11-20 12:14:25,912 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -54 predicate places. [2022-11-20 12:14:25,912 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 245 transitions, 515 flow [2022-11-20 12:14:25,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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) [2022-11-20 12:14:25,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:25,914 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] [2022-11-20 12:14:25,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:14:25,915 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:25,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:25,915 INFO L85 PathProgramCache]: Analyzing trace with hash 38586212, now seen corresponding path program 1 times [2022-11-20 12:14:25,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:25,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490628236] [2022-11-20 12:14:25,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:25,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:25,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:25,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:25,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490628236] [2022-11-20 12:14:25,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490628236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:25,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:25,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:25,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177534831] [2022-11-20 12:14:25,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:25,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:25,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:25,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:25,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:25,969 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 326 [2022-11-20 12:14:25,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 245 transitions, 515 flow. Second operand has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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) [2022-11-20 12:14:25,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:25,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 326 [2022-11-20 12:14:25,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:26,223 INFO L130 PetriNetUnfolder]: 180/989 cut-off events. [2022-11-20 12:14:26,223 INFO L131 PetriNetUnfolder]: For 100/122 co-relation queries the response was YES. [2022-11-20 12:14:26,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1440 conditions, 989 events. 180/989 cut-off events. For 100/122 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5456 event pairs, 67 based on Foata normal form. 0/903 useless extension candidates. Maximal degree in co-relation 1391. Up to 161 conditions per place. [2022-11-20 12:14:26,231 INFO L137 encePairwiseOnDemand]: 322/326 looper letters, 29 selfloop transitions, 4 changer transitions 0/258 dead transitions. [2022-11-20 12:14:26,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 258 transitions, 624 flow [2022-11-20 12:14:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:26,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:26,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 842 transitions. [2022-11-20 12:14:26,234 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8609406952965235 [2022-11-20 12:14:26,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 842 transitions. [2022-11-20 12:14:26,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 842 transitions. [2022-11-20 12:14:26,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:26,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 842 transitions. [2022-11-20 12:14:26,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 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) [2022-11-20 12:14:26,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:26,240 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:26,240 INFO L175 Difference]: Start difference. First operand has 245 places, 245 transitions, 515 flow. Second operand 3 states and 842 transitions. [2022-11-20 12:14:26,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 258 transitions, 624 flow [2022-11-20 12:14:26,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 258 transitions, 624 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:14:26,246 INFO L231 Difference]: Finished difference. Result has 248 places, 246 transitions, 539 flow [2022-11-20 12:14:26,246 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=539, PETRI_PLACES=248, PETRI_TRANSITIONS=246} [2022-11-20 12:14:26,247 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -51 predicate places. [2022-11-20 12:14:26,247 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 246 transitions, 539 flow [2022-11-20 12:14:26,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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) [2022-11-20 12:14:26,248 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:26,248 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] [2022-11-20 12:14:26,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:14:26,249 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:26,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:26,249 INFO L85 PathProgramCache]: Analyzing trace with hash -705957086, now seen corresponding path program 1 times [2022-11-20 12:14:26,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:26,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148598705] [2022-11-20 12:14:26,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:26,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:26,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:26,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:26,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148598705] [2022-11-20 12:14:26,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148598705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:26,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:26,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:14:26,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811159257] [2022-11-20 12:14:26,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:26,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:14:26,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:26,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:14:26,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:14:26,785 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 326 [2022-11-20 12:14:26,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 246 transitions, 539 flow. Second operand has 6 states, 6 states have (on average 245.33333333333334) internal successors, (1472), 6 states have internal predecessors, (1472), 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) [2022-11-20 12:14:26,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:26,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 326 [2022-11-20 12:14:26,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:27,688 INFO L130 PetriNetUnfolder]: 1152/3400 cut-off events. [2022-11-20 12:14:27,688 INFO L131 PetriNetUnfolder]: For 1905/1927 co-relation queries the response was YES. [2022-11-20 12:14:27,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6426 conditions, 3400 events. 1152/3400 cut-off events. For 1905/1927 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 26253 event pairs, 339 based on Foata normal form. 0/3058 useless extension candidates. Maximal degree in co-relation 6374. Up to 1574 conditions per place. [2022-11-20 12:14:27,714 INFO L137 encePairwiseOnDemand]: 319/326 looper letters, 52 selfloop transitions, 6 changer transitions 1/256 dead transitions. [2022-11-20 12:14:27,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 256 transitions, 690 flow [2022-11-20 12:14:27,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:14:27,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:14:27,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1520 transitions. [2022-11-20 12:14:27,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7770961145194274 [2022-11-20 12:14:27,720 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1520 transitions. [2022-11-20 12:14:27,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1520 transitions. [2022-11-20 12:14:27,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:27,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1520 transitions. [2022-11-20 12:14:27,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 253.33333333333334) internal successors, (1520), 6 states have internal predecessors, (1520), 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) [2022-11-20 12:14:27,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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) [2022-11-20 12:14:27,730 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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) [2022-11-20 12:14:27,730 INFO L175 Difference]: Start difference. First operand has 248 places, 246 transitions, 539 flow. Second operand 6 states and 1520 transitions. [2022-11-20 12:14:27,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 256 transitions, 690 flow [2022-11-20 12:14:27,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 256 transitions, 680 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:14:27,741 INFO L231 Difference]: Finished difference. Result has 250 places, 244 transitions, 539 flow [2022-11-20 12:14:27,742 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=539, PETRI_PLACES=250, PETRI_TRANSITIONS=244} [2022-11-20 12:14:27,743 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -49 predicate places. [2022-11-20 12:14:27,744 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 244 transitions, 539 flow [2022-11-20 12:14:27,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.33333333333334) internal successors, (1472), 6 states have internal predecessors, (1472), 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) [2022-11-20 12:14:27,745 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:27,745 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] [2022-11-20 12:14:27,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:14:27,745 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:27,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:27,747 INFO L85 PathProgramCache]: Analyzing trace with hash 179155805, now seen corresponding path program 1 times [2022-11-20 12:14:27,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:27,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302506337] [2022-11-20 12:14:27,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:27,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:27,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:27,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302506337] [2022-11-20 12:14:27,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302506337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:27,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:27,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:27,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413989743] [2022-11-20 12:14:27,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:27,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:27,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:27,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:27,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:27,806 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 326 [2022-11-20 12:14:27,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 244 transitions, 539 flow. Second operand has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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) [2022-11-20 12:14:27,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:27,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 326 [2022-11-20 12:14:27,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:28,172 INFO L130 PetriNetUnfolder]: 243/1282 cut-off events. [2022-11-20 12:14:28,172 INFO L131 PetriNetUnfolder]: For 280/328 co-relation queries the response was YES. [2022-11-20 12:14:28,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2006 conditions, 1282 events. 243/1282 cut-off events. For 280/328 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 7884 event pairs, 128 based on Foata normal form. 0/1165 useless extension candidates. Maximal degree in co-relation 1955. Up to 292 conditions per place. [2022-11-20 12:14:28,184 INFO L137 encePairwiseOnDemand]: 323/326 looper letters, 32 selfloop transitions, 2 changer transitions 0/256 dead transitions. [2022-11-20 12:14:28,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 256 transitions, 659 flow [2022-11-20 12:14:28,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:28,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:14:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 840 transitions. [2022-11-20 12:14:28,188 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8588957055214724 [2022-11-20 12:14:28,188 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 840 transitions. [2022-11-20 12:14:28,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 840 transitions. [2022-11-20 12:14:28,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:28,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 840 transitions. [2022-11-20 12:14:28,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 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) [2022-11-20 12:14:28,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:28,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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) [2022-11-20 12:14:28,196 INFO L175 Difference]: Start difference. First operand has 250 places, 244 transitions, 539 flow. Second operand 3 states and 840 transitions. [2022-11-20 12:14:28,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 256 transitions, 659 flow [2022-11-20 12:14:28,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 256 transitions, 648 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:14:28,203 INFO L231 Difference]: Finished difference. Result has 247 places, 244 transitions, 538 flow [2022-11-20 12:14:28,203 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=247, PETRI_TRANSITIONS=244} [2022-11-20 12:14:28,204 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -52 predicate places. [2022-11-20 12:14:28,204 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 244 transitions, 538 flow [2022-11-20 12:14:28,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 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) [2022-11-20 12:14:28,205 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:28,205 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, 1] [2022-11-20 12:14:28,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:14:28,206 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:28,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:28,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1658940235, now seen corresponding path program 1 times [2022-11-20 12:14:28,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:28,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752716117] [2022-11-20 12:14:28,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:28,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:28,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:28,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:28,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752716117] [2022-11-20 12:14:28,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752716117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:28,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:28,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:14:28,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385394229] [2022-11-20 12:14:28,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:28,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:14:28,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:28,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:14:28,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:14:28,983 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 326 [2022-11-20 12:14:28,986 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 244 transitions, 538 flow. Second operand has 6 states, 6 states have (on average 243.0) internal successors, (1458), 6 states have internal predecessors, (1458), 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) [2022-11-20 12:14:28,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:28,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 326 [2022-11-20 12:14:28,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:30,285 INFO L130 PetriNetUnfolder]: 1455/3243 cut-off events. [2022-11-20 12:14:30,286 INFO L131 PetriNetUnfolder]: For 1833/1929 co-relation queries the response was YES. [2022-11-20 12:14:30,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7347 conditions, 3243 events. 1455/3243 cut-off events. For 1833/1929 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 20388 event pairs, 227 based on Foata normal form. 52/3110 useless extension candidates. Maximal degree in co-relation 7293. Up to 886 conditions per place. [2022-11-20 12:14:30,310 INFO L137 encePairwiseOnDemand]: 321/326 looper letters, 96 selfloop transitions, 4 changer transitions 0/295 dead transitions. [2022-11-20 12:14:30,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 295 transitions, 972 flow [2022-11-20 12:14:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:14:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:14:30,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1517 transitions. [2022-11-20 12:14:30,315 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7755623721881391 [2022-11-20 12:14:30,315 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1517 transitions. [2022-11-20 12:14:30,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1517 transitions. [2022-11-20 12:14:30,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:30,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1517 transitions. [2022-11-20 12:14:30,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 252.83333333333334) internal successors, (1517), 6 states have internal predecessors, (1517), 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) [2022-11-20 12:14:30,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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) [2022-11-20 12:14:30,324 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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) [2022-11-20 12:14:30,324 INFO L175 Difference]: Start difference. First operand has 247 places, 244 transitions, 538 flow. Second operand 6 states and 1517 transitions. [2022-11-20 12:14:30,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 295 transitions, 972 flow [2022-11-20 12:14:30,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 295 transitions, 966 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:14:30,331 INFO L231 Difference]: Finished difference. Result has 250 places, 243 transitions, 542 flow [2022-11-20 12:14:30,333 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=542, PETRI_PLACES=250, PETRI_TRANSITIONS=243} [2022-11-20 12:14:30,334 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -49 predicate places. [2022-11-20 12:14:30,334 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 243 transitions, 542 flow [2022-11-20 12:14:30,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 243.0) internal successors, (1458), 6 states have internal predecessors, (1458), 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) [2022-11-20 12:14:30,335 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:30,335 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:14:30,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:14:30,336 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:30,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:30,336 INFO L85 PathProgramCache]: Analyzing trace with hash 783219224, now seen corresponding path program 1 times [2022-11-20 12:14:30,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:30,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746688514] [2022-11-20 12:14:30,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:30,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:30,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:30,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:30,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746688514] [2022-11-20 12:14:30,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746688514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:30,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:30,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:14:30,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642678423] [2022-11-20 12:14:30,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:30,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:14:30,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:30,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:14:30,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:14:30,939 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 326 [2022-11-20 12:14:30,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 243 transitions, 542 flow. Second operand has 6 states, 6 states have (on average 244.33333333333334) internal successors, (1466), 6 states have internal predecessors, (1466), 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) [2022-11-20 12:14:30,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:30,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 326 [2022-11-20 12:14:30,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:31,843 INFO L130 PetriNetUnfolder]: 1306/3196 cut-off events. [2022-11-20 12:14:31,843 INFO L131 PetriNetUnfolder]: For 1795/1843 co-relation queries the response was YES. [2022-11-20 12:14:31,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7119 conditions, 3196 events. 1306/3196 cut-off events. For 1795/1843 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 20945 event pairs, 762 based on Foata normal form. 0/2969 useless extension candidates. Maximal degree in co-relation 7065. Up to 1703 conditions per place. [2022-11-20 12:14:31,873 INFO L137 encePairwiseOnDemand]: 321/326 looper letters, 67 selfloop transitions, 4 changer transitions 0/266 dead transitions. [2022-11-20 12:14:31,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 266 transitions, 786 flow [2022-11-20 12:14:31,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:14:31,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:14:31,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1504 transitions. [2022-11-20 12:14:31,879 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7689161554192229 [2022-11-20 12:14:31,879 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1504 transitions. [2022-11-20 12:14:31,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1504 transitions. [2022-11-20 12:14:31,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:31,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1504 transitions. [2022-11-20 12:14:31,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 250.66666666666666) internal successors, (1504), 6 states have internal predecessors, (1504), 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) [2022-11-20 12:14:31,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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) [2022-11-20 12:14:31,889 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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) [2022-11-20 12:14:31,890 INFO L175 Difference]: Start difference. First operand has 250 places, 243 transitions, 542 flow. Second operand 6 states and 1504 transitions. [2022-11-20 12:14:31,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 266 transitions, 786 flow [2022-11-20 12:14:31,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 266 transitions, 779 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:14:31,898 INFO L231 Difference]: Finished difference. Result has 250 places, 242 transitions, 541 flow [2022-11-20 12:14:31,899 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=541, PETRI_PLACES=250, PETRI_TRANSITIONS=242} [2022-11-20 12:14:31,899 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -49 predicate places. [2022-11-20 12:14:31,899 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 242 transitions, 541 flow [2022-11-20 12:14:31,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.33333333333334) internal successors, (1466), 6 states have internal predecessors, (1466), 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) [2022-11-20 12:14:31,900 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:14:31,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:14:31,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 12:14:31,901 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2022-11-20 12:14:31,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:31,902 INFO L85 PathProgramCache]: Analyzing trace with hash -2039251908, now seen corresponding path program 1 times [2022-11-20 12:14:31,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:14:31,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294485811] [2022-11-20 12:14:31,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:31,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:14:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:14:32,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:14:32,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294485811] [2022-11-20 12:14:32,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294485811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:32,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:32,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:14:32,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880811214] [2022-11-20 12:14:32,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:32,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:14:32,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:14:32,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:14:32,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:14:32,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 326 [2022-11-20 12:14:32,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 242 transitions, 541 flow. Second operand has 6 states, 6 states have (on average 245.66666666666666) internal successors, (1474), 6 states have internal predecessors, (1474), 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) [2022-11-20 12:14:32,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:14:32,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 326 [2022-11-20 12:14:32,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:14:33,397 INFO L130 PetriNetUnfolder]: 1321/3187 cut-off events. [2022-11-20 12:14:33,397 INFO L131 PetriNetUnfolder]: For 1600/1616 co-relation queries the response was YES. [2022-11-20 12:14:33,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7002 conditions, 3187 events. 1321/3187 cut-off events. For 1600/1616 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 20799 event pairs, 890 based on Foata normal form. 4/3028 useless extension candidates. Maximal degree in co-relation 6948. Up to 1999 conditions per place. [2022-11-20 12:14:33,420 INFO L137 encePairwiseOnDemand]: 321/326 looper letters, 0 selfloop transitions, 0 changer transitions 249/249 dead transitions. [2022-11-20 12:14:33,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 249 transitions, 695 flow [2022-11-20 12:14:33,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:14:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:14:33,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1491 transitions. [2022-11-20 12:14:33,424 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7622699386503068 [2022-11-20 12:14:33,425 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1491 transitions. [2022-11-20 12:14:33,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1491 transitions. [2022-11-20 12:14:33,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:14:33,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1491 transitions. [2022-11-20 12:14:33,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 248.5) internal successors, (1491), 6 states have internal predecessors, (1491), 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) [2022-11-20 12:14:33,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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) [2022-11-20 12:14:33,435 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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) [2022-11-20 12:14:33,435 INFO L175 Difference]: Start difference. First operand has 250 places, 242 transitions, 541 flow. Second operand 6 states and 1491 transitions. [2022-11-20 12:14:33,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 249 transitions, 695 flow [2022-11-20 12:14:33,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 249 transitions, 688 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:14:33,442 INFO L231 Difference]: Finished difference. Result has 250 places, 0 transitions, 0 flow [2022-11-20 12:14:33,442 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=250, PETRI_TRANSITIONS=0} [2022-11-20 12:14:33,443 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -49 predicate places. [2022-11-20 12:14:33,444 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 0 transitions, 0 flow [2022-11-20 12:14:33,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.66666666666666) internal successors, (1474), 6 states have internal predecessors, (1474), 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) [2022-11-20 12:14:33,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (84 of 85 remaining) [2022-11-20 12:14:33,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (83 of 85 remaining) [2022-11-20 12:14:33,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (82 of 85 remaining) [2022-11-20 12:14:33,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (81 of 85 remaining) [2022-11-20 12:14:33,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (80 of 85 remaining) [2022-11-20 12:14:33,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (79 of 85 remaining) [2022-11-20 12:14:33,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (78 of 85 remaining) [2022-11-20 12:14:33,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (77 of 85 remaining) [2022-11-20 12:14:33,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (76 of 85 remaining) [2022-11-20 12:14:33,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (75 of 85 remaining) [2022-11-20 12:14:33,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (74 of 85 remaining) [2022-11-20 12:14:33,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (73 of 85 remaining) [2022-11-20 12:14:33,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (72 of 85 remaining) [2022-11-20 12:14:33,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (71 of 85 remaining) [2022-11-20 12:14:33,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (70 of 85 remaining) [2022-11-20 12:14:33,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (69 of 85 remaining) [2022-11-20 12:14:33,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (68 of 85 remaining) [2022-11-20 12:14:33,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (67 of 85 remaining) [2022-11-20 12:14:33,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (66 of 85 remaining) [2022-11-20 12:14:33,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (65 of 85 remaining) [2022-11-20 12:14:33,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (64 of 85 remaining) [2022-11-20 12:14:33,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (63 of 85 remaining) [2022-11-20 12:14:33,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (62 of 85 remaining) [2022-11-20 12:14:33,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (61 of 85 remaining) [2022-11-20 12:14:33,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (60 of 85 remaining) [2022-11-20 12:14:33,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (59 of 85 remaining) [2022-11-20 12:14:33,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (58 of 85 remaining) [2022-11-20 12:14:33,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (57 of 85 remaining) [2022-11-20 12:14:33,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (56 of 85 remaining) [2022-11-20 12:14:33,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (55 of 85 remaining) [2022-11-20 12:14:33,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (54 of 85 remaining) [2022-11-20 12:14:33,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (53 of 85 remaining) [2022-11-20 12:14:33,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (52 of 85 remaining) [2022-11-20 12:14:33,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (51 of 85 remaining) [2022-11-20 12:14:33,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (50 of 85 remaining) [2022-11-20 12:14:33,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (49 of 85 remaining) [2022-11-20 12:14:33,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (48 of 85 remaining) [2022-11-20 12:14:33,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (47 of 85 remaining) [2022-11-20 12:14:33,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (46 of 85 remaining) [2022-11-20 12:14:33,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (45 of 85 remaining) [2022-11-20 12:14:33,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (44 of 85 remaining) [2022-11-20 12:14:33,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (43 of 85 remaining) [2022-11-20 12:14:33,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (42 of 85 remaining) [2022-11-20 12:14:33,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (41 of 85 remaining) [2022-11-20 12:14:33,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (40 of 85 remaining) [2022-11-20 12:14:33,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (39 of 85 remaining) [2022-11-20 12:14:33,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (38 of 85 remaining) [2022-11-20 12:14:33,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (37 of 85 remaining) [2022-11-20 12:14:33,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (36 of 85 remaining) [2022-11-20 12:14:33,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (35 of 85 remaining) [2022-11-20 12:14:33,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (34 of 85 remaining) [2022-11-20 12:14:33,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (33 of 85 remaining) [2022-11-20 12:14:33,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (32 of 85 remaining) [2022-11-20 12:14:33,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 85 remaining) [2022-11-20 12:14:33,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 85 remaining) [2022-11-20 12:14:33,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 85 remaining) [2022-11-20 12:14:33,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 85 remaining) [2022-11-20 12:14:33,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 85 remaining) [2022-11-20 12:14:33,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 85 remaining) [2022-11-20 12:14:33,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 85 remaining) [2022-11-20 12:14:33,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 85 remaining) [2022-11-20 12:14:33,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (23 of 85 remaining) [2022-11-20 12:14:33,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (22 of 85 remaining) [2022-11-20 12:14:33,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (21 of 85 remaining) [2022-11-20 12:14:33,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (20 of 85 remaining) [2022-11-20 12:14:33,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (19 of 85 remaining) [2022-11-20 12:14:33,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (18 of 85 remaining) [2022-11-20 12:14:33,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (17 of 85 remaining) [2022-11-20 12:14:33,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (16 of 85 remaining) [2022-11-20 12:14:33,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (15 of 85 remaining) [2022-11-20 12:14:33,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (14 of 85 remaining) [2022-11-20 12:14:33,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (13 of 85 remaining) [2022-11-20 12:14:33,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (12 of 85 remaining) [2022-11-20 12:14:33,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (11 of 85 remaining) [2022-11-20 12:14:33,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (10 of 85 remaining) [2022-11-20 12:14:33,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (9 of 85 remaining) [2022-11-20 12:14:33,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (8 of 85 remaining) [2022-11-20 12:14:33,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (7 of 85 remaining) [2022-11-20 12:14:33,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (6 of 85 remaining) [2022-11-20 12:14:33,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (5 of 85 remaining) [2022-11-20 12:14:33,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (4 of 85 remaining) [2022-11-20 12:14:33,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (3 of 85 remaining) [2022-11-20 12:14:33,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (2 of 85 remaining) [2022-11-20 12:14:33,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (1 of 85 remaining) [2022-11-20 12:14:33,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 85 remaining) [2022-11-20 12:14:33,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 12:14:33,466 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:14:33,473 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:14:33,473 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:14:33,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:14:33 BasicIcfg [2022-11-20 12:14:33,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:14:33,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:14:33,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:14:33,481 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:14:33,482 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:14:20" (3/4) ... [2022-11-20 12:14:33,485 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:14:33,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 12:14:33,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 12:14:33,491 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-20 12:14:33,508 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-20 12:14:33,509 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 12:14:33,509 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:14:33,510 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:14:33,587 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:14:33,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:14:33,588 INFO L158 Benchmark]: Toolchain (without parser) took 15513.47ms. Allocated memory was 153.1MB in the beginning and 476.1MB in the end (delta: 323.0MB). Free memory was 110.1MB in the beginning and 256.9MB in the end (delta: -146.8MB). Peak memory consumption was 176.7MB. Max. memory is 16.1GB. [2022-11-20 12:14:33,588 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 153.1MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:14:33,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.22ms. Allocated memory is still 153.1MB. Free memory was 110.1MB in the beginning and 97.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:14:33,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.58ms. Allocated memory is still 153.1MB. Free memory was 97.0MB in the beginning and 94.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:14:33,589 INFO L158 Benchmark]: Boogie Preprocessor took 104.85ms. Allocated memory is still 153.1MB. Free memory was 94.3MB in the beginning and 91.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:14:33,590 INFO L158 Benchmark]: RCFGBuilder took 1426.80ms. Allocated memory is still 153.1MB. Free memory was 91.8MB in the beginning and 104.3MB in the end (delta: -12.5MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. [2022-11-20 12:14:33,590 INFO L158 Benchmark]: TraceAbstraction took 13435.85ms. Allocated memory was 153.1MB in the beginning and 476.1MB in the end (delta: 323.0MB). Free memory was 103.6MB in the beginning and 261.1MB in the end (delta: -157.5MB). Peak memory consumption was 328.4MB. Max. memory is 16.1GB. [2022-11-20 12:14:33,591 INFO L158 Benchmark]: Witness Printer took 106.40ms. Allocated memory is still 476.1MB. Free memory was 261.1MB in the beginning and 256.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:14:33,594 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 153.1MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.22ms. Allocated memory is still 153.1MB. Free memory was 110.1MB in the beginning and 97.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.58ms. Allocated memory is still 153.1MB. Free memory was 97.0MB in the beginning and 94.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.85ms. Allocated memory is still 153.1MB. Free memory was 94.3MB in the beginning and 91.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1426.80ms. Allocated memory is still 153.1MB. Free memory was 91.8MB in the beginning and 104.3MB in the end (delta: -12.5MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. * TraceAbstraction took 13435.85ms. Allocated memory was 153.1MB in the beginning and 476.1MB in the end (delta: 323.0MB). Free memory was 103.6MB in the beginning and 261.1MB in the end (delta: -157.5MB). Peak memory consumption was 328.4MB. Max. memory is 16.1GB. * Witness Printer took 106.40ms. Allocated memory is still 476.1MB. Free memory was 261.1MB in the beginning and 256.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 110]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 112]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 114]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 374 locations, 85 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.2s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 165 mSDsluCounter, 208 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 136 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1131 IncrementalHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 136 mSolverCounterUnsat, 208 mSDtfsCounter, 1131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=624occurred in iteration=0, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 1800 NumberOfCodeBlocks, 1800 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1781 ConstructedInterpolants, 0 QuantifiedInterpolants, 2248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 53 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:14:33,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7fa820-63d3-4f5c-b6cd-7f2911dae3db/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE