./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.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_67e0e2fe-5df6-4acb-9714-7e18104e669e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e0e2fe-5df6-4acb-9714-7e18104e669e/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_67e0e2fe-5df6-4acb-9714-7e18104e669e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e0e2fe-5df6-4acb-9714-7e18104e669e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e0e2fe-5df6-4acb-9714-7e18104e669e/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_67e0e2fe-5df6-4acb-9714-7e18104e669e/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 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 --- 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 09:28:02,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:28:02,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:28:02,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:28:02,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:28:02,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:28:02,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:28:02,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:28:02,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:28:02,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:28:02,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:28:02,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:28:02,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:28:02,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:28:02,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:28:02,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:28:02,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:28:02,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:28:02,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:28:02,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:28:02,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:28:02,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:28:02,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:28:02,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:28:02,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:28:02,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:28:02,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:28:02,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:28:02,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:28:02,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:28:02,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:28:02,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:28:02,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:28:02,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:28:02,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:28:02,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:28:02,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:28:02,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:28:02,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:28:02,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:28:02,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:28:02,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e0e2fe-5df6-4acb-9714-7e18104e669e/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:28:02,318 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:28:02,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:28:02,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:28:02,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:28:02,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:28:02,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:28:02,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:28:02,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:28:02,322 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:28:02,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:28:02,323 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:28:02,324 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:28:02,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:28:02,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:28:02,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:28:02,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:28:02,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:28:02,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:28:02,325 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:28:02,325 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:28:02,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:28:02,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:28:02,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:28:02,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:28:02,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:28:02,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:28:02,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:02,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:28:02,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:28:02,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:28:02,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:28:02,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:28:02,328 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:28:02,328 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:28:02,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:28:02,329 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_67e0e2fe-5df6-4acb-9714-7e18104e669e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e0e2fe-5df6-4acb-9714-7e18104e669e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 [2022-11-20 09:28:02,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:28:02,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:28:02,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:28:02,665 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:28:02,666 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:28:02,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e0e2fe-5df6-4acb-9714-7e18104e669e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2022-11-20 09:28:05,647 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:28:05,853 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:28:05,853 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e0e2fe-5df6-4acb-9714-7e18104e669e/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2022-11-20 09:28:05,861 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e0e2fe-5df6-4acb-9714-7e18104e669e/bin/uautomizer-ug76WZFUDN/data/c76d7dbe2/e10baad0b2a54924a501959cdb60a291/FLAG02f439a9b [2022-11-20 09:28:05,883 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e0e2fe-5df6-4acb-9714-7e18104e669e/bin/uautomizer-ug76WZFUDN/data/c76d7dbe2/e10baad0b2a54924a501959cdb60a291 [2022-11-20 09:28:05,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:28:05,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:28:05,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:05,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:28:05,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:28:05,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:05" (1/1) ... [2022-11-20 09:28:05,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@305959ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:05, skipping insertion in model container [2022-11-20 09:28:05,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:05" (1/1) ... [2022-11-20 09:28:05,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:28:05,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:28:06,347 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_67e0e2fe-5df6-4acb-9714-7e18104e669e/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2022-11-20 09:28:06,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:06,397 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:28:06,475 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_67e0e2fe-5df6-4acb-9714-7e18104e669e/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2022-11-20 09:28:06,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:06,510 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:28:06,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:06 WrapperNode [2022-11-20 09:28:06,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:06,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:06,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:28:06,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:28:06,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:06" (1/1) ... [2022-11-20 09:28:06,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:06" (1/1) ... [2022-11-20 09:28:06,593 INFO L138 Inliner]: procedures = 28, calls = 80, calls flagged for inlining = 26, calls inlined = 32, statements flattened = 819 [2022-11-20 09:28:06,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:06,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:28:06,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:28:06,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:28:06,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:06" (1/1) ... [2022-11-20 09:28:06,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:06" (1/1) ... [2022-11-20 09:28:06,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:06" (1/1) ... [2022-11-20 09:28:06,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:06" (1/1) ... [2022-11-20 09:28:06,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:06" (1/1) ... [2022-11-20 09:28:06,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:06" (1/1) ... [2022-11-20 09:28:06,656 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:06" (1/1) ... [2022-11-20 09:28:06,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:06" (1/1) ... [2022-11-20 09:28:06,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:28:06,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:28:06,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:28:06,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:28:06,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:06" (1/1) ... [2022-11-20 09:28:06,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:06,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e0e2fe-5df6-4acb-9714-7e18104e669e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:06,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e0e2fe-5df6-4acb-9714-7e18104e669e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:06,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e0e2fe-5df6-4acb-9714-7e18104e669e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:28:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:28:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:28:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:28:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:28:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:28:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:28:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 09:28:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 09:28:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 09:28:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 09:28:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 09:28:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 09:28:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:28:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 09:28:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 09:28:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:28:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:28:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:28:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:28:06,770 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 09:28:06,938 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:28:06,952 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:28:08,238 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:28:09,260 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:28:09,260 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-20 09:28:09,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:09 BoogieIcfgContainer [2022-11-20 09:28:09,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:28:09,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:28:09,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:28:09,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:28:09,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:28:05" (1/3) ... [2022-11-20 09:28:09,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78444ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:09, skipping insertion in model container [2022-11-20 09:28:09,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:06" (2/3) ... [2022-11-20 09:28:09,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78444ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:09, skipping insertion in model container [2022-11-20 09:28:09,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:09" (3/3) ... [2022-11-20 09:28:09,279 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2022-11-20 09:28:09,289 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:28:09,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:28:09,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 130 error locations. [2022-11-20 09:28:09,301 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:28:09,570 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 09:28:09,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 785 places, 816 transitions, 1656 flow [2022-11-20 09:28:10,055 INFO L130 PetriNetUnfolder]: 41/813 cut-off events. [2022-11-20 09:28:10,056 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 09:28:10,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 813 events. 41/813 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1537 event pairs, 0 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 565. Up to 2 conditions per place. [2022-11-20 09:28:10,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 785 places, 816 transitions, 1656 flow [2022-11-20 09:28:10,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 763 places, 793 transitions, 1604 flow [2022-11-20 09:28:10,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:28:10,124 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;@23cea4a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:28:10,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 225 error locations. [2022-11-20 09:28:10,130 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-11-20 09:28:10,130 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:28:10,131 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:10,132 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] [2022-11-20 09:28:10,133 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:10,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:10,140 INFO L85 PathProgramCache]: Analyzing trace with hash 886127106, now seen corresponding path program 1 times [2022-11-20 09:28:10,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:10,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272744938] [2022-11-20 09:28:10,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:10,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:10,452 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 09:28:10,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:10,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272744938] [2022-11-20 09:28:10,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272744938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:10,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:10,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:10,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408641948] [2022-11-20 09:28:10,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:10,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:10,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:10,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:10,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:10,506 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 720 out of 816 [2022-11-20 09:28:10,513 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 763 places, 793 transitions, 1604 flow. Second operand has 3 states, 3 states have (on average 721.3333333333334) internal successors, (2164), 3 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states 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 09:28:10,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:10,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 720 of 816 [2022-11-20 09:28:10,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:11,124 INFO L130 PetriNetUnfolder]: 38/845 cut-off events. [2022-11-20 09:28:11,125 INFO L131 PetriNetUnfolder]: For 24/29 co-relation queries the response was YES. [2022-11-20 09:28:11,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 845 events. 38/845 cut-off events. For 24/29 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1980 event pairs, 12 based on Foata normal form. 52/756 useless extension candidates. Maximal degree in co-relation 571. Up to 47 conditions per place. [2022-11-20 09:28:11,137 INFO L137 encePairwiseOnDemand]: 736/816 looper letters, 14 selfloop transitions, 2 changer transitions 12/715 dead transitions. [2022-11-20 09:28:11,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 713 places, 715 transitions, 1480 flow [2022-11-20 09:28:11,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:11,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:11,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2254 transitions. [2022-11-20 09:28:11,158 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.920751633986928 [2022-11-20 09:28:11,159 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2254 transitions. [2022-11-20 09:28:11,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2254 transitions. [2022-11-20 09:28:11,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:11,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2254 transitions. [2022-11-20 09:28:11,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 751.3333333333334) internal successors, (2254), 3 states have internal predecessors, (2254), 0 states have call successors, (0), 0 states 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 09:28:11,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:11,187 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:11,189 INFO L175 Difference]: Start difference. First operand has 763 places, 793 transitions, 1604 flow. Second operand 3 states and 2254 transitions. [2022-11-20 09:28:11,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 713 places, 715 transitions, 1480 flow [2022-11-20 09:28:11,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 707 places, 715 transitions, 1468 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 09:28:11,209 INFO L231 Difference]: Finished difference. Result has 707 places, 703 transitions, 1416 flow [2022-11-20 09:28:11,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1436, PETRI_DIFFERENCE_MINUEND_PLACES=705, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=713, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1416, PETRI_PLACES=707, PETRI_TRANSITIONS=703} [2022-11-20 09:28:11,215 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -56 predicate places. [2022-11-20 09:28:11,216 INFO L495 AbstractCegarLoop]: Abstraction has has 707 places, 703 transitions, 1416 flow [2022-11-20 09:28:11,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 721.3333333333334) internal successors, (2164), 3 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states 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 09:28:11,217 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:11,218 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 09:28:11,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:28:11,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:11,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:11,219 INFO L85 PathProgramCache]: Analyzing trace with hash 564247477, now seen corresponding path program 1 times [2022-11-20 09:28:11,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:11,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879266893] [2022-11-20 09:28:11,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:11,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:11,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:11,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:11,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879266893] [2022-11-20 09:28:11,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879266893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:11,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:11,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:11,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283402890] [2022-11-20 09:28:11,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:11,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:11,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:11,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:11,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:11,295 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 705 out of 816 [2022-11-20 09:28:11,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 707 places, 703 transitions, 1416 flow. Second operand has 3 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states 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 09:28:11,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:11,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 705 of 816 [2022-11-20 09:28:11,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:11,949 INFO L130 PetriNetUnfolder]: 162/1148 cut-off events. [2022-11-20 09:28:11,949 INFO L131 PetriNetUnfolder]: For 5/17 co-relation queries the response was YES. [2022-11-20 09:28:11,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1469 conditions, 1148 events. 162/1148 cut-off events. For 5/17 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4507 event pairs, 108 based on Foata normal form. 0/975 useless extension candidates. Maximal degree in co-relation 1423. Up to 258 conditions per place. [2022-11-20 09:28:12,014 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 29 selfloop transitions, 2 changer transitions 0/702 dead transitions. [2022-11-20 09:28:12,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 696 places, 702 transitions, 1476 flow [2022-11-20 09:28:12,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:12,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:12,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2147 transitions. [2022-11-20 09:28:12,020 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8770424836601307 [2022-11-20 09:28:12,020 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2147 transitions. [2022-11-20 09:28:12,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2147 transitions. [2022-11-20 09:28:12,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:12,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2147 transitions. [2022-11-20 09:28:12,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 715.6666666666666) internal successors, (2147), 3 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states 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 09:28:12,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:12,034 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:12,035 INFO L175 Difference]: Start difference. First operand has 707 places, 703 transitions, 1416 flow. Second operand 3 states and 2147 transitions. [2022-11-20 09:28:12,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 696 places, 702 transitions, 1476 flow [2022-11-20 09:28:12,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 694 places, 702 transitions, 1472 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:12,047 INFO L231 Difference]: Finished difference. Result has 694 places, 702 transitions, 1414 flow [2022-11-20 09:28:12,049 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1410, PETRI_DIFFERENCE_MINUEND_PLACES=692, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=702, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=700, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1414, PETRI_PLACES=694, PETRI_TRANSITIONS=702} [2022-11-20 09:28:12,049 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -69 predicate places. [2022-11-20 09:28:12,050 INFO L495 AbstractCegarLoop]: Abstraction has has 694 places, 702 transitions, 1414 flow [2022-11-20 09:28:12,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states 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 09:28:12,051 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:12,051 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] [2022-11-20 09:28:12,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:28:12,052 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:12,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:12,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1043351597, now seen corresponding path program 1 times [2022-11-20 09:28:12,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:12,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146283232] [2022-11-20 09:28:12,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:12,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,109 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 09:28:12,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:12,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146283232] [2022-11-20 09:28:12,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146283232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:12,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:12,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:12,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699497528] [2022-11-20 09:28:12,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:12,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:12,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:12,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:12,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:12,114 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 708 out of 816 [2022-11-20 09:28:12,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 694 places, 702 transitions, 1414 flow. Second operand has 3 states, 3 states have (on average 709.3333333333334) internal successors, (2128), 3 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states 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 09:28:12,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:12,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 708 of 816 [2022-11-20 09:28:12,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:12,657 INFO L130 PetriNetUnfolder]: 132/1088 cut-off events. [2022-11-20 09:28:12,657 INFO L131 PetriNetUnfolder]: For 6/16 co-relation queries the response was YES. [2022-11-20 09:28:12,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 1088 events. 132/1088 cut-off events. For 6/16 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4032 event pairs, 60 based on Foata normal form. 0/939 useless extension candidates. Maximal degree in co-relation 1288. Up to 151 conditions per place. [2022-11-20 09:28:12,676 INFO L137 encePairwiseOnDemand]: 809/816 looper letters, 26 selfloop transitions, 3 changer transitions 0/703 dead transitions. [2022-11-20 09:28:12,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 692 places, 703 transitions, 1476 flow [2022-11-20 09:28:12,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:12,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:12,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2157 transitions. [2022-11-20 09:28:12,682 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8811274509803921 [2022-11-20 09:28:12,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2157 transitions. [2022-11-20 09:28:12,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2157 transitions. [2022-11-20 09:28:12,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:12,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2157 transitions. [2022-11-20 09:28:12,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 719.0) internal successors, (2157), 3 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states 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 09:28:12,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:12,697 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:12,697 INFO L175 Difference]: Start difference. First operand has 694 places, 702 transitions, 1414 flow. Second operand 3 states and 2157 transitions. [2022-11-20 09:28:12,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 692 places, 703 transitions, 1476 flow [2022-11-20 09:28:12,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 690 places, 703 transitions, 1472 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:12,710 INFO L231 Difference]: Finished difference. Result has 690 places, 698 transitions, 1408 flow [2022-11-20 09:28:12,712 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1402, PETRI_DIFFERENCE_MINUEND_PLACES=688, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=698, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1408, PETRI_PLACES=690, PETRI_TRANSITIONS=698} [2022-11-20 09:28:12,712 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -73 predicate places. [2022-11-20 09:28:12,713 INFO L495 AbstractCegarLoop]: Abstraction has has 690 places, 698 transitions, 1408 flow [2022-11-20 09:28:12,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 709.3333333333334) internal successors, (2128), 3 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states 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 09:28:12,715 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:12,715 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] [2022-11-20 09:28:12,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:28:12,715 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:12,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:12,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1700076901, now seen corresponding path program 1 times [2022-11-20 09:28:12,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:12,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036336424] [2022-11-20 09:28:12,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:12,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,789 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 09:28:12,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:12,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036336424] [2022-11-20 09:28:12,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036336424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:12,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:12,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:12,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875352019] [2022-11-20 09:28:12,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:12,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:12,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:12,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:12,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:12,794 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 690 out of 816 [2022-11-20 09:28:12,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 690 places, 698 transitions, 1408 flow. Second operand has 3 states, 3 states have (on average 691.3333333333334) internal successors, (2074), 3 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states 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 09:28:12,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:12,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 690 of 816 [2022-11-20 09:28:12,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:14,215 INFO L130 PetriNetUnfolder]: 645/2945 cut-off events. [2022-11-20 09:28:14,216 INFO L131 PetriNetUnfolder]: For 222/227 co-relation queries the response was YES. [2022-11-20 09:28:14,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3977 conditions, 2945 events. 645/2945 cut-off events. For 222/227 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 18181 event pairs, 402 based on Foata normal form. 0/2460 useless extension candidates. Maximal degree in co-relation 3609. Up to 917 conditions per place. [2022-11-20 09:28:14,249 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 44 selfloop transitions, 2 changer transitions 0/697 dead transitions. [2022-11-20 09:28:14,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 691 places, 697 transitions, 1498 flow [2022-11-20 09:28:14,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:14,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:14,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2117 transitions. [2022-11-20 09:28:14,254 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8647875816993464 [2022-11-20 09:28:14,254 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2117 transitions. [2022-11-20 09:28:14,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2117 transitions. [2022-11-20 09:28:14,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:14,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2117 transitions. [2022-11-20 09:28:14,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 705.6666666666666) internal successors, (2117), 3 states have internal predecessors, (2117), 0 states have call successors, (0), 0 states 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 09:28:14,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:14,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:14,269 INFO L175 Difference]: Start difference. First operand has 690 places, 698 transitions, 1408 flow. Second operand 3 states and 2117 transitions. [2022-11-20 09:28:14,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 691 places, 697 transitions, 1498 flow [2022-11-20 09:28:14,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 689 places, 697 transitions, 1492 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:14,282 INFO L231 Difference]: Finished difference. Result has 689 places, 697 transitions, 1404 flow [2022-11-20 09:28:14,283 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1400, PETRI_DIFFERENCE_MINUEND_PLACES=687, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1404, PETRI_PLACES=689, PETRI_TRANSITIONS=697} [2022-11-20 09:28:14,284 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -74 predicate places. [2022-11-20 09:28:14,284 INFO L495 AbstractCegarLoop]: Abstraction has has 689 places, 697 transitions, 1404 flow [2022-11-20 09:28:14,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 691.3333333333334) internal successors, (2074), 3 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states 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 09:28:14,285 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:14,286 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] [2022-11-20 09:28:14,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:28:14,286 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:14,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:14,287 INFO L85 PathProgramCache]: Analyzing trace with hash -244830580, now seen corresponding path program 1 times [2022-11-20 09:28:14,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:14,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222491052] [2022-11-20 09:28:14,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:14,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:14,358 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 09:28:14,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:14,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222491052] [2022-11-20 09:28:14,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222491052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:14,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:14,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:14,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212346560] [2022-11-20 09:28:14,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:14,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:14,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:14,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:14,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:14,364 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 714 out of 816 [2022-11-20 09:28:14,366 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 689 places, 697 transitions, 1404 flow. Second operand has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states 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 09:28:14,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:14,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 714 of 816 [2022-11-20 09:28:14,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:14,754 INFO L130 PetriNetUnfolder]: 38/820 cut-off events. [2022-11-20 09:28:14,754 INFO L131 PetriNetUnfolder]: For 5/10 co-relation queries the response was YES. [2022-11-20 09:28:14,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 888 conditions, 820 events. 38/820 cut-off events. For 5/10 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1890 event pairs, 12 based on Foata normal form. 0/704 useless extension candidates. Maximal degree in co-relation 828. Up to 53 conditions per place. [2022-11-20 09:28:14,763 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 20 selfloop transitions, 2 changer transitions 0/696 dead transitions. [2022-11-20 09:28:14,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 690 places, 696 transitions, 1446 flow [2022-11-20 09:28:14,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:14,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:14,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2165 transitions. [2022-11-20 09:28:14,769 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8843954248366013 [2022-11-20 09:28:14,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2165 transitions. [2022-11-20 09:28:14,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2165 transitions. [2022-11-20 09:28:14,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:14,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2165 transitions. [2022-11-20 09:28:14,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 721.6666666666666) internal successors, (2165), 3 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states 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 09:28:14,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:14,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:14,785 INFO L175 Difference]: Start difference. First operand has 689 places, 697 transitions, 1404 flow. Second operand 3 states and 2165 transitions. [2022-11-20 09:28:14,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 690 places, 696 transitions, 1446 flow [2022-11-20 09:28:14,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 688 places, 696 transitions, 1442 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:14,799 INFO L231 Difference]: Finished difference. Result has 688 places, 696 transitions, 1402 flow [2022-11-20 09:28:14,800 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1398, PETRI_DIFFERENCE_MINUEND_PLACES=686, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=696, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=694, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1402, PETRI_PLACES=688, PETRI_TRANSITIONS=696} [2022-11-20 09:28:14,801 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -75 predicate places. [2022-11-20 09:28:14,801 INFO L495 AbstractCegarLoop]: Abstraction has has 688 places, 696 transitions, 1402 flow [2022-11-20 09:28:14,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states 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 09:28:14,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:14,803 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] [2022-11-20 09:28:14,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:28:14,803 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:14,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:14,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1855256213, now seen corresponding path program 1 times [2022-11-20 09:28:14,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:14,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278345082] [2022-11-20 09:28:14,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:14,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:14,853 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 09:28:14,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:14,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278345082] [2022-11-20 09:28:14,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278345082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:14,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:14,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:14,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656177991] [2022-11-20 09:28:14,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:14,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:14,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:14,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:14,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:14,858 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 717 out of 816 [2022-11-20 09:28:14,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 688 places, 696 transitions, 1402 flow. Second operand has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states 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 09:28:14,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:14,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 717 of 816 [2022-11-20 09:28:14,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:15,279 INFO L130 PetriNetUnfolder]: 56/1272 cut-off events. [2022-11-20 09:28:15,279 INFO L131 PetriNetUnfolder]: For 9/13 co-relation queries the response was YES. [2022-11-20 09:28:15,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1352 conditions, 1272 events. 56/1272 cut-off events. For 9/13 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4612 event pairs, 10 based on Foata normal form. 0/1064 useless extension candidates. Maximal degree in co-relation 1284. Up to 34 conditions per place. [2022-11-20 09:28:15,356 INFO L137 encePairwiseOnDemand]: 811/816 looper letters, 22 selfloop transitions, 3 changer transitions 0/702 dead transitions. [2022-11-20 09:28:15,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 688 places, 702 transitions, 1468 flow [2022-11-20 09:28:15,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:15,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:15,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2178 transitions. [2022-11-20 09:28:15,361 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8897058823529411 [2022-11-20 09:28:15,361 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2178 transitions. [2022-11-20 09:28:15,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2178 transitions. [2022-11-20 09:28:15,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:15,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2178 transitions. [2022-11-20 09:28:15,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 726.0) internal successors, (2178), 3 states have internal predecessors, (2178), 0 states have call successors, (0), 0 states 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 09:28:15,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:15,377 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:15,377 INFO L175 Difference]: Start difference. First operand has 688 places, 696 transitions, 1402 flow. Second operand 3 states and 2178 transitions. [2022-11-20 09:28:15,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 688 places, 702 transitions, 1468 flow [2022-11-20 09:28:15,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 686 places, 702 transitions, 1464 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:15,390 INFO L231 Difference]: Finished difference. Result has 688 places, 696 transitions, 1414 flow [2022-11-20 09:28:15,391 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1394, PETRI_DIFFERENCE_MINUEND_PLACES=684, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1414, PETRI_PLACES=688, PETRI_TRANSITIONS=696} [2022-11-20 09:28:15,392 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -75 predicate places. [2022-11-20 09:28:15,392 INFO L495 AbstractCegarLoop]: Abstraction has has 688 places, 696 transitions, 1414 flow [2022-11-20 09:28:15,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states 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 09:28:15,393 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:15,394 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 09:28:15,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:28:15,394 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:15,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:15,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1819770719, now seen corresponding path program 1 times [2022-11-20 09:28:15,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:15,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305782346] [2022-11-20 09:28:15,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:15,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:15,454 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 09:28:15,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:15,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305782346] [2022-11-20 09:28:15,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305782346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:15,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:15,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:15,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165572944] [2022-11-20 09:28:15,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:15,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:15,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:15,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:15,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:15,464 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 705 out of 816 [2022-11-20 09:28:15,467 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 688 places, 696 transitions, 1414 flow. Second operand has 3 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states 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 09:28:15,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:15,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 705 of 816 [2022-11-20 09:28:15,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:16,762 INFO L130 PetriNetUnfolder]: 424/3632 cut-off events. [2022-11-20 09:28:16,763 INFO L131 PetriNetUnfolder]: For 246/274 co-relation queries the response was YES. [2022-11-20 09:28:16,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4319 conditions, 3632 events. 424/3632 cut-off events. For 246/274 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 25610 event pairs, 245 based on Foata normal form. 0/2939 useless extension candidates. Maximal degree in co-relation 2258. Up to 543 conditions per place. [2022-11-20 09:28:16,801 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 29 selfloop transitions, 2 changer transitions 0/695 dead transitions. [2022-11-20 09:28:16,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 689 places, 695 transitions, 1474 flow [2022-11-20 09:28:16,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:16,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:16,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2146 transitions. [2022-11-20 09:28:16,808 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8766339869281046 [2022-11-20 09:28:16,808 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2146 transitions. [2022-11-20 09:28:16,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2146 transitions. [2022-11-20 09:28:16,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:16,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2146 transitions. [2022-11-20 09:28:16,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states 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 09:28:16,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:16,822 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:16,823 INFO L175 Difference]: Start difference. First operand has 688 places, 696 transitions, 1414 flow. Second operand 3 states and 2146 transitions. [2022-11-20 09:28:16,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 689 places, 695 transitions, 1474 flow [2022-11-20 09:28:16,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 687 places, 695 transitions, 1468 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:16,839 INFO L231 Difference]: Finished difference. Result has 687 places, 695 transitions, 1410 flow [2022-11-20 09:28:16,840 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1406, PETRI_DIFFERENCE_MINUEND_PLACES=685, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=695, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=693, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1410, PETRI_PLACES=687, PETRI_TRANSITIONS=695} [2022-11-20 09:28:16,841 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -76 predicate places. [2022-11-20 09:28:16,841 INFO L495 AbstractCegarLoop]: Abstraction has has 687 places, 695 transitions, 1410 flow [2022-11-20 09:28:16,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states 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 09:28:16,842 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:16,843 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] [2022-11-20 09:28:16,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:28:16,843 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:16,844 INFO L85 PathProgramCache]: Analyzing trace with hash -688807574, now seen corresponding path program 1 times [2022-11-20 09:28:16,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:16,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068596423] [2022-11-20 09:28:16,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:16,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:16,893 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 09:28:16,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:16,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068596423] [2022-11-20 09:28:16,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068596423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:16,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:16,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:16,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380387592] [2022-11-20 09:28:16,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:16,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:16,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:16,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:16,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:16,899 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 717 out of 816 [2022-11-20 09:28:16,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 687 places, 695 transitions, 1410 flow. Second operand has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states 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 09:28:16,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:16,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 717 of 816 [2022-11-20 09:28:16,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:17,271 INFO L130 PetriNetUnfolder]: 46/860 cut-off events. [2022-11-20 09:28:17,272 INFO L131 PetriNetUnfolder]: For 18/28 co-relation queries the response was YES. [2022-11-20 09:28:17,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 860 events. 46/860 cut-off events. For 18/28 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2268 event pairs, 17 based on Foata normal form. 0/737 useless extension candidates. Maximal degree in co-relation 879. Up to 64 conditions per place. [2022-11-20 09:28:17,285 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 18 selfloop transitions, 2 changer transitions 0/694 dead transitions. [2022-11-20 09:28:17,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 688 places, 694 transitions, 1448 flow [2022-11-20 09:28:17,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:17,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:17,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2171 transitions. [2022-11-20 09:28:17,292 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8868464052287581 [2022-11-20 09:28:17,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2171 transitions. [2022-11-20 09:28:17,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2171 transitions. [2022-11-20 09:28:17,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:17,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2171 transitions. [2022-11-20 09:28:17,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 723.6666666666666) internal successors, (2171), 3 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states 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 09:28:17,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:17,307 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:17,307 INFO L175 Difference]: Start difference. First operand has 687 places, 695 transitions, 1410 flow. Second operand 3 states and 2171 transitions. [2022-11-20 09:28:17,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 688 places, 694 transitions, 1448 flow [2022-11-20 09:28:17,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 686 places, 694 transitions, 1444 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:17,324 INFO L231 Difference]: Finished difference. Result has 686 places, 694 transitions, 1408 flow [2022-11-20 09:28:17,325 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1404, PETRI_DIFFERENCE_MINUEND_PLACES=684, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=692, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1408, PETRI_PLACES=686, PETRI_TRANSITIONS=694} [2022-11-20 09:28:17,326 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -77 predicate places. [2022-11-20 09:28:17,326 INFO L495 AbstractCegarLoop]: Abstraction has has 686 places, 694 transitions, 1408 flow [2022-11-20 09:28:17,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states 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 09:28:17,327 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:17,327 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] [2022-11-20 09:28:17,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:28:17,328 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:17,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:17,328 INFO L85 PathProgramCache]: Analyzing trace with hash -148196107, now seen corresponding path program 1 times [2022-11-20 09:28:17,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:17,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193928616] [2022-11-20 09:28:17,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:17,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:17,377 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 09:28:17,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:17,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193928616] [2022-11-20 09:28:17,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193928616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:17,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:17,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:17,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948453700] [2022-11-20 09:28:17,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:17,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:17,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:17,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:17,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:17,383 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 714 out of 816 [2022-11-20 09:28:17,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 686 places, 694 transitions, 1408 flow. Second operand has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states 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 09:28:17,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:17,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 714 of 816 [2022-11-20 09:28:17,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:18,488 INFO L130 PetriNetUnfolder]: 164/3054 cut-off events. [2022-11-20 09:28:18,488 INFO L131 PetriNetUnfolder]: For 54/64 co-relation queries the response was YES. [2022-11-20 09:28:18,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3287 conditions, 3054 events. 164/3054 cut-off events. For 54/64 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 20025 event pairs, 74 based on Foata normal form. 0/2474 useless extension candidates. Maximal degree in co-relation 3204. Up to 184 conditions per place. [2022-11-20 09:28:18,527 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 21 selfloop transitions, 2 changer transitions 0/693 dead transitions. [2022-11-20 09:28:18,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 693 transitions, 1452 flow [2022-11-20 09:28:18,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:18,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:18,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2165 transitions. [2022-11-20 09:28:18,533 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8843954248366013 [2022-11-20 09:28:18,533 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2165 transitions. [2022-11-20 09:28:18,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2165 transitions. [2022-11-20 09:28:18,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:18,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2165 transitions. [2022-11-20 09:28:18,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 721.6666666666666) internal successors, (2165), 3 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states 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 09:28:18,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:18,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:18,547 INFO L175 Difference]: Start difference. First operand has 686 places, 694 transitions, 1408 flow. Second operand 3 states and 2165 transitions. [2022-11-20 09:28:18,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 687 places, 693 transitions, 1452 flow [2022-11-20 09:28:18,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 685 places, 693 transitions, 1448 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:18,560 INFO L231 Difference]: Finished difference. Result has 685 places, 693 transitions, 1406 flow [2022-11-20 09:28:18,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1402, PETRI_DIFFERENCE_MINUEND_PLACES=683, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1406, PETRI_PLACES=685, PETRI_TRANSITIONS=693} [2022-11-20 09:28:18,562 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -78 predicate places. [2022-11-20 09:28:18,562 INFO L495 AbstractCegarLoop]: Abstraction has has 685 places, 693 transitions, 1406 flow [2022-11-20 09:28:18,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states 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 09:28:18,563 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:18,564 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] [2022-11-20 09:28:18,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:28:18,564 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:18,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:18,566 INFO L85 PathProgramCache]: Analyzing trace with hash 2044904497, now seen corresponding path program 1 times [2022-11-20 09:28:18,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:18,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824245661] [2022-11-20 09:28:18,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:18,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,647 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 09:28:18,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:18,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824245661] [2022-11-20 09:28:18,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824245661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:18,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:18,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:18,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234816483] [2022-11-20 09:28:18,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:18,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:18,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:18,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:18,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:18,663 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 708 out of 816 [2022-11-20 09:28:18,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 685 places, 693 transitions, 1406 flow. Second operand has 3 states, 3 states have (on average 709.3333333333334) internal successors, (2128), 3 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states 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 09:28:18,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:18,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 708 of 816 [2022-11-20 09:28:18,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:19,698 INFO L130 PetriNetUnfolder]: 276/2680 cut-off events. [2022-11-20 09:28:19,698 INFO L131 PetriNetUnfolder]: For 84/94 co-relation queries the response was YES. [2022-11-20 09:28:19,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3150 conditions, 2680 events. 276/2680 cut-off events. For 84/94 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 17900 event pairs, 170 based on Foata normal form. 0/2171 useless extension candidates. Maximal degree in co-relation 3060. Up to 376 conditions per place. [2022-11-20 09:28:19,736 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 27 selfloop transitions, 2 changer transitions 0/692 dead transitions. [2022-11-20 09:28:19,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 686 places, 692 transitions, 1462 flow [2022-11-20 09:28:19,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:19,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:19,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2153 transitions. [2022-11-20 09:28:19,742 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8794934640522876 [2022-11-20 09:28:19,743 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2153 transitions. [2022-11-20 09:28:19,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2153 transitions. [2022-11-20 09:28:19,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:19,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2153 transitions. [2022-11-20 09:28:19,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 717.6666666666666) internal successors, (2153), 3 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states 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 09:28:19,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:19,756 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:19,756 INFO L175 Difference]: Start difference. First operand has 685 places, 693 transitions, 1406 flow. Second operand 3 states and 2153 transitions. [2022-11-20 09:28:19,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 686 places, 692 transitions, 1462 flow [2022-11-20 09:28:19,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 684 places, 692 transitions, 1458 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:19,768 INFO L231 Difference]: Finished difference. Result has 684 places, 692 transitions, 1404 flow [2022-11-20 09:28:19,770 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1400, PETRI_DIFFERENCE_MINUEND_PLACES=682, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=692, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=690, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1404, PETRI_PLACES=684, PETRI_TRANSITIONS=692} [2022-11-20 09:28:19,771 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -79 predicate places. [2022-11-20 09:28:19,772 INFO L495 AbstractCegarLoop]: Abstraction has has 684 places, 692 transitions, 1404 flow [2022-11-20 09:28:19,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 709.3333333333334) internal successors, (2128), 3 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states 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 09:28:19,773 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:19,773 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] [2022-11-20 09:28:19,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 09:28:19,773 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:19,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:19,774 INFO L85 PathProgramCache]: Analyzing trace with hash -968822054, now seen corresponding path program 1 times [2022-11-20 09:28:19,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:19,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771368661] [2022-11-20 09:28:19,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:19,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:19,854 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 09:28:19,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:19,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771368661] [2022-11-20 09:28:19,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771368661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:19,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:19,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:19,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737219869] [2022-11-20 09:28:19,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:19,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:19,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:19,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:19,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:19,859 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 705 out of 816 [2022-11-20 09:28:19,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 684 places, 692 transitions, 1404 flow. Second operand has 3 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states 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 09:28:19,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:19,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 705 of 816 [2022-11-20 09:28:19,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:20,776 INFO L130 PetriNetUnfolder]: 177/3325 cut-off events. [2022-11-20 09:28:20,776 INFO L131 PetriNetUnfolder]: For 54/64 co-relation queries the response was YES. [2022-11-20 09:28:20,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3567 conditions, 3325 events. 177/3325 cut-off events. For 54/64 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 22626 event pairs, 74 based on Foata normal form. 0/2686 useless extension candidates. Maximal degree in co-relation 3470. Up to 193 conditions per place. [2022-11-20 09:28:20,813 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 30 selfloop transitions, 2 changer transitions 0/691 dead transitions. [2022-11-20 09:28:20,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 685 places, 691 transitions, 1466 flow [2022-11-20 09:28:20,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:20,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:20,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2147 transitions. [2022-11-20 09:28:20,819 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8770424836601307 [2022-11-20 09:28:20,819 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2147 transitions. [2022-11-20 09:28:20,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2147 transitions. [2022-11-20 09:28:20,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:20,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2147 transitions. [2022-11-20 09:28:20,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 715.6666666666666) internal successors, (2147), 3 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states 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 09:28:20,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:20,831 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:20,832 INFO L175 Difference]: Start difference. First operand has 684 places, 692 transitions, 1404 flow. Second operand 3 states and 2147 transitions. [2022-11-20 09:28:20,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 685 places, 691 transitions, 1466 flow [2022-11-20 09:28:20,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 683 places, 691 transitions, 1462 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:20,844 INFO L231 Difference]: Finished difference. Result has 683 places, 691 transitions, 1402 flow [2022-11-20 09:28:20,845 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1398, PETRI_DIFFERENCE_MINUEND_PLACES=681, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=689, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1402, PETRI_PLACES=683, PETRI_TRANSITIONS=691} [2022-11-20 09:28:20,846 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -80 predicate places. [2022-11-20 09:28:20,846 INFO L495 AbstractCegarLoop]: Abstraction has has 683 places, 691 transitions, 1402 flow [2022-11-20 09:28:20,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states 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 09:28:20,847 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:20,847 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 09:28:20,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 09:28:20,847 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:20,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:20,848 INFO L85 PathProgramCache]: Analyzing trace with hash 191627274, now seen corresponding path program 1 times [2022-11-20 09:28:20,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:20,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970191917] [2022-11-20 09:28:20,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:20,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:20,914 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 09:28:20,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:20,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970191917] [2022-11-20 09:28:20,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970191917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:20,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:20,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:20,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483171427] [2022-11-20 09:28:20,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:20,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:20,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:20,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:20,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:20,918 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 714 out of 816 [2022-11-20 09:28:20,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 683 places, 691 transitions, 1402 flow. Second operand has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states 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 09:28:20,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:20,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 714 of 816 [2022-11-20 09:28:20,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:21,688 INFO L130 PetriNetUnfolder]: 151/2518 cut-off events. [2022-11-20 09:28:21,689 INFO L131 PetriNetUnfolder]: For 54/64 co-relation queries the response was YES. [2022-11-20 09:28:21,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2751 conditions, 2518 events. 151/2518 cut-off events. For 54/64 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 14854 event pairs, 74 based on Foata normal form. 0/2056 useless extension candidates. Maximal degree in co-relation 2647. Up to 184 conditions per place. [2022-11-20 09:28:21,713 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 21 selfloop transitions, 2 changer transitions 0/690 dead transitions. [2022-11-20 09:28:21,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 684 places, 690 transitions, 1446 flow [2022-11-20 09:28:21,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:21,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:21,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2165 transitions. [2022-11-20 09:28:21,719 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8843954248366013 [2022-11-20 09:28:21,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2165 transitions. [2022-11-20 09:28:21,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2165 transitions. [2022-11-20 09:28:21,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:21,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2165 transitions. [2022-11-20 09:28:21,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 721.6666666666666) internal successors, (2165), 3 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states 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 09:28:21,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:21,734 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:21,734 INFO L175 Difference]: Start difference. First operand has 683 places, 691 transitions, 1402 flow. Second operand 3 states and 2165 transitions. [2022-11-20 09:28:21,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 684 places, 690 transitions, 1446 flow [2022-11-20 09:28:21,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 682 places, 690 transitions, 1442 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:21,749 INFO L231 Difference]: Finished difference. Result has 682 places, 690 transitions, 1400 flow [2022-11-20 09:28:21,750 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=680, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=688, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1400, PETRI_PLACES=682, PETRI_TRANSITIONS=690} [2022-11-20 09:28:21,753 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -81 predicate places. [2022-11-20 09:28:21,753 INFO L495 AbstractCegarLoop]: Abstraction has has 682 places, 690 transitions, 1400 flow [2022-11-20 09:28:21,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states 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 09:28:21,754 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:21,754 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] [2022-11-20 09:28:21,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 09:28:21,755 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:21,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:21,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2045797410, now seen corresponding path program 1 times [2022-11-20 09:28:21,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:21,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809767062] [2022-11-20 09:28:21,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:21,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:21,813 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 09:28:21,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:21,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809767062] [2022-11-20 09:28:21,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809767062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:21,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:21,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:21,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883167825] [2022-11-20 09:28:21,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:21,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:21,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:21,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:21,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:21,818 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 717 out of 816 [2022-11-20 09:28:21,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 682 places, 690 transitions, 1400 flow. Second operand has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states 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 09:28:21,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:21,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 717 of 816 [2022-11-20 09:28:21,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:22,665 INFO L130 PetriNetUnfolder]: 138/3010 cut-off events. [2022-11-20 09:28:22,665 INFO L131 PetriNetUnfolder]: For 42/52 co-relation queries the response was YES. [2022-11-20 09:28:22,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3193 conditions, 3010 events. 138/3010 cut-off events. For 42/52 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 19744 event pairs, 55 based on Foata normal form. 0/2454 useless extension candidates. Maximal degree in co-relation 3081. Up to 139 conditions per place. [2022-11-20 09:28:22,696 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 17 selfloop transitions, 1 changer transitions 0/688 dead transitions. [2022-11-20 09:28:22,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 688 transitions, 1432 flow [2022-11-20 09:28:22,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:22,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:22,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2170 transitions. [2022-11-20 09:28:22,702 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.886437908496732 [2022-11-20 09:28:22,702 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2170 transitions. [2022-11-20 09:28:22,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2170 transitions. [2022-11-20 09:28:22,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:22,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2170 transitions. [2022-11-20 09:28:22,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 723.3333333333334) internal successors, (2170), 3 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states 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 09:28:22,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:22,716 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:22,717 INFO L175 Difference]: Start difference. First operand has 682 places, 690 transitions, 1400 flow. Second operand 3 states and 2170 transitions. [2022-11-20 09:28:22,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 682 places, 688 transitions, 1432 flow [2022-11-20 09:28:22,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 680 places, 688 transitions, 1428 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:22,732 INFO L231 Difference]: Finished difference. Result has 680 places, 688 transitions, 1394 flow [2022-11-20 09:28:22,734 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1392, PETRI_DIFFERENCE_MINUEND_PLACES=678, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=687, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1394, PETRI_PLACES=680, PETRI_TRANSITIONS=688} [2022-11-20 09:28:22,734 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -83 predicate places. [2022-11-20 09:28:22,735 INFO L495 AbstractCegarLoop]: Abstraction has has 680 places, 688 transitions, 1394 flow [2022-11-20 09:28:22,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 718.3333333333334) internal successors, (2155), 3 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states 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 09:28:22,736 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:22,736 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] [2022-11-20 09:28:22,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 09:28:22,737 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:22,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:22,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1370046255, now seen corresponding path program 1 times [2022-11-20 09:28:22,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:22,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416206111] [2022-11-20 09:28:22,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:22,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:22,805 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 09:28:22,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:22,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416206111] [2022-11-20 09:28:22,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416206111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:22,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:22,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:22,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881238012] [2022-11-20 09:28:22,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:22,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:22,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:22,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:22,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:22,811 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 711 out of 816 [2022-11-20 09:28:22,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 680 places, 688 transitions, 1394 flow. Second operand has 3 states, 3 states have (on average 712.3333333333334) internal successors, (2137), 3 states have internal predecessors, (2137), 0 states have call successors, (0), 0 states 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 09:28:22,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:22,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 711 of 816 [2022-11-20 09:28:22,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:23,725 INFO L130 PetriNetUnfolder]: 320/3048 cut-off events. [2022-11-20 09:28:23,725 INFO L131 PetriNetUnfolder]: For 126/136 co-relation queries the response was YES. [2022-11-20 09:28:23,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3553 conditions, 3048 events. 320/3048 cut-off events. For 126/136 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 20272 event pairs, 188 based on Foata normal form. 0/2488 useless extension candidates. Maximal degree in co-relation 3442. Up to 421 conditions per place. [2022-11-20 09:28:23,744 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 24 selfloop transitions, 2 changer transitions 0/687 dead transitions. [2022-11-20 09:28:23,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 681 places, 687 transitions, 1444 flow [2022-11-20 09:28:23,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:23,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:23,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2159 transitions. [2022-11-20 09:28:23,749 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8819444444444444 [2022-11-20 09:28:23,749 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2159 transitions. [2022-11-20 09:28:23,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2159 transitions. [2022-11-20 09:28:23,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:23,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2159 transitions. [2022-11-20 09:28:23,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 719.6666666666666) internal successors, (2159), 3 states have internal predecessors, (2159), 0 states have call successors, (0), 0 states 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 09:28:23,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:23,760 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:23,760 INFO L175 Difference]: Start difference. First operand has 680 places, 688 transitions, 1394 flow. Second operand 3 states and 2159 transitions. [2022-11-20 09:28:23,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 681 places, 687 transitions, 1444 flow [2022-11-20 09:28:23,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 680 places, 687 transitions, 1443 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:28:23,771 INFO L231 Difference]: Finished difference. Result has 680 places, 687 transitions, 1395 flow [2022-11-20 09:28:23,773 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1391, PETRI_DIFFERENCE_MINUEND_PLACES=678, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=685, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1395, PETRI_PLACES=680, PETRI_TRANSITIONS=687} [2022-11-20 09:28:23,773 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -83 predicate places. [2022-11-20 09:28:23,773 INFO L495 AbstractCegarLoop]: Abstraction has has 680 places, 687 transitions, 1395 flow [2022-11-20 09:28:23,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 712.3333333333334) internal successors, (2137), 3 states have internal predecessors, (2137), 0 states have call successors, (0), 0 states 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 09:28:23,774 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:23,775 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] [2022-11-20 09:28:23,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 09:28:23,775 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:23,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:23,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1122665438, now seen corresponding path program 1 times [2022-11-20 09:28:23,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:23,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992581021] [2022-11-20 09:28:23,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:23,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:24,405 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 09:28:24,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:24,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992581021] [2022-11-20 09:28:24,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992581021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:24,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:24,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:28:24,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966357402] [2022-11-20 09:28:24,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:24,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:24,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:24,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:24,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:24,411 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 816 [2022-11-20 09:28:24,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 680 places, 687 transitions, 1395 flow. Second operand has 6 states, 6 states have (on average 587.8333333333334) internal successors, (3527), 6 states have internal predecessors, (3527), 0 states have call successors, (0), 0 states 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 09:28:24,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:24,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 816 [2022-11-20 09:28:24,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:49,664 INFO L130 PetriNetUnfolder]: 29019/65835 cut-off events. [2022-11-20 09:28:49,664 INFO L131 PetriNetUnfolder]: For 5284/5284 co-relation queries the response was YES. [2022-11-20 09:28:49,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109904 conditions, 65835 events. 29019/65835 cut-off events. For 5284/5284 co-relation queries the response was YES. Maximal size of possible extension queue 1012. Compared 677009 event pairs, 24554 based on Foata normal form. 0/55087 useless extension candidates. Maximal degree in co-relation 109794. Up to 38943 conditions per place. [2022-11-20 09:28:50,084 INFO L137 encePairwiseOnDemand]: 792/816 looper letters, 128 selfloop transitions, 20 changer transitions 0/683 dead transitions. [2022-11-20 09:28:50,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 681 places, 683 transitions, 1683 flow [2022-11-20 09:28:50,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:28:50,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:28:50,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3667 transitions. [2022-11-20 09:28:50,092 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7489787581699346 [2022-11-20 09:28:50,093 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3667 transitions. [2022-11-20 09:28:50,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3667 transitions. [2022-11-20 09:28:50,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:50,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3667 transitions. [2022-11-20 09:28:50,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 611.1666666666666) internal successors, (3667), 6 states have internal predecessors, (3667), 0 states have call successors, (0), 0 states 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 09:28:50,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 816.0) internal successors, (5712), 7 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states 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 09:28:50,112 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 816.0) internal successors, (5712), 7 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states 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 09:28:50,112 INFO L175 Difference]: Start difference. First operand has 680 places, 687 transitions, 1395 flow. Second operand 6 states and 3667 transitions. [2022-11-20 09:28:50,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 681 places, 683 transitions, 1683 flow [2022-11-20 09:28:50,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 679 places, 683 transitions, 1679 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:50,126 INFO L231 Difference]: Finished difference. Result has 679 places, 683 transitions, 1423 flow [2022-11-20 09:28:50,128 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1383, PETRI_DIFFERENCE_MINUEND_PLACES=674, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1423, PETRI_PLACES=679, PETRI_TRANSITIONS=683} [2022-11-20 09:28:50,128 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -84 predicate places. [2022-11-20 09:28:50,129 INFO L495 AbstractCegarLoop]: Abstraction has has 679 places, 683 transitions, 1423 flow [2022-11-20 09:28:50,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 587.8333333333334) internal successors, (3527), 6 states have internal predecessors, (3527), 0 states have call successors, (0), 0 states 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 09:28:50,130 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:50,130 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] [2022-11-20 09:28:50,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 09:28:50,131 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:50,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:50,131 INFO L85 PathProgramCache]: Analyzing trace with hash 884959823, now seen corresponding path program 1 times [2022-11-20 09:28:50,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:50,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418410350] [2022-11-20 09:28:50,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:50,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:50,184 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 09:28:50,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:50,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418410350] [2022-11-20 09:28:50,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418410350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:50,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:50,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:50,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271993806] [2022-11-20 09:28:50,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:50,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:50,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:50,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:50,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:50,189 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 711 out of 816 [2022-11-20 09:28:50,191 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 679 places, 683 transitions, 1423 flow. Second operand has 3 states, 3 states have (on average 712.3333333333334) internal successors, (2137), 3 states have internal predecessors, (2137), 0 states have call successors, (0), 0 states 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 09:28:50,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:50,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 711 of 816 [2022-11-20 09:28:50,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:51,162 INFO L130 PetriNetUnfolder]: 190/2360 cut-off events. [2022-11-20 09:28:51,163 INFO L131 PetriNetUnfolder]: For 58/68 co-relation queries the response was YES. [2022-11-20 09:28:51,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2694 conditions, 2360 events. 190/2360 cut-off events. For 58/68 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 14808 event pairs, 105 based on Foata normal form. 0/1962 useless extension candidates. Maximal degree in co-relation 2630. Up to 245 conditions per place. [2022-11-20 09:28:51,193 INFO L137 encePairwiseOnDemand]: 811/816 looper letters, 21 selfloop transitions, 1 changer transitions 0/679 dead transitions. [2022-11-20 09:28:51,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 677 places, 679 transitions, 1459 flow [2022-11-20 09:28:51,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:51,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:51,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2158 transitions. [2022-11-20 09:28:51,200 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8815359477124183 [2022-11-20 09:28:51,200 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2158 transitions. [2022-11-20 09:28:51,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2158 transitions. [2022-11-20 09:28:51,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:51,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2158 transitions. [2022-11-20 09:28:51,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 719.3333333333334) internal successors, (2158), 3 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states 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 09:28:51,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:51,213 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:51,214 INFO L175 Difference]: Start difference. First operand has 679 places, 683 transitions, 1423 flow. Second operand 3 states and 2158 transitions. [2022-11-20 09:28:51,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 677 places, 679 transitions, 1459 flow [2022-11-20 09:28:51,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 672 places, 679 transitions, 1419 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 09:28:51,229 INFO L231 Difference]: Finished difference. Result has 672 places, 679 transitions, 1377 flow [2022-11-20 09:28:51,230 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1375, PETRI_DIFFERENCE_MINUEND_PLACES=670, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1377, PETRI_PLACES=672, PETRI_TRANSITIONS=679} [2022-11-20 09:28:51,231 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -91 predicate places. [2022-11-20 09:28:51,233 INFO L495 AbstractCegarLoop]: Abstraction has has 672 places, 679 transitions, 1377 flow [2022-11-20 09:28:51,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 712.3333333333334) internal successors, (2137), 3 states have internal predecessors, (2137), 0 states have call successors, (0), 0 states 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 09:28:51,235 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:51,235 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] [2022-11-20 09:28:51,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 09:28:51,236 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:51,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:51,238 INFO L85 PathProgramCache]: Analyzing trace with hash 568352447, now seen corresponding path program 1 times [2022-11-20 09:28:51,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:51,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256014399] [2022-11-20 09:28:51,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:51,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,321 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 09:28:51,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:51,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256014399] [2022-11-20 09:28:51,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256014399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:51,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:51,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:51,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123011047] [2022-11-20 09:28:51,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:51,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:51,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:51,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:51,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:51,327 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 714 out of 816 [2022-11-20 09:28:51,330 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 679 transitions, 1377 flow. Second operand has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states 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 09:28:51,330 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:51,330 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 714 of 816 [2022-11-20 09:28:51,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:52,185 INFO L130 PetriNetUnfolder]: 261/2240 cut-off events. [2022-11-20 09:28:52,185 INFO L131 PetriNetUnfolder]: For 84/94 co-relation queries the response was YES. [2022-11-20 09:28:52,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2689 conditions, 2240 events. 261/2240 cut-off events. For 84/94 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 13959 event pairs, 170 based on Foata normal form. 0/1831 useless extension candidates. Maximal degree in co-relation 2578. Up to 355 conditions per place. [2022-11-20 09:28:52,209 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 21 selfloop transitions, 2 changer transitions 0/678 dead transitions. [2022-11-20 09:28:52,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 673 places, 678 transitions, 1421 flow [2022-11-20 09:28:52,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:52,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:52,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2165 transitions. [2022-11-20 09:28:52,215 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8843954248366013 [2022-11-20 09:28:52,215 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2165 transitions. [2022-11-20 09:28:52,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2165 transitions. [2022-11-20 09:28:52,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:52,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2165 transitions. [2022-11-20 09:28:52,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 721.6666666666666) internal successors, (2165), 3 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states 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 09:28:52,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:52,229 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:52,229 INFO L175 Difference]: Start difference. First operand has 672 places, 679 transitions, 1377 flow. Second operand 3 states and 2165 transitions. [2022-11-20 09:28:52,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 673 places, 678 transitions, 1421 flow [2022-11-20 09:28:52,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 672 places, 678 transitions, 1420 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:28:52,244 INFO L231 Difference]: Finished difference. Result has 672 places, 678 transitions, 1378 flow [2022-11-20 09:28:52,245 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1374, PETRI_DIFFERENCE_MINUEND_PLACES=670, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1378, PETRI_PLACES=672, PETRI_TRANSITIONS=678} [2022-11-20 09:28:52,246 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -91 predicate places. [2022-11-20 09:28:52,246 INFO L495 AbstractCegarLoop]: Abstraction has has 672 places, 678 transitions, 1378 flow [2022-11-20 09:28:52,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 715.3333333333334) internal successors, (2146), 3 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states 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 09:28:52,247 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:52,248 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:52,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 09:28:52,248 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:52,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:52,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1820373389, now seen corresponding path program 1 times [2022-11-20 09:28:52,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:52,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445999020] [2022-11-20 09:28:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:52,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:52,330 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 09:28:52,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:52,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445999020] [2022-11-20 09:28:52,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445999020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:52,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:52,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:52,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510949680] [2022-11-20 09:28:52,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:52,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:52,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:52,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:52,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:52,336 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 720 out of 816 [2022-11-20 09:28:52,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 678 transitions, 1378 flow. Second operand has 3 states, 3 states have (on average 721.3333333333334) internal successors, (2164), 3 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states 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 09:28:52,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:52,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 720 of 816 [2022-11-20 09:28:52,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:52,711 INFO L130 PetriNetUnfolder]: 46/841 cut-off events. [2022-11-20 09:28:52,711 INFO L131 PetriNetUnfolder]: For 18/28 co-relation queries the response was YES. [2022-11-20 09:28:52,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 934 conditions, 841 events. 46/841 cut-off events. For 18/28 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2193 event pairs, 17 based on Foata normal form. 0/737 useless extension candidates. Maximal degree in co-relation 822. Up to 59 conditions per place. [2022-11-20 09:28:52,723 INFO L137 encePairwiseOnDemand]: 814/816 looper letters, 15 selfloop transitions, 1 changer transitions 0/677 dead transitions. [2022-11-20 09:28:52,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 673 places, 677 transitions, 1408 flow [2022-11-20 09:28:52,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:52,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:52,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2176 transitions. [2022-11-20 09:28:52,728 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2022-11-20 09:28:52,729 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2176 transitions. [2022-11-20 09:28:52,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2176 transitions. [2022-11-20 09:28:52,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:52,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2176 transitions. [2022-11-20 09:28:52,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 725.3333333333334) internal successors, (2176), 3 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states 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 09:28:52,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:52,742 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:52,742 INFO L175 Difference]: Start difference. First operand has 672 places, 678 transitions, 1378 flow. Second operand 3 states and 2176 transitions. [2022-11-20 09:28:52,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 673 places, 677 transitions, 1408 flow [2022-11-20 09:28:52,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 671 places, 677 transitions, 1404 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:52,756 INFO L231 Difference]: Finished difference. Result has 671 places, 677 transitions, 1374 flow [2022-11-20 09:28:52,757 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1372, PETRI_DIFFERENCE_MINUEND_PLACES=669, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=677, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1374, PETRI_PLACES=671, PETRI_TRANSITIONS=677} [2022-11-20 09:28:52,758 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -92 predicate places. [2022-11-20 09:28:52,758 INFO L495 AbstractCegarLoop]: Abstraction has has 671 places, 677 transitions, 1374 flow [2022-11-20 09:28:52,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 721.3333333333334) internal successors, (2164), 3 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states 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 09:28:52,759 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:52,759 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, 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 09:28:52,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 09:28:52,760 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:52,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:52,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2031411190, now seen corresponding path program 1 times [2022-11-20 09:28:52,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:52,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925969361] [2022-11-20 09:28:52,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:52,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:52,853 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 09:28:52,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:52,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925969361] [2022-11-20 09:28:52,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925969361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:52,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:52,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:52,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574579514] [2022-11-20 09:28:52,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:52,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:52,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:52,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:52,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:52,860 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 720 out of 816 [2022-11-20 09:28:52,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 671 places, 677 transitions, 1374 flow. Second operand has 3 states, 3 states have (on average 721.3333333333334) internal successors, (2164), 3 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states 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 09:28:52,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:52,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 720 of 816 [2022-11-20 09:28:52,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:53,266 INFO L130 PetriNetUnfolder]: 46/840 cut-off events. [2022-11-20 09:28:53,267 INFO L131 PetriNetUnfolder]: For 18/28 co-relation queries the response was YES. [2022-11-20 09:28:53,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 933 conditions, 840 events. 46/840 cut-off events. For 18/28 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2186 event pairs, 17 based on Foata normal form. 0/737 useless extension candidates. Maximal degree in co-relation 822. Up to 61 conditions per place. [2022-11-20 09:28:53,278 INFO L137 encePairwiseOnDemand]: 813/816 looper letters, 15 selfloop transitions, 2 changer transitions 0/676 dead transitions. [2022-11-20 09:28:53,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 676 transitions, 1406 flow [2022-11-20 09:28:53,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:53,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:53,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2177 transitions. [2022-11-20 09:28:53,284 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.889297385620915 [2022-11-20 09:28:53,285 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2177 transitions. [2022-11-20 09:28:53,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2177 transitions. [2022-11-20 09:28:53,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:53,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2177 transitions. [2022-11-20 09:28:53,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 725.6666666666666) internal successors, (2177), 3 states have internal predecessors, (2177), 0 states have call successors, (0), 0 states 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 09:28:53,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:53,362 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 816.0) internal successors, (3264), 4 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states 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 09:28:53,362 INFO L175 Difference]: Start difference. First operand has 671 places, 677 transitions, 1374 flow. Second operand 3 states and 2177 transitions. [2022-11-20 09:28:53,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 672 places, 676 transitions, 1406 flow [2022-11-20 09:28:53,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 671 places, 676 transitions, 1405 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:28:53,373 INFO L231 Difference]: Finished difference. Result has 671 places, 676 transitions, 1375 flow [2022-11-20 09:28:53,374 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=816, PETRI_DIFFERENCE_MINUEND_FLOW=1371, PETRI_DIFFERENCE_MINUEND_PLACES=669, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=676, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1375, PETRI_PLACES=671, PETRI_TRANSITIONS=676} [2022-11-20 09:28:53,375 INFO L288 CegarLoopForPetriNet]: 763 programPoint places, -92 predicate places. [2022-11-20 09:28:53,375 INFO L495 AbstractCegarLoop]: Abstraction has has 671 places, 676 transitions, 1375 flow [2022-11-20 09:28:53,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 721.3333333333334) internal successors, (2164), 3 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states 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 09:28:53,376 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:53,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:53,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 09:28:53,376 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2022-11-20 09:28:53,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:53,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1058654897, now seen corresponding path program 1 times [2022-11-20 09:28:53,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:53,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358158134] [2022-11-20 09:28:53,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:53,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:53,613 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 09:28:53,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:53,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358158134] [2022-11-20 09:28:53,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358158134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:53,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:53,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:53,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486245330] [2022-11-20 09:28:53,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:53,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:53,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:53,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:53,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:53,618 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 619 out of 816 [2022-11-20 09:28:53,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 671 places, 676 transitions, 1375 flow. Second operand has 3 states, 3 states have (on average 621.6666666666666) internal successors, (1865), 3 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states 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 09:28:53,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:53,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 619 of 816 [2022-11-20 09:28:53,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand