./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-simpl-str-subst.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_bb167e15-8083-41ec-91bd-ed7b4b12762f/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/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_bb167e15-8083-41ec-91bd-ed7b4b12762f/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/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_bb167e15-8083-41ec-91bd-ed7b4b12762f/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 761ee9f18ea63f4f821d50962d6c2d771ad2410f7c5dd57f48ec51463a1d5307 --- 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 10:39:44,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:39:44,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:39:44,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:39:44,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:39:44,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:39:44,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:39:44,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:39:44,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:39:44,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:39:44,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:39:44,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:39:44,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:39:44,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:39:44,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:39:44,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:39:44,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:39:44,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:39:44,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:39:44,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:39:44,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:39:44,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:39:44,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:39:44,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:39:44,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:39:44,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:39:44,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:39:44,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:39:44,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:39:44,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:39:44,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:39:44,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:39:44,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:39:44,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:39:44,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:39:44,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:39:44,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:39:44,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:39:44,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:39:44,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:39:44,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:39:44,217 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:39:44,253 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:39:44,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:39:44,254 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:39:44,254 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:39:44,255 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:39:44,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:39:44,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:39:44,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:39:44,256 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:39:44,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:39:44,257 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:39:44,257 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:39:44,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:39:44,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:39:44,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:39:44,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:39:44,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:39:44,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:39:44,259 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:39:44,259 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:39:44,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:39:44,259 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:39:44,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:39:44,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:39:44,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:39:44,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:39:44,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:39:44,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:39:44,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:39:44,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:39:44,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:39:44,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:39:44,262 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:39:44,262 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:39:44,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:39:44,262 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_bb167e15-8083-41ec-91bd-ed7b4b12762f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 761ee9f18ea63f4f821d50962d6c2d771ad2410f7c5dd57f48ec51463a1d5307 [2022-11-20 10:39:44,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:39:44,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:39:44,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:39:44,612 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:39:44,613 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:39:44,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2022-11-20 10:39:47,595 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:39:47,852 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:39:47,852 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2022-11-20 10:39:47,858 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/bin/uautomizer-ug76WZFUDN/data/6e58a2c01/b42cfb93192844bea03e6372a7ca1cf2/FLAGb421c9827 [2022-11-20 10:39:47,872 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/bin/uautomizer-ug76WZFUDN/data/6e58a2c01/b42cfb93192844bea03e6372a7ca1cf2 [2022-11-20 10:39:47,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:39:47,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:39:47,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:39:47,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:39:47,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:39:47,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:39:47" (1/1) ... [2022-11-20 10:39:47,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8796fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:47, skipping insertion in model container [2022-11-20 10:39:47,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:39:47" (1/1) ... [2022-11-20 10:39:47,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:39:47,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:39:48,097 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_bb167e15-8083-41ec-91bd-ed7b4b12762f/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c[2575,2588] [2022-11-20 10:39:48,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:39:48,115 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:39:48,143 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_bb167e15-8083-41ec-91bd-ed7b4b12762f/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c[2575,2588] [2022-11-20 10:39:48,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:39:48,161 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:39:48,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:48 WrapperNode [2022-11-20 10:39:48,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:39:48,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:39:48,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:39:48,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:39:48,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:48" (1/1) ... [2022-11-20 10:39:48,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:48" (1/1) ... [2022-11-20 10:39:48,227 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 262 [2022-11-20 10:39:48,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:39:48,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:39:48,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:39:48,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:39:48,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:48" (1/1) ... [2022-11-20 10:39:48,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:48" (1/1) ... [2022-11-20 10:39:48,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:48" (1/1) ... [2022-11-20 10:39:48,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:48" (1/1) ... [2022-11-20 10:39:48,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:48" (1/1) ... [2022-11-20 10:39:48,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:48" (1/1) ... [2022-11-20 10:39:48,274 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:48" (1/1) ... [2022-11-20 10:39:48,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:48" (1/1) ... [2022-11-20 10:39:48,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:39:48,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:39:48,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:39:48,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:39:48,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:48" (1/1) ... [2022-11-20 10:39:48,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:39:48,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:39:48,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:39:48,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:39:48,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:39:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 10:39:48,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 10:39:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 10:39:48,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 10:39:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 10:39:48,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 10:39:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:39:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:39:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:39:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:39:48,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:39:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:39:48,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:39:48,375 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 10:39:48,493 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:39:48,496 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:39:49,080 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:39:49,093 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:39:49,093 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:39:49,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:39:49 BoogieIcfgContainer [2022-11-20 10:39:49,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:39:49,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:39:49,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:39:49,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:39:49,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:39:47" (1/3) ... [2022-11-20 10:39:49,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39984563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:39:49, skipping insertion in model container [2022-11-20 10:39:49,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:39:48" (2/3) ... [2022-11-20 10:39:49,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39984563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:39:49, skipping insertion in model container [2022-11-20 10:39:49,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:39:49" (3/3) ... [2022-11-20 10:39:49,107 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-subst.wvr.c [2022-11-20 10:39:49,116 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:39:49,128 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:39:49,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-20 10:39:49,129 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:39:49,270 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 10:39:49,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 342 places, 347 transitions, 718 flow [2022-11-20 10:39:49,497 INFO L130 PetriNetUnfolder]: 15/344 cut-off events. [2022-11-20 10:39:49,497 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 10:39:49,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 344 events. 15/344 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 788 event pairs, 0 based on Foata normal form. 0/297 useless extension candidates. Maximal degree in co-relation 211. Up to 2 conditions per place. [2022-11-20 10:39:49,507 INFO L82 GeneralOperation]: Start removeDead. Operand has 342 places, 347 transitions, 718 flow [2022-11-20 10:39:49,515 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 318 places, 321 transitions, 660 flow [2022-11-20 10:39:49,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:39:49,532 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;@4f32e5d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:39:49,534 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-11-20 10:39:49,544 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-20 10:39:49,545 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:39:49,545 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:49,546 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] [2022-11-20 10:39:49,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:49,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:49,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1798915817, now seen corresponding path program 1 times [2022-11-20 10:39:49,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:49,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126225699] [2022-11-20 10:39:49,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:49,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:49,832 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 10:39:49,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:49,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126225699] [2022-11-20 10:39:49,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126225699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:49,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:49,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:49,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107741343] [2022-11-20 10:39:49,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:49,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:49,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:49,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:49,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:49,904 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 347 [2022-11-20 10:39:49,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 321 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states 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 10:39:49,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:49,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 347 [2022-11-20 10:39:49,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:50,227 INFO L130 PetriNetUnfolder]: 65/932 cut-off events. [2022-11-20 10:39:50,227 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-11-20 10:39:50,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1071 conditions, 932 events. 65/932 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5790 event pairs, 39 based on Foata normal form. 33/795 useless extension candidates. Maximal degree in co-relation 864. Up to 85 conditions per place. [2022-11-20 10:39:50,248 INFO L137 encePairwiseOnDemand]: 337/347 looper letters, 15 selfloop transitions, 2 changer transitions 1/313 dead transitions. [2022-11-20 10:39:50,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 313 transitions, 678 flow [2022-11-20 10:39:50,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:50,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 985 transitions. [2022-11-20 10:39:50,271 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9462055715658021 [2022-11-20 10:39:50,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 985 transitions. [2022-11-20 10:39:50,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 985 transitions. [2022-11-20 10:39:50,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:50,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 985 transitions. [2022-11-20 10:39:50,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states 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 10:39:50,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:50,298 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:50,300 INFO L175 Difference]: Start difference. First operand has 318 places, 321 transitions, 660 flow. Second operand 3 states and 985 transitions. [2022-11-20 10:39:50,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 313 transitions, 678 flow [2022-11-20 10:39:50,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 313 transitions, 666 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 10:39:50,315 INFO L231 Difference]: Finished difference. Result has 313 places, 312 transitions, 634 flow [2022-11-20 10:39:50,319 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=634, PETRI_PLACES=313, PETRI_TRANSITIONS=312} [2022-11-20 10:39:50,328 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -5 predicate places. [2022-11-20 10:39:50,328 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 312 transitions, 634 flow [2022-11-20 10:39:50,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states 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 10:39:50,329 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:50,329 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] [2022-11-20 10:39:50,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:39:50,330 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:50,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:50,332 INFO L85 PathProgramCache]: Analyzing trace with hash -985175869, now seen corresponding path program 1 times [2022-11-20 10:39:50,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:50,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223404079] [2022-11-20 10:39:50,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:50,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:50,447 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 10:39:50,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:50,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223404079] [2022-11-20 10:39:50,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223404079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:50,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:50,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:50,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878024455] [2022-11-20 10:39:50,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:50,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:50,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:50,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:50,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:50,453 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 347 [2022-11-20 10:39:50,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 312 transitions, 634 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states 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 10:39:50,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:50,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 347 [2022-11-20 10:39:50,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:50,736 INFO L130 PetriNetUnfolder]: 62/1188 cut-off events. [2022-11-20 10:39:50,737 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-20 10:39:50,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 1188 events. 62/1188 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 8234 event pairs, 39 based on Foata normal form. 0/1018 useless extension candidates. Maximal degree in co-relation 1268. Up to 90 conditions per place. [2022-11-20 10:39:50,754 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 15 selfloop transitions, 2 changer transitions 0/311 dead transitions. [2022-11-20 10:39:50,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 311 transitions, 666 flow [2022-11-20 10:39:50,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:50,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:50,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2022-11-20 10:39:50,758 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9394812680115274 [2022-11-20 10:39:50,758 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2022-11-20 10:39:50,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2022-11-20 10:39:50,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:50,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2022-11-20 10:39:50,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states 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 10:39:50,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:50,765 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:50,765 INFO L175 Difference]: Start difference. First operand has 313 places, 312 transitions, 634 flow. Second operand 3 states and 978 transitions. [2022-11-20 10:39:50,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 311 transitions, 666 flow [2022-11-20 10:39:50,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 311 transitions, 662 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:39:50,774 INFO L231 Difference]: Finished difference. Result has 311 places, 311 transitions, 632 flow [2022-11-20 10:39:50,775 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=311, PETRI_TRANSITIONS=311} [2022-11-20 10:39:50,776 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -7 predicate places. [2022-11-20 10:39:50,776 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 311 transitions, 632 flow [2022-11-20 10:39:50,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states 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 10:39:50,778 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:50,778 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] [2022-11-20 10:39:50,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:39:50,780 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:50,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:50,781 INFO L85 PathProgramCache]: Analyzing trace with hash 668762819, now seen corresponding path program 1 times [2022-11-20 10:39:50,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:50,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538450638] [2022-11-20 10:39:50,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:50,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:50,857 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 10:39:50,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:50,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538450638] [2022-11-20 10:39:50,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538450638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:50,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:50,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:50,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182915471] [2022-11-20 10:39:50,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:50,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:50,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:50,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:50,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:50,862 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 347 [2022-11-20 10:39:50,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 311 transitions, 632 flow. Second operand has 3 states, 3 states have (on average 318.3333333333333) internal successors, (955), 3 states have internal predecessors, (955), 0 states have call successors, (0), 0 states 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 10:39:50,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:50,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 347 [2022-11-20 10:39:50,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:51,117 INFO L130 PetriNetUnfolder]: 62/916 cut-off events. [2022-11-20 10:39:51,118 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-20 10:39:51,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 916 events. 62/916 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5360 event pairs, 36 based on Foata normal form. 0/756 useless extension candidates. Maximal degree in co-relation 984. Up to 91 conditions per place. [2022-11-20 10:39:51,133 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 18 selfloop transitions, 2 changer transitions 0/310 dead transitions. [2022-11-20 10:39:51,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 310 transitions, 670 flow [2022-11-20 10:39:51,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:51,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:51,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 972 transitions. [2022-11-20 10:39:51,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9337175792507204 [2022-11-20 10:39:51,139 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 972 transitions. [2022-11-20 10:39:51,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 972 transitions. [2022-11-20 10:39:51,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:51,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 972 transitions. [2022-11-20 10:39:51,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 324.0) internal successors, (972), 3 states have internal predecessors, (972), 0 states have call successors, (0), 0 states 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 10:39:51,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:51,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:51,147 INFO L175 Difference]: Start difference. First operand has 311 places, 311 transitions, 632 flow. Second operand 3 states and 972 transitions. [2022-11-20 10:39:51,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 310 transitions, 670 flow [2022-11-20 10:39:51,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 310 transitions, 666 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:39:51,153 INFO L231 Difference]: Finished difference. Result has 310 places, 310 transitions, 630 flow [2022-11-20 10:39:51,154 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=310, PETRI_TRANSITIONS=310} [2022-11-20 10:39:51,156 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -8 predicate places. [2022-11-20 10:39:51,157 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 310 transitions, 630 flow [2022-11-20 10:39:51,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 318.3333333333333) internal successors, (955), 3 states have internal predecessors, (955), 0 states have call successors, (0), 0 states 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 10:39:51,158 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:51,158 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] [2022-11-20 10:39:51,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:39:51,158 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:51,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:51,159 INFO L85 PathProgramCache]: Analyzing trace with hash 251499056, now seen corresponding path program 1 times [2022-11-20 10:39:51,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:51,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69403336] [2022-11-20 10:39:51,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:51,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:51,252 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 10:39:51,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:51,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69403336] [2022-11-20 10:39:51,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69403336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:51,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:51,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:51,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776638200] [2022-11-20 10:39:51,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:51,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:51,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:51,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:51,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:51,259 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 347 [2022-11-20 10:39:51,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 310 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states 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 10:39:51,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:51,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 347 [2022-11-20 10:39:51,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:51,437 INFO L130 PetriNetUnfolder]: 36/754 cut-off events. [2022-11-20 10:39:51,437 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-11-20 10:39:51,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 832 conditions, 754 events. 36/754 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3844 event pairs, 21 based on Foata normal form. 0/651 useless extension candidates. Maximal degree in co-relation 781. Up to 63 conditions per place. [2022-11-20 10:39:51,452 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 15 selfloop transitions, 2 changer transitions 0/309 dead transitions. [2022-11-20 10:39:51,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 309 transitions, 662 flow [2022-11-20 10:39:51,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:51,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:51,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2022-11-20 10:39:51,455 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9394812680115274 [2022-11-20 10:39:51,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2022-11-20 10:39:51,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2022-11-20 10:39:51,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:51,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2022-11-20 10:39:51,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states 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 10:39:51,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:51,467 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:51,467 INFO L175 Difference]: Start difference. First operand has 310 places, 310 transitions, 630 flow. Second operand 3 states and 978 transitions. [2022-11-20 10:39:51,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 309 transitions, 662 flow [2022-11-20 10:39:51,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 309 transitions, 658 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:39:51,474 INFO L231 Difference]: Finished difference. Result has 309 places, 309 transitions, 628 flow [2022-11-20 10:39:51,474 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=309, PETRI_TRANSITIONS=309} [2022-11-20 10:39:51,481 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -9 predicate places. [2022-11-20 10:39:51,481 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 309 transitions, 628 flow [2022-11-20 10:39:51,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states 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 10:39:51,482 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:51,482 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] [2022-11-20 10:39:51,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:39:51,483 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:51,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:51,484 INFO L85 PathProgramCache]: Analyzing trace with hash -2130664275, now seen corresponding path program 1 times [2022-11-20 10:39:51,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:51,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154888296] [2022-11-20 10:39:51,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:51,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:51,551 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 10:39:51,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:51,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154888296] [2022-11-20 10:39:51,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154888296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:51,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:51,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:51,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549272562] [2022-11-20 10:39:51,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:51,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:51,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:51,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:51,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:51,556 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 347 [2022-11-20 10:39:51,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 309 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states 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 10:39:51,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:51,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 347 [2022-11-20 10:39:51,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:51,877 INFO L130 PetriNetUnfolder]: 174/1382 cut-off events. [2022-11-20 10:39:51,877 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-20 10:39:51,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1647 conditions, 1382 events. 174/1382 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 10146 event pairs, 132 based on Foata normal form. 0/1152 useless extension candidates. Maximal degree in co-relation 1589. Up to 250 conditions per place. [2022-11-20 10:39:51,905 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 21 selfloop transitions, 2 changer transitions 0/308 dead transitions. [2022-11-20 10:39:51,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 308 transitions, 672 flow [2022-11-20 10:39:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:51,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:51,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 966 transitions. [2022-11-20 10:39:51,908 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9279538904899135 [2022-11-20 10:39:51,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 966 transitions. [2022-11-20 10:39:51,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 966 transitions. [2022-11-20 10:39:51,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:51,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 966 transitions. [2022-11-20 10:39:51,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 322.0) internal successors, (966), 3 states have internal predecessors, (966), 0 states have call successors, (0), 0 states 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 10:39:51,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:51,915 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:51,916 INFO L175 Difference]: Start difference. First operand has 309 places, 309 transitions, 628 flow. Second operand 3 states and 966 transitions. [2022-11-20 10:39:51,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 308 transitions, 672 flow [2022-11-20 10:39:51,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 308 transitions, 668 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:39:51,922 INFO L231 Difference]: Finished difference. Result has 308 places, 308 transitions, 626 flow [2022-11-20 10:39:51,923 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=626, PETRI_PLACES=308, PETRI_TRANSITIONS=308} [2022-11-20 10:39:51,925 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -10 predicate places. [2022-11-20 10:39:51,925 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 308 transitions, 626 flow [2022-11-20 10:39:51,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states 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 10:39:51,926 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:51,927 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] [2022-11-20 10:39:51,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:39:51,927 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:51,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:51,929 INFO L85 PathProgramCache]: Analyzing trace with hash -96418600, now seen corresponding path program 1 times [2022-11-20 10:39:51,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:51,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074947013] [2022-11-20 10:39:51,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:51,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:51,986 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 10:39:51,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:51,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074947013] [2022-11-20 10:39:51,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074947013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:51,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:51,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:51,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889323218] [2022-11-20 10:39:51,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:51,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:51,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:51,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:51,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:51,991 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 347 [2022-11-20 10:39:51,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 308 transitions, 626 flow. Second operand has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states 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 10:39:51,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:51,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 347 [2022-11-20 10:39:51,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:52,163 INFO L130 PetriNetUnfolder]: 52/823 cut-off events. [2022-11-20 10:39:52,163 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-20 10:39:52,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 823 events. 52/823 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4351 event pairs, 39 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 860. Up to 90 conditions per place. [2022-11-20 10:39:52,184 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 15 selfloop transitions, 2 changer transitions 0/307 dead transitions. [2022-11-20 10:39:52,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 307 transitions, 658 flow [2022-11-20 10:39:52,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:52,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:52,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2022-11-20 10:39:52,187 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9394812680115274 [2022-11-20 10:39:52,187 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2022-11-20 10:39:52,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2022-11-20 10:39:52,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:52,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2022-11-20 10:39:52,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states 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 10:39:52,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:52,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:52,194 INFO L175 Difference]: Start difference. First operand has 308 places, 308 transitions, 626 flow. Second operand 3 states and 978 transitions. [2022-11-20 10:39:52,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 307 transitions, 658 flow [2022-11-20 10:39:52,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 307 transitions, 654 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:39:52,205 INFO L231 Difference]: Finished difference. Result has 307 places, 307 transitions, 624 flow [2022-11-20 10:39:52,205 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=624, PETRI_PLACES=307, PETRI_TRANSITIONS=307} [2022-11-20 10:39:52,208 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -11 predicate places. [2022-11-20 10:39:52,208 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 307 transitions, 624 flow [2022-11-20 10:39:52,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states 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 10:39:52,210 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:52,210 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] [2022-11-20 10:39:52,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:39:52,210 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:52,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:52,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1562860741, now seen corresponding path program 1 times [2022-11-20 10:39:52,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:52,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917235572] [2022-11-20 10:39:52,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:52,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:52,313 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 10:39:52,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:52,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917235572] [2022-11-20 10:39:52,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917235572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:52,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:52,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:52,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086926172] [2022-11-20 10:39:52,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:52,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:52,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:52,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:52,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:52,318 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 347 [2022-11-20 10:39:52,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 307 transitions, 624 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states 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 10:39:52,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:52,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 347 [2022-11-20 10:39:52,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:52,488 INFO L130 PetriNetUnfolder]: 42/781 cut-off events. [2022-11-20 10:39:52,488 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 10:39:52,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 781 events. 42/781 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4435 event pairs, 6 based on Foata normal form. 0/664 useless extension candidates. Maximal degree in co-relation 774. Up to 43 conditions per place. [2022-11-20 10:39:52,500 INFO L137 encePairwiseOnDemand]: 343/347 looper letters, 14 selfloop transitions, 2 changer transitions 0/309 dead transitions. [2022-11-20 10:39:52,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 309 transitions, 662 flow [2022-11-20 10:39:52,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:52,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:52,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 987 transitions. [2022-11-20 10:39:52,503 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9481268011527377 [2022-11-20 10:39:52,504 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 987 transitions. [2022-11-20 10:39:52,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 987 transitions. [2022-11-20 10:39:52,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:52,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 987 transitions. [2022-11-20 10:39:52,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 0 states have call successors, (0), 0 states 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 10:39:52,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:52,509 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:52,510 INFO L175 Difference]: Start difference. First operand has 307 places, 307 transitions, 624 flow. Second operand 3 states and 987 transitions. [2022-11-20 10:39:52,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 309 transitions, 662 flow [2022-11-20 10:39:52,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 309 transitions, 658 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:39:52,516 INFO L231 Difference]: Finished difference. Result has 306 places, 307 transitions, 630 flow [2022-11-20 10:39:52,516 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=306, PETRI_TRANSITIONS=307} [2022-11-20 10:39:52,517 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -12 predicate places. [2022-11-20 10:39:52,517 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 307 transitions, 630 flow [2022-11-20 10:39:52,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states 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 10:39:52,518 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:52,518 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:39:52,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:39:52,518 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:52,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:52,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1739627056, now seen corresponding path program 1 times [2022-11-20 10:39:52,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:52,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701102775] [2022-11-20 10:39:52,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:52,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:52,608 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 10:39:52,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:52,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701102775] [2022-11-20 10:39:52,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701102775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:52,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:52,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:52,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132240903] [2022-11-20 10:39:52,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:52,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:52,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:52,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:52,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:52,613 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 347 [2022-11-20 10:39:52,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 307 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 0 states have call successors, (0), 0 states 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 10:39:52,615 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:52,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 347 [2022-11-20 10:39:52,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:52,825 INFO L130 PetriNetUnfolder]: 49/966 cut-off events. [2022-11-20 10:39:52,825 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-20 10:39:52,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 966 events. 49/966 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5983 event pairs, 12 based on Foata normal form. 0/830 useless extension candidates. Maximal degree in co-relation 901. Up to 49 conditions per place. [2022-11-20 10:39:52,838 INFO L137 encePairwiseOnDemand]: 341/347 looper letters, 16 selfloop transitions, 3 changer transitions 0/309 dead transitions. [2022-11-20 10:39:52,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 309 transitions, 674 flow [2022-11-20 10:39:52,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:52,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:52,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 982 transitions. [2022-11-20 10:39:52,842 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9433237271853987 [2022-11-20 10:39:52,842 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 982 transitions. [2022-11-20 10:39:52,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 982 transitions. [2022-11-20 10:39:52,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:52,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 982 transitions. [2022-11-20 10:39:52,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states 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 10:39:52,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:52,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:52,848 INFO L175 Difference]: Start difference. First operand has 306 places, 307 transitions, 630 flow. Second operand 3 states and 982 transitions. [2022-11-20 10:39:52,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 309 transitions, 674 flow [2022-11-20 10:39:52,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 309 transitions, 674 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:39:52,853 INFO L231 Difference]: Finished difference. Result has 306 places, 307 transitions, 645 flow [2022-11-20 10:39:52,854 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=645, PETRI_PLACES=306, PETRI_TRANSITIONS=307} [2022-11-20 10:39:52,855 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -12 predicate places. [2022-11-20 10:39:52,855 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 307 transitions, 645 flow [2022-11-20 10:39:52,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 0 states have call successors, (0), 0 states 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 10:39:52,856 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:52,856 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:39:52,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:39:52,857 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:52,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:52,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2110332754, now seen corresponding path program 1 times [2022-11-20 10:39:52,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:52,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899139751] [2022-11-20 10:39:52,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:52,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:52,895 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 10:39:52,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:52,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899139751] [2022-11-20 10:39:52,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899139751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:52,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:52,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:52,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980797888] [2022-11-20 10:39:52,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:52,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:52,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:52,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:52,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:52,899 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 347 [2022-11-20 10:39:52,900 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 307 transitions, 645 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states 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 10:39:52,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:52,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 347 [2022-11-20 10:39:52,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:53,100 INFO L130 PetriNetUnfolder]: 38/1003 cut-off events. [2022-11-20 10:39:53,100 INFO L131 PetriNetUnfolder]: For 11/15 co-relation queries the response was YES. [2022-11-20 10:39:53,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 1003 events. 38/1003 cut-off events. For 11/15 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6153 event pairs, 5 based on Foata normal form. 0/893 useless extension candidates. Maximal degree in co-relation 894. Up to 53 conditions per place. [2022-11-20 10:39:53,118 INFO L137 encePairwiseOnDemand]: 343/347 looper letters, 17 selfloop transitions, 2 changer transitions 0/312 dead transitions. [2022-11-20 10:39:53,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 312 transitions, 698 flow [2022-11-20 10:39:53,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:53,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:53,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 990 transitions. [2022-11-20 10:39:53,121 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9510086455331412 [2022-11-20 10:39:53,121 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 990 transitions. [2022-11-20 10:39:53,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 990 transitions. [2022-11-20 10:39:53,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:53,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 990 transitions. [2022-11-20 10:39:53,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 330.0) internal successors, (990), 3 states have internal predecessors, (990), 0 states have call successors, (0), 0 states 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 10:39:53,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:53,127 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:53,127 INFO L175 Difference]: Start difference. First operand has 306 places, 307 transitions, 645 flow. Second operand 3 states and 990 transitions. [2022-11-20 10:39:53,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 312 transitions, 698 flow [2022-11-20 10:39:53,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 312 transitions, 698 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:39:53,133 INFO L231 Difference]: Finished difference. Result has 307 places, 307 transitions, 655 flow [2022-11-20 10:39:53,134 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=655, PETRI_PLACES=307, PETRI_TRANSITIONS=307} [2022-11-20 10:39:53,134 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -11 predicate places. [2022-11-20 10:39:53,135 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 307 transitions, 655 flow [2022-11-20 10:39:53,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states 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 10:39:53,135 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:53,136 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 10:39:53,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:39:53,136 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:53,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:53,137 INFO L85 PathProgramCache]: Analyzing trace with hash 800298320, now seen corresponding path program 1 times [2022-11-20 10:39:53,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:53,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050945331] [2022-11-20 10:39:53,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:53,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:53,174 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 10:39:53,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:53,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050945331] [2022-11-20 10:39:53,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050945331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:53,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:53,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:53,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24065482] [2022-11-20 10:39:53,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:53,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:53,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:53,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:53,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:53,178 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 347 [2022-11-20 10:39:53,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 307 transitions, 655 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states 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 10:39:53,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:53,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 347 [2022-11-20 10:39:53,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:53,356 INFO L130 PetriNetUnfolder]: 37/869 cut-off events. [2022-11-20 10:39:53,356 INFO L131 PetriNetUnfolder]: For 6/20 co-relation queries the response was YES. [2022-11-20 10:39:53,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 979 conditions, 869 events. 37/869 cut-off events. For 6/20 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4787 event pairs, 8 based on Foata normal form. 3/766 useless extension candidates. Maximal degree in co-relation 825. Up to 36 conditions per place. [2022-11-20 10:39:53,371 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 13 selfloop transitions, 2 changer transitions 0/308 dead transitions. [2022-11-20 10:39:53,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 308 transitions, 689 flow [2022-11-20 10:39:53,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:53,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:53,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 988 transitions. [2022-11-20 10:39:53,374 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9490874159462056 [2022-11-20 10:39:53,375 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 988 transitions. [2022-11-20 10:39:53,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 988 transitions. [2022-11-20 10:39:53,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:53,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 988 transitions. [2022-11-20 10:39:53,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states 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 10:39:53,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:53,381 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:53,381 INFO L175 Difference]: Start difference. First operand has 307 places, 307 transitions, 655 flow. Second operand 3 states and 988 transitions. [2022-11-20 10:39:53,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 308 transitions, 689 flow [2022-11-20 10:39:53,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 308 transitions, 689 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:39:53,387 INFO L231 Difference]: Finished difference. Result has 308 places, 306 transitions, 657 flow [2022-11-20 10:39:53,388 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=657, PETRI_PLACES=308, PETRI_TRANSITIONS=306} [2022-11-20 10:39:53,388 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -10 predicate places. [2022-11-20 10:39:53,389 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 306 transitions, 657 flow [2022-11-20 10:39:53,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states 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 10:39:53,389 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:53,390 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 10:39:53,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:39:53,390 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:53,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:53,391 INFO L85 PathProgramCache]: Analyzing trace with hash -805187118, now seen corresponding path program 1 times [2022-11-20 10:39:53,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:53,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426347303] [2022-11-20 10:39:53,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:53,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:53,432 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 10:39:53,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:53,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426347303] [2022-11-20 10:39:53,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426347303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:53,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:53,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:53,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309479543] [2022-11-20 10:39:53,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:53,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:53,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:53,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:53,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:53,437 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 347 [2022-11-20 10:39:53,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 306 transitions, 657 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states 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 10:39:53,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:53,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 347 [2022-11-20 10:39:53,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:53,702 INFO L130 PetriNetUnfolder]: 33/1092 cut-off events. [2022-11-20 10:39:53,702 INFO L131 PetriNetUnfolder]: For 23/33 co-relation queries the response was YES. [2022-11-20 10:39:53,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 1092 events. 33/1092 cut-off events. For 23/33 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6222 event pairs, 6 based on Foata normal form. 1/976 useless extension candidates. Maximal degree in co-relation 1043. Up to 51 conditions per place. [2022-11-20 10:39:53,725 INFO L137 encePairwiseOnDemand]: 343/347 looper letters, 17 selfloop transitions, 2 changer transitions 0/311 dead transitions. [2022-11-20 10:39:53,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 311 transitions, 710 flow [2022-11-20 10:39:53,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:53,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 990 transitions. [2022-11-20 10:39:53,728 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9510086455331412 [2022-11-20 10:39:53,728 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 990 transitions. [2022-11-20 10:39:53,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 990 transitions. [2022-11-20 10:39:53,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:53,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 990 transitions. [2022-11-20 10:39:53,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 330.0) internal successors, (990), 3 states have internal predecessors, (990), 0 states have call successors, (0), 0 states 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 10:39:53,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:53,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:53,748 INFO L175 Difference]: Start difference. First operand has 308 places, 306 transitions, 657 flow. Second operand 3 states and 990 transitions. [2022-11-20 10:39:53,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 311 transitions, 710 flow [2022-11-20 10:39:53,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 311 transitions, 706 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:39:53,754 INFO L231 Difference]: Finished difference. Result has 307 places, 306 transitions, 663 flow [2022-11-20 10:39:53,754 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=663, PETRI_PLACES=307, PETRI_TRANSITIONS=306} [2022-11-20 10:39:53,755 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -11 predicate places. [2022-11-20 10:39:53,755 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 306 transitions, 663 flow [2022-11-20 10:39:53,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states 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 10:39:53,756 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:53,756 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] [2022-11-20 10:39:53,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:39:53,756 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:53,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:53,757 INFO L85 PathProgramCache]: Analyzing trace with hash 991033126, now seen corresponding path program 1 times [2022-11-20 10:39:53,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:53,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12273363] [2022-11-20 10:39:53,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:53,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:53,806 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 10:39:53,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:53,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12273363] [2022-11-20 10:39:53,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12273363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:53,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:53,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:53,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909806110] [2022-11-20 10:39:53,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:53,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:53,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:53,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:53,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:53,810 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 347 [2022-11-20 10:39:53,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 306 transitions, 663 flow. Second operand has 3 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 0 states have call successors, (0), 0 states 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 10:39:53,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:53,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 347 [2022-11-20 10:39:53,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:54,429 INFO L130 PetriNetUnfolder]: 235/3700 cut-off events. [2022-11-20 10:39:54,430 INFO L131 PetriNetUnfolder]: For 69/171 co-relation queries the response was YES. [2022-11-20 10:39:54,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4186 conditions, 3700 events. 235/3700 cut-off events. For 69/171 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 36595 event pairs, 104 based on Foata normal form. 0/3264 useless extension candidates. Maximal degree in co-relation 3493. Up to 323 conditions per place. [2022-11-20 10:39:54,471 INFO L137 encePairwiseOnDemand]: 339/347 looper letters, 18 selfloop transitions, 4 changer transitions 0/308 dead transitions. [2022-11-20 10:39:54,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 308 transitions, 713 flow [2022-11-20 10:39:54,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:54,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:54,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 977 transitions. [2022-11-20 10:39:54,474 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9385206532180596 [2022-11-20 10:39:54,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 977 transitions. [2022-11-20 10:39:54,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 977 transitions. [2022-11-20 10:39:54,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:54,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 977 transitions. [2022-11-20 10:39:54,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.6666666666667) internal successors, (977), 3 states have internal predecessors, (977), 0 states have call successors, (0), 0 states 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 10:39:54,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:54,479 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:54,479 INFO L175 Difference]: Start difference. First operand has 307 places, 306 transitions, 663 flow. Second operand 3 states and 977 transitions. [2022-11-20 10:39:54,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 308 transitions, 713 flow [2022-11-20 10:39:54,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 308 transitions, 713 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:39:54,485 INFO L231 Difference]: Finished difference. Result has 306 places, 306 transitions, 683 flow [2022-11-20 10:39:54,485 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=683, PETRI_PLACES=306, PETRI_TRANSITIONS=306} [2022-11-20 10:39:54,486 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -12 predicate places. [2022-11-20 10:39:54,486 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 306 transitions, 683 flow [2022-11-20 10:39:54,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 0 states have call successors, (0), 0 states 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 10:39:54,487 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:54,487 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] [2022-11-20 10:39:54,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:39:54,487 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:54,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:54,488 INFO L85 PathProgramCache]: Analyzing trace with hash -167931050, now seen corresponding path program 1 times [2022-11-20 10:39:54,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:54,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764904027] [2022-11-20 10:39:54,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:54,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:54,523 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 10:39:54,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:54,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764904027] [2022-11-20 10:39:54,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764904027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:54,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:54,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:54,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385010421] [2022-11-20 10:39:54,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:54,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:54,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:54,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:54,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:54,526 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 347 [2022-11-20 10:39:54,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 306 transitions, 683 flow. Second operand has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 0 states have call successors, (0), 0 states 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 10:39:54,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:54,528 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 347 [2022-11-20 10:39:54,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:54,958 INFO L130 PetriNetUnfolder]: 92/2130 cut-off events. [2022-11-20 10:39:54,958 INFO L131 PetriNetUnfolder]: For 27/60 co-relation queries the response was YES. [2022-11-20 10:39:54,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2450 conditions, 2130 events. 92/2130 cut-off events. For 27/60 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17522 event pairs, 16 based on Foata normal form. 2/1903 useless extension candidates. Maximal degree in co-relation 1934. Up to 84 conditions per place. [2022-11-20 10:39:54,990 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 16 selfloop transitions, 2 changer transitions 0/307 dead transitions. [2022-11-20 10:39:54,990 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 307 transitions, 723 flow [2022-11-20 10:39:54,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:54,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:54,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 982 transitions. [2022-11-20 10:39:54,993 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9433237271853987 [2022-11-20 10:39:54,994 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 982 transitions. [2022-11-20 10:39:54,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 982 transitions. [2022-11-20 10:39:54,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:54,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 982 transitions. [2022-11-20 10:39:54,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states 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 10:39:54,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:54,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:54,999 INFO L175 Difference]: Start difference. First operand has 306 places, 306 transitions, 683 flow. Second operand 3 states and 982 transitions. [2022-11-20 10:39:55,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 307 transitions, 723 flow [2022-11-20 10:39:55,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 307 transitions, 723 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:39:55,008 INFO L231 Difference]: Finished difference. Result has 307 places, 305 transitions, 685 flow [2022-11-20 10:39:55,009 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=307, PETRI_TRANSITIONS=305} [2022-11-20 10:39:55,010 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -11 predicate places. [2022-11-20 10:39:55,010 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 305 transitions, 685 flow [2022-11-20 10:39:55,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 0 states have call successors, (0), 0 states 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 10:39:55,013 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:55,013 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] [2022-11-20 10:39:55,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 10:39:55,013 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:55,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:55,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1773416488, now seen corresponding path program 1 times [2022-11-20 10:39:55,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:55,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017050543] [2022-11-20 10:39:55,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:55,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:55,057 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 10:39:55,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:55,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017050543] [2022-11-20 10:39:55,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017050543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:55,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:55,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:55,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252567621] [2022-11-20 10:39:55,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:55,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:55,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:55,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:55,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:55,061 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 347 [2022-11-20 10:39:55,062 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 305 transitions, 685 flow. Second operand has 3 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 10:39:55,062 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:55,062 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 347 [2022-11-20 10:39:55,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:55,527 INFO L130 PetriNetUnfolder]: 108/2658 cut-off events. [2022-11-20 10:39:55,527 INFO L131 PetriNetUnfolder]: For 42/46 co-relation queries the response was YES. [2022-11-20 10:39:55,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2988 conditions, 2658 events. 108/2658 cut-off events. For 42/46 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 23161 event pairs, 16 based on Foata normal form. 0/2419 useless extension candidates. Maximal degree in co-relation 2555. Up to 164 conditions per place. [2022-11-20 10:39:55,561 INFO L137 encePairwiseOnDemand]: 343/347 looper letters, 16 selfloop transitions, 2 changer transitions 0/309 dead transitions. [2022-11-20 10:39:55,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 309 transitions, 733 flow [2022-11-20 10:39:55,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:55,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:55,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 989 transitions. [2022-11-20 10:39:55,564 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9500480307396734 [2022-11-20 10:39:55,565 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 989 transitions. [2022-11-20 10:39:55,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 989 transitions. [2022-11-20 10:39:55,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:55,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 989 transitions. [2022-11-20 10:39:55,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 0 states 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 10:39:55,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:55,571 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:55,571 INFO L175 Difference]: Start difference. First operand has 307 places, 305 transitions, 685 flow. Second operand 3 states and 989 transitions. [2022-11-20 10:39:55,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 309 transitions, 733 flow [2022-11-20 10:39:55,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 309 transitions, 729 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:39:55,579 INFO L231 Difference]: Finished difference. Result has 306 places, 305 transitions, 691 flow [2022-11-20 10:39:55,579 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=691, PETRI_PLACES=306, PETRI_TRANSITIONS=305} [2022-11-20 10:39:55,580 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -12 predicate places. [2022-11-20 10:39:55,580 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 305 transitions, 691 flow [2022-11-20 10:39:55,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 10:39:55,581 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:55,581 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] [2022-11-20 10:39:55,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 10:39:55,582 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:55,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:55,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2143362817, now seen corresponding path program 1 times [2022-11-20 10:39:55,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:55,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69642584] [2022-11-20 10:39:55,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:55,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:56,097 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 10:39:56,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:56,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69642584] [2022-11-20 10:39:56,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69642584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:56,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:56,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:39:56,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199290480] [2022-11-20 10:39:56,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:56,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:39:56,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:56,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:39:56,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:39:56,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 347 [2022-11-20 10:39:56,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 305 transitions, 691 flow. Second operand has 6 states, 6 states have (on average 310.0) internal successors, (1860), 6 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states 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 10:39:56,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:56,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 347 [2022-11-20 10:39:56,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:56,448 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([941] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork2_thidvar1_4) (= 0 v_thread3Thread1of1ForFork2_thidvar3_4) (= 0 v_thread3Thread1of1ForFork2_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem33#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork2_thidvar0_4)) InVars {thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} OutVars{thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[][280], [395#(= |#race~length_4~0| 0), 376#(= |#race~length_2~0| 0), Black: 388#true, 71#L77-7true, Black: 393#true, 381#(= |#race~to_int_1~0| 0), 390#(= |#race~to_int_3~0| 0), Black: 369#true, 404#(= |#race~to_int_5~0| 0), Black: 402#true, 412#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 374#true, 371#(= |#race~length_0~0| 0), Black: 379#true]) [2022-11-20 10:39:56,448 INFO L383 tUnfolder$Statistics]: this new event has 211 ancestors and is not cut-off event [2022-11-20 10:39:56,449 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-20 10:39:56,449 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-20 10:39:56,449 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-20 10:39:56,452 INFO L130 PetriNetUnfolder]: 46/1565 cut-off events. [2022-11-20 10:39:56,452 INFO L131 PetriNetUnfolder]: For 2/24 co-relation queries the response was YES. [2022-11-20 10:39:56,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1790 conditions, 1565 events. 46/1565 cut-off events. For 2/24 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11377 event pairs, 0 based on Foata normal form. 8/1426 useless extension candidates. Maximal degree in co-relation 1452. Up to 52 conditions per place. [2022-11-20 10:39:56,515 INFO L137 encePairwiseOnDemand]: 342/347 looper letters, 23 selfloop transitions, 4 changer transitions 0/304 dead transitions. [2022-11-20 10:39:56,515 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 304 transitions, 743 flow [2022-11-20 10:39:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:39:56,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:39:56,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1876 transitions. [2022-11-20 10:39:56,520 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9010566762728146 [2022-11-20 10:39:56,521 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1876 transitions. [2022-11-20 10:39:56,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1876 transitions. [2022-11-20 10:39:56,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:56,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1876 transitions. [2022-11-20 10:39:56,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.6666666666667) internal successors, (1876), 6 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states 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 10:39:56,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 347.0) internal successors, (2429), 7 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states 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 10:39:56,530 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 347.0) internal successors, (2429), 7 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states 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 10:39:56,531 INFO L175 Difference]: Start difference. First operand has 306 places, 305 transitions, 691 flow. Second operand 6 states and 1876 transitions. [2022-11-20 10:39:56,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 304 transitions, 743 flow [2022-11-20 10:39:56,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 304 transitions, 743 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:39:56,537 INFO L231 Difference]: Finished difference. Result has 310 places, 304 transitions, 697 flow [2022-11-20 10:39:56,537 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=697, PETRI_PLACES=310, PETRI_TRANSITIONS=304} [2022-11-20 10:39:56,538 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -8 predicate places. [2022-11-20 10:39:56,538 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 304 transitions, 697 flow [2022-11-20 10:39:56,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 310.0) internal successors, (1860), 6 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states 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 10:39:56,539 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:56,539 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] [2022-11-20 10:39:56,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 10:39:56,540 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:56,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:56,540 INFO L85 PathProgramCache]: Analyzing trace with hash -422800172, now seen corresponding path program 1 times [2022-11-20 10:39:56,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:56,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883480694] [2022-11-20 10:39:56,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:56,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:56,578 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 10:39:56,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:56,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883480694] [2022-11-20 10:39:56,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883480694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:56,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:56,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:56,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643682577] [2022-11-20 10:39:56,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:56,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:56,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:56,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:56,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:56,582 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 347 [2022-11-20 10:39:56,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 304 transitions, 697 flow. Second operand has 3 states, 3 states have (on average 323.0) internal successors, (969), 3 states have internal predecessors, (969), 0 states have call successors, (0), 0 states 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 10:39:56,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:56,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 347 [2022-11-20 10:39:56,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:56,932 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([890] L55-24-->L55-25: Formula: true InVars {} OutVars{thread3Thread1of1ForFork2_#t~nondet12#1=|v_thread3Thread1of1ForFork2_#t~nondet12#1_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_#t~nondet12#1][180], [395#(= |#race~length_4~0| 0), 132#L55-25true, 376#(= |#race~length_2~0| 0), Black: 388#true, 117#L76-7true, Black: 393#true, 381#(= |#race~to_int_1~0| 0), 414#true, Black: 369#true, 390#(= |#race~to_int_3~0| 0), Black: 402#true, 404#(= |#race~to_int_5~0| 0), 412#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 374#true, 371#(= |#race~length_0~0| 0), Black: 379#true]) [2022-11-20 10:39:56,932 INFO L383 tUnfolder$Statistics]: this new event has 223 ancestors and is cut-off event [2022-11-20 10:39:56,933 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-20 10:39:56,933 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-20 10:39:56,933 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-20 10:39:56,951 INFO L130 PetriNetUnfolder]: 131/1907 cut-off events. [2022-11-20 10:39:56,952 INFO L131 PetriNetUnfolder]: For 95/112 co-relation queries the response was YES. [2022-11-20 10:39:56,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2398 conditions, 1907 events. 131/1907 cut-off events. For 95/112 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 15706 event pairs, 36 based on Foata normal form. 0/1745 useless extension candidates. Maximal degree in co-relation 2290. Up to 184 conditions per place. [2022-11-20 10:39:56,983 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 15 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2022-11-20 10:39:56,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 305 transitions, 735 flow [2022-11-20 10:39:56,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:56,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:56,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 981 transitions. [2022-11-20 10:39:56,986 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9423631123919308 [2022-11-20 10:39:56,987 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 981 transitions. [2022-11-20 10:39:56,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 981 transitions. [2022-11-20 10:39:56,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:56,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 981 transitions. [2022-11-20 10:39:56,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 0 states have call successors, (0), 0 states 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 10:39:56,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:56,993 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:56,993 INFO L175 Difference]: Start difference. First operand has 310 places, 304 transitions, 697 flow. Second operand 3 states and 981 transitions. [2022-11-20 10:39:56,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 305 transitions, 735 flow [2022-11-20 10:39:56,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 305 transitions, 728 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:39:57,000 INFO L231 Difference]: Finished difference. Result has 307 places, 303 transitions, 692 flow [2022-11-20 10:39:57,000 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=692, PETRI_PLACES=307, PETRI_TRANSITIONS=303} [2022-11-20 10:39:57,001 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -11 predicate places. [2022-11-20 10:39:57,001 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 303 transitions, 692 flow [2022-11-20 10:39:57,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 323.0) internal successors, (969), 3 states have internal predecessors, (969), 0 states have call successors, (0), 0 states 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 10:39:57,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:57,002 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:39:57,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 10:39:57,002 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:57,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:57,003 INFO L85 PathProgramCache]: Analyzing trace with hash 614426831, now seen corresponding path program 1 times [2022-11-20 10:39:57,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:57,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669458236] [2022-11-20 10:39:57,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:57,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:57,515 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 10:39:57,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:57,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669458236] [2022-11-20 10:39:57,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669458236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:57,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:57,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:39:57,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820207517] [2022-11-20 10:39:57,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:57,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:39:57,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:57,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:39:57,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:39:57,519 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 347 [2022-11-20 10:39:57,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 303 transitions, 692 flow. Second operand has 6 states, 6 states have (on average 311.0) internal successors, (1866), 6 states have internal predecessors, (1866), 0 states have call successors, (0), 0 states 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 10:39:57,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:57,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 347 [2022-11-20 10:39:57,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:57,832 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([941] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork2_thidvar1_4) (= 0 v_thread3Thread1of1ForFork2_thidvar3_4) (= 0 v_thread3Thread1of1ForFork2_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem33#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork2_thidvar0_4)) InVars {thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} OutVars{thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[][278], [395#(= |#race~length_4~0| 0), 376#(= |#race~length_2~0| 0), Black: 388#true, 71#L77-7true, Black: 393#true, 381#(= |#race~to_int_1~0| 0), 390#(= |#race~to_int_3~0| 0), Black: 369#true, 414#true, 404#(= |#race~to_int_5~0| 0), Black: 402#true, 412#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 423#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), Black: 374#true, 371#(= |#race~length_0~0| 0), Black: 379#true]) [2022-11-20 10:39:57,832 INFO L383 tUnfolder$Statistics]: this new event has 211 ancestors and is not cut-off event [2022-11-20 10:39:57,832 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-20 10:39:57,833 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-20 10:39:57,833 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-20 10:39:57,836 INFO L130 PetriNetUnfolder]: 46/1532 cut-off events. [2022-11-20 10:39:57,836 INFO L131 PetriNetUnfolder]: For 2/23 co-relation queries the response was YES. [2022-11-20 10:39:57,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1820 conditions, 1532 events. 46/1532 cut-off events. For 2/23 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10987 event pairs, 0 based on Foata normal form. 4/1422 useless extension candidates. Maximal degree in co-relation 1708. Up to 42 conditions per place. [2022-11-20 10:39:57,862 INFO L137 encePairwiseOnDemand]: 342/347 looper letters, 22 selfloop transitions, 4 changer transitions 0/302 dead transitions. [2022-11-20 10:39:57,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 302 transitions, 742 flow [2022-11-20 10:39:57,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:39:57,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:39:57,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1875 transitions. [2022-11-20 10:39:57,867 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9005763688760807 [2022-11-20 10:39:57,868 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1875 transitions. [2022-11-20 10:39:57,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1875 transitions. [2022-11-20 10:39:57,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:57,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1875 transitions. [2022-11-20 10:39:57,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.5) internal successors, (1875), 6 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states 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 10:39:57,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 347.0) internal successors, (2429), 7 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states 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 10:39:57,877 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 347.0) internal successors, (2429), 7 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states 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 10:39:57,878 INFO L175 Difference]: Start difference. First operand has 307 places, 303 transitions, 692 flow. Second operand 6 states and 1875 transitions. [2022-11-20 10:39:57,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 302 transitions, 742 flow [2022-11-20 10:39:57,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 302 transitions, 738 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:39:57,885 INFO L231 Difference]: Finished difference. Result has 309 places, 302 transitions, 694 flow [2022-11-20 10:39:57,885 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=694, PETRI_PLACES=309, PETRI_TRANSITIONS=302} [2022-11-20 10:39:57,886 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -9 predicate places. [2022-11-20 10:39:57,886 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 302 transitions, 694 flow [2022-11-20 10:39:57,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 311.0) internal successors, (1866), 6 states have internal predecessors, (1866), 0 states have call successors, (0), 0 states 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 10:39:57,887 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:57,887 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 10:39:57,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 10:39:57,888 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:57,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:57,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2005792327, now seen corresponding path program 1 times [2022-11-20 10:39:57,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:57,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189744236] [2022-11-20 10:39:57,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:57,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:58,393 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 10:39:58,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:58,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189744236] [2022-11-20 10:39:58,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189744236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:58,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:58,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:39:58,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043067489] [2022-11-20 10:39:58,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:58,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:39:58,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:58,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:39:58,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:39:58,397 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 347 [2022-11-20 10:39:58,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 302 transitions, 694 flow. Second operand has 6 states, 6 states have (on average 312.0) internal successors, (1872), 6 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 10:39:58,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:58,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 347 [2022-11-20 10:39:58,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:58,727 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([941] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork2_thidvar1_4) (= 0 v_thread3Thread1of1ForFork2_thidvar3_4) (= 0 v_thread3Thread1of1ForFork2_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem33#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork2_thidvar0_4)) InVars {thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} OutVars{thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, ULTIMATE.start_main_#t~mem33#1=|v_ULTIMATE.start_main_#t~mem33#1_5|, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[][277], [395#(= |#race~length_4~0| 0), 376#(= |#race~length_2~0| 0), Black: 388#true, 71#L77-7true, Black: 393#true, 381#(= |#race~to_int_1~0| 0), 390#(= |#race~to_int_3~0| 0), Black: 369#true, 404#(= |#race~to_int_5~0| 0), Black: 402#true, 412#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 423#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 430#(and (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ |ULTIMATE.start_main_~#t3~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) |ULTIMATE.start_main_~#t3~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0)), Black: 374#true, 371#(= |#race~length_0~0| 0), Black: 379#true]) [2022-11-20 10:39:58,727 INFO L383 tUnfolder$Statistics]: this new event has 211 ancestors and is not cut-off event [2022-11-20 10:39:58,727 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-20 10:39:58,728 INFO L386 tUnfolder$Statistics]: existing Event has 239 ancestors and is not cut-off event [2022-11-20 10:39:58,728 INFO L386 tUnfolder$Statistics]: existing Event has 211 ancestors and is not cut-off event [2022-11-20 10:39:58,731 INFO L130 PetriNetUnfolder]: 46/1528 cut-off events. [2022-11-20 10:39:58,731 INFO L131 PetriNetUnfolder]: For 4/25 co-relation queries the response was YES. [2022-11-20 10:39:58,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1760 conditions, 1528 events. 46/1528 cut-off events. For 4/25 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10975 event pairs, 0 based on Foata normal form. 0/1418 useless extension candidates. Maximal degree in co-relation 1648. Up to 42 conditions per place. [2022-11-20 10:39:58,751 INFO L137 encePairwiseOnDemand]: 342/347 looper letters, 21 selfloop transitions, 4 changer transitions 0/301 dead transitions. [2022-11-20 10:39:58,752 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 301 transitions, 742 flow [2022-11-20 10:39:58,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:39:58,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:39:58,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1874 transitions. [2022-11-20 10:39:58,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9000960614793467 [2022-11-20 10:39:58,756 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1874 transitions. [2022-11-20 10:39:58,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1874 transitions. [2022-11-20 10:39:58,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:58,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1874 transitions. [2022-11-20 10:39:58,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.3333333333333) internal successors, (1874), 6 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states 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 10:39:58,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 347.0) internal successors, (2429), 7 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states 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 10:39:58,765 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 347.0) internal successors, (2429), 7 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states 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 10:39:58,765 INFO L175 Difference]: Start difference. First operand has 309 places, 302 transitions, 694 flow. Second operand 6 states and 1874 transitions. [2022-11-20 10:39:58,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 301 transitions, 742 flow [2022-11-20 10:39:58,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 301 transitions, 735 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:39:58,771 INFO L231 Difference]: Finished difference. Result has 309 places, 301 transitions, 693 flow [2022-11-20 10:39:58,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=685, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=693, PETRI_PLACES=309, PETRI_TRANSITIONS=301} [2022-11-20 10:39:58,772 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -9 predicate places. [2022-11-20 10:39:58,773 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 301 transitions, 693 flow [2022-11-20 10:39:58,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 312.0) internal successors, (1872), 6 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 10:39:58,773 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:58,774 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] [2022-11-20 10:39:58,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 10:39:58,774 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:58,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:58,775 INFO L85 PathProgramCache]: Analyzing trace with hash -2126330365, now seen corresponding path program 1 times [2022-11-20 10:39:58,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:58,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476141970] [2022-11-20 10:39:58,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:58,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:58,852 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 10:39:58,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:58,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476141970] [2022-11-20 10:39:58,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476141970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:58,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:58,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:58,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351955475] [2022-11-20 10:39:58,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:58,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:58,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:58,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:58,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:58,857 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 347 [2022-11-20 10:39:58,859 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 301 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states 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 10:39:58,859 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:58,859 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 347 [2022-11-20 10:39:58,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:59,268 INFO L130 PetriNetUnfolder]: 72/2125 cut-off events. [2022-11-20 10:39:59,269 INFO L131 PetriNetUnfolder]: For 13/29 co-relation queries the response was YES. [2022-11-20 10:39:59,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2432 conditions, 2125 events. 72/2125 cut-off events. For 13/29 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 17132 event pairs, 8 based on Foata normal form. 0/1985 useless extension candidates. Maximal degree in co-relation 2253. Up to 66 conditions per place. [2022-11-20 10:39:59,290 INFO L137 encePairwiseOnDemand]: 345/347 looper letters, 9 selfloop transitions, 1 changer transitions 0/300 dead transitions. [2022-11-20 10:39:59,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 300 transitions, 711 flow [2022-11-20 10:39:59,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:59,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:59,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 989 transitions. [2022-11-20 10:39:59,293 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9500480307396734 [2022-11-20 10:39:59,293 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 989 transitions. [2022-11-20 10:39:59,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 989 transitions. [2022-11-20 10:39:59,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:59,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 989 transitions. [2022-11-20 10:39:59,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 0 states 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 10:39:59,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:59,299 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:59,299 INFO L175 Difference]: Start difference. First operand has 309 places, 301 transitions, 693 flow. Second operand 3 states and 989 transitions. [2022-11-20 10:39:59,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 300 transitions, 711 flow [2022-11-20 10:39:59,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 300 transitions, 704 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:39:59,305 INFO L231 Difference]: Finished difference. Result has 306 places, 300 transitions, 686 flow [2022-11-20 10:39:59,306 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=306, PETRI_TRANSITIONS=300} [2022-11-20 10:39:59,306 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -12 predicate places. [2022-11-20 10:39:59,307 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 300 transitions, 686 flow [2022-11-20 10:39:59,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states 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 10:39:59,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:59,307 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] [2022-11-20 10:39:59,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 10:39:59,308 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:59,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:59,308 INFO L85 PathProgramCache]: Analyzing trace with hash 129937885, now seen corresponding path program 1 times [2022-11-20 10:39:59,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:59,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062796090] [2022-11-20 10:39:59,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:59,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:59,387 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 10:39:59,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:59,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062796090] [2022-11-20 10:39:59,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062796090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:59,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:59,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:59,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154732075] [2022-11-20 10:39:59,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:59,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:59,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:59,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:59,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:59,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 347 [2022-11-20 10:39:59,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 300 transitions, 686 flow. Second operand has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 10:39:59,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:59,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 347 [2022-11-20 10:39:59,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:39:59,790 INFO L130 PetriNetUnfolder]: 79/2286 cut-off events. [2022-11-20 10:39:59,791 INFO L131 PetriNetUnfolder]: For 21/44 co-relation queries the response was YES. [2022-11-20 10:39:59,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2636 conditions, 2286 events. 79/2286 cut-off events. For 21/44 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 19007 event pairs, 18 based on Foata normal form. 0/2143 useless extension candidates. Maximal degree in co-relation 2507. Up to 70 conditions per place. [2022-11-20 10:39:59,827 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 11 selfloop transitions, 1 changer transitions 0/298 dead transitions. [2022-11-20 10:39:59,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 298 transitions, 706 flow [2022-11-20 10:39:59,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:39:59,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:39:59,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 983 transitions. [2022-11-20 10:39:59,830 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9442843419788665 [2022-11-20 10:39:59,830 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 983 transitions. [2022-11-20 10:39:59,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 983 transitions. [2022-11-20 10:39:59,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:39:59,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 983 transitions. [2022-11-20 10:39:59,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.6666666666667) internal successors, (983), 3 states have internal predecessors, (983), 0 states have call successors, (0), 0 states 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 10:39:59,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:59,836 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:39:59,836 INFO L175 Difference]: Start difference. First operand has 306 places, 300 transitions, 686 flow. Second operand 3 states and 983 transitions. [2022-11-20 10:39:59,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 298 transitions, 706 flow [2022-11-20 10:39:59,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 298 transitions, 705 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:39:59,876 INFO L231 Difference]: Finished difference. Result has 305 places, 298 transitions, 683 flow [2022-11-20 10:39:59,876 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=683, PETRI_PLACES=305, PETRI_TRANSITIONS=298} [2022-11-20 10:39:59,876 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -13 predicate places. [2022-11-20 10:39:59,876 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 298 transitions, 683 flow [2022-11-20 10:39:59,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 10:39:59,877 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:39:59,877 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] [2022-11-20 10:39:59,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 10:39:59,877 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-20 10:39:59,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:59,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1611342744, now seen corresponding path program 1 times [2022-11-20 10:39:59,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:39:59,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037478633] [2022-11-20 10:39:59,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:39:59,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:39:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:59,959 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 10:39:59,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:39:59,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037478633] [2022-11-20 10:39:59,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037478633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:59,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:59,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:39:59,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050083037] [2022-11-20 10:39:59,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:59,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:59,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:39:59,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:59,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:59,963 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 347 [2022-11-20 10:39:59,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 298 transitions, 683 flow. Second operand has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 10:39:59,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:39:59,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 347 [2022-11-20 10:39:59,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:40:00,277 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([894] L55-25-->L55-26: Formula: (= |v_#race~result_8~0_1| |v_thread3Thread1of1ForFork2_#t~nondet12#1_3|) InVars {thread3Thread1of1ForFork2_#t~nondet12#1=|v_thread3Thread1of1ForFork2_#t~nondet12#1_3|} OutVars{thread3Thread1of1ForFork2_#t~nondet12#1=|v_thread3Thread1of1ForFork2_#t~nondet12#1_3|, #race~result_8~0=|v_#race~result_8~0_1|} AuxVars[] AssignedVars[#race~result_8~0][189], [395#(= |#race~length_4~0| 0), 436#true, 376#(= |#race~length_2~0| 0), Black: 388#true, 117#L76-7true, Black: 393#true, 440#true, 277#L55-26true, 381#(= |#race~to_int_1~0| 0), Black: 369#true, 390#(= |#race~to_int_3~0| 0), 404#(= |#race~to_int_5~0| 0), Black: 402#true, 412#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 423#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), Black: 374#true, 371#(= |#race~length_0~0| 0), Black: 379#true]) [2022-11-20 10:40:00,277 INFO L383 tUnfolder$Statistics]: this new event has 196 ancestors and is cut-off event [2022-11-20 10:40:00,277 INFO L386 tUnfolder$Statistics]: existing Event has 196 ancestors and is cut-off event [2022-11-20 10:40:00,278 INFO L386 tUnfolder$Statistics]: existing Event has 224 ancestors and is cut-off event [2022-11-20 10:40:00,278 INFO L386 tUnfolder$Statistics]: existing Event has 196 ancestors and is cut-off event [2022-11-20 10:40:00,292 INFO L130 PetriNetUnfolder]: 89/1788 cut-off events. [2022-11-20 10:40:00,292 INFO L131 PetriNetUnfolder]: For 53/69 co-relation queries the response was YES. [2022-11-20 10:40:00,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2156 conditions, 1788 events. 89/1788 cut-off events. For 53/69 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 13961 event pairs, 36 based on Foata normal form. 5/1680 useless extension candidates. Maximal degree in co-relation 2082. Up to 159 conditions per place. [2022-11-20 10:40:00,315 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 0 selfloop transitions, 0 changer transitions 296/296 dead transitions. [2022-11-20 10:40:00,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 296 transitions, 701 flow [2022-11-20 10:40:00,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:00,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:40:00,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 982 transitions. [2022-11-20 10:40:00,319 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9433237271853987 [2022-11-20 10:40:00,319 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 982 transitions. [2022-11-20 10:40:00,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 982 transitions. [2022-11-20 10:40:00,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:40:00,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 982 transitions. [2022-11-20 10:40:00,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states 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 10:40:00,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:40:00,325 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states 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 10:40:00,325 INFO L175 Difference]: Start difference. First operand has 305 places, 298 transitions, 683 flow. Second operand 3 states and 982 transitions. [2022-11-20 10:40:00,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 296 transitions, 701 flow [2022-11-20 10:40:00,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 296 transitions, 700 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:40:00,330 INFO L231 Difference]: Finished difference. Result has 304 places, 0 transitions, 0 flow [2022-11-20 10:40:00,330 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=304, PETRI_TRANSITIONS=0} [2022-11-20 10:40:00,331 INFO L288 CegarLoopForPetriNet]: 318 programPoint places, -14 predicate places. [2022-11-20 10:40:00,331 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 0 transitions, 0 flow [2022-11-20 10:40:00,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 10:40:00,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (52 of 53 remaining) [2022-11-20 10:40:00,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2022-11-20 10:40:00,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2022-11-20 10:40:00,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2022-11-20 10:40:00,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2022-11-20 10:40:00,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2022-11-20 10:40:00,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2022-11-20 10:40:00,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2022-11-20 10:40:00,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2022-11-20 10:40:00,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2022-11-20 10:40:00,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2022-11-20 10:40:00,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2022-11-20 10:40:00,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2022-11-20 10:40:00,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2022-11-20 10:40:00,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2022-11-20 10:40:00,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2022-11-20 10:40:00,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2022-11-20 10:40:00,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2022-11-20 10:40:00,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2022-11-20 10:40:00,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2022-11-20 10:40:00,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2022-11-20 10:40:00,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2022-11-20 10:40:00,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2022-11-20 10:40:00,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2022-11-20 10:40:00,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2022-11-20 10:40:00,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2022-11-20 10:40:00,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2022-11-20 10:40:00,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2022-11-20 10:40:00,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2022-11-20 10:40:00,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2022-11-20 10:40:00,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2022-11-20 10:40:00,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2022-11-20 10:40:00,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 53 remaining) [2022-11-20 10:40:00,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 53 remaining) [2022-11-20 10:40:00,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 53 remaining) [2022-11-20 10:40:00,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2022-11-20 10:40:00,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2022-11-20 10:40:00,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2022-11-20 10:40:00,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2022-11-20 10:40:00,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2022-11-20 10:40:00,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2022-11-20 10:40:00,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2022-11-20 10:40:00,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2022-11-20 10:40:00,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2022-11-20 10:40:00,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2022-11-20 10:40:00,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2022-11-20 10:40:00,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2022-11-20 10:40:00,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2022-11-20 10:40:00,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2022-11-20 10:40:00,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2022-11-20 10:40:00,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2022-11-20 10:40:00,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2022-11-20 10:40:00,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2022-11-20 10:40:00,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 10:40:00,346 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:00,353 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 10:40:00,353 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:40:00,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:40:00 BasicIcfg [2022-11-20 10:40:00,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:40:00,359 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:40:00,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:40:00,360 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:40:00,360 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:39:49" (3/4) ... [2022-11-20 10:40:00,363 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:40:00,369 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 10:40:00,369 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 10:40:00,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-20 10:40:00,376 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-20 10:40:00,377 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 10:40:00,377 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 10:40:00,378 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:40:00,433 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:40:00,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:40:00,434 INFO L158 Benchmark]: Toolchain (without parser) took 12557.79ms. Allocated memory was 195.0MB in the beginning and 362.8MB in the end (delta: 167.8MB). Free memory was 162.9MB in the beginning and 142.6MB in the end (delta: 20.3MB). Peak memory consumption was 188.6MB. Max. memory is 16.1GB. [2022-11-20 10:40:00,434 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:40:00,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.48ms. Allocated memory is still 195.0MB. Free memory was 162.9MB in the beginning and 151.1MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:40:00,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.93ms. Allocated memory is still 195.0MB. Free memory was 151.1MB in the beginning and 148.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:40:00,435 INFO L158 Benchmark]: Boogie Preprocessor took 54.54ms. Allocated memory is still 195.0MB. Free memory was 148.8MB in the beginning and 146.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:40:00,435 INFO L158 Benchmark]: RCFGBuilder took 813.02ms. Allocated memory is still 195.0MB. Free memory was 146.1MB in the beginning and 121.9MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-20 10:40:00,437 INFO L158 Benchmark]: TraceAbstraction took 11259.57ms. Allocated memory was 195.0MB in the beginning and 362.8MB in the end (delta: 167.8MB). Free memory was 120.9MB in the beginning and 146.8MB in the end (delta: -25.8MB). Peak memory consumption was 142.5MB. Max. memory is 16.1GB. [2022-11-20 10:40:00,437 INFO L158 Benchmark]: Witness Printer took 73.97ms. Allocated memory is still 362.8MB. Free memory was 146.8MB in the beginning and 142.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:40:00,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.48ms. Allocated memory is still 195.0MB. Free memory was 162.9MB in the beginning and 151.1MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.93ms. Allocated memory is still 195.0MB. Free memory was 151.1MB in the beginning and 148.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.54ms. Allocated memory is still 195.0MB. Free memory was 148.8MB in the beginning and 146.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 813.02ms. Allocated memory is still 195.0MB. Free memory was 146.1MB in the beginning and 121.9MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 11259.57ms. Allocated memory was 195.0MB in the beginning and 362.8MB in the end (delta: 167.8MB). Free memory was 120.9MB in the beginning and 146.8MB in the end (delta: -25.8MB). Peak memory consumption was 142.5MB. Max. memory is 16.1GB. * Witness Printer took 73.97ms. Allocated memory is still 362.8MB. Free memory was 146.8MB in the beginning and 142.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 507 locations, 53 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.0s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 99 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 175 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 464 IncrementalHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 175 mSDtfsCounter, 464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=697occurred in iteration=15, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1843 NumberOfCodeBlocks, 1843 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1822 ConstructedInterpolants, 0 QuantifiedInterpolants, 2101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 10:40:00,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb167e15-8083-41ec-91bd-ed7b4b12762f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE