./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro --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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- 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-8393723 [2022-11-18 21:04:01,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:04:01,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:04:01,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:04:01,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:04:01,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:04:01,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:04:01,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:04:01,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:04:01,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:04:01,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:04:01,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:04:01,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:04:01,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:04:01,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:04:01,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:04:01,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:04:01,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:04:01,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:04:01,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:04:01,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:04:01,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:04:01,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:04:01,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:04:01,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:04:01,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:04:01,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:04:01,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:04:01,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:04:01,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:04:01,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:04:01,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:04:01,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:04:01,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:04:01,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:04:01,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:04:01,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:04:01,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:04:01,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:04:01,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:04:01,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:04:01,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 21:04:01,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:04:01,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:04:01,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:04:01,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:04:01,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:04:01,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:04:01,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:04:01,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:04:01,259 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:04:01,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:04:01,260 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:04:01,261 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:04:01,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:04:01,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:04:01,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:04:01,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:04:01,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:04:01,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:04:01,263 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 21:04:01,263 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:04:01,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:04:01,263 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:04:01,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:04:01,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:04:01,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:04:01,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:04:01,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:04:01,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:04:01,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:04:01,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:04:01,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:04:01,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:04:01,267 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:04:01,273 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:04:01,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:04:01,273 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_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2022-11-18 21:04:01,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:04:01,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:04:01,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:04:01,679 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:04:01,683 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:04:01,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-11-18 21:04:01,772 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/data/41e118228/ed9d2b526eb244b184b6fde2d4b63ca0/FLAG60be0c64d [2022-11-18 21:04:02,460 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:04:02,461 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-11-18 21:04:02,477 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/data/41e118228/ed9d2b526eb244b184b6fde2d4b63ca0/FLAG60be0c64d [2022-11-18 21:04:02,734 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/data/41e118228/ed9d2b526eb244b184b6fde2d4b63ca0 [2022-11-18 21:04:02,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:04:02,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:04:02,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:04:02,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:04:02,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:04:02,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:04:02" (1/1) ... [2022-11-18 21:04:02,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a81ada3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:02, skipping insertion in model container [2022-11-18 21:04:02,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:04:02" (1/1) ... [2022-11-18 21:04:02,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:04:02,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:04:03,286 WARN L234 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_24f5e749-6b43-4ed0-8a59-47f38b3051d7/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-11-18 21:04:03,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:04:03,361 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:04:03,428 WARN L234 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_24f5e749-6b43-4ed0-8a59-47f38b3051d7/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-11-18 21:04:03,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:04:03,485 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:04:03,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:03 WrapperNode [2022-11-18 21:04:03,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:04:03,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:04:03,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:04:03,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:04:03,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:03" (1/1) ... [2022-11-18 21:04:03,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:03" (1/1) ... [2022-11-18 21:04:03,573 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-11-18 21:04:03,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:04:03,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:04:03,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:04:03,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:04:03,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:03" (1/1) ... [2022-11-18 21:04:03,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:03" (1/1) ... [2022-11-18 21:04:03,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:03" (1/1) ... [2022-11-18 21:04:03,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:03" (1/1) ... [2022-11-18 21:04:03,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:03" (1/1) ... [2022-11-18 21:04:03,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:03" (1/1) ... [2022-11-18 21:04:03,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:03" (1/1) ... [2022-11-18 21:04:03,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:03" (1/1) ... [2022-11-18 21:04:03,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:04:03,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:04:03,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:04:03,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:04:03,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:03" (1/1) ... [2022-11-18 21:04:03,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:04:03,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:04:03,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:04:03,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:04:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:04:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:04:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 21:04:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:04:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:04:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 21:04:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 21:04:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:04:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:04:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:04:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:04:03,747 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 21:04:03,949 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:04:03,951 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:04:04,361 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:04:04,373 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:04:04,373 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-18 21:04:04,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:04:04 BoogieIcfgContainer [2022-11-18 21:04:04,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:04:04,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:04:04,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:04:04,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:04:04,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:04:02" (1/3) ... [2022-11-18 21:04:04,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7a897d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:04:04, skipping insertion in model container [2022-11-18 21:04:04,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:03" (2/3) ... [2022-11-18 21:04:04,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7a897d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:04:04, skipping insertion in model container [2022-11-18 21:04:04,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:04:04" (3/3) ... [2022-11-18 21:04:04,389 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-11-18 21:04:04,401 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 21:04:04,414 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:04:04,415 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 21:04:04,415 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 21:04:04,547 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 21:04:04,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 149 transitions, 306 flow [2022-11-18 21:04:04,718 INFO L130 PetriNetUnfolder]: 9/148 cut-off events. [2022-11-18 21:04:04,719 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 21:04:04,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 148 events. 9/148 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 289 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 96. Up to 3 conditions per place. [2022-11-18 21:04:04,728 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 149 transitions, 306 flow [2022-11-18 21:04:04,735 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 138 transitions, 279 flow [2022-11-18 21:04:04,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:04:04,761 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;@474deb90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:04:04,762 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-18 21:04:04,817 INFO L130 PetriNetUnfolder]: 2/84 cut-off events. [2022-11-18 21:04:04,818 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:04:04,818 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:04,819 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] [2022-11-18 21:04:04,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:04,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:04,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1800181964, now seen corresponding path program 1 times [2022-11-18 21:04:04,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:04,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101939504] [2022-11-18 21:04:04,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:04,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:06,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:06,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:06,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101939504] [2022-11-18 21:04:06,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101939504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:06,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:06,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:04:06,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590231760] [2022-11-18 21:04:06,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:06,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:04:06,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:06,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:04:06,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:04:06,330 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 149 [2022-11-18 21:04:06,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 138 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:06,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:06,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 149 [2022-11-18 21:04:06,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:07,521 INFO L130 PetriNetUnfolder]: 474/1648 cut-off events. [2022-11-18 21:04:07,522 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 21:04:07,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2671 conditions, 1648 events. 474/1648 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10460 event pairs, 34 based on Foata normal form. 225/1692 useless extension candidates. Maximal degree in co-relation 2620. Up to 550 conditions per place. [2022-11-18 21:04:07,537 INFO L137 encePairwiseOnDemand]: 126/149 looper letters, 110 selfloop transitions, 37 changer transitions 0/234 dead transitions. [2022-11-18 21:04:07,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 234 transitions, 765 flow [2022-11-18 21:04:07,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:04:07,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:04:07,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 753 transitions. [2022-11-18 21:04:07,560 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8422818791946308 [2022-11-18 21:04:07,562 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 753 transitions. [2022-11-18 21:04:07,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 753 transitions. [2022-11-18 21:04:07,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:07,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 753 transitions. [2022-11-18 21:04:07,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:07,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:07,588 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:07,591 INFO L175 Difference]: Start difference. First operand has 133 places, 138 transitions, 279 flow. Second operand 6 states and 753 transitions. [2022-11-18 21:04:07,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 234 transitions, 765 flow [2022-11-18 21:04:07,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 234 transitions, 764 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:04:07,604 INFO L231 Difference]: Finished difference. Result has 141 places, 164 transitions, 504 flow [2022-11-18 21:04:07,607 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=141, PETRI_TRANSITIONS=164} [2022-11-18 21:04:07,611 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 8 predicate places. [2022-11-18 21:04:07,612 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 164 transitions, 504 flow [2022-11-18 21:04:07,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:07,613 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:07,614 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:07,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:04:07,615 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:07,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:07,616 INFO L85 PathProgramCache]: Analyzing trace with hash -583844046, now seen corresponding path program 1 times [2022-11-18 21:04:07,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:07,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047560279] [2022-11-18 21:04:07,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:07,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:08,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:08,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:08,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047560279] [2022-11-18 21:04:08,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047560279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:08,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:08,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:04:08,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403766597] [2022-11-18 21:04:08,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:08,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:04:08,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:08,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:04:08,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:04:08,222 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 149 [2022-11-18 21:04:08,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 164 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:08,226 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:08,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 149 [2022-11-18 21:04:08,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:08,998 INFO L130 PetriNetUnfolder]: 494/1663 cut-off events. [2022-11-18 21:04:08,998 INFO L131 PetriNetUnfolder]: For 544/544 co-relation queries the response was YES. [2022-11-18 21:04:09,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3364 conditions, 1663 events. 494/1663 cut-off events. For 544/544 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10166 event pairs, 160 based on Foata normal form. 0/1527 useless extension candidates. Maximal degree in co-relation 3312. Up to 645 conditions per place. [2022-11-18 21:04:09,015 INFO L137 encePairwiseOnDemand]: 137/149 looper letters, 122 selfloop transitions, 18 changer transitions 0/226 dead transitions. [2022-11-18 21:04:09,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 226 transitions, 1028 flow [2022-11-18 21:04:09,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:04:09,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:04:09,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 666 transitions. [2022-11-18 21:04:09,018 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7449664429530202 [2022-11-18 21:04:09,018 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 666 transitions. [2022-11-18 21:04:09,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 666 transitions. [2022-11-18 21:04:09,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:09,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 666 transitions. [2022-11-18 21:04:09,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:09,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:09,027 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:09,027 INFO L175 Difference]: Start difference. First operand has 141 places, 164 transitions, 504 flow. Second operand 6 states and 666 transitions. [2022-11-18 21:04:09,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 226 transitions, 1028 flow [2022-11-18 21:04:09,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 226 transitions, 1028 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:04:09,047 INFO L231 Difference]: Finished difference. Result has 144 places, 162 transitions, 536 flow [2022-11-18 21:04:09,048 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=536, PETRI_PLACES=144, PETRI_TRANSITIONS=162} [2022-11-18 21:04:09,049 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 11 predicate places. [2022-11-18 21:04:09,049 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 162 transitions, 536 flow [2022-11-18 21:04:09,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:09,050 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:09,051 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:09,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:04:09,052 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:09,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:09,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1803013028, now seen corresponding path program 1 times [2022-11-18 21:04:09,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:09,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113712093] [2022-11-18 21:04:09,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:09,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:09,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:09,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113712093] [2022-11-18 21:04:09,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113712093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:09,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:09,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:04:09,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338625389] [2022-11-18 21:04:09,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:09,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:04:09,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:09,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:04:09,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:04:09,599 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 149 [2022-11-18 21:04:09,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 162 transitions, 536 flow. Second operand has 6 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:09,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:09,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 149 [2022-11-18 21:04:09,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:10,539 INFO L130 PetriNetUnfolder]: 591/1957 cut-off events. [2022-11-18 21:04:10,539 INFO L131 PetriNetUnfolder]: For 707/707 co-relation queries the response was YES. [2022-11-18 21:04:10,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4139 conditions, 1957 events. 591/1957 cut-off events. For 707/707 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 12509 event pairs, 297 based on Foata normal form. 0/1800 useless extension candidates. Maximal degree in co-relation 4086. Up to 1148 conditions per place. [2022-11-18 21:04:10,555 INFO L137 encePairwiseOnDemand]: 134/149 looper letters, 90 selfloop transitions, 48 changer transitions 0/222 dead transitions. [2022-11-18 21:04:10,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 222 transitions, 1028 flow [2022-11-18 21:04:10,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:04:10,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:04:10,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 660 transitions. [2022-11-18 21:04:10,560 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.738255033557047 [2022-11-18 21:04:10,560 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 660 transitions. [2022-11-18 21:04:10,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 660 transitions. [2022-11-18 21:04:10,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:10,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 660 transitions. [2022-11-18 21:04:10,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:10,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:10,568 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:10,568 INFO L175 Difference]: Start difference. First operand has 144 places, 162 transitions, 536 flow. Second operand 6 states and 660 transitions. [2022-11-18 21:04:10,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 222 transitions, 1028 flow [2022-11-18 21:04:10,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 222 transitions, 992 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 21:04:10,583 INFO L231 Difference]: Finished difference. Result has 149 places, 205 transitions, 888 flow [2022-11-18 21:04:10,583 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=888, PETRI_PLACES=149, PETRI_TRANSITIONS=205} [2022-11-18 21:04:10,587 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 16 predicate places. [2022-11-18 21:04:10,587 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 205 transitions, 888 flow [2022-11-18 21:04:10,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:10,588 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:10,588 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] [2022-11-18 21:04:10,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:04:10,589 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:10,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:10,590 INFO L85 PathProgramCache]: Analyzing trace with hash 191733502, now seen corresponding path program 1 times [2022-11-18 21:04:10,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:10,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988687458] [2022-11-18 21:04:10,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:10,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:11,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:11,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:11,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988687458] [2022-11-18 21:04:11,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988687458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:11,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:11,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:04:11,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491331153] [2022-11-18 21:04:11,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:11,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:04:11,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:11,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:04:11,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:04:11,061 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 149 [2022-11-18 21:04:11,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 205 transitions, 888 flow. Second operand has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:11,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:11,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 149 [2022-11-18 21:04:11,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:12,017 INFO L130 PetriNetUnfolder]: 580/1918 cut-off events. [2022-11-18 21:04:12,017 INFO L131 PetriNetUnfolder]: For 1203/1209 co-relation queries the response was YES. [2022-11-18 21:04:12,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4717 conditions, 1918 events. 580/1918 cut-off events. For 1203/1209 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 12514 event pairs, 124 based on Foata normal form. 0/1817 useless extension candidates. Maximal degree in co-relation 4657. Up to 873 conditions per place. [2022-11-18 21:04:12,034 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 165 selfloop transitions, 75 changer transitions 4/332 dead transitions. [2022-11-18 21:04:12,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 332 transitions, 1940 flow [2022-11-18 21:04:12,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:04:12,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:04:12,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2022-11-18 21:04:12,038 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.785234899328859 [2022-11-18 21:04:12,038 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 702 transitions. [2022-11-18 21:04:12,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 702 transitions. [2022-11-18 21:04:12,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:12,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 702 transitions. [2022-11-18 21:04:12,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:12,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:12,051 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:12,052 INFO L175 Difference]: Start difference. First operand has 149 places, 205 transitions, 888 flow. Second operand 6 states and 702 transitions. [2022-11-18 21:04:12,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 332 transitions, 1940 flow [2022-11-18 21:04:12,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 332 transitions, 1922 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-18 21:04:12,070 INFO L231 Difference]: Finished difference. Result has 159 places, 275 transitions, 1646 flow [2022-11-18 21:04:12,070 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1646, PETRI_PLACES=159, PETRI_TRANSITIONS=275} [2022-11-18 21:04:12,073 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 26 predicate places. [2022-11-18 21:04:12,073 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 275 transitions, 1646 flow [2022-11-18 21:04:12,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:12,075 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:12,076 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] [2022-11-18 21:04:12,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:04:12,077 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:12,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:12,080 INFO L85 PathProgramCache]: Analyzing trace with hash 3619126, now seen corresponding path program 1 times [2022-11-18 21:04:12,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:12,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435730354] [2022-11-18 21:04:12,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:12,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:12,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:12,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:12,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435730354] [2022-11-18 21:04:12,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435730354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:12,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:12,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:04:12,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322619517] [2022-11-18 21:04:12,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:12,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:04:12,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:12,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:04:12,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:04:12,462 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 149 [2022-11-18 21:04:12,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 275 transitions, 1646 flow. Second operand has 6 states, 6 states have (on average 117.83333333333333) internal successors, (707), 6 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:12,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:12,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 149 [2022-11-18 21:04:12,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:12,692 INFO L130 PetriNetUnfolder]: 90/572 cut-off events. [2022-11-18 21:04:12,692 INFO L131 PetriNetUnfolder]: For 498/546 co-relation queries the response was YES. [2022-11-18 21:04:12,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 572 events. 90/572 cut-off events. For 498/546 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2450 event pairs, 3 based on Foata normal form. 8/569 useless extension candidates. Maximal degree in co-relation 1296. Up to 112 conditions per place. [2022-11-18 21:04:12,697 INFO L137 encePairwiseOnDemand]: 143/149 looper letters, 17 selfloop transitions, 6 changer transitions 1/189 dead transitions. [2022-11-18 21:04:12,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 189 transitions, 964 flow [2022-11-18 21:04:12,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:04:12,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 21:04:12,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 600 transitions. [2022-11-18 21:04:12,700 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8053691275167785 [2022-11-18 21:04:12,700 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 600 transitions. [2022-11-18 21:04:12,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 600 transitions. [2022-11-18 21:04:12,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:12,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 600 transitions. [2022-11-18 21:04:12,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:12,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:12,707 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:12,707 INFO L175 Difference]: Start difference. First operand has 159 places, 275 transitions, 1646 flow. Second operand 5 states and 600 transitions. [2022-11-18 21:04:12,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 189 transitions, 964 flow [2022-11-18 21:04:12,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 189 transitions, 836 flow, removed 55 selfloop flow, removed 7 redundant places. [2022-11-18 21:04:12,720 INFO L231 Difference]: Finished difference. Result has 155 places, 188 transitions, 800 flow [2022-11-18 21:04:12,720 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=800, PETRI_PLACES=155, PETRI_TRANSITIONS=188} [2022-11-18 21:04:12,724 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 22 predicate places. [2022-11-18 21:04:12,724 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 188 transitions, 800 flow [2022-11-18 21:04:12,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.83333333333333) internal successors, (707), 6 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:12,725 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:12,726 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] [2022-11-18 21:04:12,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:04:12,726 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:12,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:12,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1955427445, now seen corresponding path program 1 times [2022-11-18 21:04:12,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:12,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932651230] [2022-11-18 21:04:12,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:12,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:13,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:13,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:13,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932651230] [2022-11-18 21:04:13,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932651230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:13,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:13,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:04:13,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671698416] [2022-11-18 21:04:13,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:13,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:04:13,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:13,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:04:13,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:04:13,281 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 149 [2022-11-18 21:04:13,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 188 transitions, 800 flow. Second operand has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:13,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:13,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 149 [2022-11-18 21:04:13,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:13,745 INFO L130 PetriNetUnfolder]: 304/965 cut-off events. [2022-11-18 21:04:13,746 INFO L131 PetriNetUnfolder]: For 809/809 co-relation queries the response was YES. [2022-11-18 21:04:13,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2791 conditions, 965 events. 304/965 cut-off events. For 809/809 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4327 event pairs, 110 based on Foata normal form. 0/944 useless extension candidates. Maximal degree in co-relation 2730. Up to 651 conditions per place. [2022-11-18 21:04:13,753 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 99 selfloop transitions, 26 changer transitions 15/224 dead transitions. [2022-11-18 21:04:13,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 224 transitions, 1286 flow [2022-11-18 21:04:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:04:13,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:04:13,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 635 transitions. [2022-11-18 21:04:13,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7102908277404921 [2022-11-18 21:04:13,757 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 635 transitions. [2022-11-18 21:04:13,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 635 transitions. [2022-11-18 21:04:13,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:13,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 635 transitions. [2022-11-18 21:04:13,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:13,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:13,763 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:13,763 INFO L175 Difference]: Start difference. First operand has 155 places, 188 transitions, 800 flow. Second operand 6 states and 635 transitions. [2022-11-18 21:04:13,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 224 transitions, 1286 flow [2022-11-18 21:04:13,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 224 transitions, 1273 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 21:04:13,777 INFO L231 Difference]: Finished difference. Result has 160 places, 205 transitions, 1005 flow [2022-11-18 21:04:13,777 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1005, PETRI_PLACES=160, PETRI_TRANSITIONS=205} [2022-11-18 21:04:13,778 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 27 predicate places. [2022-11-18 21:04:13,778 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 205 transitions, 1005 flow [2022-11-18 21:04:13,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:13,779 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:13,780 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:13,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:04:13,780 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:13,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:13,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1637126580, now seen corresponding path program 1 times [2022-11-18 21:04:13,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:13,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105201752] [2022-11-18 21:04:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:13,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:14,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:14,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:14,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105201752] [2022-11-18 21:04:14,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105201752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:14,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:14,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 21:04:14,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572795462] [2022-11-18 21:04:14,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:14,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 21:04:14,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:14,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 21:04:14,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-18 21:04:14,625 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2022-11-18 21:04:14,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 205 transitions, 1005 flow. Second operand has 12 states, 12 states have (on average 79.83333333333333) internal successors, (958), 12 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:14,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:14,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2022-11-18 21:04:14,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:15,560 INFO L130 PetriNetUnfolder]: 324/1036 cut-off events. [2022-11-18 21:04:15,560 INFO L131 PetriNetUnfolder]: For 1454/1463 co-relation queries the response was YES. [2022-11-18 21:04:15,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3207 conditions, 1036 events. 324/1036 cut-off events. For 1454/1463 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4588 event pairs, 35 based on Foata normal form. 11/1040 useless extension candidates. Maximal degree in co-relation 3133. Up to 533 conditions per place. [2022-11-18 21:04:15,571 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 156 selfloop transitions, 30 changer transitions 10/267 dead transitions. [2022-11-18 21:04:15,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 267 transitions, 1785 flow [2022-11-18 21:04:15,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:04:15,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 21:04:15,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 953 transitions. [2022-11-18 21:04:15,577 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5814521049420378 [2022-11-18 21:04:15,577 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 953 transitions. [2022-11-18 21:04:15,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 953 transitions. [2022-11-18 21:04:15,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:15,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 953 transitions. [2022-11-18 21:04:15,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.63636363636364) internal successors, (953), 11 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:15,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:15,591 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:15,591 INFO L175 Difference]: Start difference. First operand has 160 places, 205 transitions, 1005 flow. Second operand 11 states and 953 transitions. [2022-11-18 21:04:15,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 267 transitions, 1785 flow [2022-11-18 21:04:15,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 267 transitions, 1727 flow, removed 25 selfloop flow, removed 1 redundant places. [2022-11-18 21:04:15,614 INFO L231 Difference]: Finished difference. Result has 168 places, 204 transitions, 1005 flow [2022-11-18 21:04:15,614 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1005, PETRI_PLACES=168, PETRI_TRANSITIONS=204} [2022-11-18 21:04:15,616 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 35 predicate places. [2022-11-18 21:04:15,616 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 204 transitions, 1005 flow [2022-11-18 21:04:15,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 79.83333333333333) internal successors, (958), 12 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:15,618 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:15,618 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:15,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:04:15,618 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:15,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:15,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1248037642, now seen corresponding path program 1 times [2022-11-18 21:04:15,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:15,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864785588] [2022-11-18 21:04:15,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:15,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:16,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:16,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:16,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864785588] [2022-11-18 21:04:16,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864785588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:16,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:16,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:04:16,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474960278] [2022-11-18 21:04:16,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:16,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:04:16,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:16,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:04:16,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:04:16,653 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-18 21:04:16,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 204 transitions, 1005 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:16,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:16,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-18 21:04:16,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:18,410 INFO L130 PetriNetUnfolder]: 361/1211 cut-off events. [2022-11-18 21:04:18,410 INFO L131 PetriNetUnfolder]: For 1499/1503 co-relation queries the response was YES. [2022-11-18 21:04:18,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3807 conditions, 1211 events. 361/1211 cut-off events. For 1499/1503 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5914 event pairs, 56 based on Foata normal form. 19/1226 useless extension candidates. Maximal degree in co-relation 3730. Up to 476 conditions per place. [2022-11-18 21:04:18,420 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 163 selfloop transitions, 52 changer transitions 37/326 dead transitions. [2022-11-18 21:04:18,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 326 transitions, 1989 flow [2022-11-18 21:04:18,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:04:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 21:04:18,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1146 transitions. [2022-11-18 21:04:18,425 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6409395973154363 [2022-11-18 21:04:18,425 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1146 transitions. [2022-11-18 21:04:18,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1146 transitions. [2022-11-18 21:04:18,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:18,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1146 transitions. [2022-11-18 21:04:18,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 95.5) internal successors, (1146), 12 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:18,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:18,435 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:18,435 INFO L175 Difference]: Start difference. First operand has 168 places, 204 transitions, 1005 flow. Second operand 12 states and 1146 transitions. [2022-11-18 21:04:18,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 326 transitions, 1989 flow [2022-11-18 21:04:18,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 326 transitions, 1903 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-11-18 21:04:18,458 INFO L231 Difference]: Finished difference. Result has 176 places, 212 transitions, 1256 flow [2022-11-18 21:04:18,458 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1256, PETRI_PLACES=176, PETRI_TRANSITIONS=212} [2022-11-18 21:04:18,461 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 43 predicate places. [2022-11-18 21:04:18,462 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 212 transitions, 1256 flow [2022-11-18 21:04:18,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:18,463 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:18,463 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:18,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 21:04:18,464 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:18,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:18,465 INFO L85 PathProgramCache]: Analyzing trace with hash -100283934, now seen corresponding path program 2 times [2022-11-18 21:04:18,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:18,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939265760] [2022-11-18 21:04:18,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:18,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:19,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:19,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939265760] [2022-11-18 21:04:19,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939265760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:19,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:19,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 21:04:19,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90931114] [2022-11-18 21:04:19,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:19,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 21:04:19,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:19,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 21:04:19,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-18 21:04:19,143 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-18 21:04:19,144 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 212 transitions, 1256 flow. Second operand has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 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) [2022-11-18 21:04:19,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:19,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-18 21:04:19,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:20,538 INFO L130 PetriNetUnfolder]: 468/1405 cut-off events. [2022-11-18 21:04:20,538 INFO L131 PetriNetUnfolder]: For 3440/3446 co-relation queries the response was YES. [2022-11-18 21:04:20,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5152 conditions, 1405 events. 468/1405 cut-off events. For 3440/3446 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7043 event pairs, 24 based on Foata normal form. 32/1434 useless extension candidates. Maximal degree in co-relation 5068. Up to 436 conditions per place. [2022-11-18 21:04:20,552 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 241 selfloop transitions, 45 changer transitions 39/399 dead transitions. [2022-11-18 21:04:20,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 399 transitions, 2936 flow [2022-11-18 21:04:20,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:04:20,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 21:04:20,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1127 transitions. [2022-11-18 21:04:20,556 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6303131991051454 [2022-11-18 21:04:20,557 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1127 transitions. [2022-11-18 21:04:20,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1127 transitions. [2022-11-18 21:04:20,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:20,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1127 transitions. [2022-11-18 21:04:20,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 93.91666666666667) internal successors, (1127), 12 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:20,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:20,569 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:20,569 INFO L175 Difference]: Start difference. First operand has 176 places, 212 transitions, 1256 flow. Second operand 12 states and 1127 transitions. [2022-11-18 21:04:20,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 399 transitions, 2936 flow [2022-11-18 21:04:20,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 399 transitions, 2927 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-18 21:04:20,614 INFO L231 Difference]: Finished difference. Result has 186 places, 237 transitions, 1668 flow [2022-11-18 21:04:20,615 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1247, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1668, PETRI_PLACES=186, PETRI_TRANSITIONS=237} [2022-11-18 21:04:20,616 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 53 predicate places. [2022-11-18 21:04:20,616 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 237 transitions, 1668 flow [2022-11-18 21:04:20,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 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) [2022-11-18 21:04:20,617 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:20,617 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:20,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 21:04:20,618 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:20,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:20,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1949927790, now seen corresponding path program 3 times [2022-11-18 21:04:20,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:20,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708106524] [2022-11-18 21:04:20,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:20,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:21,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:21,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:21,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708106524] [2022-11-18 21:04:21,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708106524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:21,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:21,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:04:21,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928108735] [2022-11-18 21:04:21,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:21,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:04:21,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:21,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:04:21,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:04:21,392 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-18 21:04:21,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 237 transitions, 1668 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:21,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:21,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-18 21:04:21,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:23,425 INFO L130 PetriNetUnfolder]: 488/1574 cut-off events. [2022-11-18 21:04:23,426 INFO L131 PetriNetUnfolder]: For 5939/5943 co-relation queries the response was YES. [2022-11-18 21:04:23,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6459 conditions, 1574 events. 488/1574 cut-off events. For 5939/5943 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 8605 event pairs, 58 based on Foata normal form. 30/1600 useless extension candidates. Maximal degree in co-relation 6370. Up to 636 conditions per place. [2022-11-18 21:04:23,443 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 208 selfloop transitions, 58 changer transitions 51/391 dead transitions. [2022-11-18 21:04:23,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 391 transitions, 2971 flow [2022-11-18 21:04:23,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:04:23,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 21:04:23,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1165 transitions. [2022-11-18 21:04:23,448 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.651565995525727 [2022-11-18 21:04:23,448 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1165 transitions. [2022-11-18 21:04:23,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1165 transitions. [2022-11-18 21:04:23,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:23,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1165 transitions. [2022-11-18 21:04:23,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.08333333333333) internal successors, (1165), 12 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:23,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:23,457 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:23,458 INFO L175 Difference]: Start difference. First operand has 186 places, 237 transitions, 1668 flow. Second operand 12 states and 1165 transitions. [2022-11-18 21:04:23,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 391 transitions, 2971 flow [2022-11-18 21:04:23,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 391 transitions, 2959 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 21:04:23,530 INFO L231 Difference]: Finished difference. Result has 196 places, 246 transitions, 1975 flow [2022-11-18 21:04:23,531 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1659, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1975, PETRI_PLACES=196, PETRI_TRANSITIONS=246} [2022-11-18 21:04:23,537 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 63 predicate places. [2022-11-18 21:04:23,538 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 246 transitions, 1975 flow [2022-11-18 21:04:23,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:23,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:23,540 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:23,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 21:04:23,546 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:23,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:23,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1181569920, now seen corresponding path program 4 times [2022-11-18 21:04:23,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:23,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401312350] [2022-11-18 21:04:23,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:23,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:24,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:24,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:24,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401312350] [2022-11-18 21:04:24,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401312350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:24,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:24,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:04:24,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237616015] [2022-11-18 21:04:24,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:24,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:04:24,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:24,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:04:24,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:04:24,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-18 21:04:24,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 246 transitions, 1975 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:24,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:24,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-18 21:04:24,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:26,102 INFO L130 PetriNetUnfolder]: 461/1535 cut-off events. [2022-11-18 21:04:26,102 INFO L131 PetriNetUnfolder]: For 7242/7246 co-relation queries the response was YES. [2022-11-18 21:04:26,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6747 conditions, 1535 events. 461/1535 cut-off events. For 7242/7246 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 8453 event pairs, 64 based on Foata normal form. 19/1549 useless extension candidates. Maximal degree in co-relation 6653. Up to 613 conditions per place. [2022-11-18 21:04:26,125 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 170 selfloop transitions, 65 changer transitions 41/350 dead transitions. [2022-11-18 21:04:26,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 350 transitions, 2915 flow [2022-11-18 21:04:26,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:04:26,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 21:04:26,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1055 transitions. [2022-11-18 21:04:26,129 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6436851738865161 [2022-11-18 21:04:26,129 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1055 transitions. [2022-11-18 21:04:26,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1055 transitions. [2022-11-18 21:04:26,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:26,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1055 transitions. [2022-11-18 21:04:26,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 95.9090909090909) internal successors, (1055), 11 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:26,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:26,139 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:26,139 INFO L175 Difference]: Start difference. First operand has 196 places, 246 transitions, 1975 flow. Second operand 11 states and 1055 transitions. [2022-11-18 21:04:26,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 350 transitions, 2915 flow [2022-11-18 21:04:26,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 350 transitions, 2859 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-18 21:04:26,222 INFO L231 Difference]: Finished difference. Result has 203 places, 246 transitions, 2074 flow [2022-11-18 21:04:26,223 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1923, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2074, PETRI_PLACES=203, PETRI_TRANSITIONS=246} [2022-11-18 21:04:26,224 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 70 predicate places. [2022-11-18 21:04:26,224 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 246 transitions, 2074 flow [2022-11-18 21:04:26,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:26,225 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:26,226 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:26,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 21:04:26,226 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:26,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:26,227 INFO L85 PathProgramCache]: Analyzing trace with hash 232449696, now seen corresponding path program 5 times [2022-11-18 21:04:26,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:26,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832044050] [2022-11-18 21:04:26,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:26,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:26,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:26,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:26,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832044050] [2022-11-18 21:04:26,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832044050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:26,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:26,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:04:26,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144229102] [2022-11-18 21:04:26,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:26,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:04:26,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:26,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:04:26,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:04:26,887 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-18 21:04:26,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 246 transitions, 2074 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:26,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:26,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-18 21:04:26,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:28,915 INFO L130 PetriNetUnfolder]: 656/2085 cut-off events. [2022-11-18 21:04:28,916 INFO L131 PetriNetUnfolder]: For 14729/14734 co-relation queries the response was YES. [2022-11-18 21:04:28,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9509 conditions, 2085 events. 656/2085 cut-off events. For 14729/14734 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 12677 event pairs, 90 based on Foata normal form. 31/2104 useless extension candidates. Maximal degree in co-relation 9412. Up to 629 conditions per place. [2022-11-18 21:04:28,983 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 281 selfloop transitions, 77 changer transitions 56/488 dead transitions. [2022-11-18 21:04:28,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 488 transitions, 4504 flow [2022-11-18 21:04:28,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:04:28,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 21:04:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1170 transitions. [2022-11-18 21:04:28,992 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6543624161073825 [2022-11-18 21:04:28,992 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1170 transitions. [2022-11-18 21:04:28,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1170 transitions. [2022-11-18 21:04:28,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:28,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1170 transitions. [2022-11-18 21:04:28,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.5) internal successors, (1170), 12 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:29,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:29,006 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:29,007 INFO L175 Difference]: Start difference. First operand has 203 places, 246 transitions, 2074 flow. Second operand 12 states and 1170 transitions. [2022-11-18 21:04:29,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 488 transitions, 4504 flow [2022-11-18 21:04:29,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 488 transitions, 4385 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-11-18 21:04:29,108 INFO L231 Difference]: Finished difference. Result has 209 places, 284 transitions, 2800 flow [2022-11-18 21:04:29,108 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1991, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2800, PETRI_PLACES=209, PETRI_TRANSITIONS=284} [2022-11-18 21:04:29,110 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 76 predicate places. [2022-11-18 21:04:29,110 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 284 transitions, 2800 flow [2022-11-18 21:04:29,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:29,111 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:29,112 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:29,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 21:04:29,112 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:29,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:29,113 INFO L85 PathProgramCache]: Analyzing trace with hash -359102880, now seen corresponding path program 6 times [2022-11-18 21:04:29,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:29,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500516887] [2022-11-18 21:04:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:29,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:29,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:29,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:29,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500516887] [2022-11-18 21:04:29,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500516887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:29,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:29,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:04:29,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872050294] [2022-11-18 21:04:29,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:29,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:04:29,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:29,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:04:29,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:04:29,841 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-18 21:04:29,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 284 transitions, 2800 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:29,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:29,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-18 21:04:29,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:32,236 INFO L130 PetriNetUnfolder]: 676/2192 cut-off events. [2022-11-18 21:04:32,236 INFO L131 PetriNetUnfolder]: For 19883/19888 co-relation queries the response was YES. [2022-11-18 21:04:32,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10407 conditions, 2192 events. 676/2192 cut-off events. For 19883/19888 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 13813 event pairs, 97 based on Foata normal form. 31/2215 useless extension candidates. Maximal degree in co-relation 10305. Up to 931 conditions per place. [2022-11-18 21:04:32,264 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 225 selfloop transitions, 84 changer transitions 53/436 dead transitions. [2022-11-18 21:04:32,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 436 transitions, 4314 flow [2022-11-18 21:04:32,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 21:04:32,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 21:04:32,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1240 transitions. [2022-11-18 21:04:32,273 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6401652039235932 [2022-11-18 21:04:32,273 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1240 transitions. [2022-11-18 21:04:32,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1240 transitions. [2022-11-18 21:04:32,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:32,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1240 transitions. [2022-11-18 21:04:32,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 95.38461538461539) internal successors, (1240), 13 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:32,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:32,284 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:32,285 INFO L175 Difference]: Start difference. First operand has 209 places, 284 transitions, 2800 flow. Second operand 13 states and 1240 transitions. [2022-11-18 21:04:32,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 436 transitions, 4314 flow [2022-11-18 21:04:32,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 436 transitions, 4221 flow, removed 39 selfloop flow, removed 5 redundant places. [2022-11-18 21:04:32,462 INFO L231 Difference]: Finished difference. Result has 223 places, 294 transitions, 3193 flow [2022-11-18 21:04:32,462 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2713, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3193, PETRI_PLACES=223, PETRI_TRANSITIONS=294} [2022-11-18 21:04:32,464 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 90 predicate places. [2022-11-18 21:04:32,464 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 294 transitions, 3193 flow [2022-11-18 21:04:32,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:32,475 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:32,476 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:32,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 21:04:32,476 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:32,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:32,477 INFO L85 PathProgramCache]: Analyzing trace with hash -626651588, now seen corresponding path program 7 times [2022-11-18 21:04:32,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:32,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499351818] [2022-11-18 21:04:32,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:32,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:33,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:33,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:33,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499351818] [2022-11-18 21:04:33,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499351818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:33,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:33,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:04:33,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032236669] [2022-11-18 21:04:33,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:33,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:04:33,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:33,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:04:33,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:04:33,151 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-18 21:04:33,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 294 transitions, 3193 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:33,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:33,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-18 21:04:33,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:35,196 INFO L130 PetriNetUnfolder]: 604/2064 cut-off events. [2022-11-18 21:04:35,196 INFO L131 PetriNetUnfolder]: For 21956/21961 co-relation queries the response was YES. [2022-11-18 21:04:35,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10139 conditions, 2064 events. 604/2064 cut-off events. For 21956/21961 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 13033 event pairs, 89 based on Foata normal form. 31/2083 useless extension candidates. Maximal degree in co-relation 10031. Up to 820 conditions per place. [2022-11-18 21:04:35,218 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 260 selfloop transitions, 81 changer transitions 60/475 dead transitions. [2022-11-18 21:04:35,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 475 transitions, 5016 flow [2022-11-18 21:04:35,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:04:35,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 21:04:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1167 transitions. [2022-11-18 21:04:35,222 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6526845637583892 [2022-11-18 21:04:35,222 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1167 transitions. [2022-11-18 21:04:35,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1167 transitions. [2022-11-18 21:04:35,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:35,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1167 transitions. [2022-11-18 21:04:35,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.25) internal successors, (1167), 12 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:35,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:35,233 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:35,233 INFO L175 Difference]: Start difference. First operand has 223 places, 294 transitions, 3193 flow. Second operand 12 states and 1167 transitions. [2022-11-18 21:04:35,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 475 transitions, 5016 flow [2022-11-18 21:04:35,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 475 transitions, 4821 flow, removed 18 selfloop flow, removed 8 redundant places. [2022-11-18 21:04:35,420 INFO L231 Difference]: Finished difference. Result has 230 places, 313 transitions, 3567 flow [2022-11-18 21:04:35,421 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=3013, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3567, PETRI_PLACES=230, PETRI_TRANSITIONS=313} [2022-11-18 21:04:35,422 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 97 predicate places. [2022-11-18 21:04:35,422 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 313 transitions, 3567 flow [2022-11-18 21:04:35,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:35,423 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:35,423 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:35,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 21:04:35,424 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:35,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:35,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2101867330, now seen corresponding path program 8 times [2022-11-18 21:04:35,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:35,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199944213] [2022-11-18 21:04:35,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:35,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:36,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:36,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:36,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199944213] [2022-11-18 21:04:36,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199944213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:36,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:36,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:04:36,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327794579] [2022-11-18 21:04:36,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:36,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:04:36,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:36,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:04:36,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:04:36,175 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-18 21:04:36,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 313 transitions, 3567 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:36,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:36,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-18 21:04:36,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:38,309 INFO L130 PetriNetUnfolder]: 745/2520 cut-off events. [2022-11-18 21:04:38,310 INFO L131 PetriNetUnfolder]: For 34868/34875 co-relation queries the response was YES. [2022-11-18 21:04:38,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12566 conditions, 2520 events. 745/2520 cut-off events. For 34868/34875 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17043 event pairs, 102 based on Foata normal form. 33/2538 useless extension candidates. Maximal degree in co-relation 12453. Up to 873 conditions per place. [2022-11-18 21:04:38,346 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 287 selfloop transitions, 96 changer transitions 53/510 dead transitions. [2022-11-18 21:04:38,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 510 transitions, 5799 flow [2022-11-18 21:04:38,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:04:38,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 21:04:38,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1162 transitions. [2022-11-18 21:04:38,350 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6498881431767338 [2022-11-18 21:04:38,350 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1162 transitions. [2022-11-18 21:04:38,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1162 transitions. [2022-11-18 21:04:38,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:38,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1162 transitions. [2022-11-18 21:04:38,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.83333333333333) internal successors, (1162), 12 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:38,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:38,357 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:38,358 INFO L175 Difference]: Start difference. First operand has 230 places, 313 transitions, 3567 flow. Second operand 12 states and 1162 transitions. [2022-11-18 21:04:38,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 510 transitions, 5799 flow [2022-11-18 21:04:38,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 510 transitions, 5659 flow, removed 46 selfloop flow, removed 6 redundant places. [2022-11-18 21:04:38,613 INFO L231 Difference]: Finished difference. Result has 241 places, 339 transitions, 4219 flow [2022-11-18 21:04:38,614 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=3440, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4219, PETRI_PLACES=241, PETRI_TRANSITIONS=339} [2022-11-18 21:04:38,615 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 108 predicate places. [2022-11-18 21:04:38,615 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 339 transitions, 4219 flow [2022-11-18 21:04:38,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:38,616 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:38,616 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:38,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 21:04:38,617 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:38,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:38,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1038783994, now seen corresponding path program 9 times [2022-11-18 21:04:38,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:38,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103418654] [2022-11-18 21:04:38,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:38,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:39,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:39,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:39,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103418654] [2022-11-18 21:04:39,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103418654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:39,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:39,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:04:39,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263283799] [2022-11-18 21:04:39,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:39,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:04:39,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:39,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:04:39,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:04:39,246 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-18 21:04:39,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 339 transitions, 4219 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:39,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:39,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-18 21:04:39,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:41,635 INFO L130 PetriNetUnfolder]: 810/2799 cut-off events. [2022-11-18 21:04:41,635 INFO L131 PetriNetUnfolder]: For 46629/46637 co-relation queries the response was YES. [2022-11-18 21:04:41,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14473 conditions, 2799 events. 810/2799 cut-off events. For 46629/46637 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 19632 event pairs, 134 based on Foata normal form. 34/2816 useless extension candidates. Maximal degree in co-relation 14355. Up to 646 conditions per place. [2022-11-18 21:04:41,683 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 309 selfloop transitions, 100 changer transitions 54/537 dead transitions. [2022-11-18 21:04:41,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 537 transitions, 6445 flow [2022-11-18 21:04:41,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:04:41,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 21:04:41,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1162 transitions. [2022-11-18 21:04:41,689 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6498881431767338 [2022-11-18 21:04:41,690 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1162 transitions. [2022-11-18 21:04:41,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1162 transitions. [2022-11-18 21:04:41,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:41,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1162 transitions. [2022-11-18 21:04:41,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.83333333333333) internal successors, (1162), 12 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:41,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:41,699 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:41,699 INFO L175 Difference]: Start difference. First operand has 241 places, 339 transitions, 4219 flow. Second operand 12 states and 1162 transitions. [2022-11-18 21:04:41,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 537 transitions, 6445 flow [2022-11-18 21:04:42,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 537 transitions, 6255 flow, removed 61 selfloop flow, removed 5 redundant places. [2022-11-18 21:04:42,159 INFO L231 Difference]: Finished difference. Result has 254 places, 362 transitions, 4839 flow [2022-11-18 21:04:42,160 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4037, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4839, PETRI_PLACES=254, PETRI_TRANSITIONS=362} [2022-11-18 21:04:42,161 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 121 predicate places. [2022-11-18 21:04:42,161 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 362 transitions, 4839 flow [2022-11-18 21:04:42,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:42,162 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:42,162 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:42,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 21:04:42,163 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:42,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:42,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1358669058, now seen corresponding path program 10 times [2022-11-18 21:04:42,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:42,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809628395] [2022-11-18 21:04:42,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:42,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:42,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:42,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:42,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809628395] [2022-11-18 21:04:42,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809628395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:42,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:42,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:04:42,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133976031] [2022-11-18 21:04:42,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:42,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:04:42,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:42,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:04:42,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:04:42,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-18 21:04:42,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 362 transitions, 4839 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:42,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:42,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-18 21:04:42,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:45,202 INFO L130 PetriNetUnfolder]: 803/2824 cut-off events. [2022-11-18 21:04:45,202 INFO L131 PetriNetUnfolder]: For 56733/56741 co-relation queries the response was YES. [2022-11-18 21:04:45,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15038 conditions, 2824 events. 803/2824 cut-off events. For 56733/56741 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 20192 event pairs, 143 based on Foata normal form. 23/2829 useless extension candidates. Maximal degree in co-relation 14912. Up to 1256 conditions per place. [2022-11-18 21:04:45,238 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 248 selfloop transitions, 97 changer transitions 47/466 dead transitions. [2022-11-18 21:04:45,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 466 transitions, 6033 flow [2022-11-18 21:04:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:04:45,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 21:04:45,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1132 transitions. [2022-11-18 21:04:45,244 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6331096196868009 [2022-11-18 21:04:45,244 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1132 transitions. [2022-11-18 21:04:45,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1132 transitions. [2022-11-18 21:04:45,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:45,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1132 transitions. [2022-11-18 21:04:45,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.33333333333333) internal successors, (1132), 12 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:45,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:45,259 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:45,259 INFO L175 Difference]: Start difference. First operand has 254 places, 362 transitions, 4839 flow. Second operand 12 states and 1132 transitions. [2022-11-18 21:04:45,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 466 transitions, 6033 flow [2022-11-18 21:04:45,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 466 transitions, 5836 flow, removed 96 selfloop flow, removed 3 redundant places. [2022-11-18 21:04:45,724 INFO L231 Difference]: Finished difference. Result has 266 places, 363 transitions, 4886 flow [2022-11-18 21:04:45,725 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4646, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4886, PETRI_PLACES=266, PETRI_TRANSITIONS=363} [2022-11-18 21:04:45,726 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 133 predicate places. [2022-11-18 21:04:45,726 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 363 transitions, 4886 flow [2022-11-18 21:04:45,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:45,727 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:45,727 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:45,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 21:04:45,728 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:45,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:45,729 INFO L85 PathProgramCache]: Analyzing trace with hash 612822602, now seen corresponding path program 11 times [2022-11-18 21:04:45,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:45,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193660068] [2022-11-18 21:04:45,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:45,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:46,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:46,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:46,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193660068] [2022-11-18 21:04:46,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193660068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:46,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:46,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:04:46,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863789034] [2022-11-18 21:04:46,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:46,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:04:46,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:46,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:04:46,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:04:46,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-18 21:04:46,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 363 transitions, 4886 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:46,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:46,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-18 21:04:46,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:48,765 INFO L130 PetriNetUnfolder]: 831/2937 cut-off events. [2022-11-18 21:04:48,765 INFO L131 PetriNetUnfolder]: For 64981/64989 co-relation queries the response was YES. [2022-11-18 21:04:48,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15890 conditions, 2937 events. 831/2937 cut-off events. For 64981/64989 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 21305 event pairs, 159 based on Foata normal form. 34/2950 useless extension candidates. Maximal degree in co-relation 15759. Up to 1254 conditions per place. [2022-11-18 21:04:48,829 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 274 selfloop transitions, 99 changer transitions 57/504 dead transitions. [2022-11-18 21:04:48,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 504 transitions, 6607 flow [2022-11-18 21:04:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 21:04:48,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 21:04:48,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1222 transitions. [2022-11-18 21:04:48,833 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6308724832214765 [2022-11-18 21:04:48,834 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1222 transitions. [2022-11-18 21:04:48,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1222 transitions. [2022-11-18 21:04:48,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:48,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1222 transitions. [2022-11-18 21:04:48,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 94.0) internal successors, (1222), 13 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:48,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:48,844 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:48,844 INFO L175 Difference]: Start difference. First operand has 266 places, 363 transitions, 4886 flow. Second operand 13 states and 1222 transitions. [2022-11-18 21:04:48,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 504 transitions, 6607 flow [2022-11-18 21:04:49,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 504 transitions, 6373 flow, removed 19 selfloop flow, removed 8 redundant places. [2022-11-18 21:04:49,420 INFO L231 Difference]: Finished difference. Result has 277 places, 375 transitions, 5316 flow [2022-11-18 21:04:49,421 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4666, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5316, PETRI_PLACES=277, PETRI_TRANSITIONS=375} [2022-11-18 21:04:49,422 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 144 predicate places. [2022-11-18 21:04:49,422 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 375 transitions, 5316 flow [2022-11-18 21:04:49,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:49,423 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:49,423 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:49,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 21:04:49,424 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:49,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:49,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1786690454, now seen corresponding path program 12 times [2022-11-18 21:04:49,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:49,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962819915] [2022-11-18 21:04:49,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:49,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:50,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:50,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:50,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962819915] [2022-11-18 21:04:50,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962819915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:50,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:50,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:04:50,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430328807] [2022-11-18 21:04:50,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:50,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:04:50,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:50,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:04:50,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:04:50,103 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-18 21:04:50,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 375 transitions, 5316 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:50,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:50,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-18 21:04:50,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:52,351 INFO L130 PetriNetUnfolder]: 761/2803 cut-off events. [2022-11-18 21:04:52,352 INFO L131 PetriNetUnfolder]: For 63813/63821 co-relation queries the response was YES. [2022-11-18 21:04:52,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15152 conditions, 2803 events. 761/2803 cut-off events. For 63813/63821 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 20370 event pairs, 142 based on Foata normal form. 34/2816 useless extension candidates. Maximal degree in co-relation 15014. Up to 1083 conditions per place. [2022-11-18 21:04:52,386 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 294 selfloop transitions, 107 changer transitions 59/534 dead transitions. [2022-11-18 21:04:52,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 534 transitions, 7182 flow [2022-11-18 21:04:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:04:52,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 21:04:52,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1154 transitions. [2022-11-18 21:04:52,391 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.645413870246085 [2022-11-18 21:04:52,392 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1154 transitions. [2022-11-18 21:04:52,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1154 transitions. [2022-11-18 21:04:52,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:52,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1154 transitions. [2022-11-18 21:04:52,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.16666666666667) internal successors, (1154), 12 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:52,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:52,403 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:52,403 INFO L175 Difference]: Start difference. First operand has 277 places, 375 transitions, 5316 flow. Second operand 12 states and 1154 transitions. [2022-11-18 21:04:52,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 534 transitions, 7182 flow [2022-11-18 21:04:52,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 534 transitions, 6850 flow, removed 70 selfloop flow, removed 7 redundant places. [2022-11-18 21:04:52,877 INFO L231 Difference]: Finished difference. Result has 286 places, 384 transitions, 5561 flow [2022-11-18 21:04:52,877 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=5016, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5561, PETRI_PLACES=286, PETRI_TRANSITIONS=384} [2022-11-18 21:04:52,878 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 153 predicate places. [2022-11-18 21:04:52,878 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 384 transitions, 5561 flow [2022-11-18 21:04:52,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:52,879 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:52,879 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:52,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 21:04:52,879 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:52,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:52,880 INFO L85 PathProgramCache]: Analyzing trace with hash 927999478, now seen corresponding path program 13 times [2022-11-18 21:04:52,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:52,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431138936] [2022-11-18 21:04:52,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:52,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:53,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:53,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:53,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431138936] [2022-11-18 21:04:53,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431138936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:53,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:53,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 21:04:53,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485830605] [2022-11-18 21:04:53,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:53,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 21:04:53,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:53,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 21:04:53,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:04:53,562 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-18 21:04:53,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 384 transitions, 5561 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:53,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:53,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-18 21:04:53,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:55,784 INFO L130 PetriNetUnfolder]: 706/2719 cut-off events. [2022-11-18 21:04:55,784 INFO L131 PetriNetUnfolder]: For 60299/60308 co-relation queries the response was YES. [2022-11-18 21:04:55,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14727 conditions, 2719 events. 706/2719 cut-off events. For 60299/60308 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 20036 event pairs, 109 based on Foata normal form. 35/2737 useless extension candidates. Maximal degree in co-relation 14586. Up to 1115 conditions per place. [2022-11-18 21:04:55,807 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 269 selfloop transitions, 109 changer transitions 68/510 dead transitions. [2022-11-18 21:04:55,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 510 transitions, 6957 flow [2022-11-18 21:04:55,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 21:04:55,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 21:04:55,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1227 transitions. [2022-11-18 21:04:55,811 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6334537945276201 [2022-11-18 21:04:55,811 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1227 transitions. [2022-11-18 21:04:55,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1227 transitions. [2022-11-18 21:04:55,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:55,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1227 transitions. [2022-11-18 21:04:55,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 94.38461538461539) internal successors, (1227), 13 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:55,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:55,821 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:55,821 INFO L175 Difference]: Start difference. First operand has 286 places, 384 transitions, 5561 flow. Second operand 13 states and 1227 transitions. [2022-11-18 21:04:55,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 510 transitions, 6957 flow [2022-11-18 21:04:56,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 510 transitions, 6597 flow, removed 92 selfloop flow, removed 16 redundant places. [2022-11-18 21:04:56,335 INFO L231 Difference]: Finished difference. Result has 282 places, 369 transitions, 5385 flow [2022-11-18 21:04:56,336 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=5184, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5385, PETRI_PLACES=282, PETRI_TRANSITIONS=369} [2022-11-18 21:04:56,337 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 149 predicate places. [2022-11-18 21:04:56,337 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 369 transitions, 5385 flow [2022-11-18 21:04:56,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:56,338 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:04:56,338 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] [2022-11-18 21:04:56,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 21:04:56,339 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-18 21:04:56,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:56,340 INFO L85 PathProgramCache]: Analyzing trace with hash -235809187, now seen corresponding path program 1 times [2022-11-18 21:04:56,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:56,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332748274] [2022-11-18 21:04:56,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:56,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:56,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:56,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:56,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332748274] [2022-11-18 21:04:56,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332748274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:56,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:56,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 21:04:56,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159003220] [2022-11-18 21:04:56,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:56,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 21:04:56,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:56,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 21:04:56,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-18 21:04:56,931 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2022-11-18 21:04:56,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 369 transitions, 5385 flow. Second operand has 12 states, 12 states have (on average 80.83333333333333) internal successors, (970), 12 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:56,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:04:56,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2022-11-18 21:04:56,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:04:58,121 INFO L130 PetriNetUnfolder]: 591/2031 cut-off events. [2022-11-18 21:04:58,122 INFO L131 PetriNetUnfolder]: For 44455/44455 co-relation queries the response was YES. [2022-11-18 21:04:58,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12205 conditions, 2031 events. 591/2031 cut-off events. For 44455/44455 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 13339 event pairs, 218 based on Foata normal form. 44/2049 useless extension candidates. Maximal degree in co-relation 12072. Up to 1183 conditions per place. [2022-11-18 21:04:58,135 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 0 selfloop transitions, 0 changer transitions 477/477 dead transitions. [2022-11-18 21:04:58,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 477 transitions, 8379 flow [2022-11-18 21:04:58,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:04:58,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 21:04:58,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 941 transitions. [2022-11-18 21:04:58,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.574130567419158 [2022-11-18 21:04:58,138 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 941 transitions. [2022-11-18 21:04:58,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 941 transitions. [2022-11-18 21:04:58,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:04:58,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 941 transitions. [2022-11-18 21:04:58,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 85.54545454545455) internal successors, (941), 11 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:58,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:58,145 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:58,146 INFO L175 Difference]: Start difference. First operand has 282 places, 369 transitions, 5385 flow. Second operand 11 states and 941 transitions. [2022-11-18 21:04:58,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 477 transitions, 8379 flow [2022-11-18 21:04:58,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 477 transitions, 7679 flow, removed 91 selfloop flow, removed 20 redundant places. [2022-11-18 21:04:58,344 INFO L231 Difference]: Finished difference. Result has 259 places, 0 transitions, 0 flow [2022-11-18 21:04:58,345 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4813, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=259, PETRI_TRANSITIONS=0} [2022-11-18 21:04:58,345 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 126 predicate places. [2022-11-18 21:04:58,345 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 0 transitions, 0 flow [2022-11-18 21:04:58,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 80.83333333333333) internal successors, (970), 12 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:58,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2022-11-18 21:04:58,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2022-11-18 21:04:58,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2022-11-18 21:04:58,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2022-11-18 21:04:58,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2022-11-18 21:04:58,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2022-11-18 21:04:58,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2022-11-18 21:04:58,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2022-11-18 21:04:58,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2022-11-18 21:04:58,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2022-11-18 21:04:58,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2022-11-18 21:04:58,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 21:04:58,354 INFO L444 BasicCegarLoop]: Path program histogram: [13, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:58,361 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 21:04:58,361 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:04:58,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:04:58 BasicIcfg [2022-11-18 21:04:58,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:04:58,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:04:58,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:04:58,370 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:04:58,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:04:04" (3/4) ... [2022-11-18 21:04:58,374 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 21:04:58,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-18 21:04:58,389 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-18 21:04:58,389 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 21:04:58,390 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 21:04:58,390 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 21:04:58,437 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:04:58,438 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:04:58,438 INFO L158 Benchmark]: Toolchain (without parser) took 55697.79ms. Allocated memory was 113.2MB in the beginning and 866.1MB in the end (delta: 752.9MB). Free memory was 66.7MB in the beginning and 597.4MB in the end (delta: -530.7MB). Peak memory consumption was 222.2MB. Max. memory is 16.1GB. [2022-11-18 21:04:58,439 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 84.3MB in the beginning and 84.3MB in the end (delta: 54.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:04:58,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 742.81ms. Allocated memory is still 113.2MB. Free memory was 66.5MB in the beginning and 75.4MB in the end (delta: -8.9MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2022-11-18 21:04:58,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.79ms. Allocated memory is still 113.2MB. Free memory was 75.4MB in the beginning and 73.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:04:58,440 INFO L158 Benchmark]: Boogie Preprocessor took 66.88ms. Allocated memory is still 113.2MB. Free memory was 73.1MB in the beginning and 71.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:04:58,441 INFO L158 Benchmark]: RCFGBuilder took 734.82ms. Allocated memory is still 113.2MB. Free memory was 70.7MB in the beginning and 52.7MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 21:04:58,441 INFO L158 Benchmark]: TraceAbstraction took 53989.44ms. Allocated memory was 113.2MB in the beginning and 866.1MB in the end (delta: 752.9MB). Free memory was 51.9MB in the beginning and 600.6MB in the end (delta: -548.7MB). Peak memory consumption was 205.0MB. Max. memory is 16.1GB. [2022-11-18 21:04:58,442 INFO L158 Benchmark]: Witness Printer took 68.62ms. Allocated memory is still 866.1MB. Free memory was 600.6MB in the beginning and 597.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 21:04:58,444 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 84.3MB in the beginning and 84.3MB in the end (delta: 54.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 742.81ms. Allocated memory is still 113.2MB. Free memory was 66.5MB in the beginning and 75.4MB in the end (delta: -8.9MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.79ms. Allocated memory is still 113.2MB. Free memory was 75.4MB in the beginning and 73.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.88ms. Allocated memory is still 113.2MB. Free memory was 73.1MB in the beginning and 71.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 734.82ms. Allocated memory is still 113.2MB. Free memory was 70.7MB in the beginning and 52.7MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 53989.44ms. Allocated memory was 113.2MB in the beginning and 866.1MB in the end (delta: 752.9MB). Free memory was 51.9MB in the beginning and 600.6MB in the end (delta: -548.7MB). Peak memory consumption was 205.0MB. Max. memory is 16.1GB. * Witness Printer took 68.62ms. Allocated memory is still 866.1MB. Free memory was 600.6MB in the beginning and 597.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: 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 3 procedures, 198 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 53.8s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 38.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3360 SdHoareTripleChecker+Valid, 16.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3360 mSDsluCounter, 1714 SdHoareTripleChecker+Invalid, 13.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 981 mSDsCounter, 1572 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11294 IncrementalHoareTripleChecker+Invalid, 12866 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1572 mSolverCounterUnsat, 733 mSDtfsCounter, 11294 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 393 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 323 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5561occurred in iteration=19, InterpolantAutomatonStates: 215, 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, 0.4s SatisfiabilityAnalysisTime, 13.7s InterpolantComputationTime, 1723 NumberOfCodeBlocks, 1723 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1702 ConstructedInterpolants, 0 QuantifiedInterpolants, 11797 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 21:04:58,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f5e749-6b43-4ed0-8a59-47f38b3051d7/bin/uautomizer-TMbwUNV5ro/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