./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/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_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-e04fb08 [2022-11-16 11:26:14,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:26:14,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:26:14,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:26:14,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:26:14,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:26:14,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:26:14,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:26:14,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:26:14,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:26:14,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:26:14,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:26:14,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:26:14,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:26:14,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:26:14,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:26:14,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:26:14,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:26:14,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:26:14,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:26:14,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:26:14,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:26:14,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:26:14,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:26:14,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:26:14,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:26:14,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:26:14,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:26:14,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:26:14,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:26:14,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:26:14,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:26:14,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:26:14,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:26:14,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:26:14,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:26:14,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:26:14,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:26:14,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:26:14,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:26:14,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:26:14,191 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:26:14,231 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:26:14,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:26:14,232 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:26:14,232 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:26:14,233 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:26:14,233 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:26:14,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:26:14,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:26:14,235 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:26:14,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:26:14,236 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:26:14,236 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:26:14,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:26:14,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:26:14,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:26:14,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:26:14,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:26:14,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:26:14,238 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:26:14,238 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:26:14,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:26:14,239 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:26:14,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:26:14,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:26:14,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:26:14,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:26:14,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:26:14,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:26:14,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:26:14,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:26:14,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:26:14,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:26:14,243 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:26:14,243 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:26:14,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:26:14,244 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_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2022-11-16 11:26:14,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:26:14,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:26:14,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:26:14,576 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:26:14,577 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:26:14,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-11-16 11:26:14,652 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/data/58ba093ee/88e697d4b4ce458dba722e544564c889/FLAGf0ccb5090 [2022-11-16 11:26:15,219 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:26:15,220 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-11-16 11:26:15,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/data/58ba093ee/88e697d4b4ce458dba722e544564c889/FLAGf0ccb5090 [2022-11-16 11:26:15,525 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/data/58ba093ee/88e697d4b4ce458dba722e544564c889 [2022-11-16 11:26:15,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:26:15,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:26:15,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:26:15,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:26:15,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:26:15,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:26:15" (1/1) ... [2022-11-16 11:26:15,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f761c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:15, skipping insertion in model container [2022-11-16 11:26:15,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:26:15" (1/1) ... [2022-11-16 11:26:15,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:26:15,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:26:15,935 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-11-16 11:26:15,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:26:15,993 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:26:16,048 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-11-16 11:26:16,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:26:16,107 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:26:16,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:16 WrapperNode [2022-11-16 11:26:16,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:26:16,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:26:16,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:26:16,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:26:16,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:16" (1/1) ... [2022-11-16 11:26:16,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:16" (1/1) ... [2022-11-16 11:26:16,152 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-11-16 11:26:16,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:26:16,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:26:16,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:26:16,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:26:16,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:16" (1/1) ... [2022-11-16 11:26:16,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:16" (1/1) ... [2022-11-16 11:26:16,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:16" (1/1) ... [2022-11-16 11:26:16,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:16" (1/1) ... [2022-11-16 11:26:16,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:16" (1/1) ... [2022-11-16 11:26:16,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:16" (1/1) ... [2022-11-16 11:26:16,192 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:16" (1/1) ... [2022-11-16 11:26:16,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:16" (1/1) ... [2022-11-16 11:26:16,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:26:16,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:26:16,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:26:16,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:26:16,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:16" (1/1) ... [2022-11-16 11:26:16,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:26:16,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:26:16,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:26:16,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:26:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:26:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:26:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:26:16,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:26:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:26:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:26:16,293 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:26:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:26:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:26:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:26:16,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:26:16,295 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:26:16,423 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:26:16,425 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:26:16,748 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:26:16,756 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:26:16,759 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-16 11:26:16,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:26:16 BoogieIcfgContainer [2022-11-16 11:26:16,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:26:16,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:26:16,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:26:16,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:26:16,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:26:15" (1/3) ... [2022-11-16 11:26:16,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596b8486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:26:16, skipping insertion in model container [2022-11-16 11:26:16,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:16" (2/3) ... [2022-11-16 11:26:16,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596b8486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:26:16, skipping insertion in model container [2022-11-16 11:26:16,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:26:16" (3/3) ... [2022-11-16 11:26:16,773 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-11-16 11:26:16,783 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:26:16,793 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:26:16,794 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 11:26:16,794 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:26:16,919 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 11:26:16,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 149 transitions, 306 flow [2022-11-16 11:26:17,026 INFO L130 PetriNetUnfolder]: 9/148 cut-off events. [2022-11-16 11:26:17,026 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:26:17,033 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. [2022-11-16 11:26:17,034 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 149 transitions, 306 flow [2022-11-16 11:26:17,039 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 138 transitions, 279 flow [2022-11-16 11:26:17,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:26:17,058 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;@70ebdbe1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:26:17,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-16 11:26:17,097 INFO L130 PetriNetUnfolder]: 2/84 cut-off events. [2022-11-16 11:26:17,098 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:26:17,098 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:17,099 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] [2022-11-16 11:26:17,099 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)] === [2022-11-16 11:26:17,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:17,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1800181964, now seen corresponding path program 1 times [2022-11-16 11:26:17,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:17,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636568097] [2022-11-16 11:26:17,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:17,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:18,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:18,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:18,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636568097] [2022-11-16 11:26:18,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636568097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:18,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:18,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:26:18,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491280484] [2022-11-16 11:26:18,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:18,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:26:18,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:18,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:26:18,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:26:18,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 149 [2022-11-16 11:26:18,088 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) [2022-11-16 11:26:18,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:18,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 149 [2022-11-16 11:26:18,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:18,877 INFO L130 PetriNetUnfolder]: 474/1648 cut-off events. [2022-11-16 11:26:18,877 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:26:18,884 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. [2022-11-16 11:26:18,894 INFO L137 encePairwiseOnDemand]: 126/149 looper letters, 110 selfloop transitions, 37 changer transitions 0/234 dead transitions. [2022-11-16 11:26:18,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 234 transitions, 765 flow [2022-11-16 11:26:18,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:26:18,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:26:18,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 753 transitions. [2022-11-16 11:26:18,917 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8422818791946308 [2022-11-16 11:26:18,918 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 753 transitions. [2022-11-16 11:26:18,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 753 transitions. [2022-11-16 11:26:18,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:18,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 753 transitions. [2022-11-16 11:26:18,931 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) [2022-11-16 11:26:18,939 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) [2022-11-16 11:26:18,940 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) [2022-11-16 11:26:18,942 INFO L175 Difference]: Start difference. First operand has 133 places, 138 transitions, 279 flow. Second operand 6 states and 753 transitions. [2022-11-16 11:26:18,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 234 transitions, 765 flow [2022-11-16 11:26:18,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 234 transitions, 764 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:26:18,954 INFO L231 Difference]: Finished difference. Result has 141 places, 164 transitions, 504 flow [2022-11-16 11:26:18,956 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} [2022-11-16 11:26:18,962 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 8 predicate places. [2022-11-16 11:26:18,962 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 164 transitions, 504 flow [2022-11-16 11:26:18,963 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) [2022-11-16 11:26:18,964 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:18,965 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] [2022-11-16 11:26:18,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:26:18,967 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)] === [2022-11-16 11:26:18,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:18,969 INFO L85 PathProgramCache]: Analyzing trace with hash -583844046, now seen corresponding path program 1 times [2022-11-16 11:26:18,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:18,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914816420] [2022-11-16 11:26:18,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:18,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:19,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:19,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:19,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914816420] [2022-11-16 11:26:19,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914816420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:19,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:19,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:26:19,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490331159] [2022-11-16 11:26:19,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:19,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:26:19,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:19,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:26:19,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:26:19,492 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 149 [2022-11-16 11:26:19,494 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) [2022-11-16 11:26:19,495 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:19,495 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 149 [2022-11-16 11:26:19,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:20,024 INFO L130 PetriNetUnfolder]: 494/1663 cut-off events. [2022-11-16 11:26:20,025 INFO L131 PetriNetUnfolder]: For 544/544 co-relation queries the response was YES. [2022-11-16 11:26:20,028 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. [2022-11-16 11:26:20,035 INFO L137 encePairwiseOnDemand]: 137/149 looper letters, 122 selfloop transitions, 18 changer transitions 0/226 dead transitions. [2022-11-16 11:26:20,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 226 transitions, 1028 flow [2022-11-16 11:26:20,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:26:20,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:26:20,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 666 transitions. [2022-11-16 11:26:20,037 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7449664429530202 [2022-11-16 11:26:20,038 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 666 transitions. [2022-11-16 11:26:20,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 666 transitions. [2022-11-16 11:26:20,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:20,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 666 transitions. [2022-11-16 11:26:20,040 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) [2022-11-16 11:26:20,042 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) [2022-11-16 11:26:20,043 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) [2022-11-16 11:26:20,043 INFO L175 Difference]: Start difference. First operand has 141 places, 164 transitions, 504 flow. Second operand 6 states and 666 transitions. [2022-11-16 11:26:20,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 226 transitions, 1028 flow [2022-11-16 11:26:20,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 226 transitions, 1028 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:26:20,056 INFO L231 Difference]: Finished difference. Result has 144 places, 162 transitions, 536 flow [2022-11-16 11:26:20,057 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} [2022-11-16 11:26:20,057 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 11 predicate places. [2022-11-16 11:26:20,058 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 162 transitions, 536 flow [2022-11-16 11:26:20,058 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) [2022-11-16 11:26:20,058 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:20,059 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] [2022-11-16 11:26:20,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:26:20,059 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)] === [2022-11-16 11:26:20,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:20,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1803013028, now seen corresponding path program 1 times [2022-11-16 11:26:20,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:20,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496857694] [2022-11-16 11:26:20,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:20,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:20,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:20,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:20,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496857694] [2022-11-16 11:26:20,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496857694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:20,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:20,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:26:20,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174234549] [2022-11-16 11:26:20,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:20,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:26:20,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:20,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:26:20,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:26:20,421 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 149 [2022-11-16 11:26:20,422 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) [2022-11-16 11:26:20,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:20,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 149 [2022-11-16 11:26:20,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:21,050 INFO L130 PetriNetUnfolder]: 591/1957 cut-off events. [2022-11-16 11:26:21,050 INFO L131 PetriNetUnfolder]: For 707/707 co-relation queries the response was YES. [2022-11-16 11:26:21,054 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. [2022-11-16 11:26:21,061 INFO L137 encePairwiseOnDemand]: 134/149 looper letters, 90 selfloop transitions, 48 changer transitions 0/222 dead transitions. [2022-11-16 11:26:21,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 222 transitions, 1028 flow [2022-11-16 11:26:21,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:26:21,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:26:21,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 660 transitions. [2022-11-16 11:26:21,064 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.738255033557047 [2022-11-16 11:26:21,064 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 660 transitions. [2022-11-16 11:26:21,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 660 transitions. [2022-11-16 11:26:21,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:21,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 660 transitions. [2022-11-16 11:26:21,069 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) [2022-11-16 11:26:21,071 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) [2022-11-16 11:26:21,071 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) [2022-11-16 11:26:21,072 INFO L175 Difference]: Start difference. First operand has 144 places, 162 transitions, 536 flow. Second operand 6 states and 660 transitions. [2022-11-16 11:26:21,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 222 transitions, 1028 flow [2022-11-16 11:26:21,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 222 transitions, 992 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:26:21,085 INFO L231 Difference]: Finished difference. Result has 149 places, 205 transitions, 888 flow [2022-11-16 11:26:21,085 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} [2022-11-16 11:26:21,088 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 16 predicate places. [2022-11-16 11:26:21,088 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 205 transitions, 888 flow [2022-11-16 11:26:21,088 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) [2022-11-16 11:26:21,089 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:21,089 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] [2022-11-16 11:26:21,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:26:21,089 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)] === [2022-11-16 11:26:21,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:21,090 INFO L85 PathProgramCache]: Analyzing trace with hash 191733502, now seen corresponding path program 1 times [2022-11-16 11:26:21,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:21,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446726895] [2022-11-16 11:26:21,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:21,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:21,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:21,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:21,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446726895] [2022-11-16 11:26:21,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446726895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:21,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:21,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:26:21,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102748014] [2022-11-16 11:26:21,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:21,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:26:21,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:21,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:26:21,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:26:21,541 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 149 [2022-11-16 11:26:21,543 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) [2022-11-16 11:26:21,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:21,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 149 [2022-11-16 11:26:21,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:22,209 INFO L130 PetriNetUnfolder]: 580/1918 cut-off events. [2022-11-16 11:26:22,210 INFO L131 PetriNetUnfolder]: For 1203/1209 co-relation queries the response was YES. [2022-11-16 11:26:22,215 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. [2022-11-16 11:26:22,222 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 165 selfloop transitions, 75 changer transitions 4/332 dead transitions. [2022-11-16 11:26:22,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 332 transitions, 1940 flow [2022-11-16 11:26:22,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:26:22,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:26:22,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2022-11-16 11:26:22,225 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.785234899328859 [2022-11-16 11:26:22,226 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 702 transitions. [2022-11-16 11:26:22,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 702 transitions. [2022-11-16 11:26:22,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:22,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 702 transitions. [2022-11-16 11:26:22,229 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) [2022-11-16 11:26:22,235 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) [2022-11-16 11:26:22,235 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) [2022-11-16 11:26:22,236 INFO L175 Difference]: Start difference. First operand has 149 places, 205 transitions, 888 flow. Second operand 6 states and 702 transitions. [2022-11-16 11:26:22,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 332 transitions, 1940 flow [2022-11-16 11:26:22,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 332 transitions, 1922 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 11:26:22,249 INFO L231 Difference]: Finished difference. Result has 159 places, 275 transitions, 1646 flow [2022-11-16 11:26:22,250 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} [2022-11-16 11:26:22,252 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 26 predicate places. [2022-11-16 11:26:22,252 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 275 transitions, 1646 flow [2022-11-16 11:26:22,254 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) [2022-11-16 11:26:22,254 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:22,255 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] [2022-11-16 11:26:22,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:26:22,255 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)] === [2022-11-16 11:26:22,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:22,256 INFO L85 PathProgramCache]: Analyzing trace with hash 3619126, now seen corresponding path program 1 times [2022-11-16 11:26:22,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:22,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544789063] [2022-11-16 11:26:22,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:22,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:22,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:22,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:22,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544789063] [2022-11-16 11:26:22,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544789063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:22,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:22,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:26:22,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911841837] [2022-11-16 11:26:22,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:22,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:26:22,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:22,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:26:22,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:26:22,526 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 149 [2022-11-16 11:26:22,528 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) [2022-11-16 11:26:22,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:22,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 149 [2022-11-16 11:26:22,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:22,690 INFO L130 PetriNetUnfolder]: 90/572 cut-off events. [2022-11-16 11:26:22,690 INFO L131 PetriNetUnfolder]: For 498/546 co-relation queries the response was YES. [2022-11-16 11:26:22,692 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. [2022-11-16 11:26:22,694 INFO L137 encePairwiseOnDemand]: 143/149 looper letters, 17 selfloop transitions, 6 changer transitions 1/189 dead transitions. [2022-11-16 11:26:22,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 189 transitions, 964 flow [2022-11-16 11:26:22,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:26:22,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:26:22,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 600 transitions. [2022-11-16 11:26:22,697 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8053691275167785 [2022-11-16 11:26:22,697 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 600 transitions. [2022-11-16 11:26:22,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 600 transitions. [2022-11-16 11:26:22,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:22,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 600 transitions. [2022-11-16 11:26:22,700 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) [2022-11-16 11:26:22,701 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) [2022-11-16 11:26:22,702 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) [2022-11-16 11:26:22,702 INFO L175 Difference]: Start difference. First operand has 159 places, 275 transitions, 1646 flow. Second operand 5 states and 600 transitions. [2022-11-16 11:26:22,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 189 transitions, 964 flow [2022-11-16 11:26:22,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 189 transitions, 836 flow, removed 55 selfloop flow, removed 7 redundant places. [2022-11-16 11:26:22,734 INFO L231 Difference]: Finished difference. Result has 155 places, 188 transitions, 800 flow [2022-11-16 11:26:22,735 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} [2022-11-16 11:26:22,737 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 22 predicate places. [2022-11-16 11:26:22,737 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 188 transitions, 800 flow [2022-11-16 11:26:22,738 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) [2022-11-16 11:26:22,738 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:22,738 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:22,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:26:22,739 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)] === [2022-11-16 11:26:22,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:22,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1955427445, now seen corresponding path program 1 times [2022-11-16 11:26:22,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:22,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865542642] [2022-11-16 11:26:22,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:22,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:23,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:23,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:23,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865542642] [2022-11-16 11:26:23,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865542642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:23,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:23,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:26:23,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921022295] [2022-11-16 11:26:23,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:23,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:26:23,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:23,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:26:23,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:26:23,244 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 149 [2022-11-16 11:26:23,245 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) [2022-11-16 11:26:23,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:23,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 149 [2022-11-16 11:26:23,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:23,543 INFO L130 PetriNetUnfolder]: 304/965 cut-off events. [2022-11-16 11:26:23,543 INFO L131 PetriNetUnfolder]: For 809/809 co-relation queries the response was YES. [2022-11-16 11:26:23,546 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. [2022-11-16 11:26:23,549 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 99 selfloop transitions, 26 changer transitions 15/224 dead transitions. [2022-11-16 11:26:23,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 224 transitions, 1286 flow [2022-11-16 11:26:23,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:26:23,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:26:23,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 635 transitions. [2022-11-16 11:26:23,552 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7102908277404921 [2022-11-16 11:26:23,552 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 635 transitions. [2022-11-16 11:26:23,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 635 transitions. [2022-11-16 11:26:23,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:23,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 635 transitions. [2022-11-16 11:26:23,554 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) [2022-11-16 11:26:23,556 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) [2022-11-16 11:26:23,556 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) [2022-11-16 11:26:23,557 INFO L175 Difference]: Start difference. First operand has 155 places, 188 transitions, 800 flow. Second operand 6 states and 635 transitions. [2022-11-16 11:26:23,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 224 transitions, 1286 flow [2022-11-16 11:26:23,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 224 transitions, 1273 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:26:23,566 INFO L231 Difference]: Finished difference. Result has 160 places, 205 transitions, 1005 flow [2022-11-16 11:26:23,567 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} [2022-11-16 11:26:23,568 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 27 predicate places. [2022-11-16 11:26:23,568 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 205 transitions, 1005 flow [2022-11-16 11:26:23,568 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) [2022-11-16 11:26:23,568 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:23,569 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] [2022-11-16 11:26:23,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:26:23,569 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)] === [2022-11-16 11:26:23,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:23,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1637126580, now seen corresponding path program 1 times [2022-11-16 11:26:23,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:23,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046311629] [2022-11-16 11:26:23,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:23,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:24,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:24,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046311629] [2022-11-16 11:26:24,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046311629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:24,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:24,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:26:24,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793236735] [2022-11-16 11:26:24,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:24,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:26:24,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:24,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:26:24,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:26:24,128 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2022-11-16 11:26:24,130 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) [2022-11-16 11:26:24,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:24,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2022-11-16 11:26:24,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:24,741 INFO L130 PetriNetUnfolder]: 324/1036 cut-off events. [2022-11-16 11:26:24,742 INFO L131 PetriNetUnfolder]: For 1454/1463 co-relation queries the response was YES. [2022-11-16 11:26:24,745 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. [2022-11-16 11:26:24,750 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 156 selfloop transitions, 30 changer transitions 10/267 dead transitions. [2022-11-16 11:26:24,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 267 transitions, 1785 flow [2022-11-16 11:26:24,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:26:24,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:26:24,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 953 transitions. [2022-11-16 11:26:24,753 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5814521049420378 [2022-11-16 11:26:24,753 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 953 transitions. [2022-11-16 11:26:24,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 953 transitions. [2022-11-16 11:26:24,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:24,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 953 transitions. [2022-11-16 11:26:24,757 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) [2022-11-16 11:26:24,760 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) [2022-11-16 11:26:24,761 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) [2022-11-16 11:26:24,761 INFO L175 Difference]: Start difference. First operand has 160 places, 205 transitions, 1005 flow. Second operand 11 states and 953 transitions. [2022-11-16 11:26:24,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 267 transitions, 1785 flow [2022-11-16 11:26:24,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 267 transitions, 1727 flow, removed 25 selfloop flow, removed 1 redundant places. [2022-11-16 11:26:24,775 INFO L231 Difference]: Finished difference. Result has 168 places, 204 transitions, 1005 flow [2022-11-16 11:26:24,776 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} [2022-11-16 11:26:24,776 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 35 predicate places. [2022-11-16 11:26:24,777 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 204 transitions, 1005 flow [2022-11-16 11:26:24,777 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) [2022-11-16 11:26:24,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:24,778 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:24,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:26:24,778 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)] === [2022-11-16 11:26:24,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:24,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1248037642, now seen corresponding path program 1 times [2022-11-16 11:26:24,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:24,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028186148] [2022-11-16 11:26:24,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:24,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:25,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:25,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:25,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028186148] [2022-11-16 11:26:25,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028186148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:25,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:25,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:26:25,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377370155] [2022-11-16 11:26:25,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:25,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:26:25,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:25,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:26:25,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:26:25,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-16 11:26:25,486 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) [2022-11-16 11:26:25,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:25,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-16 11:26:25,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:26,698 INFO L130 PetriNetUnfolder]: 361/1211 cut-off events. [2022-11-16 11:26:26,699 INFO L131 PetriNetUnfolder]: For 1499/1503 co-relation queries the response was YES. [2022-11-16 11:26:26,702 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. [2022-11-16 11:26:26,707 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 163 selfloop transitions, 52 changer transitions 37/326 dead transitions. [2022-11-16 11:26:26,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 326 transitions, 1989 flow [2022-11-16 11:26:26,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:26:26,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:26:26,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1146 transitions. [2022-11-16 11:26:26,712 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6409395973154363 [2022-11-16 11:26:26,712 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1146 transitions. [2022-11-16 11:26:26,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1146 transitions. [2022-11-16 11:26:26,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:26,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1146 transitions. [2022-11-16 11:26:26,716 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) [2022-11-16 11:26:26,719 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) [2022-11-16 11:26:26,720 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) [2022-11-16 11:26:26,720 INFO L175 Difference]: Start difference. First operand has 168 places, 204 transitions, 1005 flow. Second operand 12 states and 1146 transitions. [2022-11-16 11:26:26,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 326 transitions, 1989 flow [2022-11-16 11:26:26,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 326 transitions, 1903 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-11-16 11:26:26,739 INFO L231 Difference]: Finished difference. Result has 176 places, 212 transitions, 1256 flow [2022-11-16 11:26:26,739 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} [2022-11-16 11:26:26,741 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 43 predicate places. [2022-11-16 11:26:26,741 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 212 transitions, 1256 flow [2022-11-16 11:26:26,742 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) [2022-11-16 11:26:26,742 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:26,742 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] [2022-11-16 11:26:26,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:26:26,743 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)] === [2022-11-16 11:26:26,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:26,744 INFO L85 PathProgramCache]: Analyzing trace with hash -100283934, now seen corresponding path program 2 times [2022-11-16 11:26:26,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:26,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901937501] [2022-11-16 11:26:26,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:26,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:27,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:27,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:27,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901937501] [2022-11-16 11:26:27,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901937501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:27,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:27,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:26:27,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577993805] [2022-11-16 11:26:27,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:27,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:26:27,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:27,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:26:27,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:26:27,254 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-16 11:26:27,255 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) [2022-11-16 11:26:27,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:27,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-16 11:26:27,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:28,233 INFO L130 PetriNetUnfolder]: 468/1405 cut-off events. [2022-11-16 11:26:28,233 INFO L131 PetriNetUnfolder]: For 3440/3446 co-relation queries the response was YES. [2022-11-16 11:26:28,238 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. [2022-11-16 11:26:28,244 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 241 selfloop transitions, 45 changer transitions 39/399 dead transitions. [2022-11-16 11:26:28,244 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 399 transitions, 2936 flow [2022-11-16 11:26:28,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:26:28,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:26:28,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1127 transitions. [2022-11-16 11:26:28,248 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6303131991051454 [2022-11-16 11:26:28,248 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1127 transitions. [2022-11-16 11:26:28,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1127 transitions. [2022-11-16 11:26:28,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:28,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1127 transitions. [2022-11-16 11:26:28,255 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) [2022-11-16 11:26:28,258 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) [2022-11-16 11:26:28,259 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) [2022-11-16 11:26:28,259 INFO L175 Difference]: Start difference. First operand has 176 places, 212 transitions, 1256 flow. Second operand 12 states and 1127 transitions. [2022-11-16 11:26:28,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 399 transitions, 2936 flow [2022-11-16 11:26:28,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 399 transitions, 2927 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-16 11:26:28,307 INFO L231 Difference]: Finished difference. Result has 186 places, 237 transitions, 1668 flow [2022-11-16 11:26:28,307 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} [2022-11-16 11:26:28,308 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 53 predicate places. [2022-11-16 11:26:28,308 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 237 transitions, 1668 flow [2022-11-16 11:26:28,309 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) [2022-11-16 11:26:28,309 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:28,310 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] [2022-11-16 11:26:28,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:26:28,310 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)] === [2022-11-16 11:26:28,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:28,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1949927790, now seen corresponding path program 3 times [2022-11-16 11:26:28,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:28,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592659276] [2022-11-16 11:26:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:28,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:28,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:28,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:28,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592659276] [2022-11-16 11:26:28,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592659276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:28,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:28,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:26:28,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141231933] [2022-11-16 11:26:28,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:28,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:26:28,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:28,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:26:28,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:26:28,917 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-16 11:26:28,918 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) [2022-11-16 11:26:28,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:28,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-16 11:26:28,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:30,332 INFO L130 PetriNetUnfolder]: 488/1574 cut-off events. [2022-11-16 11:26:30,332 INFO L131 PetriNetUnfolder]: For 5939/5943 co-relation queries the response was YES. [2022-11-16 11:26:30,339 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. [2022-11-16 11:26:30,346 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 208 selfloop transitions, 58 changer transitions 51/391 dead transitions. [2022-11-16 11:26:30,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 391 transitions, 2971 flow [2022-11-16 11:26:30,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:26:30,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:26:30,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1165 transitions. [2022-11-16 11:26:30,350 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.651565995525727 [2022-11-16 11:26:30,350 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1165 transitions. [2022-11-16 11:26:30,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1165 transitions. [2022-11-16 11:26:30,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:30,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1165 transitions. [2022-11-16 11:26:30,354 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) [2022-11-16 11:26:30,358 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) [2022-11-16 11:26:30,359 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) [2022-11-16 11:26:30,359 INFO L175 Difference]: Start difference. First operand has 186 places, 237 transitions, 1668 flow. Second operand 12 states and 1165 transitions. [2022-11-16 11:26:30,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 391 transitions, 2971 flow [2022-11-16 11:26:30,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 391 transitions, 2959 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:26:30,409 INFO L231 Difference]: Finished difference. Result has 196 places, 246 transitions, 1975 flow [2022-11-16 11:26:30,410 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} [2022-11-16 11:26:30,412 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 63 predicate places. [2022-11-16 11:26:30,412 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 246 transitions, 1975 flow [2022-11-16 11:26:30,415 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) [2022-11-16 11:26:30,415 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:30,415 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] [2022-11-16 11:26:30,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:26:30,416 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)] === [2022-11-16 11:26:30,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:30,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1181569920, now seen corresponding path program 4 times [2022-11-16 11:26:30,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:30,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7733525] [2022-11-16 11:26:30,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:30,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:31,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:31,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7733525] [2022-11-16 11:26:31,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7733525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:31,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:31,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:26:31,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135138927] [2022-11-16 11:26:31,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:31,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:26:31,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:31,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:26:31,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:26:31,143 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-16 11:26:31,144 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) [2022-11-16 11:26:31,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:31,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-16 11:26:31,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:32,333 INFO L130 PetriNetUnfolder]: 461/1535 cut-off events. [2022-11-16 11:26:32,334 INFO L131 PetriNetUnfolder]: For 7242/7246 co-relation queries the response was YES. [2022-11-16 11:26:32,340 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. [2022-11-16 11:26:32,352 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 170 selfloop transitions, 65 changer transitions 41/350 dead transitions. [2022-11-16 11:26:32,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 350 transitions, 2915 flow [2022-11-16 11:26:32,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:26:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:26:32,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1055 transitions. [2022-11-16 11:26:32,356 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6436851738865161 [2022-11-16 11:26:32,356 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1055 transitions. [2022-11-16 11:26:32,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1055 transitions. [2022-11-16 11:26:32,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:32,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1055 transitions. [2022-11-16 11:26:32,360 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) [2022-11-16 11:26:32,363 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) [2022-11-16 11:26:32,364 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) [2022-11-16 11:26:32,364 INFO L175 Difference]: Start difference. First operand has 196 places, 246 transitions, 1975 flow. Second operand 11 states and 1055 transitions. [2022-11-16 11:26:32,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 350 transitions, 2915 flow [2022-11-16 11:26:32,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 350 transitions, 2859 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-16 11:26:32,439 INFO L231 Difference]: Finished difference. Result has 203 places, 246 transitions, 2074 flow [2022-11-16 11:26:32,440 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} [2022-11-16 11:26:32,441 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 70 predicate places. [2022-11-16 11:26:32,441 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 246 transitions, 2074 flow [2022-11-16 11:26:32,441 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) [2022-11-16 11:26:32,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:32,442 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] [2022-11-16 11:26:32,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:26:32,442 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)] === [2022-11-16 11:26:32,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:32,443 INFO L85 PathProgramCache]: Analyzing trace with hash 232449696, now seen corresponding path program 5 times [2022-11-16 11:26:32,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:32,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712612199] [2022-11-16 11:26:32,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:32,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:33,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:33,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:33,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712612199] [2022-11-16 11:26:33,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712612199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:33,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:33,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:26:33,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989973472] [2022-11-16 11:26:33,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:33,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:26:33,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:33,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:26:33,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:26:33,039 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-16 11:26:33,040 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) [2022-11-16 11:26:33,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:33,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-16 11:26:33,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:34,330 INFO L130 PetriNetUnfolder]: 656/2085 cut-off events. [2022-11-16 11:26:34,330 INFO L131 PetriNetUnfolder]: For 14729/14734 co-relation queries the response was YES. [2022-11-16 11:26:34,340 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. [2022-11-16 11:26:34,350 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 281 selfloop transitions, 77 changer transitions 56/488 dead transitions. [2022-11-16 11:26:34,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 488 transitions, 4504 flow [2022-11-16 11:26:34,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:26:34,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:26:34,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1170 transitions. [2022-11-16 11:26:34,353 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6543624161073825 [2022-11-16 11:26:34,354 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1170 transitions. [2022-11-16 11:26:34,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1170 transitions. [2022-11-16 11:26:34,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:34,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1170 transitions. [2022-11-16 11:26:34,357 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) [2022-11-16 11:26:34,360 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) [2022-11-16 11:26:34,361 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) [2022-11-16 11:26:34,361 INFO L175 Difference]: Start difference. First operand has 203 places, 246 transitions, 2074 flow. Second operand 12 states and 1170 transitions. [2022-11-16 11:26:34,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 488 transitions, 4504 flow [2022-11-16 11:26:34,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 488 transitions, 4385 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-11-16 11:26:34,453 INFO L231 Difference]: Finished difference. Result has 209 places, 284 transitions, 2800 flow [2022-11-16 11:26:34,454 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} [2022-11-16 11:26:34,454 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 76 predicate places. [2022-11-16 11:26:34,455 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 284 transitions, 2800 flow [2022-11-16 11:26:34,455 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) [2022-11-16 11:26:34,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:34,455 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] [2022-11-16 11:26:34,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:26:34,456 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)] === [2022-11-16 11:26:34,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:34,456 INFO L85 PathProgramCache]: Analyzing trace with hash -359102880, now seen corresponding path program 6 times [2022-11-16 11:26:34,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:34,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897735240] [2022-11-16 11:26:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:34,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:35,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:35,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:35,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897735240] [2022-11-16 11:26:35,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897735240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:35,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:35,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:26:35,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844997298] [2022-11-16 11:26:35,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:35,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:26:35,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:35,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:26:35,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:26:35,096 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-16 11:26:35,097 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) [2022-11-16 11:26:35,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:35,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-16 11:26:35,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:36,759 INFO L130 PetriNetUnfolder]: 676/2192 cut-off events. [2022-11-16 11:26:36,759 INFO L131 PetriNetUnfolder]: For 19883/19888 co-relation queries the response was YES. [2022-11-16 11:26:36,766 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. [2022-11-16 11:26:36,773 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 225 selfloop transitions, 84 changer transitions 53/436 dead transitions. [2022-11-16 11:26:36,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 436 transitions, 4314 flow [2022-11-16 11:26:36,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:26:36,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:26:36,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1240 transitions. [2022-11-16 11:26:36,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6401652039235932 [2022-11-16 11:26:36,776 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1240 transitions. [2022-11-16 11:26:36,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1240 transitions. [2022-11-16 11:26:36,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:36,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1240 transitions. [2022-11-16 11:26:36,780 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) [2022-11-16 11:26:36,784 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) [2022-11-16 11:26:36,785 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) [2022-11-16 11:26:36,785 INFO L175 Difference]: Start difference. First operand has 209 places, 284 transitions, 2800 flow. Second operand 13 states and 1240 transitions. [2022-11-16 11:26:36,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 436 transitions, 4314 flow [2022-11-16 11:26:36,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 436 transitions, 4221 flow, removed 39 selfloop flow, removed 5 redundant places. [2022-11-16 11:26:36,917 INFO L231 Difference]: Finished difference. Result has 223 places, 294 transitions, 3193 flow [2022-11-16 11:26:36,917 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} [2022-11-16 11:26:36,918 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 90 predicate places. [2022-11-16 11:26:36,918 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 294 transitions, 3193 flow [2022-11-16 11:26:36,918 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) [2022-11-16 11:26:36,919 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:36,919 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] [2022-11-16 11:26:36,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:26:36,919 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)] === [2022-11-16 11:26:36,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:36,920 INFO L85 PathProgramCache]: Analyzing trace with hash -626651588, now seen corresponding path program 7 times [2022-11-16 11:26:36,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:36,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815440335] [2022-11-16 11:26:36,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:36,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:37,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:37,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:37,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815440335] [2022-11-16 11:26:37,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815440335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:37,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:37,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:26:37,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428631618] [2022-11-16 11:26:37,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:37,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:26:37,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:37,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:26:37,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:26:37,470 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-16 11:26:37,472 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) [2022-11-16 11:26:37,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:37,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-16 11:26:37,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:38,910 INFO L130 PetriNetUnfolder]: 604/2064 cut-off events. [2022-11-16 11:26:38,910 INFO L131 PetriNetUnfolder]: For 21956/21961 co-relation queries the response was YES. [2022-11-16 11:26:38,919 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. [2022-11-16 11:26:38,924 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 260 selfloop transitions, 81 changer transitions 60/475 dead transitions. [2022-11-16 11:26:38,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 475 transitions, 5016 flow [2022-11-16 11:26:38,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:26:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:26:38,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1167 transitions. [2022-11-16 11:26:38,930 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6526845637583892 [2022-11-16 11:26:38,930 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1167 transitions. [2022-11-16 11:26:38,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1167 transitions. [2022-11-16 11:26:38,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:38,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1167 transitions. [2022-11-16 11:26:38,933 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) [2022-11-16 11:26:38,937 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) [2022-11-16 11:26:38,938 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) [2022-11-16 11:26:38,938 INFO L175 Difference]: Start difference. First operand has 223 places, 294 transitions, 3193 flow. Second operand 12 states and 1167 transitions. [2022-11-16 11:26:38,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 475 transitions, 5016 flow [2022-11-16 11:26:39,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 475 transitions, 4821 flow, removed 18 selfloop flow, removed 8 redundant places. [2022-11-16 11:26:39,067 INFO L231 Difference]: Finished difference. Result has 230 places, 313 transitions, 3567 flow [2022-11-16 11:26:39,068 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} [2022-11-16 11:26:39,068 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 97 predicate places. [2022-11-16 11:26:39,068 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 313 transitions, 3567 flow [2022-11-16 11:26:39,069 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) [2022-11-16 11:26:39,069 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:39,069 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] [2022-11-16 11:26:39,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:26:39,070 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)] === [2022-11-16 11:26:39,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:39,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2101867330, now seen corresponding path program 8 times [2022-11-16 11:26:39,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:39,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683459042] [2022-11-16 11:26:39,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:39,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:39,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:39,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:39,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683459042] [2022-11-16 11:26:39,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683459042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:39,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:39,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:26:39,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985086876] [2022-11-16 11:26:39,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:39,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:26:39,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:39,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:26:39,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:26:39,587 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-16 11:26:39,589 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) [2022-11-16 11:26:39,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:39,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-16 11:26:39,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:41,116 INFO L130 PetriNetUnfolder]: 745/2520 cut-off events. [2022-11-16 11:26:41,116 INFO L131 PetriNetUnfolder]: For 34868/34875 co-relation queries the response was YES. [2022-11-16 11:26:41,125 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. [2022-11-16 11:26:41,133 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 287 selfloop transitions, 96 changer transitions 53/510 dead transitions. [2022-11-16 11:26:41,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 510 transitions, 5799 flow [2022-11-16 11:26:41,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:26:41,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:26:41,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1162 transitions. [2022-11-16 11:26:41,137 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6498881431767338 [2022-11-16 11:26:41,137 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1162 transitions. [2022-11-16 11:26:41,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1162 transitions. [2022-11-16 11:26:41,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:41,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1162 transitions. [2022-11-16 11:26:41,141 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) [2022-11-16 11:26:41,144 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) [2022-11-16 11:26:41,144 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) [2022-11-16 11:26:41,145 INFO L175 Difference]: Start difference. First operand has 230 places, 313 transitions, 3567 flow. Second operand 12 states and 1162 transitions. [2022-11-16 11:26:41,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 510 transitions, 5799 flow [2022-11-16 11:26:41,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 510 transitions, 5659 flow, removed 46 selfloop flow, removed 6 redundant places. [2022-11-16 11:26:41,460 INFO L231 Difference]: Finished difference. Result has 241 places, 339 transitions, 4219 flow [2022-11-16 11:26:41,460 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} [2022-11-16 11:26:41,461 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 108 predicate places. [2022-11-16 11:26:41,461 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 339 transitions, 4219 flow [2022-11-16 11:26:41,461 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) [2022-11-16 11:26:41,462 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:41,462 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] [2022-11-16 11:26:41,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:26:41,462 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)] === [2022-11-16 11:26:41,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:41,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1038783994, now seen corresponding path program 9 times [2022-11-16 11:26:41,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:41,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060989036] [2022-11-16 11:26:41,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:41,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:42,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:42,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:42,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060989036] [2022-11-16 11:26:42,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060989036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:42,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:42,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:26:42,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587496148] [2022-11-16 11:26:42,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:42,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:26:42,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:42,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:26:42,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:26:42,012 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-16 11:26:42,013 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) [2022-11-16 11:26:42,013 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:42,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-16 11:26:42,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:43,775 INFO L130 PetriNetUnfolder]: 810/2799 cut-off events. [2022-11-16 11:26:43,775 INFO L131 PetriNetUnfolder]: For 46629/46637 co-relation queries the response was YES. [2022-11-16 11:26:43,789 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. [2022-11-16 11:26:43,798 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 309 selfloop transitions, 100 changer transitions 54/537 dead transitions. [2022-11-16 11:26:43,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 537 transitions, 6445 flow [2022-11-16 11:26:43,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:26:43,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:26:43,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1162 transitions. [2022-11-16 11:26:43,803 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6498881431767338 [2022-11-16 11:26:43,804 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1162 transitions. [2022-11-16 11:26:43,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1162 transitions. [2022-11-16 11:26:43,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:43,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1162 transitions. [2022-11-16 11:26:43,807 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) [2022-11-16 11:26:43,810 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) [2022-11-16 11:26:43,810 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) [2022-11-16 11:26:43,811 INFO L175 Difference]: Start difference. First operand has 241 places, 339 transitions, 4219 flow. Second operand 12 states and 1162 transitions. [2022-11-16 11:26:43,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 537 transitions, 6445 flow [2022-11-16 11:26:44,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 537 transitions, 6255 flow, removed 61 selfloop flow, removed 5 redundant places. [2022-11-16 11:26:44,079 INFO L231 Difference]: Finished difference. Result has 254 places, 362 transitions, 4839 flow [2022-11-16 11:26:44,079 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} [2022-11-16 11:26:44,081 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 121 predicate places. [2022-11-16 11:26:44,082 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 362 transitions, 4839 flow [2022-11-16 11:26:44,082 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) [2022-11-16 11:26:44,082 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:44,083 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] [2022-11-16 11:26:44,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:26:44,083 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)] === [2022-11-16 11:26:44,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:44,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1358669058, now seen corresponding path program 10 times [2022-11-16 11:26:44,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:44,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980736943] [2022-11-16 11:26:44,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:44,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:44,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:44,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980736943] [2022-11-16 11:26:44,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980736943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:44,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:44,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:26:44,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351189213] [2022-11-16 11:26:44,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:44,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:26:44,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:44,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:26:44,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:26:44,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-16 11:26:44,712 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) [2022-11-16 11:26:44,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:44,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-16 11:26:44,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:46,524 INFO L130 PetriNetUnfolder]: 803/2824 cut-off events. [2022-11-16 11:26:46,524 INFO L131 PetriNetUnfolder]: For 56733/56741 co-relation queries the response was YES. [2022-11-16 11:26:46,539 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. [2022-11-16 11:26:46,548 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 248 selfloop transitions, 97 changer transitions 47/466 dead transitions. [2022-11-16 11:26:46,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 466 transitions, 6033 flow [2022-11-16 11:26:46,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:26:46,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:26:46,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1132 transitions. [2022-11-16 11:26:46,552 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6331096196868009 [2022-11-16 11:26:46,552 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1132 transitions. [2022-11-16 11:26:46,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1132 transitions. [2022-11-16 11:26:46,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:46,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1132 transitions. [2022-11-16 11:26:46,555 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) [2022-11-16 11:26:46,558 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) [2022-11-16 11:26:46,558 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) [2022-11-16 11:26:46,559 INFO L175 Difference]: Start difference. First operand has 254 places, 362 transitions, 4839 flow. Second operand 12 states and 1132 transitions. [2022-11-16 11:26:46,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 466 transitions, 6033 flow [2022-11-16 11:26:46,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 466 transitions, 5836 flow, removed 96 selfloop flow, removed 3 redundant places. [2022-11-16 11:26:46,900 INFO L231 Difference]: Finished difference. Result has 266 places, 363 transitions, 4886 flow [2022-11-16 11:26:46,900 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} [2022-11-16 11:26:46,901 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 133 predicate places. [2022-11-16 11:26:46,901 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 363 transitions, 4886 flow [2022-11-16 11:26:46,902 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) [2022-11-16 11:26:46,902 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:46,902 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] [2022-11-16 11:26:46,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:26:46,903 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)] === [2022-11-16 11:26:46,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:46,903 INFO L85 PathProgramCache]: Analyzing trace with hash 612822602, now seen corresponding path program 11 times [2022-11-16 11:26:46,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:46,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599373781] [2022-11-16 11:26:46,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:46,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:47,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:47,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:47,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599373781] [2022-11-16 11:26:47,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599373781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:47,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:47,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:26:47,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286522361] [2022-11-16 11:26:47,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:47,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:26:47,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:47,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:26:47,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:26:47,429 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-16 11:26:47,430 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) [2022-11-16 11:26:47,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:47,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-16 11:26:47,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:49,088 INFO L130 PetriNetUnfolder]: 831/2937 cut-off events. [2022-11-16 11:26:49,088 INFO L131 PetriNetUnfolder]: For 64981/64989 co-relation queries the response was YES. [2022-11-16 11:26:49,100 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. [2022-11-16 11:26:49,109 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 274 selfloop transitions, 99 changer transitions 57/504 dead transitions. [2022-11-16 11:26:49,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 504 transitions, 6607 flow [2022-11-16 11:26:49,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:26:49,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:26:49,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1222 transitions. [2022-11-16 11:26:49,113 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6308724832214765 [2022-11-16 11:26:49,113 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1222 transitions. [2022-11-16 11:26:49,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1222 transitions. [2022-11-16 11:26:49,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:49,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1222 transitions. [2022-11-16 11:26:49,116 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) [2022-11-16 11:26:49,119 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) [2022-11-16 11:26:49,120 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) [2022-11-16 11:26:49,120 INFO L175 Difference]: Start difference. First operand has 266 places, 363 transitions, 4886 flow. Second operand 13 states and 1222 transitions. [2022-11-16 11:26:49,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 504 transitions, 6607 flow [2022-11-16 11:26:49,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 504 transitions, 6373 flow, removed 19 selfloop flow, removed 8 redundant places. [2022-11-16 11:26:49,578 INFO L231 Difference]: Finished difference. Result has 277 places, 375 transitions, 5316 flow [2022-11-16 11:26:49,579 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} [2022-11-16 11:26:49,579 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 144 predicate places. [2022-11-16 11:26:49,580 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 375 transitions, 5316 flow [2022-11-16 11:26:49,580 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) [2022-11-16 11:26:49,580 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:49,580 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] [2022-11-16 11:26:49,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:26:49,581 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)] === [2022-11-16 11:26:49,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:49,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1786690454, now seen corresponding path program 12 times [2022-11-16 11:26:49,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:49,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040591910] [2022-11-16 11:26:49,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:49,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:50,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:50,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:50,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040591910] [2022-11-16 11:26:50,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040591910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:50,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:50,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:26:50,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085232819] [2022-11-16 11:26:50,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:50,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:26:50,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:50,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:26:50,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:26:50,036 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-16 11:26:50,037 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) [2022-11-16 11:26:50,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:50,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-16 11:26:50,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:51,634 INFO L130 PetriNetUnfolder]: 761/2803 cut-off events. [2022-11-16 11:26:51,635 INFO L131 PetriNetUnfolder]: For 63813/63821 co-relation queries the response was YES. [2022-11-16 11:26:51,649 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. [2022-11-16 11:26:51,656 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 294 selfloop transitions, 107 changer transitions 59/534 dead transitions. [2022-11-16 11:26:51,657 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 534 transitions, 7182 flow [2022-11-16 11:26:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:26:51,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:26:51,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1154 transitions. [2022-11-16 11:26:51,662 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.645413870246085 [2022-11-16 11:26:51,662 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1154 transitions. [2022-11-16 11:26:51,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1154 transitions. [2022-11-16 11:26:51,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:51,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1154 transitions. [2022-11-16 11:26:51,665 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) [2022-11-16 11:26:51,667 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) [2022-11-16 11:26:51,668 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) [2022-11-16 11:26:51,668 INFO L175 Difference]: Start difference. First operand has 277 places, 375 transitions, 5316 flow. Second operand 12 states and 1154 transitions. [2022-11-16 11:26:51,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 534 transitions, 7182 flow [2022-11-16 11:26:52,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 534 transitions, 6850 flow, removed 70 selfloop flow, removed 7 redundant places. [2022-11-16 11:26:52,037 INFO L231 Difference]: Finished difference. Result has 286 places, 384 transitions, 5561 flow [2022-11-16 11:26:52,037 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} [2022-11-16 11:26:52,038 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 153 predicate places. [2022-11-16 11:26:52,038 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 384 transitions, 5561 flow [2022-11-16 11:26:52,038 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) [2022-11-16 11:26:52,039 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:52,039 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] [2022-11-16 11:26:52,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:26:52,039 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)] === [2022-11-16 11:26:52,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:52,040 INFO L85 PathProgramCache]: Analyzing trace with hash 927999478, now seen corresponding path program 13 times [2022-11-16 11:26:52,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:52,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304960308] [2022-11-16 11:26:52,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:52,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:52,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:52,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:52,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304960308] [2022-11-16 11:26:52,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304960308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:52,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:52,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:26:52,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573782053] [2022-11-16 11:26:52,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:52,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:26:52,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:52,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:26:52,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:26:52,554 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-16 11:26:52,555 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) [2022-11-16 11:26:52,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:52,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-16 11:26:52,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:54,229 INFO L130 PetriNetUnfolder]: 706/2719 cut-off events. [2022-11-16 11:26:54,229 INFO L131 PetriNetUnfolder]: For 60299/60308 co-relation queries the response was YES. [2022-11-16 11:26:54,239 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. [2022-11-16 11:26:54,244 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 269 selfloop transitions, 109 changer transitions 68/510 dead transitions. [2022-11-16 11:26:54,244 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 510 transitions, 6957 flow [2022-11-16 11:26:54,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:26:54,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:26:54,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1227 transitions. [2022-11-16 11:26:54,250 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6334537945276201 [2022-11-16 11:26:54,250 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1227 transitions. [2022-11-16 11:26:54,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1227 transitions. [2022-11-16 11:26:54,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:54,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1227 transitions. [2022-11-16 11:26:54,254 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) [2022-11-16 11:26:54,256 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) [2022-11-16 11:26:54,257 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) [2022-11-16 11:26:54,257 INFO L175 Difference]: Start difference. First operand has 286 places, 384 transitions, 5561 flow. Second operand 13 states and 1227 transitions. [2022-11-16 11:26:54,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 510 transitions, 6957 flow [2022-11-16 11:26:54,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 510 transitions, 6597 flow, removed 92 selfloop flow, removed 16 redundant places. [2022-11-16 11:26:54,540 INFO L231 Difference]: Finished difference. Result has 282 places, 369 transitions, 5385 flow [2022-11-16 11:26:54,540 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} [2022-11-16 11:26:54,541 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 149 predicate places. [2022-11-16 11:26:54,541 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 369 transitions, 5385 flow [2022-11-16 11:26:54,541 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) [2022-11-16 11:26:54,542 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:26:54,542 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] [2022-11-16 11:26:54,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:26:54,542 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)] === [2022-11-16 11:26:54,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:54,543 INFO L85 PathProgramCache]: Analyzing trace with hash -235809187, now seen corresponding path program 1 times [2022-11-16 11:26:54,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:54,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008786840] [2022-11-16 11:26:54,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:54,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:55,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:55,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:55,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008786840] [2022-11-16 11:26:55,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008786840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:55,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:55,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:26:55,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244947972] [2022-11-16 11:26:55,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:55,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:26:55,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:55,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:26:55,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:26:55,038 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2022-11-16 11:26:55,039 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) [2022-11-16 11:26:55,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:26:55,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2022-11-16 11:26:55,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:26:56,014 INFO L130 PetriNetUnfolder]: 591/2031 cut-off events. [2022-11-16 11:26:56,014 INFO L131 PetriNetUnfolder]: For 44455/44455 co-relation queries the response was YES. [2022-11-16 11:26:56,024 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. [2022-11-16 11:26:56,026 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 0 selfloop transitions, 0 changer transitions 477/477 dead transitions. [2022-11-16 11:26:56,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 477 transitions, 8379 flow [2022-11-16 11:26:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:26:56,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:26:56,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 941 transitions. [2022-11-16 11:26:56,030 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.574130567419158 [2022-11-16 11:26:56,030 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 941 transitions. [2022-11-16 11:26:56,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 941 transitions. [2022-11-16 11:26:56,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:26:56,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 941 transitions. [2022-11-16 11:26:56,033 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) [2022-11-16 11:26:56,036 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) [2022-11-16 11:26:56,036 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) [2022-11-16 11:26:56,036 INFO L175 Difference]: Start difference. First operand has 282 places, 369 transitions, 5385 flow. Second operand 11 states and 941 transitions. [2022-11-16 11:26:56,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 477 transitions, 8379 flow [2022-11-16 11:26:56,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 477 transitions, 7679 flow, removed 91 selfloop flow, removed 20 redundant places. [2022-11-16 11:26:56,211 INFO L231 Difference]: Finished difference. Result has 259 places, 0 transitions, 0 flow [2022-11-16 11:26:56,211 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} [2022-11-16 11:26:56,211 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 126 predicate places. [2022-11-16 11:26:56,212 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 0 transitions, 0 flow [2022-11-16 11:26:56,212 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) [2022-11-16 11:26:56,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2022-11-16 11:26:56,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2022-11-16 11:26:56,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2022-11-16 11:26:56,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2022-11-16 11:26:56,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2022-11-16 11:26:56,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2022-11-16 11:26:56,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2022-11-16 11:26:56,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2022-11-16 11:26:56,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2022-11-16 11:26:56,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2022-11-16 11:26:56,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2022-11-16 11:26:56,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:26:56,219 INFO L444 BasicCegarLoop]: Path program histogram: [13, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:56,227 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:26:56,227 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:26:56,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:26:56 BasicIcfg [2022-11-16 11:26:56,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:26:56,235 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:26:56,235 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:26:56,235 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:26:56,236 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:26:16" (3/4) ... [2022-11-16 11:26:56,238 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:26:56,245 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 11:26:56,252 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-16 11:26:56,253 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 11:26:56,253 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:26:56,254 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:26:56,289 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:26:56,290 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:26:56,291 INFO L158 Benchmark]: Toolchain (without parser) took 40759.20ms. Allocated memory was 140.5MB in the beginning and 868.2MB in the end (delta: 727.7MB). Free memory was 101.1MB in the beginning and 562.5MB in the end (delta: -461.4MB). Peak memory consumption was 266.1MB. Max. memory is 16.1GB. [2022-11-16 11:26:56,291 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 140.5MB. Free memory was 119.0MB in the beginning and 118.8MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:26:56,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.38ms. Allocated memory is still 140.5MB. Free memory was 100.9MB in the beginning and 105.0MB in the end (delta: -4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:26:56,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.50ms. Allocated memory is still 140.5MB. Free memory was 105.0MB in the beginning and 102.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:26:56,292 INFO L158 Benchmark]: Boogie Preprocessor took 53.38ms. Allocated memory is still 140.5MB. Free memory was 102.8MB in the beginning and 100.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:26:56,293 INFO L158 Benchmark]: RCFGBuilder took 554.22ms. Allocated memory is still 140.5MB. Free memory was 100.0MB in the beginning and 81.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 11:26:56,293 INFO L158 Benchmark]: TraceAbstraction took 39470.86ms. Allocated memory was 140.5MB in the beginning and 868.2MB in the end (delta: 727.7MB). Free memory was 81.1MB in the beginning and 564.6MB in the end (delta: -483.4MB). Peak memory consumption was 244.9MB. Max. memory is 16.1GB. [2022-11-16 11:26:56,294 INFO L158 Benchmark]: Witness Printer took 55.15ms. Allocated memory is still 868.2MB. Free memory was 564.6MB in the beginning and 562.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:26:56,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 140.5MB. Free memory was 119.0MB in the beginning and 118.8MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 572.38ms. Allocated memory is still 140.5MB. Free memory was 100.9MB in the beginning and 105.0MB in the end (delta: -4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.50ms. Allocated memory is still 140.5MB. Free memory was 105.0MB in the beginning and 102.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.38ms. Allocated memory is still 140.5MB. Free memory was 102.8MB in the beginning and 100.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 554.22ms. Allocated memory is still 140.5MB. Free memory was 100.0MB in the beginning and 81.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 39470.86ms. Allocated memory was 140.5MB in the beginning and 868.2MB in the end (delta: 727.7MB). Free memory was 81.1MB in the beginning and 564.6MB in the end (delta: -483.4MB). Peak memory consumption was 244.9MB. Max. memory is 16.1GB. * Witness Printer took 55.15ms. Allocated memory is still 868.2MB. Free memory was 564.6MB in the beginning and 562.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 39.3s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 27.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3360 SdHoareTripleChecker+Valid, 11.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3360 mSDsluCounter, 1714 SdHoareTripleChecker+Invalid, 9.3s 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, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 393 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 323 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 5.1s 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, 0.3s SatisfiabilityAnalysisTime, 10.8s 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! [2022-11-16 11:26:56,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab2ef17-ad60-4018-98ff-77d658c10bb4/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE