./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:23:29,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:23:29,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:23:29,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:23:29,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:23:29,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:23:29,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:23:29,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:23:29,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:23:29,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:23:29,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:23:29,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:23:29,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:23:29,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:23:29,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:23:29,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:23:29,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:23:29,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:23:29,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:23:29,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:23:29,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:23:29,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:23:29,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:23:29,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:23:29,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:23:29,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:23:29,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:23:29,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:23:29,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:23:29,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:23:29,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:23:29,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:23:29,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:23:29,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:23:29,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:23:29,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:23:29,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:23:29,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:23:29,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:23:29,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:23:29,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:23:29,369 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:23:29,417 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:23:29,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:23:29,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:23:29,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:23:29,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:23:29,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:23:29,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:23:29,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:23:29,422 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:23:29,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:23:29,423 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:23:29,424 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:23:29,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:23:29,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:23:29,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:23:29,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:23:29,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:23:29,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:23:29,426 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:23:29,426 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:23:29,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:23:29,426 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:23:29,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:23:29,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:23:29,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:23:29,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:23:29,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:29,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:23:29,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:23:29,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:23:29,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:23:29,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:23:29,431 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:23:29,432 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:23:29,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:23:29,432 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_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 [2022-11-18 20:23:29,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:23:29,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:23:29,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:23:29,783 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:23:29,788 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:23:29,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-18 20:23:29,869 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/data/6a967560a/0902c6b50881420cb529f1394b8d5634/FLAGe64872b6b [2022-11-18 20:23:30,602 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:23:30,603 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2022-11-18 20:23:30,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/data/6a967560a/0902c6b50881420cb529f1394b8d5634/FLAGe64872b6b [2022-11-18 20:23:30,917 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/data/6a967560a/0902c6b50881420cb529f1394b8d5634 [2022-11-18 20:23:30,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:23:30,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:23:30,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:30,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:23:30,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:23:30,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:30" (1/1) ... [2022-11-18 20:23:30,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c7acd7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:30, skipping insertion in model container [2022-11-18 20:23:30,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:30" (1/1) ... [2022-11-18 20:23:30,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:23:30,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:23:31,257 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-18 20:23:31,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:31,289 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:23:31,336 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/sv-benchmarks/c/weaver/chl-node-trans.wvr.c[3945,3958] [2022-11-18 20:23:31,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:31,359 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:23:31,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:31 WrapperNode [2022-11-18 20:23:31,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:31,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:31,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:23:31,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:23:31,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:31" (1/1) ... [2022-11-18 20:23:31,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:31" (1/1) ... [2022-11-18 20:23:31,471 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 795 [2022-11-18 20:23:31,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:31,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:23:31,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:23:31,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:23:31,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:31" (1/1) ... [2022-11-18 20:23:31,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:31" (1/1) ... [2022-11-18 20:23:31,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:31" (1/1) ... [2022-11-18 20:23:31,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:31" (1/1) ... [2022-11-18 20:23:31,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:31" (1/1) ... [2022-11-18 20:23:31,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:31" (1/1) ... [2022-11-18 20:23:31,597 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:31" (1/1) ... [2022-11-18 20:23:31,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:31" (1/1) ... [2022-11-18 20:23:31,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:23:31,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:23:31,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:23:31,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:23:31,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:31" (1/1) ... [2022-11-18 20:23:31,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:31,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:31,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:23:31,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a567350c-ef7d-48a5-afb8-0168213e26a4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:23:31,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:23:31,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:23:31,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:23:31,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:23:31,727 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:23:31,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:23:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:23:31,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:23:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:23:31,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:23:31,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:23:31,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:23:31,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:23:31,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:23:31,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:23:31,736 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:23:31,940 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:23:31,942 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:23:33,380 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:23:33,403 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:23:33,403 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 20:23:33,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:33 BoogieIcfgContainer [2022-11-18 20:23:33,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:23:33,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:23:33,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:23:33,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:23:33,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:23:30" (1/3) ... [2022-11-18 20:23:33,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ba2209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:23:33, skipping insertion in model container [2022-11-18 20:23:33,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:31" (2/3) ... [2022-11-18 20:23:33,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ba2209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:23:33, skipping insertion in model container [2022-11-18 20:23:33,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:33" (3/3) ... [2022-11-18 20:23:33,421 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2022-11-18 20:23:33,436 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:23:33,446 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:23:33,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 117 error locations. [2022-11-18 20:23:33,447 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:23:33,694 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:23:33,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1011 places, 1049 transitions, 2122 flow [2022-11-18 20:23:34,565 INFO L130 PetriNetUnfolder]: 48/1046 cut-off events. [2022-11-18 20:23:34,566 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:23:34,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 1046 events. 48/1046 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2200 event pairs, 0 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 830. Up to 2 conditions per place. [2022-11-18 20:23:34,591 INFO L82 GeneralOperation]: Start removeDead. Operand has 1011 places, 1049 transitions, 2122 flow [2022-11-18 20:23:34,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 986 places, 1022 transitions, 2062 flow [2022-11-18 20:23:34,637 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:23:34,647 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;@1c574c12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:23:34,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 195 error locations. [2022-11-18 20:23:34,654 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-11-18 20:23:34,654 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:23:34,654 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:34,656 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:34,656 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:34,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:34,663 INFO L85 PathProgramCache]: Analyzing trace with hash 945327491, now seen corresponding path program 1 times [2022-11-18 20:23:34,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:34,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804317793] [2022-11-18 20:23:34,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:34,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:35,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:35,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:35,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804317793] [2022-11-18 20:23:35,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804317793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:35,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:35,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:35,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892758674] [2022-11-18 20:23:35,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:35,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:35,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:35,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:35,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:35,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 977 out of 1049 [2022-11-18 20:23:35,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 986 places, 1022 transitions, 2062 flow. Second operand has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:35,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:35,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 977 of 1049 [2022-11-18 20:23:35,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:37,665 INFO L130 PetriNetUnfolder]: 186/3267 cut-off events. [2022-11-18 20:23:37,666 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-11-18 20:23:37,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3610 conditions, 3267 events. 186/3267 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 21833 event pairs, 117 based on Foata normal form. 144/2788 useless extension candidates. Maximal degree in co-relation 2701. Up to 274 conditions per place. [2022-11-18 20:23:37,822 INFO L137 encePairwiseOnDemand]: 1018/1049 looper letters, 39 selfloop transitions, 2 changer transitions 16/993 dead transitions. [2022-11-18 20:23:37,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 987 places, 993 transitions, 2086 flow [2022-11-18 20:23:37,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:37,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:37,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3001 transitions. [2022-11-18 20:23:37,858 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9536066094693358 [2022-11-18 20:23:37,859 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3001 transitions. [2022-11-18 20:23:37,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3001 transitions. [2022-11-18 20:23:37,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:37,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3001 transitions. [2022-11-18 20:23:37,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1000.3333333333334) internal successors, (3001), 3 states have internal predecessors, (3001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:37,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:37,907 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:37,910 INFO L175 Difference]: Start difference. First operand has 986 places, 1022 transitions, 2062 flow. Second operand 3 states and 3001 transitions. [2022-11-18 20:23:37,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 987 places, 993 transitions, 2086 flow [2022-11-18 20:23:37,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 981 places, 993 transitions, 2074 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:23:37,952 INFO L231 Difference]: Finished difference. Result has 981 places, 977 transitions, 1964 flow [2022-11-18 20:23:37,957 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1992, PETRI_DIFFERENCE_MINUEND_PLACES=979, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=991, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1964, PETRI_PLACES=981, PETRI_TRANSITIONS=977} [2022-11-18 20:23:37,963 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -5 predicate places. [2022-11-18 20:23:37,964 INFO L495 AbstractCegarLoop]: Abstraction has has 981 places, 977 transitions, 1964 flow [2022-11-18 20:23:37,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:37,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:37,967 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] [2022-11-18 20:23:37,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:23:37,968 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:37,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:37,969 INFO L85 PathProgramCache]: Analyzing trace with hash 428563668, now seen corresponding path program 1 times [2022-11-18 20:23:37,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:37,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490897806] [2022-11-18 20:23:37,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:37,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:38,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:38,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:38,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490897806] [2022-11-18 20:23:38,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490897806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:38,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:38,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:38,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820113397] [2022-11-18 20:23:38,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:38,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:38,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:38,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:38,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:38,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 980 out of 1049 [2022-11-18 20:23:38,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 981 places, 977 transitions, 1964 flow. Second operand has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:38,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:38,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 980 of 1049 [2022-11-18 20:23:38,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:39,544 INFO L130 PetriNetUnfolder]: 117/2670 cut-off events. [2022-11-18 20:23:39,545 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-18 20:23:39,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2838 conditions, 2670 events. 117/2670 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 15759 event pairs, 60 based on Foata normal form. 0/2233 useless extension candidates. Maximal degree in co-relation 2791. Up to 146 conditions per place. [2022-11-18 20:23:39,630 INFO L137 encePairwiseOnDemand]: 1038/1049 looper letters, 27 selfloop transitions, 1 changer transitions 0/967 dead transitions. [2022-11-18 20:23:39,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 967 transitions, 2000 flow [2022-11-18 20:23:39,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:39,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:39,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2978 transitions. [2022-11-18 20:23:39,637 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.946298061646012 [2022-11-18 20:23:39,638 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2978 transitions. [2022-11-18 20:23:39,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2978 transitions. [2022-11-18 20:23:39,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:39,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2978 transitions. [2022-11-18 20:23:39,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 992.6666666666666) internal successors, (2978), 3 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:39,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:39,656 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:39,657 INFO L175 Difference]: Start difference. First operand has 981 places, 977 transitions, 1964 flow. Second operand 3 states and 2978 transitions. [2022-11-18 20:23:39,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 967 transitions, 2000 flow [2022-11-18 20:23:39,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 967 transitions, 1996 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:23:39,675 INFO L231 Difference]: Finished difference. Result has 955 places, 967 transitions, 1942 flow [2022-11-18 20:23:39,677 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1940, PETRI_DIFFERENCE_MINUEND_PLACES=953, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=967, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=966, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1942, PETRI_PLACES=955, PETRI_TRANSITIONS=967} [2022-11-18 20:23:39,678 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -31 predicate places. [2022-11-18 20:23:39,679 INFO L495 AbstractCegarLoop]: Abstraction has has 955 places, 967 transitions, 1942 flow [2022-11-18 20:23:39,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:39,681 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:39,681 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:39,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:23:39,682 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:39,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:39,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1978544461, now seen corresponding path program 1 times [2022-11-18 20:23:39,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:39,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890150472] [2022-11-18 20:23:39,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:39,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:39,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:39,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:39,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890150472] [2022-11-18 20:23:39,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890150472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:39,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:39,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:39,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97613743] [2022-11-18 20:23:39,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:39,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:39,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:39,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:39,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:39,754 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 977 out of 1049 [2022-11-18 20:23:39,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 967 transitions, 1942 flow. Second operand has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:39,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:39,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 977 of 1049 [2022-11-18 20:23:39,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:41,574 INFO L130 PetriNetUnfolder]: 395/5097 cut-off events. [2022-11-18 20:23:41,575 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-18 20:23:41,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5747 conditions, 5097 events. 395/5097 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 42876 event pairs, 279 based on Foata normal form. 0/4170 useless extension candidates. Maximal degree in co-relation 5701. Up to 534 conditions per place. [2022-11-18 20:23:41,801 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 39 selfloop transitions, 2 changer transitions 0/966 dead transitions. [2022-11-18 20:23:41,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 956 places, 966 transitions, 2022 flow [2022-11-18 20:23:41,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:41,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:41,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2973 transitions. [2022-11-18 20:23:41,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9447092469018112 [2022-11-18 20:23:41,827 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2973 transitions. [2022-11-18 20:23:41,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2973 transitions. [2022-11-18 20:23:41,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:41,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2973 transitions. [2022-11-18 20:23:41,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 991.0) internal successors, (2973), 3 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:41,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:41,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:41,849 INFO L175 Difference]: Start difference. First operand has 955 places, 967 transitions, 1942 flow. Second operand 3 states and 2973 transitions. [2022-11-18 20:23:41,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 956 places, 966 transitions, 2022 flow [2022-11-18 20:23:41,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 966 transitions, 2021 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:23:41,871 INFO L231 Difference]: Finished difference. Result has 955 places, 966 transitions, 1943 flow [2022-11-18 20:23:41,873 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=953, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=964, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1943, PETRI_PLACES=955, PETRI_TRANSITIONS=966} [2022-11-18 20:23:41,874 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -31 predicate places. [2022-11-18 20:23:41,874 INFO L495 AbstractCegarLoop]: Abstraction has has 955 places, 966 transitions, 1943 flow [2022-11-18 20:23:41,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:41,876 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:41,876 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:41,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:23:41,877 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:41,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:41,878 INFO L85 PathProgramCache]: Analyzing trace with hash 2119979741, now seen corresponding path program 1 times [2022-11-18 20:23:41,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:41,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731481533] [2022-11-18 20:23:41,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:41,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:41,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:41,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:41,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731481533] [2022-11-18 20:23:41,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731481533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:41,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:41,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:41,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295035013] [2022-11-18 20:23:41,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:41,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:41,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:41,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:41,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:41,995 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 980 out of 1049 [2022-11-18 20:23:42,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 966 transitions, 1943 flow. Second operand has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:42,000 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:42,000 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 980 of 1049 [2022-11-18 20:23:42,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:43,469 INFO L130 PetriNetUnfolder]: 225/3997 cut-off events. [2022-11-18 20:23:43,470 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 20:23:43,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4326 conditions, 3997 events. 225/3997 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 30568 event pairs, 132 based on Foata normal form. 0/3357 useless extension candidates. Maximal degree in co-relation 4281. Up to 264 conditions per place. [2022-11-18 20:23:43,577 INFO L137 encePairwiseOnDemand]: 1038/1049 looper letters, 27 selfloop transitions, 1 changer transitions 0/956 dead transitions. [2022-11-18 20:23:43,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 947 places, 956 transitions, 1979 flow [2022-11-18 20:23:43,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:43,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:43,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2978 transitions. [2022-11-18 20:23:43,584 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.946298061646012 [2022-11-18 20:23:43,585 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2978 transitions. [2022-11-18 20:23:43,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2978 transitions. [2022-11-18 20:23:43,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:43,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2978 transitions. [2022-11-18 20:23:43,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 992.6666666666666) internal successors, (2978), 3 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:43,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:43,608 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:43,608 INFO L175 Difference]: Start difference. First operand has 955 places, 966 transitions, 1943 flow. Second operand 3 states and 2978 transitions. [2022-11-18 20:23:43,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 947 places, 956 transitions, 1979 flow [2022-11-18 20:23:43,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 945 places, 956 transitions, 1975 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:23:43,627 INFO L231 Difference]: Finished difference. Result has 945 places, 956 transitions, 1921 flow [2022-11-18 20:23:43,629 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1919, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1921, PETRI_PLACES=945, PETRI_TRANSITIONS=956} [2022-11-18 20:23:43,630 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -41 predicate places. [2022-11-18 20:23:43,631 INFO L495 AbstractCegarLoop]: Abstraction has has 945 places, 956 transitions, 1921 flow [2022-11-18 20:23:43,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:43,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:43,634 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] [2022-11-18 20:23:43,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:23:43,634 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:43,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:43,635 INFO L85 PathProgramCache]: Analyzing trace with hash -434408361, now seen corresponding path program 1 times [2022-11-18 20:23:43,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:43,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969124593] [2022-11-18 20:23:43,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:43,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:43,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:43,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969124593] [2022-11-18 20:23:43,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969124593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:43,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:43,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:43,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438202245] [2022-11-18 20:23:43,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:43,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:43,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:43,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:43,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:43,744 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 977 out of 1049 [2022-11-18 20:23:43,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 956 transitions, 1921 flow. Second operand has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:43,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:43,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 977 of 1049 [2022-11-18 20:23:43,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:45,914 INFO L130 PetriNetUnfolder]: 400/4758 cut-off events. [2022-11-18 20:23:45,915 INFO L131 PetriNetUnfolder]: For 122/166 co-relation queries the response was YES. [2022-11-18 20:23:45,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5325 conditions, 4758 events. 400/4758 cut-off events. For 122/166 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 40103 event pairs, 279 based on Foata normal form. 0/3932 useless extension candidates. Maximal degree in co-relation 5279. Up to 549 conditions per place. [2022-11-18 20:23:46,069 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 39 selfloop transitions, 2 changer transitions 0/955 dead transitions. [2022-11-18 20:23:46,069 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 946 places, 955 transitions, 2001 flow [2022-11-18 20:23:46,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:46,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:46,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2973 transitions. [2022-11-18 20:23:46,079 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9447092469018112 [2022-11-18 20:23:46,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2973 transitions. [2022-11-18 20:23:46,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2973 transitions. [2022-11-18 20:23:46,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:46,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2973 transitions. [2022-11-18 20:23:46,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 991.0) internal successors, (2973), 3 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:46,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:46,103 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:46,104 INFO L175 Difference]: Start difference. First operand has 945 places, 956 transitions, 1921 flow. Second operand 3 states and 2973 transitions. [2022-11-18 20:23:46,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 946 places, 955 transitions, 2001 flow [2022-11-18 20:23:46,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 945 places, 955 transitions, 2000 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:23:46,128 INFO L231 Difference]: Finished difference. Result has 945 places, 955 transitions, 1922 flow [2022-11-18 20:23:46,130 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1918, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=953, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1922, PETRI_PLACES=945, PETRI_TRANSITIONS=955} [2022-11-18 20:23:46,131 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -41 predicate places. [2022-11-18 20:23:46,131 INFO L495 AbstractCegarLoop]: Abstraction has has 945 places, 955 transitions, 1922 flow [2022-11-18 20:23:46,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 978.3333333333334) internal successors, (2935), 3 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:46,133 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:46,134 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:46,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:23:46,134 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:46,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:46,135 INFO L85 PathProgramCache]: Analyzing trace with hash -874842413, now seen corresponding path program 1 times [2022-11-18 20:23:46,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:46,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831105138] [2022-11-18 20:23:46,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:46,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:46,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:46,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831105138] [2022-11-18 20:23:46,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831105138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:46,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:46,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:46,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924397125] [2022-11-18 20:23:46,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:46,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:46,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:46,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:46,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:46,268 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 980 out of 1049 [2022-11-18 20:23:46,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 955 transitions, 1922 flow. Second operand has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:46,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:46,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 980 of 1049 [2022-11-18 20:23:46,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:47,604 INFO L130 PetriNetUnfolder]: 227/3715 cut-off events. [2022-11-18 20:23:47,604 INFO L131 PetriNetUnfolder]: For 65/94 co-relation queries the response was YES. [2022-11-18 20:23:47,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4007 conditions, 3715 events. 227/3715 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 27120 event pairs, 132 based on Foata normal form. 0/3161 useless extension candidates. Maximal degree in co-relation 3962. Up to 274 conditions per place. [2022-11-18 20:23:47,690 INFO L137 encePairwiseOnDemand]: 1038/1049 looper letters, 27 selfloop transitions, 1 changer transitions 0/945 dead transitions. [2022-11-18 20:23:47,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 937 places, 945 transitions, 1958 flow [2022-11-18 20:23:47,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:47,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2978 transitions. [2022-11-18 20:23:47,699 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.946298061646012 [2022-11-18 20:23:47,699 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2978 transitions. [2022-11-18 20:23:47,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2978 transitions. [2022-11-18 20:23:47,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:47,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2978 transitions. [2022-11-18 20:23:47,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 992.6666666666666) internal successors, (2978), 3 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:47,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:47,720 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:47,720 INFO L175 Difference]: Start difference. First operand has 945 places, 955 transitions, 1922 flow. Second operand 3 states and 2978 transitions. [2022-11-18 20:23:47,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 937 places, 945 transitions, 1958 flow [2022-11-18 20:23:47,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 945 transitions, 1954 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:23:47,739 INFO L231 Difference]: Finished difference. Result has 935 places, 945 transitions, 1900 flow [2022-11-18 20:23:47,741 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1898, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1900, PETRI_PLACES=935, PETRI_TRANSITIONS=945} [2022-11-18 20:23:47,742 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -51 predicate places. [2022-11-18 20:23:47,743 INFO L495 AbstractCegarLoop]: Abstraction has has 935 places, 945 transitions, 1900 flow [2022-11-18 20:23:47,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 981.3333333333334) internal successors, (2944), 3 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:47,744 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:47,745 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:47,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:23:47,745 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:47,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:47,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1632069327, now seen corresponding path program 1 times [2022-11-18 20:23:47,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:47,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345081283] [2022-11-18 20:23:47,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:47,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:47,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:47,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:47,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345081283] [2022-11-18 20:23:47,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345081283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:47,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:47,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:47,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511555959] [2022-11-18 20:23:47,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:47,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:47,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:47,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:47,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:47,813 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1049 [2022-11-18 20:23:47,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 945 transitions, 1900 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:47,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:47,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1049 [2022-11-18 20:23:47,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:48,299 INFO L130 PetriNetUnfolder]: 30/1280 cut-off events. [2022-11-18 20:23:48,299 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-18 20:23:48,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1324 conditions, 1280 events. 30/1280 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3686 event pairs, 6 based on Foata normal form. 0/1119 useless extension candidates. Maximal degree in co-relation 1278. Up to 28 conditions per place. [2022-11-18 20:23:48,331 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 15 selfloop transitions, 2 changer transitions 0/944 dead transitions. [2022-11-18 20:23:48,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 944 transitions, 1932 flow [2022-11-18 20:23:48,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:48,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:48,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3021 transitions. [2022-11-18 20:23:48,341 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9599618684461392 [2022-11-18 20:23:48,341 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3021 transitions. [2022-11-18 20:23:48,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3021 transitions. [2022-11-18 20:23:48,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:48,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3021 transitions. [2022-11-18 20:23:48,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1007.0) internal successors, (3021), 3 states have internal predecessors, (3021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:48,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:48,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:48,362 INFO L175 Difference]: Start difference. First operand has 935 places, 945 transitions, 1900 flow. Second operand 3 states and 3021 transitions. [2022-11-18 20:23:48,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 944 transitions, 1932 flow [2022-11-18 20:23:48,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 944 transitions, 1931 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:23:48,381 INFO L231 Difference]: Finished difference. Result has 935 places, 944 transitions, 1901 flow [2022-11-18 20:23:48,383 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1897, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=942, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1901, PETRI_PLACES=935, PETRI_TRANSITIONS=944} [2022-11-18 20:23:48,384 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -51 predicate places. [2022-11-18 20:23:48,385 INFO L495 AbstractCegarLoop]: Abstraction has has 935 places, 944 transitions, 1901 flow [2022-11-18 20:23:48,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:48,387 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:48,387 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:48,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:23:48,388 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:48,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:48,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1691410949, now seen corresponding path program 1 times [2022-11-18 20:23:48,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:48,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371530685] [2022-11-18 20:23:48,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:48,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:48,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:48,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:48,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371530685] [2022-11-18 20:23:48,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371530685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:48,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:48,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:48,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844280968] [2022-11-18 20:23:48,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:48,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:48,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:48,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:48,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:48,481 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-18 20:23:48,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 944 transitions, 1901 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:48,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:48,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-18 20:23:48,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:48,949 INFO L130 PetriNetUnfolder]: 48/1523 cut-off events. [2022-11-18 20:23:48,949 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:23:48,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1608 conditions, 1523 events. 48/1523 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6662 event pairs, 18 based on Foata normal form. 0/1321 useless extension candidates. Maximal degree in co-relation 1562. Up to 55 conditions per place. [2022-11-18 20:23:48,984 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/943 dead transitions. [2022-11-18 20:23:48,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 943 transitions, 1939 flow [2022-11-18 20:23:48,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:48,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:48,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-18 20:23:48,994 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-18 20:23:48,994 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-18 20:23:48,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-18 20:23:48,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:48,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-18 20:23:49,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:49,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:49,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:49,015 INFO L175 Difference]: Start difference. First operand has 935 places, 944 transitions, 1901 flow. Second operand 3 states and 3015 transitions. [2022-11-18 20:23:49,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 943 transitions, 1939 flow [2022-11-18 20:23:49,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 943 transitions, 1935 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:23:49,035 INFO L231 Difference]: Finished difference. Result has 934 places, 943 transitions, 1899 flow [2022-11-18 20:23:49,037 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1895, PETRI_DIFFERENCE_MINUEND_PLACES=932, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=943, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=941, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1899, PETRI_PLACES=934, PETRI_TRANSITIONS=943} [2022-11-18 20:23:49,038 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -52 predicate places. [2022-11-18 20:23:49,038 INFO L495 AbstractCegarLoop]: Abstraction has has 934 places, 943 transitions, 1899 flow [2022-11-18 20:23:49,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:49,040 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:49,041 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] [2022-11-18 20:23:49,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:23:49,041 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:49,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:49,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1567237602, now seen corresponding path program 1 times [2022-11-18 20:23:49,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:49,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073087562] [2022-11-18 20:23:49,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:49,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:49,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:49,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:49,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073087562] [2022-11-18 20:23:49,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073087562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:49,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:49,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:49,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179394899] [2022-11-18 20:23:49,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:49,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:49,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:49,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:49,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:49,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-18 20:23:49,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 934 places, 943 transitions, 1899 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:49,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:49,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-18 20:23:49,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:49,695 INFO L130 PetriNetUnfolder]: 48/1484 cut-off events. [2022-11-18 20:23:49,695 INFO L131 PetriNetUnfolder]: For 3/21 co-relation queries the response was YES. [2022-11-18 20:23:49,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 1484 events. 48/1484 cut-off events. For 3/21 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6132 event pairs, 18 based on Foata normal form. 0/1289 useless extension candidates. Maximal degree in co-relation 1523. Up to 55 conditions per place. [2022-11-18 20:23:49,721 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/942 dead transitions. [2022-11-18 20:23:49,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 942 transitions, 1937 flow [2022-11-18 20:23:49,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:49,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:49,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-18 20:23:49,738 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-18 20:23:49,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-18 20:23:49,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-18 20:23:49,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:49,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-18 20:23:49,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:49,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:49,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:49,762 INFO L175 Difference]: Start difference. First operand has 934 places, 943 transitions, 1899 flow. Second operand 3 states and 3015 transitions. [2022-11-18 20:23:49,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 942 transitions, 1937 flow [2022-11-18 20:23:49,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 933 places, 942 transitions, 1933 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:23:49,785 INFO L231 Difference]: Finished difference. Result has 933 places, 942 transitions, 1897 flow [2022-11-18 20:23:49,787 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1893, PETRI_DIFFERENCE_MINUEND_PLACES=931, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1897, PETRI_PLACES=933, PETRI_TRANSITIONS=942} [2022-11-18 20:23:49,788 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -53 predicate places. [2022-11-18 20:23:49,788 INFO L495 AbstractCegarLoop]: Abstraction has has 933 places, 942 transitions, 1897 flow [2022-11-18 20:23:49,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:49,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:49,790 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:49,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:23:49,791 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:49,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:49,791 INFO L85 PathProgramCache]: Analyzing trace with hash 498944224, now seen corresponding path program 1 times [2022-11-18 20:23:49,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:49,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045405832] [2022-11-18 20:23:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:49,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:49,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:49,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045405832] [2022-11-18 20:23:49,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045405832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:49,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:49,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:49,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239795269] [2022-11-18 20:23:49,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:49,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:49,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:49,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:49,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:49,944 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1049 [2022-11-18 20:23:49,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 933 places, 942 transitions, 1897 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:49,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:49,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1049 [2022-11-18 20:23:49,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:50,345 INFO L130 PetriNetUnfolder]: 27/1136 cut-off events. [2022-11-18 20:23:50,346 INFO L131 PetriNetUnfolder]: For 6/12 co-relation queries the response was YES. [2022-11-18 20:23:50,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1179 conditions, 1136 events. 27/1136 cut-off events. For 6/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3099 event pairs, 6 based on Foata normal form. 0/1002 useless extension candidates. Maximal degree in co-relation 1133. Up to 28 conditions per place. [2022-11-18 20:23:50,375 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 15 selfloop transitions, 2 changer transitions 0/941 dead transitions. [2022-11-18 20:23:50,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 934 places, 941 transitions, 1929 flow [2022-11-18 20:23:50,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:50,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:50,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3021 transitions. [2022-11-18 20:23:50,384 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9599618684461392 [2022-11-18 20:23:50,385 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3021 transitions. [2022-11-18 20:23:50,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3021 transitions. [2022-11-18 20:23:50,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:50,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3021 transitions. [2022-11-18 20:23:50,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1007.0) internal successors, (3021), 3 states have internal predecessors, (3021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:50,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:50,404 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:50,405 INFO L175 Difference]: Start difference. First operand has 933 places, 942 transitions, 1897 flow. Second operand 3 states and 3021 transitions. [2022-11-18 20:23:50,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 934 places, 941 transitions, 1929 flow [2022-11-18 20:23:50,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 932 places, 941 transitions, 1925 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:23:50,428 INFO L231 Difference]: Finished difference. Result has 932 places, 941 transitions, 1895 flow [2022-11-18 20:23:50,430 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1891, PETRI_DIFFERENCE_MINUEND_PLACES=930, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1895, PETRI_PLACES=932, PETRI_TRANSITIONS=941} [2022-11-18 20:23:50,430 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -54 predicate places. [2022-11-18 20:23:50,431 INFO L495 AbstractCegarLoop]: Abstraction has has 932 places, 941 transitions, 1895 flow [2022-11-18 20:23:50,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:50,433 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:50,433 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:50,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:23:50,433 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:50,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:50,434 INFO L85 PathProgramCache]: Analyzing trace with hash -583187756, now seen corresponding path program 1 times [2022-11-18 20:23:50,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:50,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795411857] [2022-11-18 20:23:50,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:50,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:50,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:50,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795411857] [2022-11-18 20:23:50,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795411857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:50,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:50,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:50,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419687092] [2022-11-18 20:23:50,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:50,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:50,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:50,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:50,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:50,498 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-18 20:23:50,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 932 places, 941 transitions, 1895 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:50,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:50,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-18 20:23:50,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:51,099 INFO L130 PetriNetUnfolder]: 45/1379 cut-off events. [2022-11-18 20:23:51,100 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-18 20:23:51,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 1379 events. 45/1379 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5296 event pairs, 18 based on Foata normal form. 0/1197 useless extension candidates. Maximal degree in co-relation 1409. Up to 55 conditions per place. [2022-11-18 20:23:51,133 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/940 dead transitions. [2022-11-18 20:23:51,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 933 places, 940 transitions, 1933 flow [2022-11-18 20:23:51,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:51,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:51,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-18 20:23:51,143 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-18 20:23:51,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-18 20:23:51,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-18 20:23:51,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:51,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-18 20:23:51,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:51,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:51,167 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:51,168 INFO L175 Difference]: Start difference. First operand has 932 places, 941 transitions, 1895 flow. Second operand 3 states and 3015 transitions. [2022-11-18 20:23:51,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 933 places, 940 transitions, 1933 flow [2022-11-18 20:23:51,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 931 places, 940 transitions, 1929 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:23:51,194 INFO L231 Difference]: Finished difference. Result has 931 places, 940 transitions, 1893 flow [2022-11-18 20:23:51,196 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=929, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=940, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=938, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1893, PETRI_PLACES=931, PETRI_TRANSITIONS=940} [2022-11-18 20:23:51,197 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -55 predicate places. [2022-11-18 20:23:51,197 INFO L495 AbstractCegarLoop]: Abstraction has has 931 places, 940 transitions, 1893 flow [2022-11-18 20:23:51,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:51,199 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:51,200 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:51,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:23:51,200 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:51,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:51,201 INFO L85 PathProgramCache]: Analyzing trace with hash -229729452, now seen corresponding path program 1 times [2022-11-18 20:23:51,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:51,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883994583] [2022-11-18 20:23:51,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:51,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:51,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:51,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:51,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883994583] [2022-11-18 20:23:51,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883994583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:51,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:51,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:51,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579181211] [2022-11-18 20:23:51,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:51,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:51,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:51,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:51,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:51,271 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-18 20:23:51,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 931 places, 940 transitions, 1893 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:51,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:51,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-18 20:23:51,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:51,835 INFO L130 PetriNetUnfolder]: 45/1340 cut-off events. [2022-11-18 20:23:51,835 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-18 20:23:51,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1416 conditions, 1340 events. 45/1340 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5106 event pairs, 18 based on Foata normal form. 0/1165 useless extension candidates. Maximal degree in co-relation 1370. Up to 55 conditions per place. [2022-11-18 20:23:51,865 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/939 dead transitions. [2022-11-18 20:23:51,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 932 places, 939 transitions, 1931 flow [2022-11-18 20:23:51,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:51,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:51,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-18 20:23:51,878 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-18 20:23:51,878 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-18 20:23:51,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-18 20:23:51,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:51,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-18 20:23:51,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:51,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:51,900 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:51,900 INFO L175 Difference]: Start difference. First operand has 931 places, 940 transitions, 1893 flow. Second operand 3 states and 3015 transitions. [2022-11-18 20:23:51,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 932 places, 939 transitions, 1931 flow [2022-11-18 20:23:51,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 930 places, 939 transitions, 1927 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:23:51,926 INFO L231 Difference]: Finished difference. Result has 930 places, 939 transitions, 1891 flow [2022-11-18 20:23:51,928 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1887, PETRI_DIFFERENCE_MINUEND_PLACES=928, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=939, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=937, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1891, PETRI_PLACES=930, PETRI_TRANSITIONS=939} [2022-11-18 20:23:51,930 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -56 predicate places. [2022-11-18 20:23:51,930 INFO L495 AbstractCegarLoop]: Abstraction has has 930 places, 939 transitions, 1891 flow [2022-11-18 20:23:51,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:51,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:51,933 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:51,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:23:51,933 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:51,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:51,934 INFO L85 PathProgramCache]: Analyzing trace with hash 350400567, now seen corresponding path program 1 times [2022-11-18 20:23:51,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:51,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131889822] [2022-11-18 20:23:51,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:51,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:52,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:52,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:52,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131889822] [2022-11-18 20:23:52,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131889822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:52,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:52,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:52,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151491380] [2022-11-18 20:23:52,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:52,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:52,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:52,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:52,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:52,017 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1049 [2022-11-18 20:23:52,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 930 places, 939 transitions, 1891 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:52,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:52,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1049 [2022-11-18 20:23:52,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:52,476 INFO L130 PetriNetUnfolder]: 24/972 cut-off events. [2022-11-18 20:23:52,477 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-18 20:23:52,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1011 conditions, 972 events. 24/972 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2303 event pairs, 6 based on Foata normal form. 0/869 useless extension candidates. Maximal degree in co-relation 965. Up to 27 conditions per place. [2022-11-18 20:23:52,503 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 14 selfloop transitions, 2 changer transitions 0/938 dead transitions. [2022-11-18 20:23:52,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 931 places, 938 transitions, 1921 flow [2022-11-18 20:23:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:52,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:52,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3020 transitions. [2022-11-18 20:23:52,512 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9596441054972991 [2022-11-18 20:23:52,513 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3020 transitions. [2022-11-18 20:23:52,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3020 transitions. [2022-11-18 20:23:52,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:52,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3020 transitions. [2022-11-18 20:23:52,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1006.6666666666666) internal successors, (3020), 3 states have internal predecessors, (3020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:52,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:52,532 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:52,532 INFO L175 Difference]: Start difference. First operand has 930 places, 939 transitions, 1891 flow. Second operand 3 states and 3020 transitions. [2022-11-18 20:23:52,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 931 places, 938 transitions, 1921 flow [2022-11-18 20:23:52,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 929 places, 938 transitions, 1917 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:23:52,559 INFO L231 Difference]: Finished difference. Result has 929 places, 938 transitions, 1889 flow [2022-11-18 20:23:52,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1885, PETRI_DIFFERENCE_MINUEND_PLACES=927, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1889, PETRI_PLACES=929, PETRI_TRANSITIONS=938} [2022-11-18 20:23:52,562 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -57 predicate places. [2022-11-18 20:23:52,562 INFO L495 AbstractCegarLoop]: Abstraction has has 929 places, 938 transitions, 1889 flow [2022-11-18 20:23:52,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:52,564 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:52,564 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:52,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:23:52,565 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:52,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:52,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1496139227, now seen corresponding path program 1 times [2022-11-18 20:23:52,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:52,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478724353] [2022-11-18 20:23:52,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:52,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:52,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:52,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478724353] [2022-11-18 20:23:52,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478724353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:52,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:52,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:52,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710965486] [2022-11-18 20:23:52,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:52,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:52,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:52,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:52,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:52,653 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-18 20:23:52,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 929 places, 938 transitions, 1889 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:52,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:52,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-18 20:23:52,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:53,246 INFO L130 PetriNetUnfolder]: 42/1215 cut-off events. [2022-11-18 20:23:53,246 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-18 20:23:53,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1282 conditions, 1215 events. 42/1215 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3863 event pairs, 18 based on Foata normal form. 0/1063 useless extension candidates. Maximal degree in co-relation 1236. Up to 55 conditions per place. [2022-11-18 20:23:53,279 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/937 dead transitions. [2022-11-18 20:23:53,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 930 places, 937 transitions, 1927 flow [2022-11-18 20:23:53,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:53,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:53,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-18 20:23:53,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-18 20:23:53,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-18 20:23:53,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-18 20:23:53,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:53,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-18 20:23:53,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:53,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:53,306 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:53,306 INFO L175 Difference]: Start difference. First operand has 929 places, 938 transitions, 1889 flow. Second operand 3 states and 3015 transitions. [2022-11-18 20:23:53,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 930 places, 937 transitions, 1927 flow [2022-11-18 20:23:53,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 928 places, 937 transitions, 1923 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:23:53,331 INFO L231 Difference]: Finished difference. Result has 928 places, 937 transitions, 1887 flow [2022-11-18 20:23:53,333 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1883, PETRI_DIFFERENCE_MINUEND_PLACES=926, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=935, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1887, PETRI_PLACES=928, PETRI_TRANSITIONS=937} [2022-11-18 20:23:53,334 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -58 predicate places. [2022-11-18 20:23:53,334 INFO L495 AbstractCegarLoop]: Abstraction has has 928 places, 937 transitions, 1887 flow [2022-11-18 20:23:53,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:53,336 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:53,336 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:53,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:23:53,337 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:53,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:53,338 INFO L85 PathProgramCache]: Analyzing trace with hash 743604380, now seen corresponding path program 1 times [2022-11-18 20:23:53,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:53,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799660114] [2022-11-18 20:23:53,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:53,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:53,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:53,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:53,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799660114] [2022-11-18 20:23:53,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799660114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:53,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:53,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:53,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184083128] [2022-11-18 20:23:53,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:53,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:53,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:53,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:53,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:53,424 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 998 out of 1049 [2022-11-18 20:23:53,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 928 places, 937 transitions, 1887 flow. Second operand has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:53,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:53,430 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 998 of 1049 [2022-11-18 20:23:53,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:53,965 INFO L130 PetriNetUnfolder]: 42/1176 cut-off events. [2022-11-18 20:23:53,965 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-18 20:23:53,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 1176 events. 42/1176 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3657 event pairs, 18 based on Foata normal form. 0/1031 useless extension candidates. Maximal degree in co-relation 1197. Up to 55 conditions per place. [2022-11-18 20:23:53,984 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 18 selfloop transitions, 2 changer transitions 0/936 dead transitions. [2022-11-18 20:23:53,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 929 places, 936 transitions, 1925 flow [2022-11-18 20:23:53,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:53,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:53,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3015 transitions. [2022-11-18 20:23:53,994 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9580552907530981 [2022-11-18 20:23:53,994 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3015 transitions. [2022-11-18 20:23:53,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3015 transitions. [2022-11-18 20:23:53,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:53,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3015 transitions. [2022-11-18 20:23:54,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1005.0) internal successors, (3015), 3 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:54,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:54,013 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:54,014 INFO L175 Difference]: Start difference. First operand has 928 places, 937 transitions, 1887 flow. Second operand 3 states and 3015 transitions. [2022-11-18 20:23:54,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 929 places, 936 transitions, 1925 flow [2022-11-18 20:23:54,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 927 places, 936 transitions, 1921 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:23:54,039 INFO L231 Difference]: Finished difference. Result has 927 places, 936 transitions, 1885 flow [2022-11-18 20:23:54,041 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=925, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=936, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=934, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1885, PETRI_PLACES=927, PETRI_TRANSITIONS=936} [2022-11-18 20:23:54,041 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -59 predicate places. [2022-11-18 20:23:54,042 INFO L495 AbstractCegarLoop]: Abstraction has has 927 places, 936 transitions, 1885 flow [2022-11-18 20:23:54,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 999.3333333333334) internal successors, (2998), 3 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:54,043 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:54,043 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:54,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:23:54,044 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:54,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:54,045 INFO L85 PathProgramCache]: Analyzing trace with hash 295586313, now seen corresponding path program 1 times [2022-11-18 20:23:54,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:54,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918409211] [2022-11-18 20:23:54,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:54,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:54,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:54,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:54,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918409211] [2022-11-18 20:23:54,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918409211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:54,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:54,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:23:54,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849724143] [2022-11-18 20:23:54,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:54,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:54,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:54,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:54,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:54,149 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 995 out of 1049 [2022-11-18 20:23:54,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 927 places, 936 transitions, 1885 flow. Second operand has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:54,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:54,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 995 of 1049 [2022-11-18 20:23:54,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:23:55,382 INFO L130 PetriNetUnfolder]: 108/2537 cut-off events. [2022-11-18 20:23:55,383 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-18 20:23:55,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 2537 events. 108/2537 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 14356 event pairs, 60 based on Foata normal form. 0/2174 useless extension candidates. Maximal degree in co-relation 2663. Up to 148 conditions per place. [2022-11-18 20:23:55,451 INFO L137 encePairwiseOnDemand]: 1046/1049 looper letters, 21 selfloop transitions, 2 changer transitions 0/935 dead transitions. [2022-11-18 20:23:55,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 928 places, 935 transitions, 1929 flow [2022-11-18 20:23:55,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:55,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:23:55,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3009 transitions. [2022-11-18 20:23:55,458 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9561487130600572 [2022-11-18 20:23:55,458 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3009 transitions. [2022-11-18 20:23:55,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3009 transitions. [2022-11-18 20:23:55,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:23:55,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3009 transitions. [2022-11-18 20:23:55,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1003.0) internal successors, (3009), 3 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:55,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:55,471 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1049.0) internal successors, (4196), 4 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:55,471 INFO L175 Difference]: Start difference. First operand has 927 places, 936 transitions, 1885 flow. Second operand 3 states and 3009 transitions. [2022-11-18 20:23:55,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 928 places, 935 transitions, 1929 flow [2022-11-18 20:23:55,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 926 places, 935 transitions, 1925 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:23:55,490 INFO L231 Difference]: Finished difference. Result has 926 places, 935 transitions, 1883 flow [2022-11-18 20:23:55,491 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1049, PETRI_DIFFERENCE_MINUEND_FLOW=1879, PETRI_DIFFERENCE_MINUEND_PLACES=924, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=935, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1883, PETRI_PLACES=926, PETRI_TRANSITIONS=935} [2022-11-18 20:23:55,492 INFO L288 CegarLoopForPetriNet]: 986 programPoint places, -60 predicate places. [2022-11-18 20:23:55,492 INFO L495 AbstractCegarLoop]: Abstraction has has 926 places, 935 transitions, 1883 flow [2022-11-18 20:23:55,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 996.3333333333334) internal successors, (2989), 3 states have internal predecessors, (2989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:55,493 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:23:55,493 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:55,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:23:55,494 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2022-11-18 20:23:55,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:55,494 INFO L85 PathProgramCache]: Analyzing trace with hash -960506503, now seen corresponding path program 1 times [2022-11-18 20:23:55,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:23:55,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219950423] [2022-11-18 20:23:55,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:55,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:23:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:56,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:23:56,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219950423] [2022-11-18 20:23:56,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219950423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:56,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:56,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:23:56,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102485745] [2022-11-18 20:23:56,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:56,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:56,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:23:56,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:56,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:56,316 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 845 out of 1049 [2022-11-18 20:23:56,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 926 places, 935 transitions, 1883 flow. Second operand has 6 states, 6 states have (on average 846.8333333333334) internal successors, (5081), 6 states have internal predecessors, (5081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:56,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:23:56,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 845 of 1049 [2022-11-18 20:23:56,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand