./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/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_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/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_0f548155-b16a-4b2f-95f0-ccf51d6e0191/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 79419a4ba87d66b20bd1eac3a57771b6df78d8c052d6832c2c2f61b321d58321 --- 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 18:50:07,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:50:07,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:50:07,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:50:07,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:50:07,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:50:07,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:50:07,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:50:07,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:50:07,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:50:07,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:50:07,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:50:07,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:50:07,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:50:07,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:50:07,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:50:07,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:50:07,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:50:07,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:50:07,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:50:07,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:50:07,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:50:07,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:50:07,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:50:07,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:50:07,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:50:07,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:50:07,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:50:07,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:50:07,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:50:07,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:50:07,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:50:07,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:50:07,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:50:07,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:50:07,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:50:07,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:50:07,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:50:07,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:50:07,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:50:07,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:50:07,539 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:50:07,587 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:50:07,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:50:07,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:50:07,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:50:07,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:50:07,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:50:07,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:50:07,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:50:07,591 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:50:07,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:50:07,592 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:50:07,592 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:50:07,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:50:07,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:50:07,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:50:07,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:50:07,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:50:07,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:50:07,594 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:50:07,594 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:50:07,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:50:07,595 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:50:07,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:50:07,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:50:07,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:50:07,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:50:07,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:50:07,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:50:07,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:50:07,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:50:07,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:50:07,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:50:07,599 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:50:07,599 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:50:07,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:50:07,600 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_0f548155-b16a-4b2f-95f0-ccf51d6e0191/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79419a4ba87d66b20bd1eac3a57771b6df78d8c052d6832c2c2f61b321d58321 [2022-11-18 18:50:07,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:50:08,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:50:08,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:50:08,007 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:50:08,008 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:50:08,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c [2022-11-18 18:50:08,079 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro/data/db027e647/c7f75c68910941cd818bc7bdc05a8930/FLAG66fb4ecf0 [2022-11-18 18:50:08,626 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:50:08,626 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c [2022-11-18 18:50:08,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro/data/db027e647/c7f75c68910941cd818bc7bdc05a8930/FLAG66fb4ecf0 [2022-11-18 18:50:08,964 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro/data/db027e647/c7f75c68910941cd818bc7bdc05a8930 [2022-11-18 18:50:08,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:50:08,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:50:08,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:50:08,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:50:08,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:50:08,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:50:08" (1/1) ... [2022-11-18 18:50:08,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7416d76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:08, skipping insertion in model container [2022-11-18 18:50:08,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:50:08" (1/1) ... [2022-11-18 18:50:08,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:50:09,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:50:09,261 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_0f548155-b16a-4b2f-95f0-ccf51d6e0191/sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c[2628,2641] [2022-11-18 18:50:09,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:50:09,273 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:50:09,302 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_0f548155-b16a-4b2f-95f0-ccf51d6e0191/sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c[2628,2641] [2022-11-18 18:50:09,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:50:09,320 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:50:09,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:09 WrapperNode [2022-11-18 18:50:09,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:50:09,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:50:09,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:50:09,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:50:09,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:09" (1/1) ... [2022-11-18 18:50:09,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:09" (1/1) ... [2022-11-18 18:50:09,366 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 250 [2022-11-18 18:50:09,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:50:09,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:50:09,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:50:09,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:50:09,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:09" (1/1) ... [2022-11-18 18:50:09,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:09" (1/1) ... [2022-11-18 18:50:09,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:09" (1/1) ... [2022-11-18 18:50:09,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:09" (1/1) ... [2022-11-18 18:50:09,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:09" (1/1) ... [2022-11-18 18:50:09,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:09" (1/1) ... [2022-11-18 18:50:09,396 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:09" (1/1) ... [2022-11-18 18:50:09,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:09" (1/1) ... [2022-11-18 18:50:09,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:50:09,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:50:09,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:50:09,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:50:09,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:09" (1/1) ... [2022-11-18 18:50:09,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:50:09,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:50:09,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:50:09,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:50:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:50:09,506 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 18:50:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 18:50:09,506 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 18:50:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 18:50:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:50:09,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:50:09,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:50:09,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:50:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:50:09,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:50:09,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:50:09,511 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 18:50:09,686 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:50:09,689 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:50:10,321 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:50:10,334 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:50:10,340 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:50:10,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:50:10 BoogieIcfgContainer [2022-11-18 18:50:10,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:50:10,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:50:10,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:50:10,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:50:10,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:50:08" (1/3) ... [2022-11-18 18:50:10,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1584983e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:50:10, skipping insertion in model container [2022-11-18 18:50:10,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:50:09" (2/3) ... [2022-11-18 18:50:10,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1584983e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:50:10, skipping insertion in model container [2022-11-18 18:50:10,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:50:10" (3/3) ... [2022-11-18 18:50:10,358 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2022-11-18 18:50:10,370 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:50:10,383 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:50:10,384 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-11-18 18:50:10,384 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:50:10,561 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 18:50:10,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 338 transitions, 692 flow [2022-11-18 18:50:10,922 INFO L130 PetriNetUnfolder]: 22/336 cut-off events. [2022-11-18 18:50:10,922 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 18:50:10,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 336 events. 22/336 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 847 event pairs, 0 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2022-11-18 18:50:10,932 INFO L82 GeneralOperation]: Start removeDead. Operand has 323 places, 338 transitions, 692 flow [2022-11-18 18:50:10,961 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 302 places, 315 transitions, 642 flow [2022-11-18 18:50:11,008 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:50:11,016 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;@106247e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:50:11,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2022-11-18 18:50:11,022 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-18 18:50:11,031 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:50:11,032 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:11,033 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] [2022-11-18 18:50:11,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:11,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:11,040 INFO L85 PathProgramCache]: Analyzing trace with hash -2089419042, now seen corresponding path program 1 times [2022-11-18 18:50:11,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:11,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546453425] [2022-11-18 18:50:11,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:11,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:11,315 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 18:50:11,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:11,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546453425] [2022-11-18 18:50:11,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546453425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:11,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:11,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:11,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691170416] [2022-11-18 18:50:11,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:11,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:11,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:11,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:11,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:11,387 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 338 [2022-11-18 18:50:11,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 315 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 18:50:11,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:11,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 338 [2022-11-18 18:50:11,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:11,782 INFO L130 PetriNetUnfolder]: 118/1121 cut-off events. [2022-11-18 18:50:11,782 INFO L131 PetriNetUnfolder]: For 56/57 co-relation queries the response was YES. [2022-11-18 18:50:11,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 1121 events. 118/1121 cut-off events. For 56/57 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7513 event pairs, 48 based on Foata normal form. 26/937 useless extension candidates. Maximal degree in co-relation 1053. Up to 136 conditions per place. [2022-11-18 18:50:11,800 INFO L137 encePairwiseOnDemand]: 329/338 looper letters, 19 selfloop transitions, 2 changer transitions 2/308 dead transitions. [2022-11-18 18:50:11,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 308 transitions, 670 flow [2022-11-18 18:50:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:11,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:11,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 952 transitions. [2022-11-18 18:50:11,818 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9388560157790927 [2022-11-18 18:50:11,819 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 952 transitions. [2022-11-18 18:50:11,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 952 transitions. [2022-11-18 18:50:11,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:11,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 952 transitions. [2022-11-18 18:50:11,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.3333333333333) internal successors, (952), 3 states have internal predecessors, (952), 0 states have call successors, (0), 0 states 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 18:50:11,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:11,847 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:11,849 INFO L175 Difference]: Start difference. First operand has 302 places, 315 transitions, 642 flow. Second operand 3 states and 952 transitions. [2022-11-18 18:50:11,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 308 transitions, 670 flow [2022-11-18 18:50:11,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 308 transitions, 662 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:50:11,867 INFO L231 Difference]: Finished difference. Result has 299 places, 306 transitions, 620 flow [2022-11-18 18:50:11,870 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=299, PETRI_TRANSITIONS=306} [2022-11-18 18:50:11,875 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -3 predicate places. [2022-11-18 18:50:11,875 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 306 transitions, 620 flow [2022-11-18 18:50:11,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 18:50:11,876 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:11,876 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] [2022-11-18 18:50:11,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:50:11,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:11,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:11,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1800948164, now seen corresponding path program 1 times [2022-11-18 18:50:11,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:11,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742615829] [2022-11-18 18:50:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:11,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:11,994 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 18:50:11,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:11,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742615829] [2022-11-18 18:50:11,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742615829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:11,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:11,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:11,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938088867] [2022-11-18 18:50:12,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:12,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:12,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:12,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:12,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:12,006 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 338 [2022-11-18 18:50:12,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 306 transitions, 620 flow. Second operand has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 18:50:12,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:12,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 338 [2022-11-18 18:50:12,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:12,301 INFO L130 PetriNetUnfolder]: 118/1124 cut-off events. [2022-11-18 18:50:12,302 INFO L131 PetriNetUnfolder]: For 16/17 co-relation queries the response was YES. [2022-11-18 18:50:12,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1274 conditions, 1124 events. 118/1124 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7542 event pairs, 48 based on Foata normal form. 0/910 useless extension candidates. Maximal degree in co-relation 1241. Up to 136 conditions per place. [2022-11-18 18:50:12,319 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 19 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2022-11-18 18:50:12,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 305 transitions, 660 flow [2022-11-18 18:50:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:12,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 946 transitions. [2022-11-18 18:50:12,325 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9329388560157791 [2022-11-18 18:50:12,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 946 transitions. [2022-11-18 18:50:12,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 946 transitions. [2022-11-18 18:50:12,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:12,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 946 transitions. [2022-11-18 18:50:12,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:12,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:12,334 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:12,334 INFO L175 Difference]: Start difference. First operand has 299 places, 306 transitions, 620 flow. Second operand 3 states and 946 transitions. [2022-11-18 18:50:12,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 305 transitions, 660 flow [2022-11-18 18:50:12,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 305 transitions, 656 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:12,347 INFO L231 Difference]: Finished difference. Result has 296 places, 305 transitions, 618 flow [2022-11-18 18:50:12,348 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=296, PETRI_TRANSITIONS=305} [2022-11-18 18:50:12,350 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -6 predicate places. [2022-11-18 18:50:12,350 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 305 transitions, 618 flow [2022-11-18 18:50:12,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states 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 18:50:12,352 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:12,352 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 18:50:12,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:50:12,353 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:12,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:12,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1815490768, now seen corresponding path program 1 times [2022-11-18 18:50:12,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:12,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917968743] [2022-11-18 18:50:12,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:12,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:12,484 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 18:50:12,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:12,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917968743] [2022-11-18 18:50:12,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917968743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:12,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:12,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:12,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108563523] [2022-11-18 18:50:12,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:12,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:12,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:12,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:12,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:12,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 338 [2022-11-18 18:50:12,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 305 transitions, 618 flow. Second operand has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states 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 18:50:12,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:12,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 338 [2022-11-18 18:50:12,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:12,813 INFO L130 PetriNetUnfolder]: 185/1488 cut-off events. [2022-11-18 18:50:12,813 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-18 18:50:12,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1729 conditions, 1488 events. 185/1488 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 11220 event pairs, 99 based on Foata normal form. 0/1179 useless extension candidates. Maximal degree in co-relation 1689. Up to 224 conditions per place. [2022-11-18 18:50:12,829 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 25 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2022-11-18 18:50:12,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 304 transitions, 670 flow [2022-11-18 18:50:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:12,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:12,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 934 transitions. [2022-11-18 18:50:12,835 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9211045364891519 [2022-11-18 18:50:12,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 934 transitions. [2022-11-18 18:50:12,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 934 transitions. [2022-11-18 18:50:12,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:12,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 934 transitions. [2022-11-18 18:50:12,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states 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 18:50:12,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:12,845 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:12,845 INFO L175 Difference]: Start difference. First operand has 296 places, 305 transitions, 618 flow. Second operand 3 states and 934 transitions. [2022-11-18 18:50:12,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 304 transitions, 670 flow [2022-11-18 18:50:12,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 304 transitions, 666 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:12,852 INFO L231 Difference]: Finished difference. Result has 295 places, 304 transitions, 616 flow [2022-11-18 18:50:12,853 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=616, PETRI_PLACES=295, PETRI_TRANSITIONS=304} [2022-11-18 18:50:12,856 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -7 predicate places. [2022-11-18 18:50:12,856 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 304 transitions, 616 flow [2022-11-18 18:50:12,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states 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 18:50:12,857 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:12,857 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] [2022-11-18 18:50:12,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:50:12,864 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:12,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:12,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1251978584, now seen corresponding path program 1 times [2022-11-18 18:50:12,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:12,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236121465] [2022-11-18 18:50:12,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:12,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:12,933 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 18:50:12,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:12,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236121465] [2022-11-18 18:50:12,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236121465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:12,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:12,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:12,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229475445] [2022-11-18 18:50:12,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:12,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:12,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:12,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:12,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:12,938 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 338 [2022-11-18 18:50:12,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 304 transitions, 616 flow. Second operand has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states 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 18:50:12,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:12,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 338 [2022-11-18 18:50:12,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:13,277 INFO L130 PetriNetUnfolder]: 217/1780 cut-off events. [2022-11-18 18:50:13,278 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-18 18:50:13,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2043 conditions, 1780 events. 217/1780 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 14300 event pairs, 99 based on Foata normal form. 0/1412 useless extension candidates. Maximal degree in co-relation 1997. Up to 246 conditions per place. [2022-11-18 18:50:13,297 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 25 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2022-11-18 18:50:13,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 303 transitions, 668 flow [2022-11-18 18:50:13,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:13,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:13,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 934 transitions. [2022-11-18 18:50:13,300 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9211045364891519 [2022-11-18 18:50:13,301 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 934 transitions. [2022-11-18 18:50:13,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 934 transitions. [2022-11-18 18:50:13,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:13,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 934 transitions. [2022-11-18 18:50:13,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states 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 18:50:13,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:13,313 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:13,313 INFO L175 Difference]: Start difference. First operand has 295 places, 304 transitions, 616 flow. Second operand 3 states and 934 transitions. [2022-11-18 18:50:13,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 303 transitions, 668 flow [2022-11-18 18:50:13,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 303 transitions, 664 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:13,325 INFO L231 Difference]: Finished difference. Result has 294 places, 303 transitions, 614 flow [2022-11-18 18:50:13,326 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=614, PETRI_PLACES=294, PETRI_TRANSITIONS=303} [2022-11-18 18:50:13,328 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -8 predicate places. [2022-11-18 18:50:13,328 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 303 transitions, 614 flow [2022-11-18 18:50:13,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states 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 18:50:13,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:13,332 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] [2022-11-18 18:50:13,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:50:13,333 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:13,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:13,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1569442444, now seen corresponding path program 1 times [2022-11-18 18:50:13,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:13,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907657554] [2022-11-18 18:50:13,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:13,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:13,449 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 18:50:13,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:13,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907657554] [2022-11-18 18:50:13,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907657554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:13,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:13,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:13,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415794111] [2022-11-18 18:50:13,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:13,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:13,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:13,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:13,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:13,453 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 338 [2022-11-18 18:50:13,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 303 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states 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 18:50:13,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:13,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 338 [2022-11-18 18:50:13,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:13,642 INFO L130 PetriNetUnfolder]: 116/1148 cut-off events. [2022-11-18 18:50:13,642 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-18 18:50:13,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1275 conditions, 1148 events. 116/1148 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 7783 event pairs, 41 based on Foata normal form. 0/958 useless extension candidates. Maximal degree in co-relation 1222. Up to 110 conditions per place. [2022-11-18 18:50:13,652 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 19 selfloop transitions, 2 changer transitions 0/300 dead transitions. [2022-11-18 18:50:13,653 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 300 transitions, 651 flow [2022-11-18 18:50:13,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 942 transitions. [2022-11-18 18:50:13,656 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9289940828402367 [2022-11-18 18:50:13,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 942 transitions. [2022-11-18 18:50:13,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 942 transitions. [2022-11-18 18:50:13,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:13,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 942 transitions. [2022-11-18 18:50:13,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 314.0) internal successors, (942), 3 states have internal predecessors, (942), 0 states have call successors, (0), 0 states 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 18:50:13,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:13,664 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:13,665 INFO L175 Difference]: Start difference. First operand has 294 places, 303 transitions, 614 flow. Second operand 3 states and 942 transitions. [2022-11-18 18:50:13,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 300 transitions, 651 flow [2022-11-18 18:50:13,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 300 transitions, 647 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:13,673 INFO L231 Difference]: Finished difference. Result has 289 places, 299 transitions, 612 flow [2022-11-18 18:50:13,673 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=612, PETRI_PLACES=289, PETRI_TRANSITIONS=299} [2022-11-18 18:50:13,674 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -13 predicate places. [2022-11-18 18:50:13,674 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 299 transitions, 612 flow [2022-11-18 18:50:13,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states 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 18:50:13,676 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:13,676 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:13,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:50:13,676 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:13,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:13,677 INFO L85 PathProgramCache]: Analyzing trace with hash -700642282, now seen corresponding path program 1 times [2022-11-18 18:50:13,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:13,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070004728] [2022-11-18 18:50:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:13,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:13,745 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 18:50:13,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:13,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070004728] [2022-11-18 18:50:13,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070004728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:13,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:13,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:13,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901007868] [2022-11-18 18:50:13,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:13,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:13,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:13,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:13,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:13,749 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 338 [2022-11-18 18:50:13,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 299 transitions, 612 flow. Second operand has 3 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states 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 18:50:13,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:13,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 338 [2022-11-18 18:50:13,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:14,031 INFO L130 PetriNetUnfolder]: 145/1407 cut-off events. [2022-11-18 18:50:14,031 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 18:50:14,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1561 conditions, 1407 events. 145/1407 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 10469 event pairs, 36 based on Foata normal form. 0/1194 useless extension candidates. Maximal degree in co-relation 1408. Up to 128 conditions per place. [2022-11-18 18:50:14,051 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 19 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2022-11-18 18:50:14,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 296 transitions, 649 flow [2022-11-18 18:50:14,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:14,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:14,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 942 transitions. [2022-11-18 18:50:14,055 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9289940828402367 [2022-11-18 18:50:14,056 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 942 transitions. [2022-11-18 18:50:14,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 942 transitions. [2022-11-18 18:50:14,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:14,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 942 transitions. [2022-11-18 18:50:14,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 314.0) internal successors, (942), 3 states have internal predecessors, (942), 0 states have call successors, (0), 0 states 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 18:50:14,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:14,088 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:14,089 INFO L175 Difference]: Start difference. First operand has 289 places, 299 transitions, 612 flow. Second operand 3 states and 942 transitions. [2022-11-18 18:50:14,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 296 transitions, 649 flow [2022-11-18 18:50:14,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 296 transitions, 649 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:50:14,097 INFO L231 Difference]: Finished difference. Result has 286 places, 295 transitions, 614 flow [2022-11-18 18:50:14,098 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=614, PETRI_PLACES=286, PETRI_TRANSITIONS=295} [2022-11-18 18:50:14,099 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -16 predicate places. [2022-11-18 18:50:14,099 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 295 transitions, 614 flow [2022-11-18 18:50:14,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states 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 18:50:14,100 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:14,100 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] [2022-11-18 18:50:14,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:50:14,101 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:14,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:14,102 INFO L85 PathProgramCache]: Analyzing trace with hash 523500009, now seen corresponding path program 1 times [2022-11-18 18:50:14,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:14,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615195282] [2022-11-18 18:50:14,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:14,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:14,232 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 18:50:14,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:14,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615195282] [2022-11-18 18:50:14,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615195282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:14,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:14,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:50:14,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372974258] [2022-11-18 18:50:14,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:14,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:14,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:14,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:14,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:14,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 338 [2022-11-18 18:50:14,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 295 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 0 states have call successors, (0), 0 states 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 18:50:14,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:14,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 338 [2022-11-18 18:50:14,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:14,369 INFO L130 PetriNetUnfolder]: 41/573 cut-off events. [2022-11-18 18:50:14,369 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 18:50:14,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 573 events. 41/573 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2929 event pairs, 5 based on Foata normal form. 0/497 useless extension candidates. Maximal degree in co-relation 480. Up to 22 conditions per place. [2022-11-18 18:50:14,376 INFO L137 encePairwiseOnDemand]: 334/338 looper letters, 11 selfloop transitions, 3 changer transitions 0/298 dead transitions. [2022-11-18 18:50:14,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 298 transitions, 649 flow [2022-11-18 18:50:14,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:14,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:14,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 972 transitions. [2022-11-18 18:50:14,380 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9585798816568047 [2022-11-18 18:50:14,380 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 972 transitions. [2022-11-18 18:50:14,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 972 transitions. [2022-11-18 18:50:14,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:14,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 972 transitions. [2022-11-18 18:50:14,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 324.0) internal successors, (972), 3 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:14,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:14,387 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:14,388 INFO L175 Difference]: Start difference. First operand has 286 places, 295 transitions, 614 flow. Second operand 3 states and 972 transitions. [2022-11-18 18:50:14,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 298 transitions, 649 flow [2022-11-18 18:50:14,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 298 transitions, 649 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:50:14,394 INFO L231 Difference]: Finished difference. Result has 290 places, 297 transitions, 636 flow [2022-11-18 18:50:14,395 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=636, PETRI_PLACES=290, PETRI_TRANSITIONS=297} [2022-11-18 18:50:14,396 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -12 predicate places. [2022-11-18 18:50:14,397 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 297 transitions, 636 flow [2022-11-18 18:50:14,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 0 states have call successors, (0), 0 states 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 18:50:14,398 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:14,398 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:14,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:50:14,398 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:14,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:14,399 INFO L85 PathProgramCache]: Analyzing trace with hash -2062397871, now seen corresponding path program 1 times [2022-11-18 18:50:14,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:14,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981431397] [2022-11-18 18:50:14,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:14,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:14,884 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 18:50:14,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:14,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981431397] [2022-11-18 18:50:14,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981431397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:14,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:14,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:50:14,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713152596] [2022-11-18 18:50:14,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:14,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:50:14,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:14,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:50:14,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:50:14,890 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 338 [2022-11-18 18:50:14,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 297 transitions, 636 flow. Second operand has 6 states, 6 states have (on average 309.8333333333333) internal successors, (1859), 6 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 18:50:14,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:14,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 338 [2022-11-18 18:50:14,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:15,021 INFO L130 PetriNetUnfolder]: 28/473 cut-off events. [2022-11-18 18:50:15,021 INFO L131 PetriNetUnfolder]: For 4/11 co-relation queries the response was YES. [2022-11-18 18:50:15,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 473 events. 28/473 cut-off events. For 4/11 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2028 event pairs, 0 based on Foata normal form. 4/418 useless extension candidates. Maximal degree in co-relation 388. Up to 10 conditions per place. [2022-11-18 18:50:15,028 INFO L137 encePairwiseOnDemand]: 333/338 looper letters, 15 selfloop transitions, 4 changer transitions 0/296 dead transitions. [2022-11-18 18:50:15,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 296 transitions, 672 flow [2022-11-18 18:50:15,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:50:15,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:50:15,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1868 transitions. [2022-11-18 18:50:15,033 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9211045364891519 [2022-11-18 18:50:15,033 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1868 transitions. [2022-11-18 18:50:15,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1868 transitions. [2022-11-18 18:50:15,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:15,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1868 transitions. [2022-11-18 18:50:15,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 311.3333333333333) internal successors, (1868), 6 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states 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 18:50:15,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states 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 18:50:15,045 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states 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 18:50:15,045 INFO L175 Difference]: Start difference. First operand has 290 places, 297 transitions, 636 flow. Second operand 6 states and 1868 transitions. [2022-11-18 18:50:15,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 296 transitions, 672 flow [2022-11-18 18:50:15,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 296 transitions, 666 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:15,052 INFO L231 Difference]: Finished difference. Result has 292 places, 296 transitions, 636 flow [2022-11-18 18:50:15,053 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=636, PETRI_PLACES=292, PETRI_TRANSITIONS=296} [2022-11-18 18:50:15,054 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -10 predicate places. [2022-11-18 18:50:15,054 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 296 transitions, 636 flow [2022-11-18 18:50:15,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 309.8333333333333) internal successors, (1859), 6 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 18:50:15,055 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:15,055 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:15,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:50:15,056 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:15,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:15,056 INFO L85 PathProgramCache]: Analyzing trace with hash -281037461, now seen corresponding path program 1 times [2022-11-18 18:50:15,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:15,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780045217] [2022-11-18 18:50:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:15,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:15,117 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 18:50:15,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:15,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780045217] [2022-11-18 18:50:15,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780045217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:15,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:15,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:50:15,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614772487] [2022-11-18 18:50:15,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:15,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:50:15,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:15,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:50:15,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:50:15,122 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 338 [2022-11-18 18:50:15,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 296 transitions, 636 flow. Second operand has 4 states, 4 states have (on average 316.25) internal successors, (1265), 4 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states 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 18:50:15,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:15,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 338 [2022-11-18 18:50:15,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:15,331 INFO L130 PetriNetUnfolder]: 77/1013 cut-off events. [2022-11-18 18:50:15,331 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 18:50:15,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1157 conditions, 1013 events. 77/1013 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 6774 event pairs, 11 based on Foata normal form. 0/876 useless extension candidates. Maximal degree in co-relation 1070. Up to 43 conditions per place. [2022-11-18 18:50:15,349 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 20 selfloop transitions, 5 changer transitions 0/306 dead transitions. [2022-11-18 18:50:15,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 306 transitions, 709 flow [2022-11-18 18:50:15,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:50:15,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:50:15,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1601 transitions. [2022-11-18 18:50:15,353 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9473372781065089 [2022-11-18 18:50:15,354 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1601 transitions. [2022-11-18 18:50:15,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1601 transitions. [2022-11-18 18:50:15,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:15,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1601 transitions. [2022-11-18 18:50:15,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 320.2) internal successors, (1601), 5 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states 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 18:50:15,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states 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 18:50:15,363 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states 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 18:50:15,364 INFO L175 Difference]: Start difference. First operand has 292 places, 296 transitions, 636 flow. Second operand 5 states and 1601 transitions. [2022-11-18 18:50:15,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 306 transitions, 709 flow [2022-11-18 18:50:15,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 306 transitions, 702 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:50:15,372 INFO L231 Difference]: Finished difference. Result has 296 places, 300 transitions, 667 flow [2022-11-18 18:50:15,372 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=629, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=667, PETRI_PLACES=296, PETRI_TRANSITIONS=300} [2022-11-18 18:50:15,373 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -6 predicate places. [2022-11-18 18:50:15,374 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 300 transitions, 667 flow [2022-11-18 18:50:15,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 316.25) internal successors, (1265), 4 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states 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 18:50:15,374 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:15,375 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] [2022-11-18 18:50:15,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:50:15,375 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:15,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:15,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1962060703, now seen corresponding path program 1 times [2022-11-18 18:50:15,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:15,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141615118] [2022-11-18 18:50:15,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:15,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:15,423 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 18:50:15,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:15,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141615118] [2022-11-18 18:50:15,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141615118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:15,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:15,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:15,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087408362] [2022-11-18 18:50:15,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:15,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:15,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:15,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:15,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:15,432 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 338 [2022-11-18 18:50:15,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 300 transitions, 667 flow. Second operand has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states 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 18:50:15,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:15,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 338 [2022-11-18 18:50:15,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:15,786 INFO L130 PetriNetUnfolder]: 146/1739 cut-off events. [2022-11-18 18:50:15,786 INFO L131 PetriNetUnfolder]: For 19/20 co-relation queries the response was YES. [2022-11-18 18:50:15,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1984 conditions, 1739 events. 146/1739 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 13655 event pairs, 18 based on Foata normal form. 0/1520 useless extension candidates. Maximal degree in co-relation 1791. Up to 135 conditions per place. [2022-11-18 18:50:15,806 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 17 selfloop transitions, 4 changer transitions 0/303 dead transitions. [2022-11-18 18:50:15,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 303 transitions, 718 flow [2022-11-18 18:50:15,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:15,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:15,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 958 transitions. [2022-11-18 18:50:15,809 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9447731755424064 [2022-11-18 18:50:15,809 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 958 transitions. [2022-11-18 18:50:15,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 958 transitions. [2022-11-18 18:50:15,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:15,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 958 transitions. [2022-11-18 18:50:15,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:15,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:15,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:15,815 INFO L175 Difference]: Start difference. First operand has 296 places, 300 transitions, 667 flow. Second operand 3 states and 958 transitions. [2022-11-18 18:50:15,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 303 transitions, 718 flow [2022-11-18 18:50:15,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 303 transitions, 718 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:50:15,821 INFO L231 Difference]: Finished difference. Result has 295 places, 300 transitions, 687 flow [2022-11-18 18:50:15,822 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=687, PETRI_PLACES=295, PETRI_TRANSITIONS=300} [2022-11-18 18:50:15,822 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -7 predicate places. [2022-11-18 18:50:15,823 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 300 transitions, 687 flow [2022-11-18 18:50:15,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states 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 18:50:15,823 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:15,824 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] [2022-11-18 18:50:15,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:50:15,824 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:15,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:15,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1613149835, now seen corresponding path program 1 times [2022-11-18 18:50:15,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:15,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141403821] [2022-11-18 18:50:15,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:15,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:15,856 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 18:50:15,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:15,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141403821] [2022-11-18 18:50:15,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141403821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:15,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:15,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:15,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520350551] [2022-11-18 18:50:15,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:15,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:15,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:15,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:15,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:15,860 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 338 [2022-11-18 18:50:15,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 300 transitions, 687 flow. Second operand has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states 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 18:50:15,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:15,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 338 [2022-11-18 18:50:15,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:16,215 INFO L130 PetriNetUnfolder]: 164/1962 cut-off events. [2022-11-18 18:50:16,215 INFO L131 PetriNetUnfolder]: For 13/17 co-relation queries the response was YES. [2022-11-18 18:50:16,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2299 conditions, 1962 events. 164/1962 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 15934 event pairs, 11 based on Foata normal form. 1/1730 useless extension candidates. Maximal degree in co-relation 2107. Up to 59 conditions per place. [2022-11-18 18:50:16,235 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 16 selfloop transitions, 2 changer transitions 0/300 dead transitions. [2022-11-18 18:50:16,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 300 transitions, 724 flow [2022-11-18 18:50:16,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:16,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:16,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 955 transitions. [2022-11-18 18:50:16,238 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9418145956607495 [2022-11-18 18:50:16,238 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 955 transitions. [2022-11-18 18:50:16,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 955 transitions. [2022-11-18 18:50:16,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:16,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 955 transitions. [2022-11-18 18:50:16,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 318.3333333333333) internal successors, (955), 3 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:16,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:16,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:16,254 INFO L175 Difference]: Start difference. First operand has 295 places, 300 transitions, 687 flow. Second operand 3 states and 955 transitions. [2022-11-18 18:50:16,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 300 transitions, 724 flow [2022-11-18 18:50:16,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 300 transitions, 724 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:50:16,264 INFO L231 Difference]: Finished difference. Result has 296 places, 299 transitions, 689 flow [2022-11-18 18:50:16,265 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=685, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=689, PETRI_PLACES=296, PETRI_TRANSITIONS=299} [2022-11-18 18:50:16,266 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -6 predicate places. [2022-11-18 18:50:16,266 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 299 transitions, 689 flow [2022-11-18 18:50:16,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states 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 18:50:16,267 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:16,267 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:16,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:50:16,267 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:16,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:16,268 INFO L85 PathProgramCache]: Analyzing trace with hash -49665371, now seen corresponding path program 1 times [2022-11-18 18:50:16,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:16,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48016744] [2022-11-18 18:50:16,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:16,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:16,311 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 18:50:16,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:16,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48016744] [2022-11-18 18:50:16,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48016744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:16,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:16,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:16,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467569072] [2022-11-18 18:50:16,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:16,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:16,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:16,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:16,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:16,316 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 338 [2022-11-18 18:50:16,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 299 transitions, 689 flow. Second operand has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states 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 18:50:16,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:16,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 338 [2022-11-18 18:50:16,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:16,658 INFO L130 PetriNetUnfolder]: 181/1950 cut-off events. [2022-11-18 18:50:16,659 INFO L131 PetriNetUnfolder]: For 23/24 co-relation queries the response was YES. [2022-11-18 18:50:16,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2307 conditions, 1950 events. 181/1950 cut-off events. For 23/24 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 16029 event pairs, 20 based on Foata normal form. 0/1756 useless extension candidates. Maximal degree in co-relation 2109. Up to 158 conditions per place. [2022-11-18 18:50:16,682 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 17 selfloop transitions, 4 changer transitions 0/302 dead transitions. [2022-11-18 18:50:16,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 302 transitions, 740 flow [2022-11-18 18:50:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:16,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:16,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 958 transitions. [2022-11-18 18:50:16,686 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9447731755424064 [2022-11-18 18:50:16,686 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 958 transitions. [2022-11-18 18:50:16,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 958 transitions. [2022-11-18 18:50:16,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:16,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 958 transitions. [2022-11-18 18:50:16,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:16,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:16,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:16,692 INFO L175 Difference]: Start difference. First operand has 296 places, 299 transitions, 689 flow. Second operand 3 states and 958 transitions. [2022-11-18 18:50:16,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 302 transitions, 740 flow [2022-11-18 18:50:16,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 302 transitions, 736 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:16,699 INFO L231 Difference]: Finished difference. Result has 293 places, 299 transitions, 705 flow [2022-11-18 18:50:16,700 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=705, PETRI_PLACES=293, PETRI_TRANSITIONS=299} [2022-11-18 18:50:16,700 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -9 predicate places. [2022-11-18 18:50:16,700 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 299 transitions, 705 flow [2022-11-18 18:50:16,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states 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 18:50:16,701 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:16,701 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 18:50:16,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 18:50:16,702 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:16,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:16,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1442279624, now seen corresponding path program 1 times [2022-11-18 18:50:16,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:16,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881504765] [2022-11-18 18:50:16,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:16,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:16,740 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 18:50:16,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:16,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881504765] [2022-11-18 18:50:16,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881504765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:16,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:16,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:50:16,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104397879] [2022-11-18 18:50:16,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:16,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:16,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:16,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:16,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:16,747 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 338 [2022-11-18 18:50:16,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 299 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 320.6666666666667) internal successors, (962), 3 states have internal predecessors, (962), 0 states have call successors, (0), 0 states 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 18:50:16,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:16,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 338 [2022-11-18 18:50:16,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:17,030 INFO L130 PetriNetUnfolder]: 135/1599 cut-off events. [2022-11-18 18:50:17,030 INFO L131 PetriNetUnfolder]: For 31/33 co-relation queries the response was YES. [2022-11-18 18:50:17,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1918 conditions, 1599 events. 135/1599 cut-off events. For 31/33 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 12179 event pairs, 10 based on Foata normal form. 0/1422 useless extension candidates. Maximal degree in co-relation 1839. Up to 97 conditions per place. [2022-11-18 18:50:17,054 INFO L137 encePairwiseOnDemand]: 334/338 looper letters, 11 selfloop transitions, 3 changer transitions 0/302 dead transitions. [2022-11-18 18:50:17,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 302 transitions, 740 flow [2022-11-18 18:50:17,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:17,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:17,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 972 transitions. [2022-11-18 18:50:17,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9585798816568047 [2022-11-18 18:50:17,057 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 972 transitions. [2022-11-18 18:50:17,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 972 transitions. [2022-11-18 18:50:17,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:17,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 972 transitions. [2022-11-18 18:50:17,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 324.0) internal successors, (972), 3 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:17,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:17,065 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:17,065 INFO L175 Difference]: Start difference. First operand has 293 places, 299 transitions, 705 flow. Second operand 3 states and 972 transitions. [2022-11-18 18:50:17,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 302 transitions, 740 flow [2022-11-18 18:50:17,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 302 transitions, 740 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:50:17,073 INFO L231 Difference]: Finished difference. Result has 297 places, 301 transitions, 727 flow [2022-11-18 18:50:17,074 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=727, PETRI_PLACES=297, PETRI_TRANSITIONS=301} [2022-11-18 18:50:17,076 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -5 predicate places. [2022-11-18 18:50:17,076 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 301 transitions, 727 flow [2022-11-18 18:50:17,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 320.6666666666667) internal successors, (962), 3 states have internal predecessors, (962), 0 states have call successors, (0), 0 states 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 18:50:17,077 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:17,077 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 18:50:17,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:50:17,078 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:17,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:17,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1214568596, now seen corresponding path program 1 times [2022-11-18 18:50:17,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:17,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964564775] [2022-11-18 18:50:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:17,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:17,116 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 18:50:17,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:17,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964564775] [2022-11-18 18:50:17,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964564775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:17,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:17,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:17,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903920159] [2022-11-18 18:50:17,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:17,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:17,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:17,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:17,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:17,121 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 338 [2022-11-18 18:50:17,122 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 301 transitions, 727 flow. Second operand has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:17,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:17,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 338 [2022-11-18 18:50:17,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:17,444 INFO L130 PetriNetUnfolder]: 135/1485 cut-off events. [2022-11-18 18:50:17,445 INFO L131 PetriNetUnfolder]: For 70/72 co-relation queries the response was YES. [2022-11-18 18:50:17,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1931 conditions, 1485 events. 135/1485 cut-off events. For 70/72 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 11241 event pairs, 6 based on Foata normal form. 0/1365 useless extension candidates. Maximal degree in co-relation 1850. Up to 87 conditions per place. [2022-11-18 18:50:17,466 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 15 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2022-11-18 18:50:17,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 301 transitions, 762 flow [2022-11-18 18:50:17,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:17,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:17,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 954 transitions. [2022-11-18 18:50:17,470 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9408284023668639 [2022-11-18 18:50:17,470 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 954 transitions. [2022-11-18 18:50:17,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 954 transitions. [2022-11-18 18:50:17,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:17,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 954 transitions. [2022-11-18 18:50:17,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states 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 18:50:17,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:17,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:17,478 INFO L175 Difference]: Start difference. First operand has 297 places, 301 transitions, 727 flow. Second operand 3 states and 954 transitions. [2022-11-18 18:50:17,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 301 transitions, 762 flow [2022-11-18 18:50:17,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 301 transitions, 756 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:17,486 INFO L231 Difference]: Finished difference. Result has 296 places, 300 transitions, 723 flow [2022-11-18 18:50:17,487 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=723, PETRI_PLACES=296, PETRI_TRANSITIONS=300} [2022-11-18 18:50:17,487 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -6 predicate places. [2022-11-18 18:50:17,488 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 300 transitions, 723 flow [2022-11-18 18:50:17,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:17,488 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:17,489 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] [2022-11-18 18:50:17,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:50:17,489 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:17,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:17,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1550070499, now seen corresponding path program 1 times [2022-11-18 18:50:17,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:17,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931095131] [2022-11-18 18:50:17,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:17,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:17,922 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 18:50:17,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:17,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931095131] [2022-11-18 18:50:17,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931095131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:17,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:17,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:50:17,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112834570] [2022-11-18 18:50:17,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:17,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:50:17,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:17,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:50:17,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:50:17,927 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 338 [2022-11-18 18:50:17,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 300 transitions, 723 flow. Second operand has 6 states, 6 states have (on average 310.8333333333333) internal successors, (1865), 6 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:17,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:17,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 338 [2022-11-18 18:50:17,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:18,244 INFO L130 PetriNetUnfolder]: 103/1401 cut-off events. [2022-11-18 18:50:18,244 INFO L131 PetriNetUnfolder]: For 7/21 co-relation queries the response was YES. [2022-11-18 18:50:18,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 1401 events. 103/1401 cut-off events. For 7/21 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 10036 event pairs, 0 based on Foata normal form. 0/1284 useless extension candidates. Maximal degree in co-relation 1626. Up to 46 conditions per place. [2022-11-18 18:50:18,268 INFO L137 encePairwiseOnDemand]: 333/338 looper letters, 14 selfloop transitions, 4 changer transitions 0/299 dead transitions. [2022-11-18 18:50:18,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 299 transitions, 757 flow [2022-11-18 18:50:18,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:50:18,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:50:18,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1867 transitions. [2022-11-18 18:50:18,275 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9206114398422091 [2022-11-18 18:50:18,275 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1867 transitions. [2022-11-18 18:50:18,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1867 transitions. [2022-11-18 18:50:18,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:18,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1867 transitions. [2022-11-18 18:50:18,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 311.1666666666667) internal successors, (1867), 6 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states 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 18:50:18,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states 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 18:50:18,285 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states 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 18:50:18,286 INFO L175 Difference]: Start difference. First operand has 296 places, 300 transitions, 723 flow. Second operand 6 states and 1867 transitions. [2022-11-18 18:50:18,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 299 transitions, 757 flow [2022-11-18 18:50:18,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 299 transitions, 753 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:50:18,295 INFO L231 Difference]: Finished difference. Result has 298 places, 299 transitions, 725 flow [2022-11-18 18:50:18,297 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=725, PETRI_PLACES=298, PETRI_TRANSITIONS=299} [2022-11-18 18:50:18,297 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -4 predicate places. [2022-11-18 18:50:18,298 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 299 transitions, 725 flow [2022-11-18 18:50:18,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 310.8333333333333) internal successors, (1865), 6 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:18,299 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:18,299 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] [2022-11-18 18:50:18,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 18:50:18,300 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:18,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:18,300 INFO L85 PathProgramCache]: Analyzing trace with hash 456682773, now seen corresponding path program 1 times [2022-11-18 18:50:18,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:18,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768029320] [2022-11-18 18:50:18,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:18,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,406 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 18:50:18,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:18,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768029320] [2022-11-18 18:50:18,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768029320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:18,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:18,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:18,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289123561] [2022-11-18 18:50:18,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:18,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:18,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:18,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:18,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:18,414 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 338 [2022-11-18 18:50:18,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 299 transitions, 725 flow. Second operand has 3 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 18:50:18,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:18,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 338 [2022-11-18 18:50:18,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:18,793 INFO L130 PetriNetUnfolder]: 185/2341 cut-off events. [2022-11-18 18:50:18,793 INFO L131 PetriNetUnfolder]: For 13/15 co-relation queries the response was YES. [2022-11-18 18:50:18,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2857 conditions, 2341 events. 185/2341 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 20489 event pairs, 18 based on Foata normal form. 0/2160 useless extension candidates. Maximal degree in co-relation 2730. Up to 76 conditions per place. [2022-11-18 18:50:18,821 INFO L137 encePairwiseOnDemand]: 334/338 looper letters, 11 selfloop transitions, 1 changer transitions 0/296 dead transitions. [2022-11-18 18:50:18,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 296 transitions, 743 flow [2022-11-18 18:50:18,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:18,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:18,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 957 transitions. [2022-11-18 18:50:18,824 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9437869822485208 [2022-11-18 18:50:18,824 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 957 transitions. [2022-11-18 18:50:18,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 957 transitions. [2022-11-18 18:50:18,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:18,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 957 transitions. [2022-11-18 18:50:18,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:18,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:18,830 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:18,832 INFO L175 Difference]: Start difference. First operand has 298 places, 299 transitions, 725 flow. Second operand 3 states and 957 transitions. [2022-11-18 18:50:18,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 296 transitions, 743 flow [2022-11-18 18:50:18,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 296 transitions, 736 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:50:18,839 INFO L231 Difference]: Finished difference. Result has 293 places, 296 transitions, 714 flow [2022-11-18 18:50:18,840 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=714, PETRI_PLACES=293, PETRI_TRANSITIONS=296} [2022-11-18 18:50:18,840 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -9 predicate places. [2022-11-18 18:50:18,841 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 296 transitions, 714 flow [2022-11-18 18:50:18,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 18:50:18,841 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:50:18,842 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 18:50:18,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 18:50:18,842 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2022-11-18 18:50:18,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:50:18,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1790103067, now seen corresponding path program 1 times [2022-11-18 18:50:18,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:50:18,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102683531] [2022-11-18 18:50:18,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:50:18,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:50:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:50:18,925 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 18:50:18,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:50:18,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102683531] [2022-11-18 18:50:18,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102683531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:50:18,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:50:18,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:50:18,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427397881] [2022-11-18 18:50:18,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:50:18,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:50:18,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:50:18,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:50:18,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:50:18,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 338 [2022-11-18 18:50:18,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 296 transitions, 714 flow. Second operand has 3 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 18:50:18,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:50:18,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 338 [2022-11-18 18:50:18,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:50:19,273 INFO L130 PetriNetUnfolder]: 125/1503 cut-off events. [2022-11-18 18:50:19,274 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-18 18:50:19,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1860 conditions, 1503 events. 125/1503 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 11018 event pairs, 8 based on Foata normal form. 2/1386 useless extension candidates. Maximal degree in co-relation 1779. Up to 92 conditions per place. [2022-11-18 18:50:19,293 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 0 selfloop transitions, 0 changer transitions 295/295 dead transitions. [2022-11-18 18:50:19,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 295 transitions, 738 flow [2022-11-18 18:50:19,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:50:19,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:50:19,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 958 transitions. [2022-11-18 18:50:19,297 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9447731755424064 [2022-11-18 18:50:19,298 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 958 transitions. [2022-11-18 18:50:19,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 958 transitions. [2022-11-18 18:50:19,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:50:19,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 958 transitions. [2022-11-18 18:50:19,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:50:19,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:19,306 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states 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 18:50:19,306 INFO L175 Difference]: Start difference. First operand has 293 places, 296 transitions, 714 flow. Second operand 3 states and 958 transitions. [2022-11-18 18:50:19,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 295 transitions, 738 flow [2022-11-18 18:50:19,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 295 transitions, 737 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:50:19,313 INFO L231 Difference]: Finished difference. Result has 291 places, 0 transitions, 0 flow [2022-11-18 18:50:19,314 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=291, PETRI_TRANSITIONS=0} [2022-11-18 18:50:19,316 INFO L288 CegarLoopForPetriNet]: 302 programPoint places, -11 predicate places. [2022-11-18 18:50:19,316 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 0 transitions, 0 flow [2022-11-18 18:50:19,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 18:50:19,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (57 of 58 remaining) [2022-11-18 18:50:19,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2022-11-18 18:50:19,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2022-11-18 18:50:19,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2022-11-18 18:50:19,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2022-11-18 18:50:19,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2022-11-18 18:50:19,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2022-11-18 18:50:19,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2022-11-18 18:50:19,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2022-11-18 18:50:19,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2022-11-18 18:50:19,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2022-11-18 18:50:19,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2022-11-18 18:50:19,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2022-11-18 18:50:19,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2022-11-18 18:50:19,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2022-11-18 18:50:19,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2022-11-18 18:50:19,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2022-11-18 18:50:19,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2022-11-18 18:50:19,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2022-11-18 18:50:19,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2022-11-18 18:50:19,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2022-11-18 18:50:19,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2022-11-18 18:50:19,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2022-11-18 18:50:19,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2022-11-18 18:50:19,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2022-11-18 18:50:19,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2022-11-18 18:50:19,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2022-11-18 18:50:19,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2022-11-18 18:50:19,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2022-11-18 18:50:19,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2022-11-18 18:50:19,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2022-11-18 18:50:19,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2022-11-18 18:50:19,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2022-11-18 18:50:19,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2022-11-18 18:50:19,329 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 58 remaining) [2022-11-18 18:50:19,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 58 remaining) [2022-11-18 18:50:19,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2022-11-18 18:50:19,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2022-11-18 18:50:19,330 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2022-11-18 18:50:19,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2022-11-18 18:50:19,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2022-11-18 18:50:19,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2022-11-18 18:50:19,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2022-11-18 18:50:19,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2022-11-18 18:50:19,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2022-11-18 18:50:19,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2022-11-18 18:50:19,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2022-11-18 18:50:19,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2022-11-18 18:50:19,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2022-11-18 18:50:19,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2022-11-18 18:50:19,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2022-11-18 18:50:19,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2022-11-18 18:50:19,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2022-11-18 18:50:19,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2022-11-18 18:50:19,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2022-11-18 18:50:19,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2022-11-18 18:50:19,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2022-11-18 18:50:19,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2022-11-18 18:50:19,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 18:50:19,338 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:50:19,347 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 18:50:19,348 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:50:19,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:50:19 BasicIcfg [2022-11-18 18:50:19,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:50:19,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:50:19,358 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:50:19,358 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:50:19,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:50:10" (3/4) ... [2022-11-18 18:50:19,362 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 18:50:19,369 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 18:50:19,369 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 18:50:19,378 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-18 18:50:19,378 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 18:50:19,379 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 18:50:19,379 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 18:50:19,446 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:50:19,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:50:19,448 INFO L158 Benchmark]: Toolchain (without parser) took 10476.03ms. Allocated memory was 96.5MB in the beginning and 371.2MB in the end (delta: 274.7MB). Free memory was 65.5MB in the beginning and 279.3MB in the end (delta: -213.8MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. [2022-11-18 18:50:19,448 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:50:19,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.16ms. Allocated memory is still 96.5MB. Free memory was 65.3MB in the beginning and 71.2MB in the end (delta: -5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 18:50:19,449 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.67ms. Allocated memory is still 96.5MB. Free memory was 71.2MB in the beginning and 68.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:50:19,449 INFO L158 Benchmark]: Boogie Preprocessor took 33.52ms. Allocated memory is still 96.5MB. Free memory was 68.7MB in the beginning and 67.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:50:19,450 INFO L158 Benchmark]: RCFGBuilder took 944.65ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 67.0MB in the beginning and 92.4MB in the end (delta: -25.4MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-11-18 18:50:19,450 INFO L158 Benchmark]: TraceAbstraction took 9008.38ms. Allocated memory was 117.4MB in the beginning and 371.2MB in the end (delta: 253.8MB). Free memory was 91.5MB in the beginning and 283.5MB in the end (delta: -192.0MB). Peak memory consumption was 164.4MB. Max. memory is 16.1GB. [2022-11-18 18:50:19,451 INFO L158 Benchmark]: Witness Printer took 88.35ms. Allocated memory is still 371.2MB. Free memory was 283.5MB in the beginning and 279.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 18:50:19,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.16ms. Allocated memory is still 96.5MB. Free memory was 65.3MB in the beginning and 71.2MB in the end (delta: -5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.67ms. Allocated memory is still 96.5MB. Free memory was 71.2MB in the beginning and 68.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.52ms. Allocated memory is still 96.5MB. Free memory was 68.7MB in the beginning and 67.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 944.65ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 67.0MB in the beginning and 92.4MB in the end (delta: -25.4MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * TraceAbstraction took 9008.38ms. Allocated memory was 117.4MB in the beginning and 371.2MB in the end (delta: 253.8MB). Free memory was 91.5MB in the beginning and 283.5MB in the end (delta: -192.0MB). Peak memory consumption was 164.4MB. Max. memory is 16.1GB. * Witness Printer took 88.35ms. Allocated memory is still 371.2MB. Free memory was 283.5MB in the beginning and 279.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 495 locations, 58 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.7s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 198 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 375 IncrementalHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 188 mSDtfsCounter, 375 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=727occurred in iteration=13, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1131 NumberOfCodeBlocks, 1131 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1114 ConstructedInterpolants, 0 QuantifiedInterpolants, 1302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 34 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 18:50:19,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f548155-b16a-4b2f-95f0-ccf51d6e0191/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE