./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a --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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- 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-b5237d8 [2022-11-21 16:59:56,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:59:56,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:59:56,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:59:56,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:59:56,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:59:56,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:59:56,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:59:56,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:59:56,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:59:56,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:59:56,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:59:56,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:59:56,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:59:56,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:59:56,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:59:56,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:59:56,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:59:56,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:59:56,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:59:56,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:59:56,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:59:56,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:59:56,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:59:56,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:59:56,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:59:56,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:59:56,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:59:56,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:59:56,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:59:56,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:59:56,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:59:56,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:59:56,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:59:56,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:59:56,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:59:56,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:59:56,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:59:56,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:59:56,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:59:56,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:59:56,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:59:56,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:59:56,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:59:56,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:59:56,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:59:56,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:59:56,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:59:56,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:59:56,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:59:56,588 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:59:56,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:59:56,589 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:59:56,589 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:59:56,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:59:56,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:59:56,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:59:56,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:59:56,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:59:56,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:59:56,590 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:59:56,591 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:59:56,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:59:56,591 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:59:56,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:59:56,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:59:56,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:59:56,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:59:56,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:59:56,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:59:56,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:59:56,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:59:56,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:59:56,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:59:56,594 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:59:56,594 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:59:56,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:59:56,594 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_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2022-11-21 16:59:56,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:59:56,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:59:56,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:59:56,946 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:59:56,947 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:59:56,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2022-11-21 17:00:00,021 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:00:00,302 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:00:00,307 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2022-11-21 17:00:00,325 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a/data/ff4edb9ca/30fff4dfcc0140139a5c7ecc2eefdc46/FLAGf57928304 [2022-11-21 17:00:00,346 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a/data/ff4edb9ca/30fff4dfcc0140139a5c7ecc2eefdc46 [2022-11-21 17:00:00,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:00:00,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:00:00,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:00:00,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:00:00,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:00:00,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:00:00" (1/1) ... [2022-11-21 17:00:00,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da86700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:00, skipping insertion in model container [2022-11-21 17:00:00,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:00:00" (1/1) ... [2022-11-21 17:00:00,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:00:00,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:00:01,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:00:01,035 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:00:01,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:00:01,142 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:00:01,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:01 WrapperNode [2022-11-21 17:00:01,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:00:01,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:00:01,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:00:01,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:00:01,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:01" (1/1) ... [2022-11-21 17:00:01,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:01" (1/1) ... [2022-11-21 17:00:01,229 INFO L138 Inliner]: procedures = 263, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-11-21 17:00:01,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:00:01,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:00:01,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:00:01,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:00:01,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:01" (1/1) ... [2022-11-21 17:00:01,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:01" (1/1) ... [2022-11-21 17:00:01,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:01" (1/1) ... [2022-11-21 17:00:01,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:01" (1/1) ... [2022-11-21 17:00:01,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:01" (1/1) ... [2022-11-21 17:00:01,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:01" (1/1) ... [2022-11-21 17:00:01,301 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:01" (1/1) ... [2022-11-21 17:00:01,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:01" (1/1) ... [2022-11-21 17:00:01,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:00:01,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:00:01,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:00:01,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:00:01,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:01" (1/1) ... [2022-11-21 17:00:01,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:00:01,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:00:01,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:00:01,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203b913b-3769-4839-be7a-424b8c720162/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:00:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:00:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:00:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:00:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:00:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 17:00:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:00:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 17:00:01,422 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 17:00:01,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:00:01,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:00:01,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:00:01,425 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 17:00:01,552 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:00:01,554 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:00:01,925 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:00:01,932 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:00:01,933 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:00:01,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:00:01 BoogieIcfgContainer [2022-11-21 17:00:01,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:00:01,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:00:01,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:00:01,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:00:01,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:00:00" (1/3) ... [2022-11-21 17:00:01,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79fd2b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:00:01, skipping insertion in model container [2022-11-21 17:00:01,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:01" (2/3) ... [2022-11-21 17:00:01,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79fd2b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:00:01, skipping insertion in model container [2022-11-21 17:00:01,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:00:01" (3/3) ... [2022-11-21 17:00:01,956 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2022-11-21 17:00:01,965 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 17:00:01,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:00:01,974 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-21 17:00:01,974 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 17:00:02,042 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-21 17:00:02,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 106 transitions, 220 flow [2022-11-21 17:00:02,142 INFO L130 PetriNetUnfolder]: 0/105 cut-off events. [2022-11-21 17:00:02,143 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 17:00:02,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 0/105 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-21 17:00:02,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 106 transitions, 220 flow [2022-11-21 17:00:02,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 97 transitions, 197 flow [2022-11-21 17:00:02,169 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:00:02,176 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;@785b000d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:00:02,177 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-21 17:00:02,194 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-11-21 17:00:02,194 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:00:02,194 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:02,195 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] [2022-11-21 17:00:02,196 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:02,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:02,201 INFO L85 PathProgramCache]: Analyzing trace with hash -161846166, now seen corresponding path program 1 times [2022-11-21 17:00:02,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:02,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910224802] [2022-11-21 17:00:02,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:02,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:03,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:03,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:03,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910224802] [2022-11-21 17:00:03,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910224802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:03,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:03,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:00:03,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888051417] [2022-11-21 17:00:03,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:03,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:00:03,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:03,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:00:03,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:00:03,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 106 [2022-11-21 17:00:03,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 197 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:03,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:03,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 106 [2022-11-21 17:00:03,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:03,836 INFO L130 PetriNetUnfolder]: 347/961 cut-off events. [2022-11-21 17:00:03,837 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 17:00:03,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1701 conditions, 961 events. 347/961 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5361 event pairs, 170 based on Foata normal form. 0/861 useless extension candidates. Maximal degree in co-relation 1662. Up to 526 conditions per place. [2022-11-21 17:00:03,854 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 91 selfloop transitions, 22 changer transitions 0/175 dead transitions. [2022-11-21 17:00:03,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 175 transitions, 579 flow [2022-11-21 17:00:03,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:00:03,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:00:03,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2022-11-21 17:00:03,880 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.839622641509434 [2022-11-21 17:00:03,881 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 534 transitions. [2022-11-21 17:00:03,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 534 transitions. [2022-11-21 17:00:03,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:03,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 534 transitions. [2022-11-21 17:00:03,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:03,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:03,903 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:03,905 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 197 flow. Second operand 6 states and 534 transitions. [2022-11-21 17:00:03,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 175 transitions, 579 flow [2022-11-21 17:00:03,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 175 transitions, 578 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 17:00:03,918 INFO L231 Difference]: Finished difference. Result has 110 places, 118 transitions, 346 flow [2022-11-21 17:00:03,920 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=110, PETRI_TRANSITIONS=118} [2022-11-21 17:00:03,926 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 9 predicate places. [2022-11-21 17:00:03,926 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 118 transitions, 346 flow [2022-11-21 17:00:03,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:03,927 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:03,928 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] [2022-11-21 17:00:03,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:00:03,929 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:03,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:03,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1010088859, now seen corresponding path program 1 times [2022-11-21 17:00:03,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:03,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883624704] [2022-11-21 17:00:03,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:03,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:04,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:04,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883624704] [2022-11-21 17:00:04,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883624704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:04,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:04,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:00:04,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232253658] [2022-11-21 17:00:04,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:04,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:00:04,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:04,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:00:04,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:00:04,327 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 106 [2022-11-21 17:00:04,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 118 transitions, 346 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:04,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:04,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 106 [2022-11-21 17:00:04,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:04,775 INFO L130 PetriNetUnfolder]: 332/958 cut-off events. [2022-11-21 17:00:04,776 INFO L131 PetriNetUnfolder]: For 394/400 co-relation queries the response was YES. [2022-11-21 17:00:04,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2095 conditions, 958 events. 332/958 cut-off events. For 394/400 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5421 event pairs, 155 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 2052. Up to 591 conditions per place. [2022-11-21 17:00:04,783 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 80 selfloop transitions, 26 changer transitions 0/168 dead transitions. [2022-11-21 17:00:04,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 168 transitions, 748 flow [2022-11-21 17:00:04,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:00:04,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:00:04,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2022-11-21 17:00:04,785 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7955974842767296 [2022-11-21 17:00:04,785 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 506 transitions. [2022-11-21 17:00:04,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 506 transitions. [2022-11-21 17:00:04,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:04,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 506 transitions. [2022-11-21 17:00:04,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:04,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:04,789 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:04,789 INFO L175 Difference]: Start difference. First operand has 110 places, 118 transitions, 346 flow. Second operand 6 states and 506 transitions. [2022-11-21 17:00:04,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 168 transitions, 748 flow [2022-11-21 17:00:04,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 168 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:00:04,796 INFO L231 Difference]: Finished difference. Result has 120 places, 139 transitions, 530 flow [2022-11-21 17:00:04,797 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=530, PETRI_PLACES=120, PETRI_TRANSITIONS=139} [2022-11-21 17:00:04,798 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 19 predicate places. [2022-11-21 17:00:04,798 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 139 transitions, 530 flow [2022-11-21 17:00:04,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:04,798 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:04,799 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] [2022-11-21 17:00:04,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:00:04,799 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:04,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:04,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1644406941, now seen corresponding path program 1 times [2022-11-21 17:00:04,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:04,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312163317] [2022-11-21 17:00:04,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:04,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:05,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:05,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:05,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312163317] [2022-11-21 17:00:05,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312163317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:05,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:05,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:00:05,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629240093] [2022-11-21 17:00:05,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:05,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:00:05,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:05,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:00:05,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:00:05,146 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 106 [2022-11-21 17:00:05,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 139 transitions, 530 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:05,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:05,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 106 [2022-11-21 17:00:05,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:05,657 INFO L130 PetriNetUnfolder]: 502/1324 cut-off events. [2022-11-21 17:00:05,657 INFO L131 PetriNetUnfolder]: For 780/786 co-relation queries the response was YES. [2022-11-21 17:00:05,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3293 conditions, 1324 events. 502/1324 cut-off events. For 780/786 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7785 event pairs, 196 based on Foata normal form. 0/1229 useless extension candidates. Maximal degree in co-relation 3245. Up to 895 conditions per place. [2022-11-21 17:00:05,667 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 94 selfloop transitions, 69 changer transitions 4/227 dead transitions. [2022-11-21 17:00:05,668 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 227 transitions, 1200 flow [2022-11-21 17:00:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:00:05,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:00:05,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 523 transitions. [2022-11-21 17:00:05,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8223270440251572 [2022-11-21 17:00:05,670 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 523 transitions. [2022-11-21 17:00:05,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 523 transitions. [2022-11-21 17:00:05,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:05,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 523 transitions. [2022-11-21 17:00:05,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:05,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:05,674 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:05,674 INFO L175 Difference]: Start difference. First operand has 120 places, 139 transitions, 530 flow. Second operand 6 states and 523 transitions. [2022-11-21 17:00:05,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 227 transitions, 1200 flow [2022-11-21 17:00:05,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 227 transitions, 1200 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:00:05,684 INFO L231 Difference]: Finished difference. Result has 130 places, 202 transitions, 1116 flow [2022-11-21 17:00:05,684 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1116, PETRI_PLACES=130, PETRI_TRANSITIONS=202} [2022-11-21 17:00:05,685 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 29 predicate places. [2022-11-21 17:00:05,685 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 202 transitions, 1116 flow [2022-11-21 17:00:05,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:05,686 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:05,686 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:05,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:00:05,687 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:05,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:05,687 INFO L85 PathProgramCache]: Analyzing trace with hash -82871010, now seen corresponding path program 1 times [2022-11-21 17:00:05,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:05,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838516811] [2022-11-21 17:00:05,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:05,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:05,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:05,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:05,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838516811] [2022-11-21 17:00:05,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838516811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:05,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:05,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:00:05,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193654313] [2022-11-21 17:00:05,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:05,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:00:05,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:05,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:00:05,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:00:06,000 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 106 [2022-11-21 17:00:06,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 202 transitions, 1116 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:06,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:06,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 106 [2022-11-21 17:00:06,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:06,517 INFO L130 PetriNetUnfolder]: 545/1421 cut-off events. [2022-11-21 17:00:06,517 INFO L131 PetriNetUnfolder]: For 1828/1839 co-relation queries the response was YES. [2022-11-21 17:00:06,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4543 conditions, 1421 events. 545/1421 cut-off events. For 1828/1839 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 8599 event pairs, 155 based on Foata normal form. 0/1367 useless extension candidates. Maximal degree in co-relation 4490. Up to 995 conditions per place. [2022-11-21 17:00:06,531 INFO L137 encePairwiseOnDemand]: 91/106 looper letters, 145 selfloop transitions, 67 changer transitions 0/273 dead transitions. [2022-11-21 17:00:06,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 273 transitions, 1958 flow [2022-11-21 17:00:06,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:00:06,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 17:00:06,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2022-11-21 17:00:06,534 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7845911949685535 [2022-11-21 17:00:06,534 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 499 transitions. [2022-11-21 17:00:06,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 499 transitions. [2022-11-21 17:00:06,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:06,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 499 transitions. [2022-11-21 17:00:06,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:06,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:06,538 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:06,538 INFO L175 Difference]: Start difference. First operand has 130 places, 202 transitions, 1116 flow. Second operand 6 states and 499 transitions. [2022-11-21 17:00:06,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 273 transitions, 1958 flow [2022-11-21 17:00:06,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 273 transitions, 1894 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-21 17:00:06,591 INFO L231 Difference]: Finished difference. Result has 140 places, 255 transitions, 1704 flow [2022-11-21 17:00:06,591 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1704, PETRI_PLACES=140, PETRI_TRANSITIONS=255} [2022-11-21 17:00:06,593 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 39 predicate places. [2022-11-21 17:00:06,593 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 255 transitions, 1704 flow [2022-11-21 17:00:06,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:06,594 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:06,594 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] [2022-11-21 17:00:06,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:00:06,599 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:06,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:06,600 INFO L85 PathProgramCache]: Analyzing trace with hash -828484541, now seen corresponding path program 1 times [2022-11-21 17:00:06,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:06,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001258742] [2022-11-21 17:00:06,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:06,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:07,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:07,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001258742] [2022-11-21 17:00:07,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001258742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:07,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:07,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:00:07,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360886528] [2022-11-21 17:00:07,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:07,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:07,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:07,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:07,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:07,372 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:00:07,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 255 transitions, 1704 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:07,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:07,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:00:07,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:09,187 INFO L130 PetriNetUnfolder]: 1216/3141 cut-off events. [2022-11-21 17:00:09,187 INFO L131 PetriNetUnfolder]: For 6121/6127 co-relation queries the response was YES. [2022-11-21 17:00:09,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11141 conditions, 3141 events. 1216/3141 cut-off events. For 6121/6127 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 22357 event pairs, 152 based on Foata normal form. 11/3084 useless extension candidates. Maximal degree in co-relation 11079. Up to 1123 conditions per place. [2022-11-21 17:00:09,218 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 455 selfloop transitions, 70 changer transitions 2/581 dead transitions. [2022-11-21 17:00:09,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 581 transitions, 5158 flow [2022-11-21 17:00:09,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 17:00:09,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 17:00:09,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1105 transitions. [2022-11-21 17:00:09,222 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6949685534591195 [2022-11-21 17:00:09,222 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1105 transitions. [2022-11-21 17:00:09,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1105 transitions. [2022-11-21 17:00:09,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:09,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1105 transitions. [2022-11-21 17:00:09,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 73.66666666666667) internal successors, (1105), 15 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:09,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:09,229 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:09,229 INFO L175 Difference]: Start difference. First operand has 140 places, 255 transitions, 1704 flow. Second operand 15 states and 1105 transitions. [2022-11-21 17:00:09,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 581 transitions, 5158 flow [2022-11-21 17:00:09,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 581 transitions, 5010 flow, removed 74 selfloop flow, removed 0 redundant places. [2022-11-21 17:00:09,299 INFO L231 Difference]: Finished difference. Result has 162 places, 312 transitions, 2484 flow [2022-11-21 17:00:09,300 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1630, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2484, PETRI_PLACES=162, PETRI_TRANSITIONS=312} [2022-11-21 17:00:09,301 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 61 predicate places. [2022-11-21 17:00:09,301 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 312 transitions, 2484 flow [2022-11-21 17:00:09,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:09,301 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:09,302 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] [2022-11-21 17:00:09,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:00:09,302 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:09,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:09,303 INFO L85 PathProgramCache]: Analyzing trace with hash 775345589, now seen corresponding path program 2 times [2022-11-21 17:00:09,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:09,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747541295] [2022-11-21 17:00:09,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:09,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:10,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:10,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747541295] [2022-11-21 17:00:10,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747541295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:10,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:10,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:00:10,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212669629] [2022-11-21 17:00:10,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:10,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:10,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:10,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:10,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:10,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:00:10,091 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 312 transitions, 2484 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:10,091 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:10,091 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:00:10,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:11,709 INFO L130 PetriNetUnfolder]: 1266/3256 cut-off events. [2022-11-21 17:00:11,710 INFO L131 PetriNetUnfolder]: For 8605/8623 co-relation queries the response was YES. [2022-11-21 17:00:11,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12343 conditions, 3256 events. 1266/3256 cut-off events. For 8605/8623 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 23485 event pairs, 187 based on Foata normal form. 5/3190 useless extension candidates. Maximal degree in co-relation 12270. Up to 1998 conditions per place. [2022-11-21 17:00:11,753 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 282 selfloop transitions, 95 changer transitions 0/431 dead transitions. [2022-11-21 17:00:11,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 431 transitions, 4124 flow [2022-11-21 17:00:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 17:00:11,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 17:00:11,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 886 transitions. [2022-11-21 17:00:11,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6965408805031447 [2022-11-21 17:00:11,757 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 886 transitions. [2022-11-21 17:00:11,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 886 transitions. [2022-11-21 17:00:11,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:11,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 886 transitions. [2022-11-21 17:00:11,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 73.83333333333333) internal successors, (886), 12 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:11,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:11,765 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:11,765 INFO L175 Difference]: Start difference. First operand has 162 places, 312 transitions, 2484 flow. Second operand 12 states and 886 transitions. [2022-11-21 17:00:11,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 431 transitions, 4124 flow [2022-11-21 17:00:11,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 431 transitions, 4109 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-11-21 17:00:11,869 INFO L231 Difference]: Finished difference. Result has 175 places, 336 transitions, 3175 flow [2022-11-21 17:00:11,870 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=2473, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3175, PETRI_PLACES=175, PETRI_TRANSITIONS=336} [2022-11-21 17:00:11,873 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 74 predicate places. [2022-11-21 17:00:11,874 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 336 transitions, 3175 flow [2022-11-21 17:00:11,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:11,875 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:11,875 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] [2022-11-21 17:00:11,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:00:11,876 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:11,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:11,876 INFO L85 PathProgramCache]: Analyzing trace with hash -330867265, now seen corresponding path program 1 times [2022-11-21 17:00:11,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:11,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469907631] [2022-11-21 17:00:11,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:11,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:12,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:12,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:12,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469907631] [2022-11-21 17:00:12,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469907631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:12,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:12,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:00:12,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917486413] [2022-11-21 17:00:12,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:12,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:12,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:12,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:12,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:12,569 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:00:12,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 336 transitions, 3175 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:12,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:12,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:00:12,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:15,027 INFO L130 PetriNetUnfolder]: 1954/5075 cut-off events. [2022-11-21 17:00:15,028 INFO L131 PetriNetUnfolder]: For 17556/17573 co-relation queries the response was YES. [2022-11-21 17:00:15,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19812 conditions, 5075 events. 1954/5075 cut-off events. For 17556/17573 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 40836 event pairs, 222 based on Foata normal form. 13/4983 useless extension candidates. Maximal degree in co-relation 19734. Up to 1264 conditions per place. [2022-11-21 17:00:15,105 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 695 selfloop transitions, 107 changer transitions 7/863 dead transitions. [2022-11-21 17:00:15,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 863 transitions, 9124 flow [2022-11-21 17:00:15,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 17:00:15,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-21 17:00:15,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1138 transitions. [2022-11-21 17:00:15,110 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7668463611859838 [2022-11-21 17:00:15,110 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1138 transitions. [2022-11-21 17:00:15,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1138 transitions. [2022-11-21 17:00:15,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:15,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1138 transitions. [2022-11-21 17:00:15,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 81.28571428571429) internal successors, (1138), 14 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:15,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:15,118 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:15,118 INFO L175 Difference]: Start difference. First operand has 175 places, 336 transitions, 3175 flow. Second operand 14 states and 1138 transitions. [2022-11-21 17:00:15,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 863 transitions, 9124 flow [2022-11-21 17:00:15,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 863 transitions, 8953 flow, removed 5 selfloop flow, removed 7 redundant places. [2022-11-21 17:00:15,255 INFO L231 Difference]: Finished difference. Result has 191 places, 428 transitions, 4700 flow [2022-11-21 17:00:15,255 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=3113, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4700, PETRI_PLACES=191, PETRI_TRANSITIONS=428} [2022-11-21 17:00:15,256 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 90 predicate places. [2022-11-21 17:00:15,256 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 428 transitions, 4700 flow [2022-11-21 17:00:15,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:15,257 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:15,257 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] [2022-11-21 17:00:15,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:00:15,258 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:15,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:15,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1562676889, now seen corresponding path program 3 times [2022-11-21 17:00:15,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:15,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828159102] [2022-11-21 17:00:15,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:15,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:16,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:16,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828159102] [2022-11-21 17:00:16,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828159102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:16,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:16,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:00:16,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650778908] [2022-11-21 17:00:16,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:16,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:16,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:16,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:16,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:16,052 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:00:16,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 428 transitions, 4700 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:16,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:16,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:00:16,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:18,525 INFO L130 PetriNetUnfolder]: 2044/5251 cut-off events. [2022-11-21 17:00:18,526 INFO L131 PetriNetUnfolder]: For 23982/24012 co-relation queries the response was YES. [2022-11-21 17:00:18,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22125 conditions, 5251 events. 2044/5251 cut-off events. For 23982/24012 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 42563 event pairs, 321 based on Foata normal form. 13/5150 useless extension candidates. Maximal degree in co-relation 22037. Up to 3165 conditions per place. [2022-11-21 17:00:18,599 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 413 selfloop transitions, 146 changer transitions 0/613 dead transitions. [2022-11-21 17:00:18,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 613 transitions, 7639 flow [2022-11-21 17:00:18,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 17:00:18,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-21 17:00:18,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1023 transitions. [2022-11-21 17:00:18,602 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6893530997304582 [2022-11-21 17:00:18,602 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1023 transitions. [2022-11-21 17:00:18,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1023 transitions. [2022-11-21 17:00:18,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:18,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1023 transitions. [2022-11-21 17:00:18,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.07142857142857) internal successors, (1023), 14 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:18,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:18,608 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:18,609 INFO L175 Difference]: Start difference. First operand has 191 places, 428 transitions, 4700 flow. Second operand 14 states and 1023 transitions. [2022-11-21 17:00:18,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 613 transitions, 7639 flow [2022-11-21 17:00:18,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 613 transitions, 7609 flow, removed 9 selfloop flow, removed 3 redundant places. [2022-11-21 17:00:18,791 INFO L231 Difference]: Finished difference. Result has 208 places, 465 transitions, 5885 flow [2022-11-21 17:00:18,792 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4685, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5885, PETRI_PLACES=208, PETRI_TRANSITIONS=465} [2022-11-21 17:00:18,793 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 107 predicate places. [2022-11-21 17:00:18,793 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 465 transitions, 5885 flow [2022-11-21 17:00:18,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:18,794 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:18,794 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] [2022-11-21 17:00:18,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 17:00:18,794 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:18,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:18,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1054438843, now seen corresponding path program 2 times [2022-11-21 17:00:18,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:18,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629138215] [2022-11-21 17:00:18,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:18,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:19,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:19,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:19,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629138215] [2022-11-21 17:00:19,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629138215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:19,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:19,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:00:19,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649895903] [2022-11-21 17:00:19,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:19,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:19,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:19,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:19,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:19,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:00:19,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 465 transitions, 5885 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:19,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:19,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:00:19,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:22,197 INFO L130 PetriNetUnfolder]: 2164/5599 cut-off events. [2022-11-21 17:00:22,197 INFO L131 PetriNetUnfolder]: For 32518/32538 co-relation queries the response was YES. [2022-11-21 17:00:22,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24583 conditions, 5599 events. 2164/5599 cut-off events. For 32518/32538 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 45899 event pairs, 296 based on Foata normal form. 23/5511 useless extension candidates. Maximal degree in co-relation 24488. Up to 1436 conditions per place. [2022-11-21 17:00:22,291 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 757 selfloop transitions, 134 changer transitions 8/953 dead transitions. [2022-11-21 17:00:22,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 953 transitions, 11900 flow [2022-11-21 17:00:22,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 17:00:22,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 17:00:22,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1218 transitions. [2022-11-21 17:00:22,295 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7660377358490567 [2022-11-21 17:00:22,296 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1218 transitions. [2022-11-21 17:00:22,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1218 transitions. [2022-11-21 17:00:22,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:22,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1218 transitions. [2022-11-21 17:00:22,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.2) internal successors, (1218), 15 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:22,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:22,305 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:22,305 INFO L175 Difference]: Start difference. First operand has 208 places, 465 transitions, 5885 flow. Second operand 15 states and 1218 transitions. [2022-11-21 17:00:22,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 953 transitions, 11900 flow [2022-11-21 17:00:22,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 953 transitions, 11712 flow, removed 32 selfloop flow, removed 6 redundant places. [2022-11-21 17:00:22,587 INFO L231 Difference]: Finished difference. Result has 221 places, 496 transitions, 6721 flow [2022-11-21 17:00:22,588 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=5784, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6721, PETRI_PLACES=221, PETRI_TRANSITIONS=496} [2022-11-21 17:00:22,589 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 120 predicate places. [2022-11-21 17:00:22,590 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 496 transitions, 6721 flow [2022-11-21 17:00:22,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:22,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:22,591 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] [2022-11-21 17:00:22,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 17:00:22,591 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:22,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:22,592 INFO L85 PathProgramCache]: Analyzing trace with hash 625135215, now seen corresponding path program 4 times [2022-11-21 17:00:22,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:22,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970183086] [2022-11-21 17:00:22,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:22,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:23,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:23,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:23,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970183086] [2022-11-21 17:00:23,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970183086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:23,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:23,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:00:23,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052305166] [2022-11-21 17:00:23,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:23,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:23,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:23,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:23,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:23,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:00:23,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 496 transitions, 6721 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:23,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:23,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:00:23,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:25,644 INFO L130 PetriNetUnfolder]: 2313/5907 cut-off events. [2022-11-21 17:00:25,645 INFO L131 PetriNetUnfolder]: For 41560/41594 co-relation queries the response was YES. [2022-11-21 17:00:25,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27375 conditions, 5907 events. 2313/5907 cut-off events. For 41560/41594 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 49064 event pairs, 365 based on Foata normal form. 15/5799 useless extension candidates. Maximal degree in co-relation 27275. Up to 3397 conditions per place. [2022-11-21 17:00:25,869 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 469 selfloop transitions, 183 changer transitions 0/706 dead transitions. [2022-11-21 17:00:25,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 706 transitions, 10421 flow [2022-11-21 17:00:25,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 17:00:25,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-21 17:00:25,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1026 transitions. [2022-11-21 17:00:25,886 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6913746630727763 [2022-11-21 17:00:25,886 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1026 transitions. [2022-11-21 17:00:25,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1026 transitions. [2022-11-21 17:00:25,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:25,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1026 transitions. [2022-11-21 17:00:25,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.28571428571429) internal successors, (1026), 14 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:25,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:25,895 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:25,895 INFO L175 Difference]: Start difference. First operand has 221 places, 496 transitions, 6721 flow. Second operand 14 states and 1026 transitions. [2022-11-21 17:00:25,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 706 transitions, 10421 flow [2022-11-21 17:00:26,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 706 transitions, 10233 flow, removed 16 selfloop flow, removed 8 redundant places. [2022-11-21 17:00:26,303 INFO L231 Difference]: Finished difference. Result has 233 places, 546 transitions, 8119 flow [2022-11-21 17:00:26,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=6601, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8119, PETRI_PLACES=233, PETRI_TRANSITIONS=546} [2022-11-21 17:00:26,306 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 132 predicate places. [2022-11-21 17:00:26,306 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 546 transitions, 8119 flow [2022-11-21 17:00:26,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:26,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:26,307 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:26,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 17:00:26,309 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:26,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:26,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1803109231, now seen corresponding path program 3 times [2022-11-21 17:00:26,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:26,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744942800] [2022-11-21 17:00:26,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:26,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:26,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:26,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744942800] [2022-11-21 17:00:26,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744942800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:26,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:26,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:00:26,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302129812] [2022-11-21 17:00:26,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:26,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:26,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:26,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:26,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:26,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:00:26,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 546 transitions, 8119 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:26,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:26,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:00:26,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:29,983 INFO L130 PetriNetUnfolder]: 2460/6333 cut-off events. [2022-11-21 17:00:29,983 INFO L131 PetriNetUnfolder]: For 51119/51143 co-relation queries the response was YES. [2022-11-21 17:00:30,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30249 conditions, 6333 events. 2460/6333 cut-off events. For 51119/51143 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 53357 event pairs, 345 based on Foata normal form. 25/6235 useless extension candidates. Maximal degree in co-relation 30142. Up to 1719 conditions per place. [2022-11-21 17:00:30,041 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 833 selfloop transitions, 168 changer transitions 8/1063 dead transitions. [2022-11-21 17:00:30,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 1063 transitions, 15105 flow [2022-11-21 17:00:30,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 17:00:30,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 17:00:30,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1220 transitions. [2022-11-21 17:00:30,045 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7672955974842768 [2022-11-21 17:00:30,045 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1220 transitions. [2022-11-21 17:00:30,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1220 transitions. [2022-11-21 17:00:30,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:30,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1220 transitions. [2022-11-21 17:00:30,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.33333333333333) internal successors, (1220), 15 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:30,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:30,052 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:30,052 INFO L175 Difference]: Start difference. First operand has 233 places, 546 transitions, 8119 flow. Second operand 15 states and 1220 transitions. [2022-11-21 17:00:30,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 1063 transitions, 15105 flow [2022-11-21 17:00:30,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1063 transitions, 14893 flow, removed 66 selfloop flow, removed 5 redundant places. [2022-11-21 17:00:30,401 INFO L231 Difference]: Finished difference. Result has 248 places, 591 transitions, 9391 flow [2022-11-21 17:00:30,402 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=7999, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9391, PETRI_PLACES=248, PETRI_TRANSITIONS=591} [2022-11-21 17:00:30,403 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 147 predicate places. [2022-11-21 17:00:30,403 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 591 transitions, 9391 flow [2022-11-21 17:00:30,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:30,404 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:30,404 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] [2022-11-21 17:00:30,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 17:00:30,404 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:30,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:30,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1835629257, now seen corresponding path program 5 times [2022-11-21 17:00:30,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:30,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012290268] [2022-11-21 17:00:30,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:30,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:30,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:30,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:30,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012290268] [2022-11-21 17:00:30,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012290268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:30,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:30,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:00:30,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872931839] [2022-11-21 17:00:30,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:30,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:30,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:30,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:30,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:30,993 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:00:30,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 591 transitions, 9391 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:30,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:30,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:00:30,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:33,695 INFO L130 PetriNetUnfolder]: 2648/6739 cut-off events. [2022-11-21 17:00:33,695 INFO L131 PetriNetUnfolder]: For 64389/64427 co-relation queries the response was YES. [2022-11-21 17:00:33,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34031 conditions, 6739 events. 2648/6739 cut-off events. For 64389/64427 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 57472 event pairs, 442 based on Foata normal form. 17/6622 useless extension candidates. Maximal degree in co-relation 33918. Up to 3666 conditions per place. [2022-11-21 17:00:33,775 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 542 selfloop transitions, 220 changer transitions 0/816 dead transitions. [2022-11-21 17:00:33,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 816 transitions, 13642 flow [2022-11-21 17:00:33,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 17:00:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-21 17:00:33,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1026 transitions. [2022-11-21 17:00:33,784 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6913746630727763 [2022-11-21 17:00:33,784 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1026 transitions. [2022-11-21 17:00:33,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1026 transitions. [2022-11-21 17:00:33,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:33,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1026 transitions. [2022-11-21 17:00:33,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.28571428571429) internal successors, (1026), 14 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:33,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:33,801 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:33,801 INFO L175 Difference]: Start difference. First operand has 248 places, 591 transitions, 9391 flow. Second operand 14 states and 1026 transitions. [2022-11-21 17:00:33,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 816 transitions, 13642 flow [2022-11-21 17:00:34,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 816 transitions, 13383 flow, removed 33 selfloop flow, removed 8 redundant places. [2022-11-21 17:00:34,244 INFO L231 Difference]: Finished difference. Result has 261 places, 644 transitions, 11008 flow [2022-11-21 17:00:34,245 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9226, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11008, PETRI_PLACES=261, PETRI_TRANSITIONS=644} [2022-11-21 17:00:34,245 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 160 predicate places. [2022-11-21 17:00:34,246 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 644 transitions, 11008 flow [2022-11-21 17:00:34,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:34,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:34,246 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] [2022-11-21 17:00:34,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 17:00:34,247 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:34,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:34,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1951202871, now seen corresponding path program 4 times [2022-11-21 17:00:34,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:34,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049417162] [2022-11-21 17:00:34,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:34,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:34,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:34,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049417162] [2022-11-21 17:00:34,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049417162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:34,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:34,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:00:34,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811714067] [2022-11-21 17:00:34,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:34,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:34,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:34,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:34,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:34,888 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:00:34,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 644 transitions, 11008 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:34,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:34,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:00:34,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:38,611 INFO L130 PetriNetUnfolder]: 2821/7181 cut-off events. [2022-11-21 17:00:38,611 INFO L131 PetriNetUnfolder]: For 78907/78935 co-relation queries the response was YES. [2022-11-21 17:00:38,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37614 conditions, 7181 events. 2821/7181 cut-off events. For 78907/78935 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 61953 event pairs, 487 based on Foata normal form. 27/7071 useless extension candidates. Maximal degree in co-relation 37493. Up to 2074 conditions per place. [2022-11-21 17:00:38,799 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 917 selfloop transitions, 197 changer transitions 6/1174 dead transitions. [2022-11-21 17:00:38,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 1174 transitions, 18850 flow [2022-11-21 17:00:38,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 17:00:38,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 17:00:38,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1220 transitions. [2022-11-21 17:00:38,804 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7672955974842768 [2022-11-21 17:00:38,804 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1220 transitions. [2022-11-21 17:00:38,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1220 transitions. [2022-11-21 17:00:38,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:38,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1220 transitions. [2022-11-21 17:00:38,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.33333333333333) internal successors, (1220), 15 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:38,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:38,813 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:38,813 INFO L175 Difference]: Start difference. First operand has 261 places, 644 transitions, 11008 flow. Second operand 15 states and 1220 transitions. [2022-11-21 17:00:38,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 1174 transitions, 18850 flow [2022-11-21 17:00:39,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 1174 transitions, 18726 flow, removed 50 selfloop flow, removed 4 redundant places. [2022-11-21 17:00:39,258 INFO L231 Difference]: Finished difference. Result has 278 places, 691 transitions, 12582 flow [2022-11-21 17:00:39,259 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=10900, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12582, PETRI_PLACES=278, PETRI_TRANSITIONS=691} [2022-11-21 17:00:39,259 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 177 predicate places. [2022-11-21 17:00:39,260 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 691 transitions, 12582 flow [2022-11-21 17:00:39,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:39,260 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:39,260 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] [2022-11-21 17:00:39,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 17:00:39,261 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:39,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:39,261 INFO L85 PathProgramCache]: Analyzing trace with hash 2137935371, now seen corresponding path program 6 times [2022-11-21 17:00:39,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:39,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583685308] [2022-11-21 17:00:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:39,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:39,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:39,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:39,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583685308] [2022-11-21 17:00:39,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583685308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:39,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:39,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:00:39,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376214852] [2022-11-21 17:00:39,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:39,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:39,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:39,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:39,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:39,933 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:00:39,934 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 691 transitions, 12582 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:39,934 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:39,934 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:00:39,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:43,617 INFO L130 PetriNetUnfolder]: 3471/8836 cut-off events. [2022-11-21 17:00:43,617 INFO L131 PetriNetUnfolder]: For 103336/103357 co-relation queries the response was YES. [2022-11-21 17:00:43,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47148 conditions, 8836 events. 3471/8836 cut-off events. For 103336/103357 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 79487 event pairs, 656 based on Foata normal form. 11/8669 useless extension candidates. Maximal degree in co-relation 47020. Up to 4267 conditions per place. [2022-11-21 17:00:43,745 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 796 selfloop transitions, 213 changer transitions 1/1064 dead transitions. [2022-11-21 17:00:43,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 1064 transitions, 19008 flow [2022-11-21 17:00:43,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 17:00:43,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-21 17:00:43,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1046 transitions. [2022-11-21 17:00:43,748 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7048517520215634 [2022-11-21 17:00:43,748 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1046 transitions. [2022-11-21 17:00:43,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1046 transitions. [2022-11-21 17:00:43,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:43,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1046 transitions. [2022-11-21 17:00:43,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 74.71428571428571) internal successors, (1046), 14 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:43,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:43,756 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:43,757 INFO L175 Difference]: Start difference. First operand has 278 places, 691 transitions, 12582 flow. Second operand 14 states and 1046 transitions. [2022-11-21 17:00:43,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 1064 transitions, 19008 flow [2022-11-21 17:00:44,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1064 transitions, 18757 flow, removed 20 selfloop flow, removed 7 redundant places. [2022-11-21 17:00:44,567 INFO L231 Difference]: Finished difference. Result has 293 places, 748 transitions, 14495 flow [2022-11-21 17:00:44,568 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=12410, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14495, PETRI_PLACES=293, PETRI_TRANSITIONS=748} [2022-11-21 17:00:44,568 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 192 predicate places. [2022-11-21 17:00:44,569 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 748 transitions, 14495 flow [2022-11-21 17:00:44,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:44,569 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:44,569 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:44,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 17:00:44,570 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:44,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:44,570 INFO L85 PathProgramCache]: Analyzing trace with hash -955913989, now seen corresponding path program 5 times [2022-11-21 17:00:44,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:44,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954286121] [2022-11-21 17:00:44,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:44,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:44,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:44,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954286121] [2022-11-21 17:00:44,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954286121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:44,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:44,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:00:44,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239448233] [2022-11-21 17:00:44,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:44,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:44,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:44,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:44,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:44,995 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:00:44,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 748 transitions, 14495 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:44,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:44,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:00:44,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:50,016 INFO L130 PetriNetUnfolder]: 4007/10212 cut-off events. [2022-11-21 17:00:50,016 INFO L131 PetriNetUnfolder]: For 136274/136312 co-relation queries the response was YES. [2022-11-21 17:00:50,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56240 conditions, 10212 events. 4007/10212 cut-off events. For 136274/136312 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 94811 event pairs, 729 based on Foata normal form. 31/10040 useless extension candidates. Maximal degree in co-relation 56103. Up to 3277 conditions per place. [2022-11-21 17:00:50,152 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1155 selfloop transitions, 205 changer transitions 2/1416 dead transitions. [2022-11-21 17:00:50,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 1416 transitions, 25348 flow [2022-11-21 17:00:50,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 17:00:50,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 17:00:50,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1223 transitions. [2022-11-21 17:00:50,155 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.769182389937107 [2022-11-21 17:00:50,156 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1223 transitions. [2022-11-21 17:00:50,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1223 transitions. [2022-11-21 17:00:50,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:50,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1223 transitions. [2022-11-21 17:00:50,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.53333333333333) internal successors, (1223), 15 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:50,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:50,164 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:50,164 INFO L175 Difference]: Start difference. First operand has 293 places, 748 transitions, 14495 flow. Second operand 15 states and 1223 transitions. [2022-11-21 17:00:50,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 1416 transitions, 25348 flow [2022-11-21 17:00:50,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 1416 transitions, 25164 flow, removed 80 selfloop flow, removed 4 redundant places. [2022-11-21 17:00:50,964 INFO L231 Difference]: Finished difference. Result has 310 places, 799 transitions, 16172 flow [2022-11-21 17:00:50,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=14334, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16172, PETRI_PLACES=310, PETRI_TRANSITIONS=799} [2022-11-21 17:00:50,966 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 209 predicate places. [2022-11-21 17:00:50,966 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 799 transitions, 16172 flow [2022-11-21 17:00:50,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:50,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:50,967 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:50,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 17:00:50,967 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:50,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:50,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1775369167, now seen corresponding path program 7 times [2022-11-21 17:00:50,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:50,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301348939] [2022-11-21 17:00:50,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:50,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:51,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:51,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:51,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301348939] [2022-11-21 17:00:51,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301348939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:51,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:51,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:00:51,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18567315] [2022-11-21 17:00:51,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:51,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:51,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:51,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:51,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:51,390 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:00:51,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 799 transitions, 16172 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:51,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:51,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:00:51,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:00:56,838 INFO L130 PetriNetUnfolder]: 4551/11563 cut-off events. [2022-11-21 17:00:56,838 INFO L131 PetriNetUnfolder]: For 163027/163048 co-relation queries the response was YES. [2022-11-21 17:00:56,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64816 conditions, 11563 events. 4551/11563 cut-off events. For 163027/163048 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 109519 event pairs, 921 based on Foata normal form. 11/11327 useless extension candidates. Maximal degree in co-relation 64672. Up to 4251 conditions per place. [2022-11-21 17:00:57,019 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1006 selfloop transitions, 252 changer transitions 1/1313 dead transitions. [2022-11-21 17:00:57,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 1313 transitions, 24969 flow [2022-11-21 17:00:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 17:00:57,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 17:00:57,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1139 transitions. [2022-11-21 17:00:57,022 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7163522012578616 [2022-11-21 17:00:57,022 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1139 transitions. [2022-11-21 17:00:57,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1139 transitions. [2022-11-21 17:00:57,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:00:57,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1139 transitions. [2022-11-21 17:00:57,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 75.93333333333334) internal successors, (1139), 15 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:57,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:57,028 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:57,028 INFO L175 Difference]: Start difference. First operand has 310 places, 799 transitions, 16172 flow. Second operand 15 states and 1139 transitions. [2022-11-21 17:00:57,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 1313 transitions, 24969 flow [2022-11-21 17:00:58,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 1313 transitions, 24689 flow, removed 41 selfloop flow, removed 7 redundant places. [2022-11-21 17:00:58,239 INFO L231 Difference]: Finished difference. Result has 326 places, 868 transitions, 18706 flow [2022-11-21 17:00:58,240 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=15958, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=799, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18706, PETRI_PLACES=326, PETRI_TRANSITIONS=868} [2022-11-21 17:00:58,240 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 225 predicate places. [2022-11-21 17:00:58,240 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 868 transitions, 18706 flow [2022-11-21 17:00:58,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:58,241 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:00:58,241 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] [2022-11-21 17:00:58,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 17:00:58,242 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:00:58,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:58,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1938109391, now seen corresponding path program 6 times [2022-11-21 17:00:58,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:58,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655694623] [2022-11-21 17:00:58,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:58,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:58,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:58,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:58,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655694623] [2022-11-21 17:00:58,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655694623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:58,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:58,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:00:58,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377750739] [2022-11-21 17:00:58,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:58,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:00:58,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:58,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:00:58,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:00:58,753 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:00:58,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 868 transitions, 18706 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:00:58,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:00:58,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:00:58,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:01:05,023 INFO L130 PetriNetUnfolder]: 4534/11505 cut-off events. [2022-11-21 17:01:05,023 INFO L131 PetriNetUnfolder]: For 183420/183463 co-relation queries the response was YES. [2022-11-21 17:01:05,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66167 conditions, 11505 events. 4534/11505 cut-off events. For 183420/183463 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 109277 event pairs, 904 based on Foata normal form. 31/11294 useless extension candidates. Maximal degree in co-relation 66014. Up to 4270 conditions per place. [2022-11-21 17:01:05,256 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1111 selfloop transitions, 220 changer transitions 4/1389 dead transitions. [2022-11-21 17:01:05,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 1389 transitions, 27849 flow [2022-11-21 17:01:05,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 17:01:05,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 17:01:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1175 transitions. [2022-11-21 17:01:05,260 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7389937106918238 [2022-11-21 17:01:05,260 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1175 transitions. [2022-11-21 17:01:05,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1175 transitions. [2022-11-21 17:01:05,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:01:05,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1175 transitions. [2022-11-21 17:01:05,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.33333333333333) internal successors, (1175), 15 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:05,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:05,268 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:05,269 INFO L175 Difference]: Start difference. First operand has 326 places, 868 transitions, 18706 flow. Second operand 15 states and 1175 transitions. [2022-11-21 17:01:05,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 1389 transitions, 27849 flow [2022-11-21 17:01:06,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 1389 transitions, 27553 flow, removed 144 selfloop flow, removed 3 redundant places. [2022-11-21 17:01:06,858 INFO L231 Difference]: Finished difference. Result has 345 places, 902 transitions, 19910 flow [2022-11-21 17:01:06,859 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=18450, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=868, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19910, PETRI_PLACES=345, PETRI_TRANSITIONS=902} [2022-11-21 17:01:06,860 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 244 predicate places. [2022-11-21 17:01:06,860 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 902 transitions, 19910 flow [2022-11-21 17:01:06,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:06,860 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:01:06,861 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] [2022-11-21 17:01:06,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 17:01:06,861 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:01:06,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:01:06,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1828752928, now seen corresponding path program 1 times [2022-11-21 17:01:06,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:01:06,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760701813] [2022-11-21 17:01:06,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:01:06,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:01:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:07,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:01:07,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:01:07,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760701813] [2022-11-21 17:01:07,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760701813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:01:07,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:01:07,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:01:07,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795613213] [2022-11-21 17:01:07,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:01:07,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:01:07,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:01:07,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:01:07,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:01:07,295 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-21 17:01:07,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 902 transitions, 19910 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:07,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:01:07,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-21 17:01:07,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:01:14,523 INFO L130 PetriNetUnfolder]: 5123/12486 cut-off events. [2022-11-21 17:01:14,523 INFO L131 PetriNetUnfolder]: For 203877/203892 co-relation queries the response was YES. [2022-11-21 17:01:14,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72586 conditions, 12486 events. 5123/12486 cut-off events. For 203877/203892 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 116762 event pairs, 1521 based on Foata normal form. 13/12213 useless extension candidates. Maximal degree in co-relation 72425. Up to 4958 conditions per place. [2022-11-21 17:01:14,999 INFO L137 encePairwiseOnDemand]: 81/106 looper letters, 1016 selfloop transitions, 258 changer transitions 7/1332 dead transitions. [2022-11-21 17:01:14,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1332 transitions, 27465 flow [2022-11-21 17:01:15,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 17:01:15,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-21 17:01:15,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1111 transitions. [2022-11-21 17:01:15,002 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7486522911051213 [2022-11-21 17:01:15,002 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1111 transitions. [2022-11-21 17:01:15,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1111 transitions. [2022-11-21 17:01:15,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:01:15,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1111 transitions. [2022-11-21 17:01:15,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 79.35714285714286) internal successors, (1111), 14 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:15,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:15,008 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:15,009 INFO L175 Difference]: Start difference. First operand has 345 places, 902 transitions, 19910 flow. Second operand 14 states and 1111 transitions. [2022-11-21 17:01:15,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 1332 transitions, 27465 flow [2022-11-21 17:01:16,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 1332 transitions, 27147 flow, removed 95 selfloop flow, removed 6 redundant places. [2022-11-21 17:01:16,402 INFO L231 Difference]: Finished difference. Result has 361 places, 1044 transitions, 22610 flow [2022-11-21 17:01:16,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=19593, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22610, PETRI_PLACES=361, PETRI_TRANSITIONS=1044} [2022-11-21 17:01:16,404 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 260 predicate places. [2022-11-21 17:01:16,404 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 1044 transitions, 22610 flow [2022-11-21 17:01:16,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:16,404 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:01:16,405 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] [2022-11-21 17:01:16,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 17:01:16,405 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:01:16,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:01:16,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1058484081, now seen corresponding path program 8 times [2022-11-21 17:01:16,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:01:16,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699303223] [2022-11-21 17:01:16,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:01:16,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:01:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:16,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:01:16,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:01:16,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699303223] [2022-11-21 17:01:16,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699303223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:01:16,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:01:16,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:01:16,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607150973] [2022-11-21 17:01:16,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:01:16,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:01:16,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:01:16,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:01:16,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:01:16,851 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-21 17:01:16,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 1044 transitions, 22610 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:16,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:01:16,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-21 17:01:16,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:01:23,822 INFO L130 PetriNetUnfolder]: 4562/11530 cut-off events. [2022-11-21 17:01:23,822 INFO L131 PetriNetUnfolder]: For 204405/204455 co-relation queries the response was YES. [2022-11-21 17:01:24,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70501 conditions, 11530 events. 4562/11530 cut-off events. For 204405/204455 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 109107 event pairs, 972 based on Foata normal form. 22/11299 useless extension candidates. Maximal degree in co-relation 70332. Up to 4153 conditions per place. [2022-11-21 17:01:24,037 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1189 selfloop transitions, 278 changer transitions 0/1525 dead transitions. [2022-11-21 17:01:24,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 1525 transitions, 31733 flow [2022-11-21 17:01:24,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 17:01:24,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-21 17:01:24,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1233 transitions. [2022-11-21 17:01:24,040 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7270047169811321 [2022-11-21 17:01:24,040 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1233 transitions. [2022-11-21 17:01:24,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1233 transitions. [2022-11-21 17:01:24,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:01:24,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1233 transitions. [2022-11-21 17:01:24,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 77.0625) internal successors, (1233), 16 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:24,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:24,046 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:24,046 INFO L175 Difference]: Start difference. First operand has 361 places, 1044 transitions, 22610 flow. Second operand 16 states and 1233 transitions. [2022-11-21 17:01:24,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 1525 transitions, 31733 flow [2022-11-21 17:01:25,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 1525 transitions, 31375 flow, removed 173 selfloop flow, removed 3 redundant places. [2022-11-21 17:01:25,697 INFO L231 Difference]: Finished difference. Result has 380 places, 1093 transitions, 24455 flow [2022-11-21 17:01:25,698 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=22414, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1044, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=775, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=24455, PETRI_PLACES=380, PETRI_TRANSITIONS=1093} [2022-11-21 17:01:25,699 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 279 predicate places. [2022-11-21 17:01:25,699 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 1093 transitions, 24455 flow [2022-11-21 17:01:25,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:25,699 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:01:25,700 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] [2022-11-21 17:01:25,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 17:01:25,700 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-21 17:01:25,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:01:25,701 INFO L85 PathProgramCache]: Analyzing trace with hash 57828066, now seen corresponding path program 2 times [2022-11-21 17:01:25,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:01:25,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260882859] [2022-11-21 17:01:25,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:01:25,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:01:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:26,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:01:26,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:01:26,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260882859] [2022-11-21 17:01:26,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260882859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:01:26,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:01:26,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 17:01:26,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005445315] [2022-11-21 17:01:26,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:01:26,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 17:01:26,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:01:26,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 17:01:26,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 17:01:26,131 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-21 17:01:26,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1093 transitions, 24455 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:26,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:01:26,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-21 17:01:26,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:01:34,204 INFO L130 PetriNetUnfolder]: 5193/12668 cut-off events. [2022-11-21 17:01:34,205 INFO L131 PetriNetUnfolder]: For 233856/233895 co-relation queries the response was YES. [2022-11-21 17:01:34,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77831 conditions, 12668 events. 5193/12668 cut-off events. For 233856/233895 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 118872 event pairs, 1541 based on Foata normal form. 27/12409 useless extension candidates. Maximal degree in co-relation 77655. Up to 4958 conditions per place. [2022-11-21 17:01:34,494 INFO L137 encePairwiseOnDemand]: 81/106 looper letters, 1076 selfloop transitions, 305 changer transitions 7/1439 dead transitions. [2022-11-21 17:01:34,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 1439 transitions, 31453 flow [2022-11-21 17:01:34,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 17:01:34,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 17:01:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1184 transitions. [2022-11-21 17:01:34,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7446540880503144 [2022-11-21 17:01:34,497 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1184 transitions. [2022-11-21 17:01:34,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1184 transitions. [2022-11-21 17:01:34,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:01:34,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1184 transitions. [2022-11-21 17:01:34,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.93333333333334) internal successors, (1184), 15 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:34,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:34,504 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:01:34,504 INFO L175 Difference]: Start difference. First operand has 380 places, 1093 transitions, 24455 flow. Second operand 15 states and 1184 transitions. [2022-11-21 17:01:34,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 1439 transitions, 31453 flow