./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc --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 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 --- 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-5e519f3 [2022-11-02 20:45:57,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:45:57,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:45:57,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:45:57,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:45:57,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:45:57,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:45:57,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:45:57,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:45:57,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:45:57,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:45:57,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:45:57,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:45:57,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:45:57,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:45:57,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:45:57,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:45:57,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:45:57,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:45:57,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:45:57,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:45:57,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:45:57,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:45:57,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:45:57,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:45:57,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:45:57,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:45:57,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:45:57,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:45:57,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:45:57,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:45:57,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:45:57,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:45:57,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:45:57,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:45:57,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:45:57,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:45:57,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:45:57,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:45:57,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:45:57,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:45:57,175 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:45:57,215 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:45:57,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:45:57,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:45:57,216 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:45:57,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:45:57,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:45:57,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:45:57,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:45:57,218 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:45:57,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:45:57,220 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:45:57,220 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:45:57,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:45:57,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:45:57,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:45:57,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:45:57,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:45:57,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:45:57,221 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:45:57,222 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:45:57,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:45:57,222 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:45:57,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:45:57,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:45:57,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:45:57,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:45:57,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:45:57,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:45:57,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:45:57,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:45:57,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:45:57,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:45:57,226 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:45:57,227 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:45:57,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:45:57,227 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_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 [2022-11-02 20:45:57,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:45:57,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:45:57,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:45:57,529 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:45:57,550 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:45:57,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2022-11-02 20:45:57,631 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/data/ab7015570/048ec6bae40642b1961a4aefcaed41e5/FLAG49b5d8f94 [2022-11-02 20:45:58,251 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:45:58,252 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2022-11-02 20:45:58,264 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/data/ab7015570/048ec6bae40642b1961a4aefcaed41e5/FLAG49b5d8f94 [2022-11-02 20:45:58,502 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/data/ab7015570/048ec6bae40642b1961a4aefcaed41e5 [2022-11-02 20:45:58,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:45:58,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:45:58,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:45:58,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:45:58,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:45:58,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:45:58" (1/1) ... [2022-11-02 20:45:58,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8ae8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:58, skipping insertion in model container [2022-11-02 20:45:58,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:45:58" (1/1) ... [2022-11-02 20:45:58,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:45:58,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:45:59,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:45:59,118 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:45:59,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:45:59,264 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:45:59,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:59 WrapperNode [2022-11-02 20:45:59,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:45:59,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:45:59,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:45:59,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:45:59,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:59" (1/1) ... [2022-11-02 20:45:59,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:59" (1/1) ... [2022-11-02 20:45:59,344 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2022-11-02 20:45:59,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:45:59,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:45:59,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:45:59,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:45:59,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:59" (1/1) ... [2022-11-02 20:45:59,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:59" (1/1) ... [2022-11-02 20:45:59,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:59" (1/1) ... [2022-11-02 20:45:59,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:59" (1/1) ... [2022-11-02 20:45:59,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:59" (1/1) ... [2022-11-02 20:45:59,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:59" (1/1) ... [2022-11-02 20:45:59,393 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:59" (1/1) ... [2022-11-02 20:45:59,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:59" (1/1) ... [2022-11-02 20:45:59,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:45:59,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:45:59,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:45:59,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:45:59,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:59" (1/1) ... [2022-11-02 20:45:59,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:45:59,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:45:59,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:45:59,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:45:59,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:45:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:45:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:45:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:45:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:45:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:45:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:45:59,491 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:45:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:45:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:45:59,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:45:59,493 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:45:59,711 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:45:59,714 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:45:59,997 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:46:00,004 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:46:00,005 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:46:00,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:00 BoogieIcfgContainer [2022-11-02 20:46:00,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:46:00,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:46:00,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:46:00,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:46:00,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:45:58" (1/3) ... [2022-11-02 20:46:00,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2000e446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:46:00, skipping insertion in model container [2022-11-02 20:46:00,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:45:59" (2/3) ... [2022-11-02 20:46:00,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2000e446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:46:00, skipping insertion in model container [2022-11-02 20:46:00,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:00" (3/3) ... [2022-11-02 20:46:00,017 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_12-ptr_nr.i [2022-11-02 20:46:00,028 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:46:00,039 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:46:00,039 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-02 20:46:00,040 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:46:00,106 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-02 20:46:00,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 196 flow [2022-11-02 20:46:00,199 INFO L130 PetriNetUnfolder]: 0/93 cut-off events. [2022-11-02 20:46:00,200 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:46:00,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 0/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-02 20:46:00,203 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 196 flow [2022-11-02 20:46:00,209 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 85 transitions, 173 flow [2022-11-02 20:46:00,221 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:46:00,230 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;@2304caf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:46:00,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-02 20:46:00,273 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-11-02 20:46:00,274 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:46:00,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:00,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:00,277 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 20:46:00,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:00,283 INFO L85 PathProgramCache]: Analyzing trace with hash -590123513, now seen corresponding path program 1 times [2022-11-02 20:46:00,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:00,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806500649] [2022-11-02 20:46:00,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:00,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:01,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:01,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:01,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806500649] [2022-11-02 20:46:01,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806500649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:01,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:01,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:46:01,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191366955] [2022-11-02 20:46:01,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:01,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:46:01,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:01,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:46:01,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:46:01,380 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 94 [2022-11-02 20:46:01,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 85 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:01,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:01,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 94 [2022-11-02 20:46:01,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:02,023 INFO L130 PetriNetUnfolder]: 282/789 cut-off events. [2022-11-02 20:46:02,023 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:46:02,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 789 events. 282/789 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4084 event pairs, 171 based on Foata normal form. 0/704 useless extension candidates. Maximal degree in co-relation 1360. Up to 463 conditions per place. [2022-11-02 20:46:02,038 INFO L137 encePairwiseOnDemand]: 83/94 looper letters, 72 selfloop transitions, 22 changer transitions 0/143 dead transitions. [2022-11-02 20:46:02,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 143 transitions, 477 flow [2022-11-02 20:46:02,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:46:02,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:46:02,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 437 transitions. [2022-11-02 20:46:02,065 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.774822695035461 [2022-11-02 20:46:02,066 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 437 transitions. [2022-11-02 20:46:02,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 437 transitions. [2022-11-02 20:46:02,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:02,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 437 transitions. [2022-11-02 20:46:02,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.83333333333333) internal successors, (437), 6 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,087 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,090 INFO L175 Difference]: Start difference. First operand has 89 places, 85 transitions, 173 flow. Second operand 6 states and 437 transitions. [2022-11-02 20:46:02,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 143 transitions, 477 flow [2022-11-02 20:46:02,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 143 transitions, 476 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:46:02,106 INFO L231 Difference]: Finished difference. Result has 98 places, 106 transitions, 322 flow [2022-11-02 20:46:02,108 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=322, PETRI_PLACES=98, PETRI_TRANSITIONS=106} [2022-11-02 20:46:02,114 INFO L287 CegarLoopForPetriNet]: 89 programPoint places, 9 predicate places. [2022-11-02 20:46:02,115 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 106 transitions, 322 flow [2022-11-02 20:46:02,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:02,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:02,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:46:02,118 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 20:46:02,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:02,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1345586986, now seen corresponding path program 1 times [2022-11-02 20:46:02,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:02,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511073533] [2022-11-02 20:46:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:02,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:02,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:02,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:02,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511073533] [2022-11-02 20:46:02,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511073533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:02,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:02,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:46:02,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627095601] [2022-11-02 20:46:02,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:02,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:46:02,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:02,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:46:02,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:46:02,472 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 94 [2022-11-02 20:46:02,473 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 106 transitions, 322 flow. Second operand has 6 states, 6 states have (on average 60.333333333333336) internal successors, (362), 6 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,473 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:02,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 94 [2022-11-02 20:46:02,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:02,930 INFO L130 PetriNetUnfolder]: 345/950 cut-off events. [2022-11-02 20:46:02,930 INFO L131 PetriNetUnfolder]: For 271/277 co-relation queries the response was YES. [2022-11-02 20:46:02,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2023 conditions, 950 events. 345/950 cut-off events. For 271/277 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5325 event pairs, 126 based on Foata normal form. 0/863 useless extension candidates. Maximal degree in co-relation 1981. Up to 538 conditions per place. [2022-11-02 20:46:02,944 INFO L137 encePairwiseOnDemand]: 83/94 looper letters, 103 selfloop transitions, 26 changer transitions 0/180 dead transitions. [2022-11-02 20:46:02,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 180 transitions, 818 flow [2022-11-02 20:46:02,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:46:02,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:46:02,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 463 transitions. [2022-11-02 20:46:02,946 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8209219858156028 [2022-11-02 20:46:02,946 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 463 transitions. [2022-11-02 20:46:02,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 463 transitions. [2022-11-02 20:46:02,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:02,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 463 transitions. [2022-11-02 20:46:02,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 77.16666666666667) internal successors, (463), 6 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,951 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,952 INFO L175 Difference]: Start difference. First operand has 98 places, 106 transitions, 322 flow. Second operand 6 states and 463 transitions. [2022-11-02 20:46:02,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 180 transitions, 818 flow [2022-11-02 20:46:02,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 180 transitions, 818 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:46:02,963 INFO L231 Difference]: Finished difference. Result has 108 places, 127 transitions, 506 flow [2022-11-02 20:46:02,964 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=506, PETRI_PLACES=108, PETRI_TRANSITIONS=127} [2022-11-02 20:46:02,965 INFO L287 CegarLoopForPetriNet]: 89 programPoint places, 19 predicate places. [2022-11-02 20:46:02,965 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 127 transitions, 506 flow [2022-11-02 20:46:02,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.333333333333336) internal successors, (362), 6 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:02,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:02,967 INFO L208 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] [2022-11-02 20:46:02,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:46:02,967 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 20:46:02,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:02,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1133906515, now seen corresponding path program 1 times [2022-11-02 20:46:02,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:02,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216842931] [2022-11-02 20:46:02,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:02,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:03,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:03,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:03,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216842931] [2022-11-02 20:46:03,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216842931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:03,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:03,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:46:03,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714614617] [2022-11-02 20:46:03,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:03,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:46:03,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:03,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:46:03,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:46:03,268 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 94 [2022-11-02 20:46:03,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 127 transitions, 506 flow. Second operand has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:03,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:03,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 94 [2022-11-02 20:46:03,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:03,775 INFO L130 PetriNetUnfolder]: 422/1128 cut-off events. [2022-11-02 20:46:03,776 INFO L131 PetriNetUnfolder]: For 761/767 co-relation queries the response was YES. [2022-11-02 20:46:03,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2912 conditions, 1128 events. 422/1128 cut-off events. For 761/767 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6611 event pairs, 169 based on Foata normal form. 0/1048 useless extension candidates. Maximal degree in co-relation 2862. Up to 779 conditions per place. [2022-11-02 20:46:03,785 INFO L137 encePairwiseOnDemand]: 79/94 looper letters, 96 selfloop transitions, 53 changer transitions 0/195 dead transitions. [2022-11-02 20:46:03,785 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 195 transitions, 1100 flow [2022-11-02 20:46:03,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:46:03,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:46:03,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 421 transitions. [2022-11-02 20:46:03,787 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7464539007092199 [2022-11-02 20:46:03,788 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 421 transitions. [2022-11-02 20:46:03,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 421 transitions. [2022-11-02 20:46:03,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:03,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 421 transitions. [2022-11-02 20:46:03,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:03,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:03,792 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:03,792 INFO L175 Difference]: Start difference. First operand has 108 places, 127 transitions, 506 flow. Second operand 6 states and 421 transitions. [2022-11-02 20:46:03,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 195 transitions, 1100 flow [2022-11-02 20:46:03,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 195 transitions, 1100 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:46:03,807 INFO L231 Difference]: Finished difference. Result has 118 places, 174 transitions, 988 flow [2022-11-02 20:46:03,807 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=988, PETRI_PLACES=118, PETRI_TRANSITIONS=174} [2022-11-02 20:46:03,809 INFO L287 CegarLoopForPetriNet]: 89 programPoint places, 29 predicate places. [2022-11-02 20:46:03,810 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 174 transitions, 988 flow [2022-11-02 20:46:03,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:03,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:03,811 INFO L208 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] [2022-11-02 20:46:03,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:46:03,811 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 20:46:03,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:03,812 INFO L85 PathProgramCache]: Analyzing trace with hash -417702445, now seen corresponding path program 1 times [2022-11-02 20:46:03,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:03,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853205652] [2022-11-02 20:46:03,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:03,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:04,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:04,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:04,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853205652] [2022-11-02 20:46:04,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853205652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:04,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:04,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:46:04,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340195759] [2022-11-02 20:46:04,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:04,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:46:04,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:04,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:46:04,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:46:04,180 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 94 [2022-11-02 20:46:04,181 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 174 transitions, 988 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:04,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 94 [2022-11-02 20:46:04,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:04,675 INFO L130 PetriNetUnfolder]: 579/1435 cut-off events. [2022-11-02 20:46:04,675 INFO L131 PetriNetUnfolder]: For 1828/1837 co-relation queries the response was YES. [2022-11-02 20:46:04,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4464 conditions, 1435 events. 579/1435 cut-off events. For 1828/1837 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8486 event pairs, 179 based on Foata normal form. 0/1365 useless extension candidates. Maximal degree in co-relation 4412. Up to 1010 conditions per place. [2022-11-02 20:46:04,688 INFO L137 encePairwiseOnDemand]: 75/94 looper letters, 132 selfloop transitions, 83 changer transitions 4/269 dead transitions. [2022-11-02 20:46:04,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 269 transitions, 1892 flow [2022-11-02 20:46:04,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:46:04,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:46:04,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 456 transitions. [2022-11-02 20:46:04,690 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8085106382978723 [2022-11-02 20:46:04,690 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 456 transitions. [2022-11-02 20:46:04,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 456 transitions. [2022-11-02 20:46:04,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:04,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 456 transitions. [2022-11-02 20:46:04,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,696 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,700 INFO L175 Difference]: Start difference. First operand has 118 places, 174 transitions, 988 flow. Second operand 6 states and 456 transitions. [2022-11-02 20:46:04,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 269 transitions, 1892 flow [2022-11-02 20:46:04,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 269 transitions, 1828 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-02 20:46:04,759 INFO L231 Difference]: Finished difference. Result has 128 places, 243 transitions, 1680 flow [2022-11-02 20:46:04,760 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1680, PETRI_PLACES=128, PETRI_TRANSITIONS=243} [2022-11-02 20:46:04,761 INFO L287 CegarLoopForPetriNet]: 89 programPoint places, 39 predicate places. [2022-11-02 20:46:04,762 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 243 transitions, 1680 flow [2022-11-02 20:46:04,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:04,765 INFO L208 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] [2022-11-02 20:46:04,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:46:04,767 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 20:46:04,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:04,769 INFO L85 PathProgramCache]: Analyzing trace with hash -629291792, now seen corresponding path program 1 times [2022-11-02 20:46:04,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:04,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713760884] [2022-11-02 20:46:04,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:04,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:04,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:04,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:04,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713760884] [2022-11-02 20:46:04,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713760884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:04,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:04,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:46:04,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694982288] [2022-11-02 20:46:04,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:04,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:46:04,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:04,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:46:04,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:46:04,878 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 94 [2022-11-02 20:46:04,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 243 transitions, 1680 flow. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:04,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 94 [2022-11-02 20:46:04,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:04,945 INFO L130 PetriNetUnfolder]: 40/222 cut-off events. [2022-11-02 20:46:04,945 INFO L131 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2022-11-02 20:46:04,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 222 events. 40/222 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 603 event pairs, 5 based on Foata normal form. 2/213 useless extension candidates. Maximal degree in co-relation 533. Up to 54 conditions per place. [2022-11-02 20:46:04,947 INFO L137 encePairwiseOnDemand]: 90/94 looper letters, 7 selfloop transitions, 4 changer transitions 0/103 dead transitions. [2022-11-02 20:46:04,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 103 transitions, 464 flow [2022-11-02 20:46:04,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:46:04,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:46:04,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2022-11-02 20:46:04,949 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9184397163120568 [2022-11-02 20:46:04,949 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2022-11-02 20:46:04,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2022-11-02 20:46:04,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:04,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2022-11-02 20:46:04,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,952 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,952 INFO L175 Difference]: Start difference. First operand has 128 places, 243 transitions, 1680 flow. Second operand 3 states and 259 transitions. [2022-11-02 20:46:04,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 103 transitions, 464 flow [2022-11-02 20:46:04,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 103 transitions, 338 flow, removed 33 selfloop flow, removed 30 redundant places. [2022-11-02 20:46:04,957 INFO L231 Difference]: Finished difference. Result has 97 places, 103 transitions, 324 flow [2022-11-02 20:46:04,957 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=97, PETRI_TRANSITIONS=103} [2022-11-02 20:46:04,960 INFO L287 CegarLoopForPetriNet]: 89 programPoint places, 8 predicate places. [2022-11-02 20:46:04,960 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 103 transitions, 324 flow [2022-11-02 20:46:04,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:04,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:04,961 INFO L208 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] [2022-11-02 20:46:04,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:46:04,962 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 20:46:04,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:04,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2065004344, now seen corresponding path program 1 times [2022-11-02 20:46:04,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:04,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71514891] [2022-11-02 20:46:04,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:04,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:05,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:05,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71514891] [2022-11-02 20:46:05,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71514891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:05,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:05,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:46:05,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650635690] [2022-11-02 20:46:05,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:05,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:46:05,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:05,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:46:05,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:46:05,316 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 94 [2022-11-02 20:46:05,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 103 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 59.333333333333336) internal successors, (356), 6 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:05,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:05,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 94 [2022-11-02 20:46:05,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:05,568 INFO L130 PetriNetUnfolder]: 119/407 cut-off events. [2022-11-02 20:46:05,568 INFO L131 PetriNetUnfolder]: For 123/124 co-relation queries the response was YES. [2022-11-02 20:46:05,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1019 conditions, 407 events. 119/407 cut-off events. For 123/124 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1563 event pairs, 17 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 973. Up to 186 conditions per place. [2022-11-02 20:46:05,571 INFO L137 encePairwiseOnDemand]: 84/94 looper letters, 71 selfloop transitions, 25 changer transitions 11/158 dead transitions. [2022-11-02 20:46:05,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 158 transitions, 744 flow [2022-11-02 20:46:05,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:46:05,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:46:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 417 transitions. [2022-11-02 20:46:05,573 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7393617021276596 [2022-11-02 20:46:05,573 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 417 transitions. [2022-11-02 20:46:05,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 417 transitions. [2022-11-02 20:46:05,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:05,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 417 transitions. [2022-11-02 20:46:05,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:05,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:05,576 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:05,576 INFO L175 Difference]: Start difference. First operand has 97 places, 103 transitions, 324 flow. Second operand 6 states and 417 transitions. [2022-11-02 20:46:05,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 158 transitions, 744 flow [2022-11-02 20:46:05,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 158 transitions, 740 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:46:05,581 INFO L231 Difference]: Finished difference. Result has 106 places, 123 transitions, 536 flow [2022-11-02 20:46:05,581 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=536, PETRI_PLACES=106, PETRI_TRANSITIONS=123} [2022-11-02 20:46:05,582 INFO L287 CegarLoopForPetriNet]: 89 programPoint places, 17 predicate places. [2022-11-02 20:46:05,582 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 123 transitions, 536 flow [2022-11-02 20:46:05,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.333333333333336) internal successors, (356), 6 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:05,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:05,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:05,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:46:05,583 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 20:46:05,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:05,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1768430602, now seen corresponding path program 1 times [2022-11-02 20:46:05,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:05,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914044211] [2022-11-02 20:46:05,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:05,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:06,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:06,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914044211] [2022-11-02 20:46:06,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914044211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:06,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:06,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:46:06,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950926102] [2022-11-02 20:46:06,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:06,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:46:06,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:06,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:46:06,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:46:06,098 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 94 [2022-11-02 20:46:06,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 123 transitions, 536 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:06,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:06,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 94 [2022-11-02 20:46:06,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:06,538 INFO L130 PetriNetUnfolder]: 148/481 cut-off events. [2022-11-02 20:46:06,539 INFO L131 PetriNetUnfolder]: For 471/471 co-relation queries the response was YES. [2022-11-02 20:46:06,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1464 conditions, 481 events. 148/481 cut-off events. For 471/471 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1925 event pairs, 2 based on Foata normal form. 11/492 useless extension candidates. Maximal degree in co-relation 1410. Up to 195 conditions per place. [2022-11-02 20:46:06,542 INFO L137 encePairwiseOnDemand]: 84/94 looper letters, 94 selfloop transitions, 29 changer transitions 16/179 dead transitions. [2022-11-02 20:46:06,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 179 transitions, 1098 flow [2022-11-02 20:46:06,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:46:06,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:46:06,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 548 transitions. [2022-11-02 20:46:06,545 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5829787234042553 [2022-11-02 20:46:06,545 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 548 transitions. [2022-11-02 20:46:06,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 548 transitions. [2022-11-02 20:46:06,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:06,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 548 transitions. [2022-11-02 20:46:06,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 54.8) internal successors, (548), 10 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:06,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:06,552 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:06,552 INFO L175 Difference]: Start difference. First operand has 106 places, 123 transitions, 536 flow. Second operand 10 states and 548 transitions. [2022-11-02 20:46:06,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 179 transitions, 1098 flow [2022-11-02 20:46:06,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 179 transitions, 1080 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-02 20:46:06,560 INFO L231 Difference]: Finished difference. Result has 114 places, 119 transitions, 552 flow [2022-11-02 20:46:06,560 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=552, PETRI_PLACES=114, PETRI_TRANSITIONS=119} [2022-11-02 20:46:06,561 INFO L287 CegarLoopForPetriNet]: 89 programPoint places, 25 predicate places. [2022-11-02 20:46:06,561 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 119 transitions, 552 flow [2022-11-02 20:46:06,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:06,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:06,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:06,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:46:06,562 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 20:46:06,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:06,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1165736224, now seen corresponding path program 1 times [2022-11-02 20:46:06,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:06,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772123771] [2022-11-02 20:46:06,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:06,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:07,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:07,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:07,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772123771] [2022-11-02 20:46:07,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772123771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:07,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:07,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:46:07,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199267610] [2022-11-02 20:46:07,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:07,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:46:07,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:07,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:46:07,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:46:07,399 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 94 [2022-11-02 20:46:07,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 119 transitions, 552 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:07,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:07,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 94 [2022-11-02 20:46:07,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:07,897 INFO L130 PetriNetUnfolder]: 108/390 cut-off events. [2022-11-02 20:46:07,898 INFO L131 PetriNetUnfolder]: For 329/330 co-relation queries the response was YES. [2022-11-02 20:46:07,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 390 events. 108/390 cut-off events. For 329/330 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1367 event pairs, 30 based on Foata normal form. 5/393 useless extension candidates. Maximal degree in co-relation 1187. Up to 199 conditions per place. [2022-11-02 20:46:07,901 INFO L137 encePairwiseOnDemand]: 81/94 looper letters, 81 selfloop transitions, 26 changer transitions 13/163 dead transitions. [2022-11-02 20:46:07,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 163 transitions, 924 flow [2022-11-02 20:46:07,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:46:07,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:46:07,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 582 transitions. [2022-11-02 20:46:07,904 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6191489361702127 [2022-11-02 20:46:07,905 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 582 transitions. [2022-11-02 20:46:07,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 582 transitions. [2022-11-02 20:46:07,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:07,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 582 transitions. [2022-11-02 20:46:07,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 58.2) internal successors, (582), 10 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:07,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:07,910 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:07,910 INFO L175 Difference]: Start difference. First operand has 114 places, 119 transitions, 552 flow. Second operand 10 states and 582 transitions. [2022-11-02 20:46:07,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 163 transitions, 924 flow [2022-11-02 20:46:07,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 163 transitions, 811 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-11-02 20:46:07,919 INFO L231 Difference]: Finished difference. Result has 114 places, 119 transitions, 517 flow [2022-11-02 20:46:07,920 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=517, PETRI_PLACES=114, PETRI_TRANSITIONS=119} [2022-11-02 20:46:07,923 INFO L287 CegarLoopForPetriNet]: 89 programPoint places, 25 predicate places. [2022-11-02 20:46:07,924 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 119 transitions, 517 flow [2022-11-02 20:46:07,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:07,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:07,925 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:07,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:46:07,925 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 20:46:07,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:07,926 INFO L85 PathProgramCache]: Analyzing trace with hash 90981052, now seen corresponding path program 2 times [2022-11-02 20:46:07,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:07,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415684613] [2022-11-02 20:46:07,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:07,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:08,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:08,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415684613] [2022-11-02 20:46:08,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415684613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:08,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:08,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:46:08,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247378630] [2022-11-02 20:46:08,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:08,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:46:08,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:08,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:46:08,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:46:08,460 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 94 [2022-11-02 20:46:08,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 119 transitions, 517 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:08,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 94 [2022-11-02 20:46:08,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:08,958 INFO L130 PetriNetUnfolder]: 156/513 cut-off events. [2022-11-02 20:46:08,959 INFO L131 PetriNetUnfolder]: For 511/512 co-relation queries the response was YES. [2022-11-02 20:46:08,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1629 conditions, 513 events. 156/513 cut-off events. For 511/512 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2120 event pairs, 24 based on Foata normal form. 10/521 useless extension candidates. Maximal degree in co-relation 1569. Up to 220 conditions per place. [2022-11-02 20:46:08,962 INFO L137 encePairwiseOnDemand]: 85/94 looper letters, 58 selfloop transitions, 4 changer transitions 112/217 dead transitions. [2022-11-02 20:46:08,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 217 transitions, 1343 flow [2022-11-02 20:46:08,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:46:08,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:46:08,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 587 transitions. [2022-11-02 20:46:08,965 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.624468085106383 [2022-11-02 20:46:08,965 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 587 transitions. [2022-11-02 20:46:08,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 587 transitions. [2022-11-02 20:46:08,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:08,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 587 transitions. [2022-11-02 20:46:08,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,970 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,970 INFO L175 Difference]: Start difference. First operand has 114 places, 119 transitions, 517 flow. Second operand 10 states and 587 transitions. [2022-11-02 20:46:08,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 217 transitions, 1343 flow [2022-11-02 20:46:08,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 217 transitions, 1267 flow, removed 1 selfloop flow, removed 9 redundant places. [2022-11-02 20:46:08,978 INFO L231 Difference]: Finished difference. Result has 118 places, 103 transitions, 414 flow [2022-11-02 20:46:08,979 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=414, PETRI_PLACES=118, PETRI_TRANSITIONS=103} [2022-11-02 20:46:08,980 INFO L287 CegarLoopForPetriNet]: 89 programPoint places, 29 predicate places. [2022-11-02 20:46:08,981 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 103 transitions, 414 flow [2022-11-02 20:46:08,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:08,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:08,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:08,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:46:08,982 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 20:46:08,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:08,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1669218380, now seen corresponding path program 3 times [2022-11-02 20:46:08,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:08,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198343746] [2022-11-02 20:46:08,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:08,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:09,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:09,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:09,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198343746] [2022-11-02 20:46:09,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198343746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:09,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:09,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:46:09,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182763470] [2022-11-02 20:46:09,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:09,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:46:09,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:09,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:46:09,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:46:09,585 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 94 [2022-11-02 20:46:09,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 103 transitions, 414 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:09,586 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:09,586 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 94 [2022-11-02 20:46:09,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:10,109 INFO L130 PetriNetUnfolder]: 91/344 cut-off events. [2022-11-02 20:46:10,109 INFO L131 PetriNetUnfolder]: For 503/503 co-relation queries the response was YES. [2022-11-02 20:46:10,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1050 conditions, 344 events. 91/344 cut-off events. For 503/503 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1122 event pairs, 24 based on Foata normal form. 10/352 useless extension candidates. Maximal degree in co-relation 986. Up to 149 conditions per place. [2022-11-02 20:46:10,112 INFO L137 encePairwiseOnDemand]: 84/94 looper letters, 71 selfloop transitions, 11 changer transitions 43/168 dead transitions. [2022-11-02 20:46:10,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 168 transitions, 917 flow [2022-11-02 20:46:10,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:46:10,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 20:46:10,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 629 transitions. [2022-11-02 20:46:10,115 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6083172147001934 [2022-11-02 20:46:10,115 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 629 transitions. [2022-11-02 20:46:10,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 629 transitions. [2022-11-02 20:46:10,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:10,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 629 transitions. [2022-11-02 20:46:10,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 57.18181818181818) internal successors, (629), 11 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:10,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:10,121 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:10,121 INFO L175 Difference]: Start difference. First operand has 118 places, 103 transitions, 414 flow. Second operand 11 states and 629 transitions. [2022-11-02 20:46:10,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 168 transitions, 917 flow [2022-11-02 20:46:10,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 168 transitions, 836 flow, removed 32 selfloop flow, removed 9 redundant places. [2022-11-02 20:46:10,128 INFO L231 Difference]: Finished difference. Result has 118 places, 103 transitions, 395 flow [2022-11-02 20:46:10,129 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=395, PETRI_PLACES=118, PETRI_TRANSITIONS=103} [2022-11-02 20:46:10,130 INFO L287 CegarLoopForPetriNet]: 89 programPoint places, 29 predicate places. [2022-11-02 20:46:10,130 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 103 transitions, 395 flow [2022-11-02 20:46:10,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:10,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:10,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:10,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:46:10,131 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 20:46:10,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:10,132 INFO L85 PathProgramCache]: Analyzing trace with hash 584674568, now seen corresponding path program 4 times [2022-11-02 20:46:10,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:10,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128370098] [2022-11-02 20:46:10,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:10,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:10,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:10,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:10,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128370098] [2022-11-02 20:46:10,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128370098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:10,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:10,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:46:10,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368039622] [2022-11-02 20:46:10,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:10,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:46:10,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:10,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:46:10,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:46:10,644 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 94 [2022-11-02 20:46:10,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 103 transitions, 395 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:10,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:10,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 94 [2022-11-02 20:46:10,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:11,092 INFO L130 PetriNetUnfolder]: 108/385 cut-off events. [2022-11-02 20:46:11,092 INFO L131 PetriNetUnfolder]: For 485/485 co-relation queries the response was YES. [2022-11-02 20:46:11,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 385 events. 108/385 cut-off events. For 485/485 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1338 event pairs, 38 based on Foata normal form. 10/392 useless extension candidates. Maximal degree in co-relation 1136. Up to 109 conditions per place. [2022-11-02 20:46:11,094 INFO L137 encePairwiseOnDemand]: 85/94 looper letters, 49 selfloop transitions, 5 changer transitions 77/174 dead transitions. [2022-11-02 20:46:11,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 174 transitions, 1007 flow [2022-11-02 20:46:11,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:46:11,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:46:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 568 transitions. [2022-11-02 20:46:11,097 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6042553191489362 [2022-11-02 20:46:11,097 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 568 transitions. [2022-11-02 20:46:11,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 568 transitions. [2022-11-02 20:46:11,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:11,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 568 transitions. [2022-11-02 20:46:11,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 56.8) internal successors, (568), 10 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:11,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:11,101 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:11,101 INFO L175 Difference]: Start difference. First operand has 118 places, 103 transitions, 395 flow. Second operand 10 states and 568 transitions. [2022-11-02 20:46:11,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 174 transitions, 1007 flow [2022-11-02 20:46:11,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 174 transitions, 947 flow, removed 11 selfloop flow, removed 10 redundant places. [2022-11-02 20:46:11,107 INFO L231 Difference]: Finished difference. Result has 119 places, 97 transitions, 362 flow [2022-11-02 20:46:11,108 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=362, PETRI_PLACES=119, PETRI_TRANSITIONS=97} [2022-11-02 20:46:11,108 INFO L287 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2022-11-02 20:46:11,108 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 97 transitions, 362 flow [2022-11-02 20:46:11,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:11,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:11,109 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:11,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:46:11,109 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 20:46:11,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:11,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1693605260, now seen corresponding path program 5 times [2022-11-02 20:46:11,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:11,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922139228] [2022-11-02 20:46:11,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:11,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:11,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:11,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:11,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922139228] [2022-11-02 20:46:11,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922139228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:11,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:11,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 20:46:11,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085884331] [2022-11-02 20:46:11,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:11,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:46:11,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:11,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:46:11,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:46:11,673 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 94 [2022-11-02 20:46:11,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 97 transitions, 362 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:11,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:11,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 94 [2022-11-02 20:46:11,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:12,048 INFO L130 PetriNetUnfolder]: 31/167 cut-off events. [2022-11-02 20:46:12,048 INFO L131 PetriNetUnfolder]: For 211/213 co-relation queries the response was YES. [2022-11-02 20:46:12,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 167 events. 31/167 cut-off events. For 211/213 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 289 event pairs, 0 based on Foata normal form. 12/179 useless extension candidates. Maximal degree in co-relation 473. Up to 35 conditions per place. [2022-11-02 20:46:12,049 INFO L137 encePairwiseOnDemand]: 85/94 looper letters, 0 selfloop transitions, 0 changer transitions 132/132 dead transitions. [2022-11-02 20:46:12,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 132 transitions, 680 flow [2022-11-02 20:46:12,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:46:12,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:46:12,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 552 transitions. [2022-11-02 20:46:12,052 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5872340425531914 [2022-11-02 20:46:12,052 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 552 transitions. [2022-11-02 20:46:12,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 552 transitions. [2022-11-02 20:46:12,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:12,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 552 transitions. [2022-11-02 20:46:12,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 55.2) internal successors, (552), 10 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:12,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:12,057 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:12,057 INFO L175 Difference]: Start difference. First operand has 119 places, 97 transitions, 362 flow. Second operand 10 states and 552 transitions. [2022-11-02 20:46:12,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 132 transitions, 680 flow [2022-11-02 20:46:12,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 132 transitions, 612 flow, removed 24 selfloop flow, removed 11 redundant places. [2022-11-02 20:46:12,061 INFO L231 Difference]: Finished difference. Result has 113 places, 0 transitions, 0 flow [2022-11-02 20:46:12,061 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=113, PETRI_TRANSITIONS=0} [2022-11-02 20:46:12,062 INFO L287 CegarLoopForPetriNet]: 89 programPoint places, 24 predicate places. [2022-11-02 20:46:12,062 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 0 transitions, 0 flow [2022-11-02 20:46:12,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:12,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-11-02 20:46:12,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-11-02 20:46:12,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-11-02 20:46:12,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2022-11-02 20:46:12,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-11-02 20:46:12,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-11-02 20:46:12,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-11-02 20:46:12,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-11-02 20:46:12,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:46:12,068 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:12,073 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:46:12,073 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:46:12,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:46:12 BasicIcfg [2022-11-02 20:46:12,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:46:12,079 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:46:12,079 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:46:12,079 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:46:12,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:00" (3/4) ... [2022-11-02 20:46:12,082 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:46:12,089 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-02 20:46:12,093 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-02 20:46:12,094 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 20:46:12,094 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:46:12,132 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:46:12,132 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:46:12,133 INFO L158 Benchmark]: Toolchain (without parser) took 13627.17ms. Allocated memory was 104.9MB in the beginning and 253.8MB in the end (delta: 148.9MB). Free memory was 68.3MB in the beginning and 157.6MB in the end (delta: -89.3MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2022-11-02 20:46:12,133 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory was 75.9MB in the beginning and 75.8MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:46:12,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 756.77ms. Allocated memory is still 104.9MB. Free memory was 68.1MB in the beginning and 62.1MB in the end (delta: 6.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:46:12,134 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.50ms. Allocated memory is still 104.9MB. Free memory was 62.1MB in the beginning and 59.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:46:12,134 INFO L158 Benchmark]: Boogie Preprocessor took 56.68ms. Allocated memory is still 104.9MB. Free memory was 59.6MB in the beginning and 57.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:46:12,134 INFO L158 Benchmark]: RCFGBuilder took 604.86ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 57.9MB in the beginning and 108.4MB in the end (delta: -50.6MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2022-11-02 20:46:12,135 INFO L158 Benchmark]: TraceAbstraction took 12068.38ms. Allocated memory was 140.5MB in the beginning and 253.8MB in the end (delta: 113.2MB). Free memory was 107.4MB in the beginning and 159.8MB in the end (delta: -52.4MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2022-11-02 20:46:12,135 INFO L158 Benchmark]: Witness Printer took 53.30ms. Allocated memory is still 253.8MB. Free memory was 159.8MB in the beginning and 157.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:46:12,138 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory was 75.9MB in the beginning and 75.8MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 756.77ms. Allocated memory is still 104.9MB. Free memory was 68.1MB in the beginning and 62.1MB in the end (delta: 6.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.50ms. Allocated memory is still 104.9MB. Free memory was 62.1MB in the beginning and 59.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.68ms. Allocated memory is still 104.9MB. Free memory was 59.6MB in the beginning and 57.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 604.86ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 57.9MB in the beginning and 108.4MB in the end (delta: -50.6MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * TraceAbstraction took 12068.38ms. Allocated memory was 140.5MB in the beginning and 253.8MB in the end (delta: 113.2MB). Free memory was 107.4MB in the beginning and 159.8MB in the end (delta: -52.4MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. * Witness Printer took 53.30ms. Allocated memory is still 253.8MB. Free memory was 159.8MB in the beginning and 157.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 933]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 121 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 761 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 761 mSDsluCounter, 303 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 103 mSDsCounter, 417 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2726 IncrementalHoareTripleChecker+Invalid, 3143 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 417 mSolverCounterUnsat, 220 mSDtfsCounter, 2726 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1680occurred in iteration=4, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 721 NumberOfCodeBlocks, 721 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 709 ConstructedInterpolants, 0 QuantifiedInterpolants, 4239 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 20:46:12,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb40131-e062-482e-a1a0-f8d463bdde1b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE