./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/test-easy10.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/test-easy10.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN --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 5b38e7cb0150abfd3f300ad6ccdd66bb35d80de0668e553c35b4b9d13b84c85b --- 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-6b4ec56 [2022-11-20 12:48:27,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:48:27,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:48:27,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:48:27,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:48:27,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:48:27,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:48:27,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:48:27,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:48:27,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:48:27,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:48:27,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:48:27,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:48:27,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:48:27,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:48:27,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:48:27,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:48:27,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:48:27,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:48:27,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:48:27,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:48:27,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:48:27,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:48:27,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:48:27,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:48:27,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:48:27,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:48:27,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:48:27,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:48:27,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:48:27,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:48:27,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:48:27,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:48:27,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:48:27,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:48:27,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:48:27,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:48:27,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:48:27,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:48:27,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:48:27,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:48:27,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:48:27,423 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:48:27,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:48:27,424 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:48:27,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:48:27,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:48:27,425 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:48:27,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:48:27,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:48:27,426 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:48:27,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:48:27,428 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:48:27,428 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:48:27,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:48:27,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:48:27,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:48:27,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:48:27,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:48:27,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:48:27,429 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:48:27,430 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:48:27,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:48:27,430 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:48:27,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:48:27,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:48:27,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:48:27,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:48:27,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:48:27,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:48:27,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:48:27,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:48:27,433 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:48:27,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:48:27,434 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:48:27,434 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:48:27,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:48:27,434 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_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b38e7cb0150abfd3f300ad6ccdd66bb35d80de0668e553c35b4b9d13b84c85b [2022-11-20 12:48:27,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:48:27,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:48:27,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:48:27,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:48:27,740 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:48:27,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/test-easy10.wvr.c [2022-11-20 12:48:30,813 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:48:31,006 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:48:31,006 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/sv-benchmarks/c/weaver/test-easy10.wvr.c [2022-11-20 12:48:31,013 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN/data/afc5db7c5/57731d3f334748358d7f0a257db4a86d/FLAG04c329769 [2022-11-20 12:48:31,028 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN/data/afc5db7c5/57731d3f334748358d7f0a257db4a86d [2022-11-20 12:48:31,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:48:31,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:48:31,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:48:31,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:48:31,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:48:31,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:48:31" (1/1) ... [2022-11-20 12:48:31,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620b50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31, skipping insertion in model container [2022-11-20 12:48:31,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:48:31" (1/1) ... [2022-11-20 12:48:31,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:48:31,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:48:31,262 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/sv-benchmarks/c/weaver/test-easy10.wvr.c[3907,3920] [2022-11-20 12:48:31,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:48:31,277 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:48:31,318 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/sv-benchmarks/c/weaver/test-easy10.wvr.c[3907,3920] [2022-11-20 12:48:31,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:48:31,335 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:48:31,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31 WrapperNode [2022-11-20 12:48:31,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:48:31,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:48:31,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:48:31,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:48:31,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31" (1/1) ... [2022-11-20 12:48:31,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31" (1/1) ... [2022-11-20 12:48:31,390 INFO L138 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 392 [2022-11-20 12:48:31,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:48:31,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:48:31,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:48:31,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:48:31,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31" (1/1) ... [2022-11-20 12:48:31,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31" (1/1) ... [2022-11-20 12:48:31,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31" (1/1) ... [2022-11-20 12:48:31,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31" (1/1) ... [2022-11-20 12:48:31,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31" (1/1) ... [2022-11-20 12:48:31,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31" (1/1) ... [2022-11-20 12:48:31,462 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31" (1/1) ... [2022-11-20 12:48:31,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31" (1/1) ... [2022-11-20 12:48:31,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:48:31,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:48:31,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:48:31,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:48:31,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31" (1/1) ... [2022-11-20 12:48:31,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:48:31,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:48:31,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:48:31,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9121bf5c-77bb-4573-85b4-c812f7df58cf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:48:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:48:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 12:48:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 12:48:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 12:48:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 12:48:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 12:48:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 12:48:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 12:48:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 12:48:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:48:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:48:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:48:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:48:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:48:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:48:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:48:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:48:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:48:31,558 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:48:31,767 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:48:31,769 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:48:32,417 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:48:32,757 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:48:32,758 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:48:32,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:48:32 BoogieIcfgContainer [2022-11-20 12:48:32,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:48:32,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:48:32,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:48:32,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:48:32,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:48:31" (1/3) ... [2022-11-20 12:48:32,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563ff12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:48:32, skipping insertion in model container [2022-11-20 12:48:32,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:48:31" (2/3) ... [2022-11-20 12:48:32,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563ff12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:48:32, skipping insertion in model container [2022-11-20 12:48:32,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:48:32" (3/3) ... [2022-11-20 12:48:32,771 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2022-11-20 12:48:32,780 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:48:32,792 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:48:32,792 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2022-11-20 12:48:32,792 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:48:32,887 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-20 12:48:32,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 268 places, 259 transitions, 550 flow [2022-11-20 12:48:33,077 INFO L130 PetriNetUnfolder]: 4/255 cut-off events. [2022-11-20 12:48:33,077 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 12:48:33,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 255 events. 4/255 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 305 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2022-11-20 12:48:33,086 INFO L82 GeneralOperation]: Start removeDead. Operand has 268 places, 259 transitions, 550 flow [2022-11-20 12:48:33,100 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 230 transitions, 484 flow [2022-11-20 12:48:33,124 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:48:33,132 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;@361118f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:48:33,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 108 error locations. [2022-11-20 12:48:33,153 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-20 12:48:33,156 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:48:33,156 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:48:33,157 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:33,157 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-20 12:48:33,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:33,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1433708834, now seen corresponding path program 1 times [2022-11-20 12:48:33,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:33,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224520204] [2022-11-20 12:48:33,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:33,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:33,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:33,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:33,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224520204] [2022-11-20 12:48:33,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224520204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:48:33,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:48:33,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:48:33,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292432740] [2022-11-20 12:48:33,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:48:33,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:48:33,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:33,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:48:33,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:48:33,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 259 [2022-11-20 12:48:33,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 230 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:33,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:48:33,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 259 [2022-11-20 12:48:33,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:48:36,414 INFO L130 PetriNetUnfolder]: 7777/12184 cut-off events. [2022-11-20 12:48:36,415 INFO L131 PetriNetUnfolder]: For 2065/2530 co-relation queries the response was YES. [2022-11-20 12:48:36,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24377 conditions, 12184 events. 7777/12184 cut-off events. For 2065/2530 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 77824 event pairs, 7776 based on Foata normal form. 1/12077 useless extension candidates. Maximal degree in co-relation 23828. Up to 10986 conditions per place. [2022-11-20 12:48:36,582 INFO L137 encePairwiseOnDemand]: 211/259 looper letters, 41 selfloop transitions, 2 changer transitions 1/184 dead transitions. [2022-11-20 12:48:36,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 184 transitions, 478 flow [2022-11-20 12:48:36,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:48:36,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:48:36,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 593 transitions. [2022-11-20 12:48:36,599 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7631917631917632 [2022-11-20 12:48:36,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 593 transitions. [2022-11-20 12:48:36,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 593 transitions. [2022-11-20 12:48:36,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:36,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 593 transitions. [2022-11-20 12:48:36,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.66666666666666) internal successors, (593), 3 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:36,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:36,620 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:36,622 INFO L175 Difference]: Start difference. First operand has 241 places, 230 transitions, 484 flow. Second operand 3 states and 593 transitions. [2022-11-20 12:48:36,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 184 transitions, 478 flow [2022-11-20 12:48:36,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 184 transitions, 462 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-20 12:48:36,640 INFO L231 Difference]: Finished difference. Result has 190 places, 183 transitions, 378 flow [2022-11-20 12:48:36,643 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=190, PETRI_TRANSITIONS=183} [2022-11-20 12:48:36,649 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -51 predicate places. [2022-11-20 12:48:36,650 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 183 transitions, 378 flow [2022-11-20 12:48:36,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:36,650 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:48:36,651 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:36,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:48:36,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-20 12:48:36,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:36,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1348131188, now seen corresponding path program 1 times [2022-11-20 12:48:36,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:36,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026600334] [2022-11-20 12:48:36,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:36,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:36,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:36,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:36,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026600334] [2022-11-20 12:48:36,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026600334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:48:36,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:48:36,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:48:36,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374892569] [2022-11-20 12:48:36,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:48:36,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:48:36,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:36,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:48:36,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:48:36,743 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 259 [2022-11-20 12:48:36,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 183 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:36,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:48:36,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 259 [2022-11-20 12:48:36,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:48:39,149 INFO L130 PetriNetUnfolder]: 7777/12182 cut-off events. [2022-11-20 12:48:39,150 INFO L131 PetriNetUnfolder]: For 400/865 co-relation queries the response was YES. [2022-11-20 12:48:39,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23574 conditions, 12182 events. 7777/12182 cut-off events. For 400/865 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 77917 event pairs, 7776 based on Foata normal form. 0/12076 useless extension candidates. Maximal degree in co-relation 23534. Up to 10986 conditions per place. [2022-11-20 12:48:39,261 INFO L137 encePairwiseOnDemand]: 256/259 looper letters, 41 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2022-11-20 12:48:39,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 182 transitions, 462 flow [2022-11-20 12:48:39,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:48:39,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:48:39,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2022-11-20 12:48:39,265 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7052767052767053 [2022-11-20 12:48:39,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2022-11-20 12:48:39,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2022-11-20 12:48:39,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:39,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2022-11-20 12:48:39,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 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) [2022-11-20 12:48:39,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:39,271 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:39,272 INFO L175 Difference]: Start difference. First operand has 190 places, 183 transitions, 378 flow. Second operand 3 states and 548 transitions. [2022-11-20 12:48:39,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 182 transitions, 462 flow [2022-11-20 12:48:39,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 182 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:48:39,280 INFO L231 Difference]: Finished difference. Result has 188 places, 182 transitions, 376 flow [2022-11-20 12:48:39,281 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=188, PETRI_TRANSITIONS=182} [2022-11-20 12:48:39,282 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -53 predicate places. [2022-11-20 12:48:39,282 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 182 transitions, 376 flow [2022-11-20 12:48:39,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:39,283 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:48:39,283 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:39,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:48:39,284 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-20 12:48:39,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:39,285 INFO L85 PathProgramCache]: Analyzing trace with hash -586291789, now seen corresponding path program 1 times [2022-11-20 12:48:39,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:39,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968394071] [2022-11-20 12:48:39,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:39,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:39,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:39,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:39,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968394071] [2022-11-20 12:48:39,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968394071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:48:39,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:48:39,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:48:39,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772767537] [2022-11-20 12:48:39,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:48:39,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:48:39,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:39,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:48:39,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:48:39,392 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 259 [2022-11-20 12:48:39,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 182 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:39,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:48:39,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 259 [2022-11-20 12:48:39,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:48:41,317 INFO L130 PetriNetUnfolder]: 7777/12181 cut-off events. [2022-11-20 12:48:41,317 INFO L131 PetriNetUnfolder]: For 400/865 co-relation queries the response was YES. [2022-11-20 12:48:41,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23573 conditions, 12181 events. 7777/12181 cut-off events. For 400/865 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 77733 event pairs, 7776 based on Foata normal form. 0/12076 useless extension candidates. Maximal degree in co-relation 23527. Up to 10986 conditions per place. [2022-11-20 12:48:41,435 INFO L137 encePairwiseOnDemand]: 256/259 looper letters, 41 selfloop transitions, 2 changer transitions 0/181 dead transitions. [2022-11-20 12:48:41,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 181 transitions, 460 flow [2022-11-20 12:48:41,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:48:41,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:48:41,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2022-11-20 12:48:41,439 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7052767052767053 [2022-11-20 12:48:41,440 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2022-11-20 12:48:41,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2022-11-20 12:48:41,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:41,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2022-11-20 12:48:41,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 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) [2022-11-20 12:48:41,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:41,446 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:41,446 INFO L175 Difference]: Start difference. First operand has 188 places, 182 transitions, 376 flow. Second operand 3 states and 548 transitions. [2022-11-20 12:48:41,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 181 transitions, 460 flow [2022-11-20 12:48:41,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 181 transitions, 456 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:48:41,454 INFO L231 Difference]: Finished difference. Result has 187 places, 181 transitions, 374 flow [2022-11-20 12:48:41,455 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=187, PETRI_TRANSITIONS=181} [2022-11-20 12:48:41,457 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -54 predicate places. [2022-11-20 12:48:41,457 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 181 transitions, 374 flow [2022-11-20 12:48:41,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:41,458 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:48:41,458 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:41,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:48:41,459 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-20 12:48:41,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:41,460 INFO L85 PathProgramCache]: Analyzing trace with hash 2111228194, now seen corresponding path program 1 times [2022-11-20 12:48:41,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:41,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905467529] [2022-11-20 12:48:41,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:41,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:41,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:41,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:41,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905467529] [2022-11-20 12:48:41,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905467529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:48:41,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:48:41,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:48:41,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831405626] [2022-11-20 12:48:41,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:48:41,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:48:41,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:41,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:48:41,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:48:41,567 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 259 [2022-11-20 12:48:41,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 181 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:41,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:48:41,569 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 259 [2022-11-20 12:48:41,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:48:43,327 INFO L130 PetriNetUnfolder]: 7777/12180 cut-off events. [2022-11-20 12:48:43,327 INFO L131 PetriNetUnfolder]: For 400/865 co-relation queries the response was YES. [2022-11-20 12:48:43,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23571 conditions, 12180 events. 7777/12180 cut-off events. For 400/865 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 77961 event pairs, 7776 based on Foata normal form. 0/12076 useless extension candidates. Maximal degree in co-relation 23519. Up to 10985 conditions per place. [2022-11-20 12:48:43,426 INFO L137 encePairwiseOnDemand]: 256/259 looper letters, 40 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2022-11-20 12:48:43,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 180 transitions, 456 flow [2022-11-20 12:48:43,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:48:43,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:48:43,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 547 transitions. [2022-11-20 12:48:43,428 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.703989703989704 [2022-11-20 12:48:43,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 547 transitions. [2022-11-20 12:48:43,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 547 transitions. [2022-11-20 12:48:43,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:43,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 547 transitions. [2022-11-20 12:48:43,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:43,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:43,434 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:43,434 INFO L175 Difference]: Start difference. First operand has 187 places, 181 transitions, 374 flow. Second operand 3 states and 547 transitions. [2022-11-20 12:48:43,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 180 transitions, 456 flow [2022-11-20 12:48:43,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 180 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:48:43,443 INFO L231 Difference]: Finished difference. Result has 186 places, 180 transitions, 372 flow [2022-11-20 12:48:43,443 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=186, PETRI_TRANSITIONS=180} [2022-11-20 12:48:43,445 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-11-20 12:48:43,445 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 180 transitions, 372 flow [2022-11-20 12:48:43,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:43,446 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:48:43,446 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:43,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:48:43,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-20 12:48:43,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:43,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1227986709, now seen corresponding path program 1 times [2022-11-20 12:48:43,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:43,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518967183] [2022-11-20 12:48:43,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:43,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:43,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:43,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:43,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518967183] [2022-11-20 12:48:43,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518967183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:48:43,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:48:43,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:48:43,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239065014] [2022-11-20 12:48:43,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:48:43,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:48:43,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:43,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:48:43,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:48:43,523 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 259 [2022-11-20 12:48:43,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 180 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:43,525 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:48:43,525 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 259 [2022-11-20 12:48:43,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:48:45,681 INFO L130 PetriNetUnfolder]: 8726/17152 cut-off events. [2022-11-20 12:48:45,682 INFO L131 PetriNetUnfolder]: For 449/979 co-relation queries the response was YES. [2022-11-20 12:48:45,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29927 conditions, 17152 events. 8726/17152 cut-off events. For 449/979 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 144760 event pairs, 2355 based on Foata normal form. 1/16673 useless extension candidates. Maximal degree in co-relation 29868. Up to 8887 conditions per place. [2022-11-20 12:48:45,811 INFO L137 encePairwiseOnDemand]: 251/259 looper letters, 60 selfloop transitions, 6 changer transitions 0/206 dead transitions. [2022-11-20 12:48:45,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 206 transitions, 560 flow [2022-11-20 12:48:45,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:48:45,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:48:45,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 581 transitions. [2022-11-20 12:48:45,814 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7477477477477478 [2022-11-20 12:48:45,830 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 581 transitions. [2022-11-20 12:48:45,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 581 transitions. [2022-11-20 12:48:45,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:45,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 581 transitions. [2022-11-20 12:48:45,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:45,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:45,835 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:45,835 INFO L175 Difference]: Start difference. First operand has 186 places, 180 transitions, 372 flow. Second operand 3 states and 581 transitions. [2022-11-20 12:48:45,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 206 transitions, 560 flow [2022-11-20 12:48:45,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 206 transitions, 556 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:48:45,839 INFO L231 Difference]: Finished difference. Result has 186 places, 182 transitions, 404 flow [2022-11-20 12:48:45,840 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=186, PETRI_TRANSITIONS=182} [2022-11-20 12:48:45,841 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-11-20 12:48:45,841 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 182 transitions, 404 flow [2022-11-20 12:48:45,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:45,841 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:48:45,842 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:45,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:48:45,842 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-20 12:48:45,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:45,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1020804430, now seen corresponding path program 1 times [2022-11-20 12:48:45,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:45,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574796982] [2022-11-20 12:48:45,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:45,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:45,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:45,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:45,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574796982] [2022-11-20 12:48:45,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574796982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:48:45,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:48:45,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:48:45,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202744419] [2022-11-20 12:48:45,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:48:45,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:48:45,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:45,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:48:45,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:48:45,911 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 259 [2022-11-20 12:48:45,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 182 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:45,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:48:45,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 259 [2022-11-20 12:48:45,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:48:47,622 INFO L130 PetriNetUnfolder]: 9643/15666 cut-off events. [2022-11-20 12:48:47,623 INFO L131 PetriNetUnfolder]: For 5401/6014 co-relation queries the response was YES. [2022-11-20 12:48:47,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33426 conditions, 15666 events. 9643/15666 cut-off events. For 5401/6014 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 112154 event pairs, 2672 based on Foata normal form. 1/15538 useless extension candidates. Maximal degree in co-relation 25108. Up to 9459 conditions per place. [2022-11-20 12:48:47,740 INFO L137 encePairwiseOnDemand]: 251/259 looper letters, 68 selfloop transitions, 6 changer transitions 0/212 dead transitions. [2022-11-20 12:48:47,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 212 transitions, 640 flow [2022-11-20 12:48:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:48:47,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:48:47,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 581 transitions. [2022-11-20 12:48:47,743 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7477477477477478 [2022-11-20 12:48:47,743 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 581 transitions. [2022-11-20 12:48:47,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 581 transitions. [2022-11-20 12:48:47,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:47,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 581 transitions. [2022-11-20 12:48:47,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:47,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:47,748 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:47,748 INFO L175 Difference]: Start difference. First operand has 186 places, 182 transitions, 404 flow. Second operand 3 states and 581 transitions. [2022-11-20 12:48:47,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 212 transitions, 640 flow [2022-11-20 12:48:47,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 212 transitions, 620 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:48:47,758 INFO L231 Difference]: Finished difference. Result has 186 places, 184 transitions, 428 flow [2022-11-20 12:48:47,758 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=186, PETRI_TRANSITIONS=184} [2022-11-20 12:48:47,761 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-11-20 12:48:47,761 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 184 transitions, 428 flow [2022-11-20 12:48:47,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:47,763 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:48:47,763 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:47,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:48:47,763 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-20 12:48:47,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:47,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1920273930, now seen corresponding path program 1 times [2022-11-20 12:48:47,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:47,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356222666] [2022-11-20 12:48:47,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:47,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:47,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:47,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:47,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356222666] [2022-11-20 12:48:47,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356222666] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:48:47,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:48:47,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:48:47,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310046837] [2022-11-20 12:48:47,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:48:47,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:48:47,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:47,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:48:47,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:48:47,840 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 259 [2022-11-20 12:48:47,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 184 transitions, 428 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:47,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:48:47,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 259 [2022-11-20 12:48:47,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:48:50,286 INFO L130 PetriNetUnfolder]: 11552/17767 cut-off events. [2022-11-20 12:48:50,286 INFO L131 PetriNetUnfolder]: For 5951/6569 co-relation queries the response was YES. [2022-11-20 12:48:50,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41477 conditions, 17767 events. 11552/17767 cut-off events. For 5951/6569 co-relation queries the response was YES. Maximal size of possible extension queue 687. Compared 119120 event pairs, 7587 based on Foata normal form. 0/17611 useless extension candidates. Maximal degree in co-relation 29056. Up to 11873 conditions per place. [2022-11-20 12:48:50,411 INFO L137 encePairwiseOnDemand]: 251/259 looper letters, 74 selfloop transitions, 6 changer transitions 0/216 dead transitions. [2022-11-20 12:48:50,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 216 transitions, 691 flow [2022-11-20 12:48:50,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:48:50,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:48:50,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2022-11-20 12:48:50,413 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.749034749034749 [2022-11-20 12:48:50,414 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2022-11-20 12:48:50,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2022-11-20 12:48:50,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:50,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2022-11-20 12:48:50,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 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) [2022-11-20 12:48:50,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:50,418 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:50,418 INFO L175 Difference]: Start difference. First operand has 186 places, 184 transitions, 428 flow. Second operand 3 states and 582 transitions. [2022-11-20 12:48:50,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 216 transitions, 691 flow [2022-11-20 12:48:50,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 216 transitions, 671 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:48:50,485 INFO L231 Difference]: Finished difference. Result has 186 places, 186 transitions, 452 flow [2022-11-20 12:48:50,486 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=452, PETRI_PLACES=186, PETRI_TRANSITIONS=186} [2022-11-20 12:48:50,486 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-11-20 12:48:50,486 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 186 transitions, 452 flow [2022-11-20 12:48:50,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:50,487 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:48:50,487 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:50,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:48:50,488 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-20 12:48:50,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:50,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1452662967, now seen corresponding path program 1 times [2022-11-20 12:48:50,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:50,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354456208] [2022-11-20 12:48:50,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:50,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:50,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:50,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:50,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354456208] [2022-11-20 12:48:50,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354456208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:48:50,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:48:50,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:48:50,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849852539] [2022-11-20 12:48:50,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:48:50,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:48:50,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:50,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:48:50,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:48:50,527 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 259 [2022-11-20 12:48:50,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 186 transitions, 452 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:50,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:48:50,528 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 259 [2022-11-20 12:48:50,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:48:53,598 INFO L130 PetriNetUnfolder]: 14384/22411 cut-off events. [2022-11-20 12:48:53,598 INFO L131 PetriNetUnfolder]: For 12739/13656 co-relation queries the response was YES. [2022-11-20 12:48:53,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55600 conditions, 22411 events. 14384/22411 cut-off events. For 12739/13656 co-relation queries the response was YES. Maximal size of possible extension queue 900. Compared 158475 event pairs, 8832 based on Foata normal form. 2/22177 useless extension candidates. Maximal degree in co-relation 34932. Up to 13727 conditions per place. [2022-11-20 12:48:53,754 INFO L137 encePairwiseOnDemand]: 251/259 looper letters, 82 selfloop transitions, 5 changer transitions 11/224 dead transitions. [2022-11-20 12:48:53,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 224 transitions, 763 flow [2022-11-20 12:48:53,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:48:53,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:48:53,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2022-11-20 12:48:53,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7503217503217503 [2022-11-20 12:48:53,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 583 transitions. [2022-11-20 12:48:53,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 583 transitions. [2022-11-20 12:48:53,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:48:53,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 583 transitions. [2022-11-20 12:48:53,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:53,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:53,762 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:53,762 INFO L175 Difference]: Start difference. First operand has 186 places, 186 transitions, 452 flow. Second operand 3 states and 583 transitions. [2022-11-20 12:48:53,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 224 transitions, 763 flow [2022-11-20 12:48:53,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 224 transitions, 743 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:48:53,772 INFO L231 Difference]: Finished difference. Result has 186 places, 177 transitions, 443 flow [2022-11-20 12:48:53,773 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=443, PETRI_PLACES=186, PETRI_TRANSITIONS=177} [2022-11-20 12:48:53,773 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -55 predicate places. [2022-11-20 12:48:53,774 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 177 transitions, 443 flow [2022-11-20 12:48:53,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:53,774 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:48:53,775 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:48:53,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:48:53,775 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-20 12:48:53,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:48:53,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1662277585, now seen corresponding path program 1 times [2022-11-20 12:48:53,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:48:53,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218098411] [2022-11-20 12:48:53,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:48:53,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:48:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:48:54,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:48:54,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:48:54,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218098411] [2022-11-20 12:48:54,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218098411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:48:54,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:48:54,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:48:54,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708164934] [2022-11-20 12:48:54,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:48:54,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:48:54,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:48:54,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:48:54,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:48:54,547 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 259 [2022-11-20 12:48:54,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 177 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 152.16666666666666) internal successors, (913), 6 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:48:54,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:48:54,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 259 [2022-11-20 12:48:54,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:49:11,573 INFO L130 PetriNetUnfolder]: 113528/153991 cut-off events. [2022-11-20 12:49:11,573 INFO L131 PetriNetUnfolder]: For 102187/102187 co-relation queries the response was YES. [2022-11-20 12:49:11,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401623 conditions, 153991 events. 113528/153991 cut-off events. For 102187/102187 co-relation queries the response was YES. Maximal size of possible extension queue 3676. Compared 976527 event pairs, 22252 based on Foata normal form. 0/153140 useless extension candidates. Maximal degree in co-relation 138723. Up to 54723 conditions per place. [2022-11-20 12:49:12,495 INFO L137 encePairwiseOnDemand]: 254/259 looper letters, 229 selfloop transitions, 4 changer transitions 1/336 dead transitions. [2022-11-20 12:49:12,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 336 transitions, 1517 flow [2022-11-20 12:49:12,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:49:12,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:49:12,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1055 transitions. [2022-11-20 12:49:12,500 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6788931788931789 [2022-11-20 12:49:12,500 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1055 transitions. [2022-11-20 12:49:12,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1055 transitions. [2022-11-20 12:49:12,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:49:12,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1055 transitions. [2022-11-20 12:49:12,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 175.83333333333334) internal successors, (1055), 6 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:12,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 259.0) internal successors, (1813), 7 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:12,511 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 259.0) internal successors, (1813), 7 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:12,511 INFO L175 Difference]: Start difference. First operand has 186 places, 177 transitions, 443 flow. Second operand 6 states and 1055 transitions. [2022-11-20 12:49:12,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 336 transitions, 1517 flow [2022-11-20 12:49:12,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 336 transitions, 1475 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:49:12,562 INFO L231 Difference]: Finished difference. Result has 177 places, 175 transitions, 437 flow [2022-11-20 12:49:12,562 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=437, PETRI_PLACES=177, PETRI_TRANSITIONS=175} [2022-11-20 12:49:12,563 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -64 predicate places. [2022-11-20 12:49:12,563 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 175 transitions, 437 flow [2022-11-20 12:49:12,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.16666666666666) internal successors, (913), 6 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:12,564 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:49:12,564 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:12,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:49:12,565 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 104 more)] === [2022-11-20 12:49:12,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:12,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1489536421, now seen corresponding path program 1 times [2022-11-20 12:49:12,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:12,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77052608] [2022-11-20 12:49:12,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:12,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:13,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:13,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77052608] [2022-11-20 12:49:13,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77052608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:13,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:13,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:49:13,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405130723] [2022-11-20 12:49:13,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:13,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:49:13,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:13,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:49:13,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:49:13,347 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 259 [2022-11-20 12:49:13,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 175 transitions, 437 flow. Second operand has 6 states, 6 states have (on average 154.16666666666666) internal successors, (925), 6 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:13,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:49:13,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 259 [2022-11-20 12:49:13,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand