./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d24e1fe59577ae07a5b7a898c9dc79f871eafbb8fdf9529a0c24eed9c094f3d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:12:33,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:12:33,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:12:33,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:12:33,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:12:33,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:12:33,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:12:33,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:12:33,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:12:33,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:12:33,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:12:33,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:12:33,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:12:33,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:12:33,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:12:33,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:12:33,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:12:33,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:12:33,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:12:33,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:12:33,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:12:33,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:12:33,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:12:33,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:12:33,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:12:33,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:12:33,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:12:33,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:12:33,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:12:33,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:12:33,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:12:33,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:12:33,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:12:33,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:12:33,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:12:33,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:12:33,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:12:33,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:12:33,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:12:33,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:12:33,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:12:33,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 17:12:33,385 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:12:33,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:12:33,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:12:33,386 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:12:33,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:12:33,387 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:12:33,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:12:33,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:12:33,388 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:12:33,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:12:33,389 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:12:33,389 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:12:33,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:12:33,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:12:33,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:12:33,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:12:33,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:12:33,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:12:33,391 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 17:12:33,391 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:12:33,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:12:33,392 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:12:33,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:12:33,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:12:33,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:12:33,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:12:33,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:12:33,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:12:33,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:12:33,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:12:33,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:12:33,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:12:33,395 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:12:33,395 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:12:33,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:12:33,396 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_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d24e1fe59577ae07a5b7a898c9dc79f871eafbb8fdf9529a0c24eed9c094f3d [2022-11-21 17:12:33,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:12:33,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:12:33,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:12:33,700 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:12:33,701 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:12:33,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2022-11-21 17:12:36,898 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:12:37,181 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:12:37,182 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2022-11-21 17:12:37,197 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/data/da4658a5c/9b218b914cf34cf7a4d92d8abde6e9d0/FLAG1ba29bf5a [2022-11-21 17:12:37,214 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/data/da4658a5c/9b218b914cf34cf7a4d92d8abde6e9d0 [2022-11-21 17:12:37,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:12:37,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:12:37,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:12:37,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:12:37,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:12:37,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:12:37" (1/1) ... [2022-11-21 17:12:37,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45c24488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:37, skipping insertion in model container [2022-11-21 17:12:37,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:12:37" (1/1) ... [2022-11-21 17:12:37,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:12:37,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:12:37,885 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_bf8180e4-99b3-4335-9203-cc1b3716549f/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i[41323,41336] [2022-11-21 17:12:37,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:12:37,952 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:12:37,997 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_bf8180e4-99b3-4335-9203-cc1b3716549f/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i[41323,41336] [2022-11-21 17:12:38,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:12:38,075 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:12:38,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:38 WrapperNode [2022-11-21 17:12:38,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:12:38,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:12:38,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:12:38,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:12:38,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:38" (1/1) ... [2022-11-21 17:12:38,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:38" (1/1) ... [2022-11-21 17:12:38,137 INFO L138 Inliner]: procedures = 273, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 185 [2022-11-21 17:12:38,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:12:38,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:12:38,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:12:38,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:12:38,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:38" (1/1) ... [2022-11-21 17:12:38,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:38" (1/1) ... [2022-11-21 17:12:38,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:38" (1/1) ... [2022-11-21 17:12:38,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:38" (1/1) ... [2022-11-21 17:12:38,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:38" (1/1) ... [2022-11-21 17:12:38,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:38" (1/1) ... [2022-11-21 17:12:38,178 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:38" (1/1) ... [2022-11-21 17:12:38,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:38" (1/1) ... [2022-11-21 17:12:38,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:12:38,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:12:38,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:12:38,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:12:38,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:38" (1/1) ... [2022-11-21 17:12:38,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:12:38,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:12:38,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:12:38,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:12:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:12:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:12:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:12:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:12:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 17:12:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:12:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 17:12:38,320 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 17:12:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:12:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:12:38,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:12:38,322 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 17:12:38,542 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:12:38,545 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:12:38,954 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:12:38,968 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:12:38,968 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-21 17:12:38,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:12:38 BoogieIcfgContainer [2022-11-21 17:12:38,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:12:38,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:12:38,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:12:38,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:12:38,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:12:37" (1/3) ... [2022-11-21 17:12:38,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f78953c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:12:38, skipping insertion in model container [2022-11-21 17:12:38,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:12:38" (2/3) ... [2022-11-21 17:12:38,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f78953c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:12:38, skipping insertion in model container [2022-11-21 17:12:38,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:12:38" (3/3) ... [2022-11-21 17:12:38,980 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2022-11-21 17:12:38,992 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 17:12:39,003 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:12:39,003 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-21 17:12:39,003 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 17:12:39,132 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-21 17:12:39,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 187 places, 203 transitions, 414 flow [2022-11-21 17:12:39,280 INFO L130 PetriNetUnfolder]: 24/256 cut-off events. [2022-11-21 17:12:39,280 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 17:12:39,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 256 events. 24/256 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 871 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 159. Up to 4 conditions per place. [2022-11-21 17:12:39,290 INFO L82 GeneralOperation]: Start removeDead. Operand has 187 places, 203 transitions, 414 flow [2022-11-21 17:12:39,297 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 203 transitions, 414 flow [2022-11-21 17:12:39,326 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:12:39,335 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;@239dc27e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:12:39,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-21 17:12:39,365 INFO L130 PetriNetUnfolder]: 1/53 cut-off events. [2022-11-21 17:12:39,366 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:12:39,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:39,367 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] [2022-11-21 17:12:39,367 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-21 17:12:39,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:39,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1760296945, now seen corresponding path program 1 times [2022-11-21 17:12:39,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:39,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722798594] [2022-11-21 17:12:39,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:39,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:39,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:39,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:39,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722798594] [2022-11-21 17:12:39,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722798594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:39,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:39,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:12:39,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511848762] [2022-11-21 17:12:39,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:39,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 17:12:39,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:39,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 17:12:39,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:12:39,707 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 203 [2022-11-21 17:12:39,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 203 transitions, 414 flow. Second operand has 2 states, 2 states have (on average 183.5) internal successors, (367), 2 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:39,711 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:39,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 203 [2022-11-21 17:12:39,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:39,793 INFO L130 PetriNetUnfolder]: 2/232 cut-off events. [2022-11-21 17:12:39,793 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2022-11-21 17:12:39,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 232 events. 2/232 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 563 event pairs, 0 based on Foata normal form. 22/232 useless extension candidates. Maximal degree in co-relation 143. Up to 3 conditions per place. [2022-11-21 17:12:39,797 INFO L137 encePairwiseOnDemand]: 186/203 looper letters, 2 selfloop transitions, 0 changer transitions 0/185 dead transitions. [2022-11-21 17:12:39,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 185 transitions, 382 flow [2022-11-21 17:12:39,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 17:12:39,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-21 17:12:39,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 385 transitions. [2022-11-21 17:12:39,814 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9482758620689655 [2022-11-21 17:12:39,815 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 385 transitions. [2022-11-21 17:12:39,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 385 transitions. [2022-11-21 17:12:39,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:39,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 385 transitions. [2022-11-21 17:12:39,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:39,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:39,834 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:39,836 INFO L175 Difference]: Start difference. First operand has 187 places, 203 transitions, 414 flow. Second operand 2 states and 385 transitions. [2022-11-21 17:12:39,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 185 transitions, 382 flow [2022-11-21 17:12:39,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 185 transitions, 382 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:12:39,848 INFO L231 Difference]: Finished difference. Result has 187 places, 185 transitions, 378 flow [2022-11-21 17:12:39,851 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=378, PETRI_PLACES=187, PETRI_TRANSITIONS=185} [2022-11-21 17:12:39,856 INFO L288 CegarLoopForPetriNet]: 187 programPoint places, 0 predicate places. [2022-11-21 17:12:39,856 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 185 transitions, 378 flow [2022-11-21 17:12:39,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 183.5) internal successors, (367), 2 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:39,857 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:39,857 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:39,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:12:39,858 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-21 17:12:39,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:39,859 INFO L85 PathProgramCache]: Analyzing trace with hash -872793264, now seen corresponding path program 1 times [2022-11-21 17:12:39,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:39,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657697260] [2022-11-21 17:12:39,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:39,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:40,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:40,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657697260] [2022-11-21 17:12:40,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657697260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:40,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:40,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:12:40,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765559400] [2022-11-21 17:12:40,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:40,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:12:40,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:40,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:12:40,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:12:40,083 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 203 [2022-11-21 17:12:40,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 185 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:40,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:40,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 203 [2022-11-21 17:12:40,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:40,149 INFO L130 PetriNetUnfolder]: 1/204 cut-off events. [2022-11-21 17:12:40,149 INFO L131 PetriNetUnfolder]: For 9/20 co-relation queries the response was YES. [2022-11-21 17:12:40,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 204 events. 1/204 cut-off events. For 9/20 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 338 event pairs, 0 based on Foata normal form. 1/187 useless extension candidates. Maximal degree in co-relation 219. Up to 7 conditions per place. [2022-11-21 17:12:40,152 INFO L137 encePairwiseOnDemand]: 200/203 looper letters, 9 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2022-11-21 17:12:40,152 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 187 transitions, 404 flow [2022-11-21 17:12:40,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:12:40,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:12:40,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2022-11-21 17:12:40,156 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8866995073891626 [2022-11-21 17:12:40,156 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 540 transitions. [2022-11-21 17:12:40,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 540 transitions. [2022-11-21 17:12:40,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:40,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 540 transitions. [2022-11-21 17:12:40,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:40,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:40,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:40,163 INFO L175 Difference]: Start difference. First operand has 187 places, 185 transitions, 378 flow. Second operand 3 states and 540 transitions. [2022-11-21 17:12:40,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 187 transitions, 404 flow [2022-11-21 17:12:40,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 187 transitions, 404 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:12:40,169 INFO L231 Difference]: Finished difference. Result has 190 places, 185 transitions, 386 flow [2022-11-21 17:12:40,169 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=190, PETRI_TRANSITIONS=185} [2022-11-21 17:12:40,170 INFO L288 CegarLoopForPetriNet]: 187 programPoint places, 3 predicate places. [2022-11-21 17:12:40,171 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 185 transitions, 386 flow [2022-11-21 17:12:40,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:40,171 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:40,172 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:40,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:12:40,172 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-21 17:12:40,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:40,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1251294663, now seen corresponding path program 1 times [2022-11-21 17:12:40,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:40,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123587930] [2022-11-21 17:12:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:40,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:40,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:40,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123587930] [2022-11-21 17:12:40,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123587930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:40,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:40,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:12:40,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760992531] [2022-11-21 17:12:40,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:40,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:12:40,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:40,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:12:40,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:12:40,300 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 203 [2022-11-21 17:12:40,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 185 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:40,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:40,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 203 [2022-11-21 17:12:40,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:40,447 INFO L130 PetriNetUnfolder]: 13/563 cut-off events. [2022-11-21 17:12:40,447 INFO L131 PetriNetUnfolder]: For 12/19 co-relation queries the response was YES. [2022-11-21 17:12:40,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 563 events. 13/563 cut-off events. For 12/19 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2839 event pairs, 2 based on Foata normal form. 1/502 useless extension candidates. Maximal degree in co-relation 604. Up to 17 conditions per place. [2022-11-21 17:12:40,452 INFO L137 encePairwiseOnDemand]: 199/203 looper letters, 10 selfloop transitions, 3 changer transitions 0/190 dead transitions. [2022-11-21 17:12:40,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 190 transitions, 425 flow [2022-11-21 17:12:40,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:12:40,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:12:40,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions. [2022-11-21 17:12:40,455 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8949096880131363 [2022-11-21 17:12:40,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 545 transitions. [2022-11-21 17:12:40,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 545 transitions. [2022-11-21 17:12:40,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:40,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 545 transitions. [2022-11-21 17:12:40,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:40,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:40,461 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:40,461 INFO L175 Difference]: Start difference. First operand has 190 places, 185 transitions, 386 flow. Second operand 3 states and 545 transitions. [2022-11-21 17:12:40,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 190 transitions, 425 flow [2022-11-21 17:12:40,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 190 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 17:12:40,466 INFO L231 Difference]: Finished difference. Result has 192 places, 187 transitions, 404 flow [2022-11-21 17:12:40,467 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=192, PETRI_TRANSITIONS=187} [2022-11-21 17:12:40,468 INFO L288 CegarLoopForPetriNet]: 187 programPoint places, 5 predicate places. [2022-11-21 17:12:40,468 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 187 transitions, 404 flow [2022-11-21 17:12:40,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:40,469 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:40,469 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:40,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:12:40,470 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-21 17:12:40,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:40,470 INFO L85 PathProgramCache]: Analyzing trace with hash -39309455, now seen corresponding path program 1 times [2022-11-21 17:12:40,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:40,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012016187] [2022-11-21 17:12:40,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:40,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:12:40,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:12:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:12:40,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:12:40,608 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:12:40,610 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2022-11-21 17:12:40,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-11-21 17:12:40,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-11-21 17:12:40,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-11-21 17:12:40,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-11-21 17:12:40,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-11-21 17:12:40,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-11-21 17:12:40,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-11-21 17:12:40,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-11-21 17:12:40,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-11-21 17:12:40,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2022-11-21 17:12:40,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-11-21 17:12:40,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-11-21 17:12:40,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-11-21 17:12:40,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-11-21 17:12:40,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-11-21 17:12:40,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-11-21 17:12:40,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-11-21 17:12:40,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-11-21 17:12:40,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-11-21 17:12:40,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-11-21 17:12:40,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-11-21 17:12:40,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:12:40,628 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 17:12:40,633 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-21 17:12:40,634 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-21 17:12:40,737 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 17:12:40,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 306 transitions, 630 flow [2022-11-21 17:12:40,879 INFO L130 PetriNetUnfolder]: 45/443 cut-off events. [2022-11-21 17:12:40,880 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-21 17:12:40,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 443 events. 45/443 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1917 event pairs, 0 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 282. Up to 8 conditions per place. [2022-11-21 17:12:40,890 INFO L82 GeneralOperation]: Start removeDead. Operand has 278 places, 306 transitions, 630 flow [2022-11-21 17:12:40,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 278 places, 306 transitions, 630 flow [2022-11-21 17:12:40,914 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:12:40,919 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;@239dc27e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:12:40,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-21 17:12:40,926 INFO L130 PetriNetUnfolder]: 1/51 cut-off events. [2022-11-21 17:12:40,931 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:12:40,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:40,932 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] [2022-11-21 17:12:40,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-21 17:12:40,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:40,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1927980657, now seen corresponding path program 1 times [2022-11-21 17:12:40,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:40,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995630718] [2022-11-21 17:12:40,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:40,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:41,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:41,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:41,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995630718] [2022-11-21 17:12:41,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995630718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:41,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:41,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:12:41,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123103986] [2022-11-21 17:12:41,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:41,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 17:12:41,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:41,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 17:12:41,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:12:41,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 306 [2022-11-21 17:12:41,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 306 transitions, 630 flow. Second operand has 2 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:41,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:41,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 306 [2022-11-21 17:12:41,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:41,137 INFO L130 PetriNetUnfolder]: 5/400 cut-off events. [2022-11-21 17:12:41,137 INFO L131 PetriNetUnfolder]: For 18/22 co-relation queries the response was YES. [2022-11-21 17:12:41,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 400 events. 5/400 cut-off events. For 18/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1481 event pairs, 0 based on Foata normal form. 64/424 useless extension candidates. Maximal degree in co-relation 252. Up to 7 conditions per place. [2022-11-21 17:12:41,147 INFO L137 encePairwiseOnDemand]: 277/306 looper letters, 4 selfloop transitions, 0 changer transitions 0/276 dead transitions. [2022-11-21 17:12:41,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 276 transitions, 578 flow [2022-11-21 17:12:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 17:12:41,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-21 17:12:41,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 577 transitions. [2022-11-21 17:12:41,150 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9428104575163399 [2022-11-21 17:12:41,151 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 577 transitions. [2022-11-21 17:12:41,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 577 transitions. [2022-11-21 17:12:41,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:41,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 577 transitions. [2022-11-21 17:12:41,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 288.5) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:41,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 306.0) internal successors, (918), 3 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:41,157 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 306.0) internal successors, (918), 3 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:41,157 INFO L175 Difference]: Start difference. First operand has 278 places, 306 transitions, 630 flow. Second operand 2 states and 577 transitions. [2022-11-21 17:12:41,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 276 transitions, 578 flow [2022-11-21 17:12:41,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 276 transitions, 578 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:12:41,164 INFO L231 Difference]: Finished difference. Result has 278 places, 276 transitions, 570 flow [2022-11-21 17:12:41,165 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=570, PETRI_PLACES=278, PETRI_TRANSITIONS=276} [2022-11-21 17:12:41,167 INFO L288 CegarLoopForPetriNet]: 278 programPoint places, 0 predicate places. [2022-11-21 17:12:41,168 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 276 transitions, 570 flow [2022-11-21 17:12:41,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:41,169 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:41,169 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] [2022-11-21 17:12:41,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:12:41,169 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-21 17:12:41,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:41,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1040476976, now seen corresponding path program 1 times [2022-11-21 17:12:41,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:41,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150539669] [2022-11-21 17:12:41,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:41,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:41,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:41,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:41,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150539669] [2022-11-21 17:12:41,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150539669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:41,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:41,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:12:41,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302380731] [2022-11-21 17:12:41,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:41,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:12:41,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:41,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:12:41,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:12:41,299 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 306 [2022-11-21 17:12:41,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 276 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:41,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:41,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 306 [2022-11-21 17:12:41,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:41,466 INFO L130 PetriNetUnfolder]: 4/372 cut-off events. [2022-11-21 17:12:41,466 INFO L131 PetriNetUnfolder]: For 14/33 co-relation queries the response was YES. [2022-11-21 17:12:41,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 372 events. 4/372 cut-off events. For 14/33 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1297 event pairs, 0 based on Foata normal form. 1/337 useless extension candidates. Maximal degree in co-relation 403. Up to 16 conditions per place. [2022-11-21 17:12:41,477 INFO L137 encePairwiseOnDemand]: 303/306 looper letters, 13 selfloop transitions, 2 changer transitions 0/280 dead transitions. [2022-11-21 17:12:41,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 280 transitions, 608 flow [2022-11-21 17:12:41,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:12:41,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:12:41,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-11-21 17:12:41,481 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.883442265795207 [2022-11-21 17:12:41,482 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-11-21 17:12:41,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-11-21 17:12:41,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:41,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-11-21 17:12:41,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:41,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:41,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:41,490 INFO L175 Difference]: Start difference. First operand has 278 places, 276 transitions, 570 flow. Second operand 3 states and 811 transitions. [2022-11-21 17:12:41,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 280 transitions, 608 flow [2022-11-21 17:12:41,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 280 transitions, 608 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:12:41,498 INFO L231 Difference]: Finished difference. Result has 281 places, 277 transitions, 582 flow [2022-11-21 17:12:41,499 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=281, PETRI_TRANSITIONS=277} [2022-11-21 17:12:41,503 INFO L288 CegarLoopForPetriNet]: 278 programPoint places, 3 predicate places. [2022-11-21 17:12:41,503 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 277 transitions, 582 flow [2022-11-21 17:12:41,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:41,504 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:41,504 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:41,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:12:41,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-21 17:12:41,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:41,506 INFO L85 PathProgramCache]: Analyzing trace with hash 615707756, now seen corresponding path program 1 times [2022-11-21 17:12:41,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:41,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835568956] [2022-11-21 17:12:41,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:41,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:41,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:41,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:41,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835568956] [2022-11-21 17:12:41,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835568956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:41,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:41,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:12:41,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499227153] [2022-11-21 17:12:41,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:41,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:12:41,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:41,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:12:41,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:12:41,608 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 306 [2022-11-21 17:12:41,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 277 transitions, 582 flow. Second operand has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:41,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:41,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 306 [2022-11-21 17:12:41,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:42,427 INFO L130 PetriNetUnfolder]: 148/3264 cut-off events. [2022-11-21 17:12:42,427 INFO L131 PetriNetUnfolder]: For 75/119 co-relation queries the response was YES. [2022-11-21 17:12:42,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3560 conditions, 3264 events. 148/3264 cut-off events. For 75/119 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 31767 event pairs, 32 based on Foata normal form. 6/2874 useless extension candidates. Maximal degree in co-relation 3553. Up to 156 conditions per place. [2022-11-21 17:12:42,468 INFO L137 encePairwiseOnDemand]: 299/306 looper letters, 18 selfloop transitions, 5 changer transitions 0/287 dead transitions. [2022-11-21 17:12:42,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 287 transitions, 659 flow [2022-11-21 17:12:42,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:12:42,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:12:42,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2022-11-21 17:12:42,471 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8867102396514162 [2022-11-21 17:12:42,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2022-11-21 17:12:42,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2022-11-21 17:12:42,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:42,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2022-11-21 17:12:42,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:42,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:42,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:42,478 INFO L175 Difference]: Start difference. First operand has 281 places, 277 transitions, 582 flow. Second operand 3 states and 814 transitions. [2022-11-21 17:12:42,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 287 transitions, 659 flow [2022-11-21 17:12:42,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 287 transitions, 657 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 17:12:42,486 INFO L231 Difference]: Finished difference. Result has 284 places, 282 transitions, 624 flow [2022-11-21 17:12:42,487 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=624, PETRI_PLACES=284, PETRI_TRANSITIONS=282} [2022-11-21 17:12:42,489 INFO L288 CegarLoopForPetriNet]: 278 programPoint places, 6 predicate places. [2022-11-21 17:12:42,489 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 282 transitions, 624 flow [2022-11-21 17:12:42,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:42,493 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:42,493 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:42,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:12:42,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-21 17:12:42,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:42,494 INFO L85 PathProgramCache]: Analyzing trace with hash -755402237, now seen corresponding path program 1 times [2022-11-21 17:12:42,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:42,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432132283] [2022-11-21 17:12:42,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:42,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:42,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:42,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:42,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432132283] [2022-11-21 17:12:42,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432132283] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:12:42,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545576238] [2022-11-21 17:12:42,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:42,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:42,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:12:42,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:12:42,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 17:12:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:42,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:12:42,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:12:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:12:42,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:12:42,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545576238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:42,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:12:42,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-21 17:12:42,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386187324] [2022-11-21 17:12:42,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:42,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:12:42,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:42,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:12:42,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:12:42,831 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 306 [2022-11-21 17:12:42,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 282 transitions, 624 flow. Second operand has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:42,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:42,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 306 [2022-11-21 17:12:42,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:43,779 INFO L130 PetriNetUnfolder]: 212/5195 cut-off events. [2022-11-21 17:12:43,780 INFO L131 PetriNetUnfolder]: For 263/376 co-relation queries the response was YES. [2022-11-21 17:12:43,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5858 conditions, 5195 events. 212/5195 cut-off events. For 263/376 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 58585 event pairs, 50 based on Foata normal form. 5/4645 useless extension candidates. Maximal degree in co-relation 5850. Up to 242 conditions per place. [2022-11-21 17:12:43,849 INFO L137 encePairwiseOnDemand]: 300/306 looper letters, 25 selfloop transitions, 8 changer transitions 0/294 dead transitions. [2022-11-21 17:12:43,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 294 transitions, 742 flow [2022-11-21 17:12:43,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:12:43,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:12:43,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 805 transitions. [2022-11-21 17:12:43,852 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8769063180827886 [2022-11-21 17:12:43,852 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 805 transitions. [2022-11-21 17:12:43,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 805 transitions. [2022-11-21 17:12:43,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:43,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 805 transitions. [2022-11-21 17:12:43,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:43,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:43,860 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:43,861 INFO L175 Difference]: Start difference. First operand has 284 places, 282 transitions, 624 flow. Second operand 3 states and 805 transitions. [2022-11-21 17:12:43,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 294 transitions, 742 flow [2022-11-21 17:12:43,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 294 transitions, 724 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 17:12:43,875 INFO L231 Difference]: Finished difference. Result has 286 places, 288 transitions, 680 flow [2022-11-21 17:12:43,876 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=286, PETRI_TRANSITIONS=288} [2022-11-21 17:12:43,878 INFO L288 CegarLoopForPetriNet]: 278 programPoint places, 8 predicate places. [2022-11-21 17:12:43,878 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 288 transitions, 680 flow [2022-11-21 17:12:43,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:43,879 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:43,879 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] [2022-11-21 17:12:43,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:12:44,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:44,086 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-21 17:12:44,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:44,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1616920704, now seen corresponding path program 1 times [2022-11-21 17:12:44,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:44,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335773005] [2022-11-21 17:12:44,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:44,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:44,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:44,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:44,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335773005] [2022-11-21 17:12:44,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335773005] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:12:44,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942718149] [2022-11-21 17:12:44,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:44,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:44,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:12:44,269 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:12:44,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 17:12:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:44,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:12:44,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:12:44,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:44,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:12:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:44,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942718149] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:12:44,566 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:12:44,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-21 17:12:44,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788951448] [2022-11-21 17:12:44,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:12:44,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 17:12:44,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:44,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 17:12:44,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:12:44,574 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 306 [2022-11-21 17:12:44,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 288 transitions, 680 flow. Second operand has 10 states, 10 states have (on average 266.3) internal successors, (2663), 10 states have internal predecessors, (2663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:44,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:44,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 306 [2022-11-21 17:12:44,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:44,796 INFO L130 PetriNetUnfolder]: 9/492 cut-off events. [2022-11-21 17:12:44,796 INFO L131 PetriNetUnfolder]: For 8/11 co-relation queries the response was YES. [2022-11-21 17:12:44,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 492 events. 9/492 cut-off events. For 8/11 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2357 event pairs, 2 based on Foata normal form. 2/448 useless extension candidates. Maximal degree in co-relation 536. Up to 12 conditions per place. [2022-11-21 17:12:44,803 INFO L137 encePairwiseOnDemand]: 301/306 looper letters, 9 selfloop transitions, 7 changer transitions 0/234 dead transitions. [2022-11-21 17:12:44,803 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 234 transitions, 538 flow [2022-11-21 17:12:44,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:12:44,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-21 17:12:44,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2394 transitions. [2022-11-21 17:12:44,811 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.869281045751634 [2022-11-21 17:12:44,812 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2394 transitions. [2022-11-21 17:12:44,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2394 transitions. [2022-11-21 17:12:44,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:44,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2394 transitions. [2022-11-21 17:12:44,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:44,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 306.0) internal successors, (3060), 10 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:44,830 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 306.0) internal successors, (3060), 10 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:44,830 INFO L175 Difference]: Start difference. First operand has 286 places, 288 transitions, 680 flow. Second operand 9 states and 2394 transitions. [2022-11-21 17:12:44,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 234 transitions, 538 flow [2022-11-21 17:12:44,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 234 transitions, 528 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-11-21 17:12:44,837 INFO L231 Difference]: Finished difference. Result has 242 places, 230 transitions, 502 flow [2022-11-21 17:12:44,838 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=502, PETRI_PLACES=242, PETRI_TRANSITIONS=230} [2022-11-21 17:12:44,838 INFO L288 CegarLoopForPetriNet]: 278 programPoint places, -36 predicate places. [2022-11-21 17:12:44,839 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 230 transitions, 502 flow [2022-11-21 17:12:44,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 266.3) internal successors, (2663), 10 states have internal predecessors, (2663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:44,840 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:44,840 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] [2022-11-21 17:12:44,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:12:45,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-21 17:12:45,047 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-21 17:12:45,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:45,048 INFO L85 PathProgramCache]: Analyzing trace with hash 984929279, now seen corresponding path program 1 times [2022-11-21 17:12:45,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:45,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117566590] [2022-11-21 17:12:45,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:45,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:45,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:45,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:45,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117566590] [2022-11-21 17:12:45,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117566590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:45,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:45,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:12:45,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015700472] [2022-11-21 17:12:45,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:45,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:12:45,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:45,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:12:45,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:12:45,103 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 306 [2022-11-21 17:12:45,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 230 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:45,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:45,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 306 [2022-11-21 17:12:45,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:45,818 INFO L130 PetriNetUnfolder]: 708/3286 cut-off events. [2022-11-21 17:12:45,819 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-11-21 17:12:45,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4897 conditions, 3286 events. 708/3286 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 29105 event pairs, 268 based on Foata normal form. 0/2860 useless extension candidates. Maximal degree in co-relation 4888. Up to 839 conditions per place. [2022-11-21 17:12:45,852 INFO L137 encePairwiseOnDemand]: 274/306 looper letters, 67 selfloop transitions, 24 changer transitions 0/271 dead transitions. [2022-11-21 17:12:45,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 271 transitions, 771 flow [2022-11-21 17:12:45,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:12:45,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:12:45,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 762 transitions. [2022-11-21 17:12:45,855 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8300653594771242 [2022-11-21 17:12:45,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 762 transitions. [2022-11-21 17:12:45,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 762 transitions. [2022-11-21 17:12:45,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:45,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 762 transitions. [2022-11-21 17:12:45,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:45,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:45,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:45,862 INFO L175 Difference]: Start difference. First operand has 242 places, 230 transitions, 502 flow. Second operand 3 states and 762 transitions. [2022-11-21 17:12:45,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 271 transitions, 771 flow [2022-11-21 17:12:45,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 271 transitions, 756 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-21 17:12:45,868 INFO L231 Difference]: Finished difference. Result has 241 places, 254 transitions, 695 flow [2022-11-21 17:12:45,869 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=241, PETRI_TRANSITIONS=254} [2022-11-21 17:12:45,870 INFO L288 CegarLoopForPetriNet]: 278 programPoint places, -37 predicate places. [2022-11-21 17:12:45,870 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 254 transitions, 695 flow [2022-11-21 17:12:45,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:45,871 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:45,871 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:45,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 17:12:45,871 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-21 17:12:45,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:45,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1452311185, now seen corresponding path program 1 times [2022-11-21 17:12:45,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:45,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358895775] [2022-11-21 17:12:45,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:45,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:12:45,893 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:12:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:12:45,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:12:45,915 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:12:45,915 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2022-11-21 17:12:45,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-11-21 17:12:45,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-11-21 17:12:45,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-11-21 17:12:45,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-11-21 17:12:45,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-11-21 17:12:45,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-11-21 17:12:45,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-11-21 17:12:45,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-11-21 17:12:45,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-11-21 17:12:45,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-11-21 17:12:45,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-11-21 17:12:45,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-11-21 17:12:45,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-11-21 17:12:45,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-11-21 17:12:45,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-11-21 17:12:45,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-11-21 17:12:45,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-11-21 17:12:45,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-11-21 17:12:45,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2022-11-21 17:12:45,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2022-11-21 17:12:45,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-11-21 17:12:45,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-11-21 17:12:45,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-11-21 17:12:45,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-11-21 17:12:45,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-11-21 17:12:45,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-11-21 17:12:45,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-11-21 17:12:45,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-11-21 17:12:45,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-11-21 17:12:45,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-11-21 17:12:45,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 17:12:45,923 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:45,923 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-21 17:12:45,924 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-21 17:12:45,972 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-21 17:12:45,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 409 transitions, 848 flow [2022-11-21 17:12:46,136 INFO L130 PetriNetUnfolder]: 71/675 cut-off events. [2022-11-21 17:12:46,136 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-21 17:12:46,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 675 events. 71/675 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3218 event pairs, 1 based on Foata normal form. 0/557 useless extension candidates. Maximal degree in co-relation 451. Up to 16 conditions per place. [2022-11-21 17:12:46,155 INFO L82 GeneralOperation]: Start removeDead. Operand has 369 places, 409 transitions, 848 flow [2022-11-21 17:12:46,166 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 409 transitions, 848 flow [2022-11-21 17:12:46,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:12:46,168 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;@239dc27e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:12:46,168 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-11-21 17:12:46,173 INFO L130 PetriNetUnfolder]: 1/51 cut-off events. [2022-11-21 17:12:46,173 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:12:46,173 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:46,174 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] [2022-11-21 17:12:46,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-11-21 17:12:46,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:46,174 INFO L85 PathProgramCache]: Analyzing trace with hash 2086717007, now seen corresponding path program 1 times [2022-11-21 17:12:46,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:46,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282419870] [2022-11-21 17:12:46,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:46,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:46,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:46,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:46,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282419870] [2022-11-21 17:12:46,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282419870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:46,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:46,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:12:46,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189203284] [2022-11-21 17:12:46,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:46,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 17:12:46,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:46,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 17:12:46,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:12:46,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 409 [2022-11-21 17:12:46,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 409 transitions, 848 flow. Second operand has 2 states, 2 states have (on average 361.5) internal successors, (723), 2 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:46,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:46,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 409 [2022-11-21 17:12:46,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:46,413 INFO L130 PetriNetUnfolder]: 11/611 cut-off events. [2022-11-21 17:12:46,413 INFO L131 PetriNetUnfolder]: For 54/69 co-relation queries the response was YES. [2022-11-21 17:12:46,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 611 events. 11/611 cut-off events. For 54/69 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2764 event pairs, 1 based on Foata normal form. 172/721 useless extension candidates. Maximal degree in co-relation 414. Up to 16 conditions per place. [2022-11-21 17:12:46,427 INFO L137 encePairwiseOnDemand]: 368/409 looper letters, 6 selfloop transitions, 0 changer transitions 0/367 dead transitions. [2022-11-21 17:12:46,427 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 367 transitions, 776 flow [2022-11-21 17:12:46,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 17:12:46,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-21 17:12:46,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 769 transitions. [2022-11-21 17:12:46,430 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9400977995110025 [2022-11-21 17:12:46,430 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 769 transitions. [2022-11-21 17:12:46,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 769 transitions. [2022-11-21 17:12:46,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:46,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 769 transitions. [2022-11-21 17:12:46,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 384.5) internal successors, (769), 2 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:46,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:46,436 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:46,437 INFO L175 Difference]: Start difference. First operand has 369 places, 409 transitions, 848 flow. Second operand 2 states and 769 transitions. [2022-11-21 17:12:46,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 367 transitions, 776 flow [2022-11-21 17:12:46,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 367 transitions, 776 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:12:46,444 INFO L231 Difference]: Finished difference. Result has 369 places, 367 transitions, 764 flow [2022-11-21 17:12:46,445 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=764, PETRI_PLACES=369, PETRI_TRANSITIONS=367} [2022-11-21 17:12:46,446 INFO L288 CegarLoopForPetriNet]: 369 programPoint places, 0 predicate places. [2022-11-21 17:12:46,447 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 367 transitions, 764 flow [2022-11-21 17:12:46,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 361.5) internal successors, (723), 2 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:46,449 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:46,449 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] [2022-11-21 17:12:46,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 17:12:46,449 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-11-21 17:12:46,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:46,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1320746608, now seen corresponding path program 1 times [2022-11-21 17:12:46,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:46,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995368459] [2022-11-21 17:12:46,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:46,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:46,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:46,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995368459] [2022-11-21 17:12:46,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995368459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:46,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:46,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:12:46,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231948183] [2022-11-21 17:12:46,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:46,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:12:46,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:46,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:12:46,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:12:46,500 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 409 [2022-11-21 17:12:46,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 367 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:46,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:46,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 409 [2022-11-21 17:12:46,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:46,696 INFO L130 PetriNetUnfolder]: 10/583 cut-off events. [2022-11-21 17:12:46,697 INFO L131 PetriNetUnfolder]: For 67/162 co-relation queries the response was YES. [2022-11-21 17:12:46,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 647 conditions, 583 events. 10/583 cut-off events. For 67/162 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2551 event pairs, 1 based on Foata normal form. 1/526 useless extension candidates. Maximal degree in co-relation 641. Up to 30 conditions per place. [2022-11-21 17:12:46,716 INFO L137 encePairwiseOnDemand]: 406/409 looper letters, 15 selfloop transitions, 2 changer transitions 0/371 dead transitions. [2022-11-21 17:12:46,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 371 transitions, 806 flow [2022-11-21 17:12:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:12:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:12:46,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1080 transitions. [2022-11-21 17:12:46,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8801955990220048 [2022-11-21 17:12:46,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1080 transitions. [2022-11-21 17:12:46,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1080 transitions. [2022-11-21 17:12:46,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:46,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1080 transitions. [2022-11-21 17:12:46,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 360.0) internal successors, (1080), 3 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:46,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:46,729 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:46,729 INFO L175 Difference]: Start difference. First operand has 369 places, 367 transitions, 764 flow. Second operand 3 states and 1080 transitions. [2022-11-21 17:12:46,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 371 transitions, 806 flow [2022-11-21 17:12:46,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 371 transitions, 806 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:12:46,737 INFO L231 Difference]: Finished difference. Result has 372 places, 368 transitions, 776 flow [2022-11-21 17:12:46,738 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=776, PETRI_PLACES=372, PETRI_TRANSITIONS=368} [2022-11-21 17:12:46,739 INFO L288 CegarLoopForPetriNet]: 369 programPoint places, 3 predicate places. [2022-11-21 17:12:46,739 INFO L495 AbstractCegarLoop]: Abstraction has has 372 places, 368 transitions, 776 flow [2022-11-21 17:12:46,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:46,740 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:46,740 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:46,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 17:12:46,741 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-11-21 17:12:46,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:46,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1228940335, now seen corresponding path program 1 times [2022-11-21 17:12:46,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:46,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098370018] [2022-11-21 17:12:46,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:46,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:46,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:46,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:46,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098370018] [2022-11-21 17:12:46,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098370018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:46,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:12:46,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:12:46,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905541700] [2022-11-21 17:12:46,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:46,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:12:46,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:46,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:12:46,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:12:46,797 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 409 [2022-11-21 17:12:46,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 368 transitions, 776 flow. Second operand has 3 states, 3 states have (on average 350.0) internal successors, (1050), 3 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:46,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:46,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 409 [2022-11-21 17:12:46,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:51,155 INFO L130 PetriNetUnfolder]: 1069/17207 cut-off events. [2022-11-21 17:12:51,156 INFO L131 PetriNetUnfolder]: For 668/1071 co-relation queries the response was YES. [2022-11-21 17:12:51,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18960 conditions, 17207 events. 1069/17207 cut-off events. For 668/1071 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 235389 event pairs, 290 based on Foata normal form. 23/15094 useless extension candidates. Maximal degree in co-relation 18952. Up to 1038 conditions per place. [2022-11-21 17:12:51,459 INFO L137 encePairwiseOnDemand]: 399/409 looper letters, 25 selfloop transitions, 7 changer transitions 0/382 dead transitions. [2022-11-21 17:12:51,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 382 transitions, 889 flow [2022-11-21 17:12:51,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:12:51,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:12:51,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1082 transitions. [2022-11-21 17:12:51,464 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8818255908720456 [2022-11-21 17:12:51,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1082 transitions. [2022-11-21 17:12:51,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1082 transitions. [2022-11-21 17:12:51,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:51,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1082 transitions. [2022-11-21 17:12:51,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 360.6666666666667) internal successors, (1082), 3 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:51,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:51,473 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:51,473 INFO L175 Difference]: Start difference. First operand has 372 places, 368 transitions, 776 flow. Second operand 3 states and 1082 transitions. [2022-11-21 17:12:51,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 382 transitions, 889 flow [2022-11-21 17:12:51,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 382 transitions, 887 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 17:12:51,483 INFO L231 Difference]: Finished difference. Result has 375 places, 375 transitions, 836 flow [2022-11-21 17:12:51,484 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=836, PETRI_PLACES=375, PETRI_TRANSITIONS=375} [2022-11-21 17:12:51,484 INFO L288 CegarLoopForPetriNet]: 369 programPoint places, 6 predicate places. [2022-11-21 17:12:51,485 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 375 transitions, 836 flow [2022-11-21 17:12:51,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.0) internal successors, (1050), 3 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:51,486 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:51,486 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:51,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 17:12:51,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-11-21 17:12:51,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:51,487 INFO L85 PathProgramCache]: Analyzing trace with hash 395818824, now seen corresponding path program 1 times [2022-11-21 17:12:51,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:51,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371371399] [2022-11-21 17:12:51,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:51,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:51,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:51,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371371399] [2022-11-21 17:12:51,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371371399] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:12:51,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810379187] [2022-11-21 17:12:51,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:51,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:51,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:12:51,586 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:12:51,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 17:12:51,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:51,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:12:51,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:12:51,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:12:51,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:12:51,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810379187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:12:51,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:12:51,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-21 17:12:51,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850502160] [2022-11-21 17:12:51,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:12:51,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:12:51,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:51,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:12:51,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:12:51,762 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 409 [2022-11-21 17:12:51,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 375 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:51,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:51,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 409 [2022-11-21 17:12:51,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:12:56,587 INFO L130 PetriNetUnfolder]: 1485/27397 cut-off events. [2022-11-21 17:12:56,588 INFO L131 PetriNetUnfolder]: For 1881/3940 co-relation queries the response was YES. [2022-11-21 17:12:56,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31479 conditions, 27397 events. 1485/27397 cut-off events. For 1881/3940 co-relation queries the response was YES. Maximal size of possible extension queue 666. Compared 420125 event pairs, 395 based on Foata normal form. 18/24488 useless extension candidates. Maximal degree in co-relation 31470. Up to 1514 conditions per place. [2022-11-21 17:12:57,026 INFO L137 encePairwiseOnDemand]: 402/409 looper letters, 35 selfloop transitions, 10 changer transitions 0/392 dead transitions. [2022-11-21 17:12:57,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 392 transitions, 1002 flow [2022-11-21 17:12:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:12:57,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:12:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1071 transitions. [2022-11-21 17:12:57,030 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8728606356968215 [2022-11-21 17:12:57,030 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1071 transitions. [2022-11-21 17:12:57,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1071 transitions. [2022-11-21 17:12:57,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:12:57,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1071 transitions. [2022-11-21 17:12:57,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 357.0) internal successors, (1071), 3 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:57,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:57,040 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 409.0) internal successors, (1636), 4 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:57,040 INFO L175 Difference]: Start difference. First operand has 375 places, 375 transitions, 836 flow. Second operand 3 states and 1071 transitions. [2022-11-21 17:12:57,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 392 transitions, 1002 flow [2022-11-21 17:12:57,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 392 transitions, 976 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 17:12:57,052 INFO L231 Difference]: Finished difference. Result has 377 places, 383 transitions, 908 flow [2022-11-21 17:12:57,053 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=377, PETRI_TRANSITIONS=383} [2022-11-21 17:12:57,055 INFO L288 CegarLoopForPetriNet]: 369 programPoint places, 8 predicate places. [2022-11-21 17:12:57,055 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 383 transitions, 908 flow [2022-11-21 17:12:57,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:57,056 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:12:57,056 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] [2022-11-21 17:12:57,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 17:12:57,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:57,264 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-11-21 17:12:57,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:57,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1413264712, now seen corresponding path program 1 times [2022-11-21 17:12:57,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:57,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083378835] [2022-11-21 17:12:57,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:57,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:57,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:57,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:57,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083378835] [2022-11-21 17:12:57,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083378835] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:12:57,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357462145] [2022-11-21 17:12:57,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:57,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:57,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:12:57,367 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:12:57,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 17:12:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:57,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:12:57,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:12:57,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:57,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:12:57,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:57,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357462145] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:12:57,614 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:12:57,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-21 17:12:57,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336456973] [2022-11-21 17:12:57,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:12:57,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 17:12:57,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:57,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 17:12:57,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:12:57,625 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 409 [2022-11-21 17:12:57,631 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 383 transitions, 908 flow. Second operand has 10 states, 10 states have (on average 355.3) internal successors, (3553), 10 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:12:57,631 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:12:57,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 409 [2022-11-21 17:12:57,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:13:01,427 INFO L130 PetriNetUnfolder]: 706/17513 cut-off events. [2022-11-21 17:13:01,427 INFO L131 PetriNetUnfolder]: For 1217/1486 co-relation queries the response was YES. [2022-11-21 17:13:01,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19480 conditions, 17513 events. 706/17513 cut-off events. For 1217/1486 co-relation queries the response was YES. Maximal size of possible extension queue 454. Compared 257515 event pairs, 164 based on Foata normal form. 15/15552 useless extension candidates. Maximal degree in co-relation 19470. Up to 682 conditions per place. [2022-11-21 17:13:01,762 INFO L137 encePairwiseOnDemand]: 403/409 looper letters, 16 selfloop transitions, 9 changer transitions 0/393 dead transitions. [2022-11-21 17:13:01,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 393 transitions, 980 flow [2022-11-21 17:13:01,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:13:01,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-21 17:13:01,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3204 transitions. [2022-11-21 17:13:01,770 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8704156479217604 [2022-11-21 17:13:01,771 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3204 transitions. [2022-11-21 17:13:01,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3204 transitions. [2022-11-21 17:13:01,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:13:01,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3204 transitions. [2022-11-21 17:13:01,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 356.0) internal successors, (3204), 9 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:13:01,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 409.0) internal successors, (4090), 10 states have internal predecessors, (4090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:13:01,791 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 409.0) internal successors, (4090), 10 states have internal predecessors, (4090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:13:01,791 INFO L175 Difference]: Start difference. First operand has 377 places, 383 transitions, 908 flow. Second operand 9 states and 3204 transitions. [2022-11-21 17:13:01,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 393 transitions, 980 flow [2022-11-21 17:13:01,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 393 transitions, 960 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 17:13:01,804 INFO L231 Difference]: Finished difference. Result has 386 places, 389 transitions, 938 flow [2022-11-21 17:13:01,805 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=409, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=938, PETRI_PLACES=386, PETRI_TRANSITIONS=389} [2022-11-21 17:13:01,806 INFO L288 CegarLoopForPetriNet]: 369 programPoint places, 17 predicate places. [2022-11-21 17:13:01,806 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 389 transitions, 938 flow [2022-11-21 17:13:01,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 355.3) internal successors, (3553), 10 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:13:01,808 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:13:01,808 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] [2022-11-21 17:13:01,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 17:13:02,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf8180e4-99b3-4335-9203-cc1b3716549f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-21 17:13:02,014 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-11-21 17:13:02,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:13:02,015 INFO L85 PathProgramCache]: Analyzing trace with hash 2048044580, now seen corresponding path program 1 times [2022-11-21 17:13:02,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:13:02,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780014275] [2022-11-21 17:13:02,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:13:02,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:13:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:13:02,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:13:02,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:13:02,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780014275] [2022-11-21 17:13:02,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780014275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:13:02,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:13:02,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:13:02,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331843556] [2022-11-21 17:13:02,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:13:02,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:13:02,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:13:02,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:13:02,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:13:02,078 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 409 [2022-11-21 17:13:02,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 389 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:13:02,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:13:02,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 409 [2022-11-21 17:13:02,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:13:35,630 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 248#L961-3true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, 65#L938-8true, t_funThread3of3ForFork0InUse, 372#true, 180#L938-8true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-21 17:13:35,630 INFO L383 tUnfolder$Statistics]: this new event has 144 ancestors and is cut-off event [2022-11-21 17:13:35,630 INFO L386 tUnfolder$Statistics]: existing Event has 144 ancestors and is cut-off event [2022-11-21 17:13:35,631 INFO L386 tUnfolder$Statistics]: existing Event has 144 ancestors and is cut-off event [2022-11-21 17:13:35,631 INFO L386 tUnfolder$Statistics]: existing Event has 144 ancestors and is cut-off event [2022-11-21 17:13:38,685 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 248#L961-3true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, 321#L938-9true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 372#true, 180#L938-8true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-21 17:13:38,686 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,686 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,686 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,687 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,733 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 248#L961-3true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 124#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, 372#true, 180#L938-8true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-21 17:13:38,733 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,733 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,734 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,734 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,787 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 248#L961-3true, 926#(= |#race~global~0| 0), 77#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, 65#L938-8true, t_funThread3of3ForFork0InUse, 372#true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-21 17:13:38,788 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,788 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,788 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,788 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,793 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 248#L961-3true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, 65#L938-8true, t_funThread3of3ForFork0InUse, 372#true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), 168#L938-9true, Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-21 17:13:38,793 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,793 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,793 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,794 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,799 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1350] L942-2-->L942-3: Formula: (= |v_#race~global~0_17| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_17|} AuxVars[] AssignedVars[#race~global~0][240], [326#L942-3true, Black: 380#true, 926#(= |#race~global~0| 0), Black: 550#(= |#race~f~0| |ULTIMATE.start_main_#t~nondet49#1|), 554#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, 38#L961-4true, 65#L938-8true, t_funThread3of3ForFork0InUse, 372#true, 180#L938-8true, Black: 558#(<= |ULTIMATE.start_main_~i~0#1| 1), Black: 771#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 377#(= |ULTIMATE.start_main_~i~0#1| 0)]) [2022-11-21 17:13:38,799 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,800 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,800 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event [2022-11-21 17:13:38,800 INFO L386 tUnfolder$Statistics]: existing Event has 145 ancestors and is cut-off event