./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:07:15,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:07:15,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:07:15,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:07:15,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:07:15,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:07:15,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:07:15,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:07:15,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:07:15,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:07:15,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:07:15,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:07:15,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:07:15,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:07:15,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:07:15,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:07:15,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:07:15,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:07:15,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:07:15,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:07:15,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:07:15,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:07:15,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:07:15,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:07:15,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:07:15,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:07:15,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:07:15,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:07:15,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:07:15,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:07:15,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:07:15,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:07:15,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:07:15,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:07:15,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:07:15,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:07:15,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:07:15,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:07:15,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:07:15,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:07:15,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:07:15,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:07:16,030 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:07:16,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:07:16,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:07:16,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:07:16,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:07:16,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:07:16,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:07:16,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:07:16,034 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:07:16,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:07:16,035 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:07:16,036 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:07:16,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:07:16,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:07:16,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:07:16,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:07:16,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:07:16,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:07:16,037 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:07:16,037 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:07:16,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:07:16,038 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:07:16,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:07:16,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:07:16,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:07:16,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:07:16,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:07:16,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:07:16,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:07:16,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:07:16,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:07:16,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:07:16,042 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:07:16,042 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:07:16,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:07:16,043 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_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2022-11-02 21:07:16,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:07:16,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:07:16,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:07:16,317 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:07:16,318 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:07:16,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2022-11-02 21:07:16,394 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/data/5c1a8ddac/decbd5ae83d442a09072c1a2a832ffa5/FLAGfdabaca86 [2022-11-02 21:07:16,976 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:07:16,977 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2022-11-02 21:07:17,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/data/5c1a8ddac/decbd5ae83d442a09072c1a2a832ffa5/FLAGfdabaca86 [2022-11-02 21:07:17,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/data/5c1a8ddac/decbd5ae83d442a09072c1a2a832ffa5 [2022-11-02 21:07:17,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:07:17,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:07:17,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:07:17,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:07:17,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:07:17,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:07:17" (1/1) ... [2022-11-02 21:07:17,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fba16c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:17, skipping insertion in model container [2022-11-02 21:07:17,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:07:17" (1/1) ... [2022-11-02 21:07:17,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:07:17,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:07:18,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:07:18,143 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:07:18,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:07:18,318 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:07:18,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:18 WrapperNode [2022-11-02 21:07:18,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:07:18,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:07:18,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:07:18,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:07:18,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:18" (1/1) ... [2022-11-02 21:07:18,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:18" (1/1) ... [2022-11-02 21:07:18,404 INFO L138 Inliner]: procedures = 369, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 237 [2022-11-02 21:07:18,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:07:18,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:07:18,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:07:18,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:07:18,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:18" (1/1) ... [2022-11-02 21:07:18,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:18" (1/1) ... [2022-11-02 21:07:18,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:18" (1/1) ... [2022-11-02 21:07:18,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:18" (1/1) ... [2022-11-02 21:07:18,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:18" (1/1) ... [2022-11-02 21:07:18,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:18" (1/1) ... [2022-11-02 21:07:18,448 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:18" (1/1) ... [2022-11-02 21:07:18,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:18" (1/1) ... [2022-11-02 21:07:18,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:07:18,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:07:18,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:07:18,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:07:18,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:18" (1/1) ... [2022-11-02 21:07:18,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:07:18,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:07:18,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:07:18,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:07:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:07:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 21:07:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:07:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:07:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:07:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 21:07:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:07:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:07:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 21:07:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 21:07:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 21:07:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:07:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:07:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:07:18,554 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:07:18,749 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:07:18,754 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:07:19,395 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:07:19,406 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:07:19,406 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 21:07:19,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:19 BoogieIcfgContainer [2022-11-02 21:07:19,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:07:19,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:07:19,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:07:19,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:07:19,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:07:17" (1/3) ... [2022-11-02 21:07:19,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc2be3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:07:19, skipping insertion in model container [2022-11-02 21:07:19,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:18" (2/3) ... [2022-11-02 21:07:19,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc2be3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:07:19, skipping insertion in model container [2022-11-02 21:07:19,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:19" (3/3) ... [2022-11-02 21:07:19,425 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2022-11-02 21:07:19,444 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:07:19,455 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:07:19,455 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-02 21:07:19,455 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:07:19,597 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 21:07:19,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 274 transitions, 553 flow [2022-11-02 21:07:19,767 INFO L130 PetriNetUnfolder]: 6/273 cut-off events. [2022-11-02 21:07:19,767 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:07:19,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 273 events. 6/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 430 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2022-11-02 21:07:19,782 INFO L82 GeneralOperation]: Start removeDead. Operand has 272 places, 274 transitions, 553 flow [2022-11-02 21:07:19,789 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 271 places, 273 transitions, 549 flow [2022-11-02 21:07:19,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:07:19,805 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;@32631dff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:07:19,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-02 21:07:19,819 INFO L130 PetriNetUnfolder]: 3/79 cut-off events. [2022-11-02 21:07:19,820 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:07:19,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:19,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:19,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:07:19,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:19,826 INFO L85 PathProgramCache]: Analyzing trace with hash 121722460, now seen corresponding path program 1 times [2022-11-02 21:07:19,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:19,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987801122] [2022-11-02 21:07:19,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:19,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:20,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:20,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:20,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987801122] [2022-11-02 21:07:20,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987801122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:20,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:20,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:07:20,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002412445] [2022-11-02 21:07:20,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:20,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:07:20,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:20,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:07:20,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:07:20,800 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 274 [2022-11-02 21:07:20,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 273 transitions, 549 flow. Second operand has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:20,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:20,810 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 274 [2022-11-02 21:07:20,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:23,396 INFO L130 PetriNetUnfolder]: 2475/7977 cut-off events. [2022-11-02 21:07:23,396 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:07:23,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12951 conditions, 7977 events. 2475/7977 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 62646 event pairs, 1992 based on Foata normal form. 196/7312 useless extension candidates. Maximal degree in co-relation 12850. Up to 4684 conditions per place. [2022-11-02 21:07:23,530 INFO L137 encePairwiseOnDemand]: 234/274 looper letters, 164 selfloop transitions, 107 changer transitions 0/418 dead transitions. [2022-11-02 21:07:23,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 418 transitions, 1381 flow [2022-11-02 21:07:23,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:07:23,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:07:23,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1168 transitions. [2022-11-02 21:07:23,568 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7104622871046229 [2022-11-02 21:07:23,569 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1168 transitions. [2022-11-02 21:07:23,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1168 transitions. [2022-11-02 21:07:23,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:23,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1168 transitions. [2022-11-02 21:07:23,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:23,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:23,615 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:23,617 INFO L175 Difference]: Start difference. First operand has 271 places, 273 transitions, 549 flow. Second operand 6 states and 1168 transitions. [2022-11-02 21:07:23,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 418 transitions, 1381 flow [2022-11-02 21:07:23,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 418 transitions, 1380 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:07:23,641 INFO L231 Difference]: Finished difference. Result has 279 places, 370 transitions, 1230 flow [2022-11-02 21:07:23,644 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1230, PETRI_PLACES=279, PETRI_TRANSITIONS=370} [2022-11-02 21:07:23,648 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 8 predicate places. [2022-11-02 21:07:23,648 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 370 transitions, 1230 flow [2022-11-02 21:07:23,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:23,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:23,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:23,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:07:23,651 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:07:23,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:23,653 INFO L85 PathProgramCache]: Analyzing trace with hash -964891731, now seen corresponding path program 1 times [2022-11-02 21:07:23,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:23,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092860726] [2022-11-02 21:07:23,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:23,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:24,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:24,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092860726] [2022-11-02 21:07:24,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092860726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:24,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:24,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:07:24,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638541142] [2022-11-02 21:07:24,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:24,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:07:24,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:24,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:07:24,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:07:24,301 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 274 [2022-11-02 21:07:24,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 370 transitions, 1230 flow. Second operand has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:24,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:24,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 274 [2022-11-02 21:07:24,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:26,665 INFO L130 PetriNetUnfolder]: 2669/8641 cut-off events. [2022-11-02 21:07:26,665 INFO L131 PetriNetUnfolder]: For 1696/1698 co-relation queries the response was YES. [2022-11-02 21:07:26,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16551 conditions, 8641 events. 2669/8641 cut-off events. For 1696/1698 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 68990 event pairs, 1874 based on Foata normal form. 0/7773 useless extension candidates. Maximal degree in co-relation 16438. Up to 5042 conditions per place. [2022-11-02 21:07:26,719 INFO L137 encePairwiseOnDemand]: 237/274 looper letters, 263 selfloop transitions, 107 changer transitions 0/518 dead transitions. [2022-11-02 21:07:26,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 518 transitions, 2458 flow [2022-11-02 21:07:26,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:07:26,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:07:26,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1160 transitions. [2022-11-02 21:07:26,723 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7055961070559611 [2022-11-02 21:07:26,723 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1160 transitions. [2022-11-02 21:07:26,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1160 transitions. [2022-11-02 21:07:26,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:26,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1160 transitions. [2022-11-02 21:07:26,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 193.33333333333334) internal successors, (1160), 6 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:26,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:26,732 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:26,732 INFO L175 Difference]: Start difference. First operand has 279 places, 370 transitions, 1230 flow. Second operand 6 states and 1160 transitions. [2022-11-02 21:07:26,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 518 transitions, 2458 flow [2022-11-02 21:07:26,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 518 transitions, 2458 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:07:26,750 INFO L231 Difference]: Finished difference. Result has 288 places, 470 transitions, 2110 flow [2022-11-02 21:07:26,751 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1228, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2110, PETRI_PLACES=288, PETRI_TRANSITIONS=470} [2022-11-02 21:07:26,752 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 17 predicate places. [2022-11-02 21:07:26,752 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 470 transitions, 2110 flow [2022-11-02 21:07:26,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:26,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:26,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:26,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:07:26,754 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:07:26,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:26,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1248115734, now seen corresponding path program 1 times [2022-11-02 21:07:26,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:26,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245934709] [2022-11-02 21:07:26,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:26,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:26,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:26,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:26,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245934709] [2022-11-02 21:07:26,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245934709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:26,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:26,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:07:26,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478259585] [2022-11-02 21:07:26,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:26,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:07:26,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:26,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:07:26,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:07:26,813 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 274 [2022-11-02 21:07:26,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 470 transitions, 2110 flow. Second operand has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:26,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:26,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 274 [2022-11-02 21:07:26,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:27,931 INFO L130 PetriNetUnfolder]: 1071/4168 cut-off events. [2022-11-02 21:07:27,931 INFO L131 PetriNetUnfolder]: For 1160/1172 co-relation queries the response was YES. [2022-11-02 21:07:27,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8533 conditions, 4168 events. 1071/4168 cut-off events. For 1160/1172 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 26556 event pairs, 96 based on Foata normal form. 0/3929 useless extension candidates. Maximal degree in co-relation 8341. Up to 1144 conditions per place. [2022-11-02 21:07:27,979 INFO L137 encePairwiseOnDemand]: 268/274 looper letters, 65 selfloop transitions, 4 changer transitions 0/501 dead transitions. [2022-11-02 21:07:27,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 501 transitions, 2310 flow [2022-11-02 21:07:27,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:07:27,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:07:27,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 770 transitions. [2022-11-02 21:07:27,983 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9367396593673966 [2022-11-02 21:07:27,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 770 transitions. [2022-11-02 21:07:27,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 770 transitions. [2022-11-02 21:07:27,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:27,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 770 transitions. [2022-11-02 21:07:27,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:27,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:27,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:27,992 INFO L175 Difference]: Start difference. First operand has 288 places, 470 transitions, 2110 flow. Second operand 3 states and 770 transitions. [2022-11-02 21:07:27,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 501 transitions, 2310 flow [2022-11-02 21:07:28,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 501 transitions, 2118 flow, removed 96 selfloop flow, removed 0 redundant places. [2022-11-02 21:07:28,021 INFO L231 Difference]: Finished difference. Result has 291 places, 472 transitions, 1942 flow [2022-11-02 21:07:28,022 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1918, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1942, PETRI_PLACES=291, PETRI_TRANSITIONS=472} [2022-11-02 21:07:28,025 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 20 predicate places. [2022-11-02 21:07:28,025 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 472 transitions, 1942 flow [2022-11-02 21:07:28,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:28,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:28,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:28,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:07:28,027 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:07:28,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:28,028 INFO L85 PathProgramCache]: Analyzing trace with hash -119349012, now seen corresponding path program 1 times [2022-11-02 21:07:28,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:28,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31053663] [2022-11-02 21:07:28,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:28,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:28,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:28,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31053663] [2022-11-02 21:07:28,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31053663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:28,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:28,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:07:28,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376376849] [2022-11-02 21:07:28,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:28,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:07:28,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:28,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:07:28,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:07:28,505 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 274 [2022-11-02 21:07:28,507 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 472 transitions, 1942 flow. Second operand has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:28,507 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:28,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 274 [2022-11-02 21:07:28,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:33,202 INFO L130 PetriNetUnfolder]: 5581/16323 cut-off events. [2022-11-02 21:07:33,203 INFO L131 PetriNetUnfolder]: For 9459/9485 co-relation queries the response was YES. [2022-11-02 21:07:33,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37718 conditions, 16323 events. 5581/16323 cut-off events. For 9459/9485 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 130807 event pairs, 4152 based on Foata normal form. 0/14776 useless extension candidates. Maximal degree in co-relation 37497. Up to 11067 conditions per place. [2022-11-02 21:07:33,311 INFO L137 encePairwiseOnDemand]: 268/274 looper letters, 327 selfloop transitions, 5 changer transitions 0/471 dead transitions. [2022-11-02 21:07:33,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 471 transitions, 2604 flow [2022-11-02 21:07:33,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:07:33,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:07:33,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-02 21:07:33,314 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-11-02 21:07:33,314 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-02 21:07:33,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-02 21:07:33,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:33,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-02 21:07:33,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:33,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:33,323 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:33,323 INFO L175 Difference]: Start difference. First operand has 291 places, 472 transitions, 1942 flow. Second operand 6 states and 959 transitions. [2022-11-02 21:07:33,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 471 transitions, 2604 flow [2022-11-02 21:07:33,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 471 transitions, 2600 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:07:33,356 INFO L231 Difference]: Finished difference. Result has 294 places, 471 transitions, 1946 flow [2022-11-02 21:07:33,356 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1936, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1946, PETRI_PLACES=294, PETRI_TRANSITIONS=471} [2022-11-02 21:07:33,357 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 23 predicate places. [2022-11-02 21:07:33,357 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 471 transitions, 1946 flow [2022-11-02 21:07:33,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:33,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:33,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:33,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:07:33,359 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:07:33,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:33,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1111224204, now seen corresponding path program 1 times [2022-11-02 21:07:33,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:33,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845326981] [2022-11-02 21:07:33,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:33,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:33,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:33,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:33,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845326981] [2022-11-02 21:07:33,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845326981] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:07:33,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293084011] [2022-11-02 21:07:33,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:33,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:33,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:07:33,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:07:33,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:07:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:33,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:07:33,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:07:33,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:33,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:07:34,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:34,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293084011] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:07:34,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:07:34,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-02 21:07:34,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520472026] [2022-11-02 21:07:34,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:07:34,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:07:34,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:34,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:07:34,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:07:34,085 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 274 [2022-11-02 21:07:34,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 471 transitions, 1946 flow. Second operand has 10 states, 10 states have (on average 236.0) internal successors, (2360), 10 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:34,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:34,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 274 [2022-11-02 21:07:34,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:35,445 INFO L130 PetriNetUnfolder]: 1077/4215 cut-off events. [2022-11-02 21:07:35,445 INFO L131 PetriNetUnfolder]: For 687/699 co-relation queries the response was YES. [2022-11-02 21:07:35,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8403 conditions, 4215 events. 1077/4215 cut-off events. For 687/699 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 26304 event pairs, 96 based on Foata normal form. 2/3983 useless extension candidates. Maximal degree in co-relation 8135. Up to 906 conditions per place. [2022-11-02 21:07:35,478 INFO L137 encePairwiseOnDemand]: 265/274 looper letters, 68 selfloop transitions, 13 changer transitions 0/512 dead transitions. [2022-11-02 21:07:35,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 512 transitions, 2208 flow [2022-11-02 21:07:35,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:07:35,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 21:07:35,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2171 transitions. [2022-11-02 21:07:35,484 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8803730738037308 [2022-11-02 21:07:35,485 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2171 transitions. [2022-11-02 21:07:35,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2171 transitions. [2022-11-02 21:07:35,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:35,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2171 transitions. [2022-11-02 21:07:35,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 241.22222222222223) internal successors, (2171), 9 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:35,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:35,499 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:35,499 INFO L175 Difference]: Start difference. First operand has 294 places, 471 transitions, 1946 flow. Second operand 9 states and 2171 transitions. [2022-11-02 21:07:35,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 512 transitions, 2208 flow [2022-11-02 21:07:35,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 512 transitions, 2182 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:07:35,519 INFO L231 Difference]: Finished difference. Result has 300 places, 478 transitions, 2004 flow [2022-11-02 21:07:35,520 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1936, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2004, PETRI_PLACES=300, PETRI_TRANSITIONS=478} [2022-11-02 21:07:35,523 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 29 predicate places. [2022-11-02 21:07:35,523 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 478 transitions, 2004 flow [2022-11-02 21:07:35,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 236.0) internal successors, (2360), 10 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:35,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:35,525 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:35,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:07:35,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:35,741 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:07:35,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:35,741 INFO L85 PathProgramCache]: Analyzing trace with hash -227998028, now seen corresponding path program 2 times [2022-11-02 21:07:35,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:35,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004959429] [2022-11-02 21:07:35,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:35,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:36,187 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:36,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:36,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004959429] [2022-11-02 21:07:36,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004959429] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:07:36,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433395425] [2022-11-02 21:07:36,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:07:36,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:36,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:07:36,190 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:07:36,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:07:36,366 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 21:07:36,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:07:36,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:07:36,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:07:36,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 21:07:36,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:07:36,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-02 21:07:36,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:07:36,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:07:36,531 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 21:07:36,532 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-02 21:07:36,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:07:36,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:07:36,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 21:07:36,586 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 21:07:36,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-02 21:07:36,624 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-02 21:07:36,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:07:36,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433395425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:36,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:07:36,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-02 21:07:36,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237738460] [2022-11-02 21:07:36,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:36,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:07:36,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:36,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:07:36,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:07:36,629 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 274 [2022-11-02 21:07:36,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 478 transitions, 2004 flow. Second operand has 8 states, 8 states have (on average 156.375) internal successors, (1251), 8 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:36,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:36,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 274 [2022-11-02 21:07:36,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:42,282 INFO L130 PetriNetUnfolder]: 6495/18399 cut-off events. [2022-11-02 21:07:42,282 INFO L131 PetriNetUnfolder]: For 9018/9101 co-relation queries the response was YES. [2022-11-02 21:07:42,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42166 conditions, 18399 events. 6495/18399 cut-off events. For 9018/9101 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 145814 event pairs, 3567 based on Foata normal form. 0/16800 useless extension candidates. Maximal degree in co-relation 41872. Up to 10958 conditions per place. [2022-11-02 21:07:42,436 INFO L137 encePairwiseOnDemand]: 227/274 looper letters, 563 selfloop transitions, 174 changer transitions 0/900 dead transitions. [2022-11-02 21:07:42,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 900 transitions, 4694 flow [2022-11-02 21:07:42,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:07:42,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 21:07:42,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1877 transitions. [2022-11-02 21:07:42,444 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7611516626115167 [2022-11-02 21:07:42,445 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1877 transitions. [2022-11-02 21:07:42,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1877 transitions. [2022-11-02 21:07:42,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:42,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1877 transitions. [2022-11-02 21:07:42,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 208.55555555555554) internal successors, (1877), 9 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:42,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:42,459 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:42,459 INFO L175 Difference]: Start difference. First operand has 300 places, 478 transitions, 2004 flow. Second operand 9 states and 1877 transitions. [2022-11-02 21:07:42,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 900 transitions, 4694 flow [2022-11-02 21:07:42,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 900 transitions, 4684 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-11-02 21:07:42,508 INFO L231 Difference]: Finished difference. Result has 312 places, 640 transitions, 3474 flow [2022-11-02 21:07:42,509 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1994, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3474, PETRI_PLACES=312, PETRI_TRANSITIONS=640} [2022-11-02 21:07:42,512 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 41 predicate places. [2022-11-02 21:07:42,512 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 640 transitions, 3474 flow [2022-11-02 21:07:42,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 156.375) internal successors, (1251), 8 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:42,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:42,514 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:42,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:07:42,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:42,728 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:07:42,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:42,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1836787897, now seen corresponding path program 1 times [2022-11-02 21:07:42,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:42,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876059688] [2022-11-02 21:07:42,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:42,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:43,254 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:43,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:43,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876059688] [2022-11-02 21:07:43,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876059688] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:07:43,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740815055] [2022-11-02 21:07:43,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:43,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:43,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:07:43,257 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:07:43,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 21:07:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:43,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:07:43,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:07:43,806 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:43,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:07:44,061 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:44,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740815055] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:07:44,062 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:07:44,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-02 21:07:44,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526404997] [2022-11-02 21:07:44,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:07:44,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:07:44,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:44,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:07:44,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:07:44,070 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 274 [2022-11-02 21:07:44,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 640 transitions, 3474 flow. Second operand has 18 states, 18 states have (on average 236.66666666666666) internal successors, (4260), 18 states have internal predecessors, (4260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:44,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:44,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 274 [2022-11-02 21:07:44,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:46,356 INFO L130 PetriNetUnfolder]: 2011/6923 cut-off events. [2022-11-02 21:07:46,356 INFO L131 PetriNetUnfolder]: For 9112/9206 co-relation queries the response was YES. [2022-11-02 21:07:46,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19730 conditions, 6923 events. 2011/6923 cut-off events. For 9112/9206 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 46952 event pairs, 174 based on Foata normal form. 4/6565 useless extension candidates. Maximal degree in co-relation 19128. Up to 1697 conditions per place. [2022-11-02 21:07:46,421 INFO L137 encePairwiseOnDemand]: 265/274 looper letters, 164 selfloop transitions, 25 changer transitions 0/750 dead transitions. [2022-11-02 21:07:46,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 750 transitions, 4316 flow [2022-11-02 21:07:46,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-02 21:07:46,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-02 21:07:46,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5001 transitions. [2022-11-02 21:07:46,442 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8691345151199166 [2022-11-02 21:07:46,442 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5001 transitions. [2022-11-02 21:07:46,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5001 transitions. [2022-11-02 21:07:46,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:46,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5001 transitions. [2022-11-02 21:07:46,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 238.14285714285714) internal successors, (5001), 21 states have internal predecessors, (5001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:46,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:46,471 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:46,471 INFO L175 Difference]: Start difference. First operand has 312 places, 640 transitions, 3474 flow. Second operand 21 states and 5001 transitions. [2022-11-02 21:07:46,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 750 transitions, 4316 flow [2022-11-02 21:07:46,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 750 transitions, 4274 flow, removed 18 selfloop flow, removed 3 redundant places. [2022-11-02 21:07:46,522 INFO L231 Difference]: Finished difference. Result has 334 places, 653 transitions, 3576 flow [2022-11-02 21:07:46,523 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=3432, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=625, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3576, PETRI_PLACES=334, PETRI_TRANSITIONS=653} [2022-11-02 21:07:46,523 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 63 predicate places. [2022-11-02 21:07:46,524 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 653 transitions, 3576 flow [2022-11-02 21:07:46,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 236.66666666666666) internal successors, (4260), 18 states have internal predecessors, (4260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:46,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:46,526 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:46,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:07:46,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 21:07:46,744 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:07:46,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:46,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1455200967, now seen corresponding path program 2 times [2022-11-02 21:07:46,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:46,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756386372] [2022-11-02 21:07:46,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:46,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:47,826 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:47,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:47,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756386372] [2022-11-02 21:07:47,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756386372] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:07:47,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688009301] [2022-11-02 21:07:47,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:07:47,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:47,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:07:47,828 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:07:47,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 21:07:48,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 21:07:48,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:07:48,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 21:07:48,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:07:48,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 21:07:48,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-02 21:07:48,178 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 21:07:48,178 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-02 21:07:48,216 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 21:07:48,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-02 21:07:48,253 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2022-11-02 21:07:48,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:07:48,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688009301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:48,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:07:48,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-02 21:07:48,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383709197] [2022-11-02 21:07:48,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:48,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:07:48,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:48,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:07:48,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:07:48,257 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 274 [2022-11-02 21:07:48,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 653 transitions, 3576 flow. Second operand has 6 states, 6 states have (on average 160.16666666666666) internal successors, (961), 6 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:48,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:48,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 274 [2022-11-02 21:07:48,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:56,891 INFO L130 PetriNetUnfolder]: 6860/20088 cut-off events. [2022-11-02 21:07:56,891 INFO L131 PetriNetUnfolder]: For 33995/34083 co-relation queries the response was YES. [2022-11-02 21:07:56,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63613 conditions, 20088 events. 6860/20088 cut-off events. For 33995/34083 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 163204 event pairs, 3402 based on Foata normal form. 0/18558 useless extension candidates. Maximal degree in co-relation 62947. Up to 12645 conditions per place. [2022-11-02 21:07:57,072 INFO L137 encePairwiseOnDemand]: 231/274 looper letters, 539 selfloop transitions, 170 changer transitions 0/888 dead transitions. [2022-11-02 21:07:57,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 888 transitions, 6820 flow [2022-11-02 21:07:57,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:07:57,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:07:57,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1265 transitions. [2022-11-02 21:07:57,077 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7694647201946472 [2022-11-02 21:07:57,077 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1265 transitions. [2022-11-02 21:07:57,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1265 transitions. [2022-11-02 21:07:57,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:57,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1265 transitions. [2022-11-02 21:07:57,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.83333333333334) internal successors, (1265), 6 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:57,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:57,086 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:57,086 INFO L175 Difference]: Start difference. First operand has 334 places, 653 transitions, 3576 flow. Second operand 6 states and 1265 transitions. [2022-11-02 21:07:57,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 888 transitions, 6820 flow [2022-11-02 21:07:57,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 888 transitions, 6794 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-02 21:07:57,179 INFO L231 Difference]: Finished difference. Result has 338 places, 814 transitions, 5964 flow [2022-11-02 21:07:57,180 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=3550, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=653, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5964, PETRI_PLACES=338, PETRI_TRANSITIONS=814} [2022-11-02 21:07:57,182 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 67 predicate places. [2022-11-02 21:07:57,183 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 814 transitions, 5964 flow [2022-11-02 21:07:57,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.16666666666666) internal successors, (961), 6 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:07:57,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:57,184 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:57,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:07:57,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-02 21:07:57,399 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:07:57,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:57,400 INFO L85 PathProgramCache]: Analyzing trace with hash 2064043383, now seen corresponding path program 1 times [2022-11-02 21:07:57,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:57,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894882565] [2022-11-02 21:07:57,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:57,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:58,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:58,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894882565] [2022-11-02 21:07:58,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894882565] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:07:58,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068042465] [2022-11-02 21:07:58,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:58,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:58,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:07:58,588 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:07:58,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 21:07:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:59,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 21:07:59,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:07:59,631 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:07:59,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:08:00,245 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:00,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068042465] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:08:00,246 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:08:00,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-02 21:08:00,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114673762] [2022-11-02 21:08:00,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:08:00,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-02 21:08:00,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:00,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-02 21:08:00,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:08:00,258 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 274 [2022-11-02 21:08:00,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 814 transitions, 5964 flow. Second operand has 23 states, 23 states have (on average 237.2608695652174) internal successors, (5457), 23 states have internal predecessors, (5457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:00,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:08:00,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 274 [2022-11-02 21:08:00,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:08:03,997 INFO L130 PetriNetUnfolder]: 2734/9294 cut-off events. [2022-11-02 21:08:03,998 INFO L131 PetriNetUnfolder]: For 21387/23608 co-relation queries the response was YES. [2022-11-02 21:08:04,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30544 conditions, 9294 events. 2734/9294 cut-off events. For 21387/23608 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 66458 event pairs, 230 based on Foata normal form. 3/8883 useless extension candidates. Maximal degree in co-relation 29659. Up to 2463 conditions per place. [2022-11-02 21:08:04,064 INFO L137 encePairwiseOnDemand]: 265/274 looper letters, 252 selfloop transitions, 34 changer transitions 0/976 dead transitions. [2022-11-02 21:08:04,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 976 transitions, 7540 flow [2022-11-02 21:08:04,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-02 21:08:04,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-02 21:08:04,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7121 transitions. [2022-11-02 21:08:04,080 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.866301703163017 [2022-11-02 21:08:04,080 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7121 transitions. [2022-11-02 21:08:04,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7121 transitions. [2022-11-02 21:08:04,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:04,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7121 transitions. [2022-11-02 21:08:04,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 237.36666666666667) internal successors, (7121), 30 states have internal predecessors, (7121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:04,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 274.0) internal successors, (8494), 31 states have internal predecessors, (8494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:04,115 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 274.0) internal successors, (8494), 31 states have internal predecessors, (8494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:04,115 INFO L175 Difference]: Start difference. First operand has 338 places, 814 transitions, 5964 flow. Second operand 30 states and 7121 transitions. [2022-11-02 21:08:04,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 976 transitions, 7540 flow [2022-11-02 21:08:04,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 976 transitions, 6084 flow, removed 728 selfloop flow, removed 0 redundant places. [2022-11-02 21:08:04,222 INFO L231 Difference]: Finished difference. Result has 371 places, 824 transitions, 4930 flow [2022-11-02 21:08:04,223 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=4764, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=814, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=787, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4930, PETRI_PLACES=371, PETRI_TRANSITIONS=824} [2022-11-02 21:08:04,224 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 100 predicate places. [2022-11-02 21:08:04,225 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 824 transitions, 4930 flow [2022-11-02 21:08:04,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 237.2608695652174) internal successors, (5457), 23 states have internal predecessors, (5457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:04,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:08:04,227 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:08:04,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:04,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_863d9f2b-0d38-4d72-9051-362ac58b494a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:08:04,448 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:08:04,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:04,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1082179861, now seen corresponding path program 2 times [2022-11-02 21:08:04,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:04,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250035738] [2022-11-02 21:08:04,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:04,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:07,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-02 21:08:07,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:07,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250035738] [2022-11-02 21:08:07,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250035738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:07,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:07,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:08:07,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560417808] [2022-11-02 21:08:07,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:07,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:08:07,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:07,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:08:07,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:08:07,073 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 274 [2022-11-02 21:08:07,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 824 transitions, 4930 flow. Second operand has 11 states, 11 states have (on average 137.0909090909091) internal successors, (1508), 11 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:07,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:08:07,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 274 [2022-11-02 21:08:07,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:08:26,955 INFO L130 PetriNetUnfolder]: 15039/41630 cut-off events. [2022-11-02 21:08:26,955 INFO L131 PetriNetUnfolder]: For 99322/99954 co-relation queries the response was YES. [2022-11-02 21:08:27,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143984 conditions, 41630 events. 15039/41630 cut-off events. For 99322/99954 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 385099 event pairs, 875 based on Foata normal form. 264/38962 useless extension candidates. Maximal degree in co-relation 142942. Up to 13736 conditions per place. [2022-11-02 21:08:27,311 INFO L137 encePairwiseOnDemand]: 218/274 looper letters, 1524 selfloop transitions, 424 changer transitions 0/2115 dead transitions. [2022-11-02 21:08:27,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 2115 transitions, 16816 flow [2022-11-02 21:08:27,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-02 21:08:27,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-02 21:08:27,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 6686 transitions. [2022-11-02 21:08:27,326 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5809871393813 [2022-11-02 21:08:27,326 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 6686 transitions. [2022-11-02 21:08:27,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 6686 transitions. [2022-11-02 21:08:27,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:27,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 6686 transitions. [2022-11-02 21:08:27,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 159.1904761904762) internal successors, (6686), 42 states have internal predecessors, (6686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:27,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 274.0) internal successors, (11782), 43 states have internal predecessors, (11782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:27,362 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 274.0) internal successors, (11782), 43 states have internal predecessors, (11782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:27,362 INFO L175 Difference]: Start difference. First operand has 371 places, 824 transitions, 4930 flow. Second operand 42 states and 6686 transitions. [2022-11-02 21:08:27,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 2115 transitions, 16816 flow [2022-11-02 21:08:27,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 2115 transitions, 16768 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-02 21:08:27,649 INFO L231 Difference]: Finished difference. Result has 413 places, 1109 transitions, 8413 flow [2022-11-02 21:08:27,650 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=4882, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=8413, PETRI_PLACES=413, PETRI_TRANSITIONS=1109} [2022-11-02 21:08:27,650 INFO L287 CegarLoopForPetriNet]: 271 programPoint places, 142 predicate places. [2022-11-02 21:08:27,651 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 1109 transitions, 8413 flow [2022-11-02 21:08:27,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 137.0909090909091) internal successors, (1508), 11 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:27,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:08:27,653 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:08:27,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:08:27,653 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 21:08:27,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:27,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1811982851, now seen corresponding path program 1 times [2022-11-02 21:08:27,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:27,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735443057] [2022-11-02 21:08:27,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:27,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:30,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-02 21:08:30,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:30,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735443057] [2022-11-02 21:08:30,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735443057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:30,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:30,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:08:30,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888138282] [2022-11-02 21:08:30,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:30,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:08:30,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:30,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:08:30,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:08:30,242 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 274 [2022-11-02 21:08:30,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 1109 transitions, 8413 flow. Second operand has 11 states, 11 states have (on average 135.27272727272728) internal successors, (1488), 11 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:30,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:08:30,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 274 [2022-11-02 21:08:30,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand