./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8 --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 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --- 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-e04fb08 [2022-11-16 10:54:10,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:54:10,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:54:10,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:54:10,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:54:10,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:54:10,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:54:10,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:54:10,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:54:10,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:54:10,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:54:10,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:54:10,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:54:10,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:54:10,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:54:10,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:54:10,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:54:10,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:54:10,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:54:10,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:54:10,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:54:10,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:54:10,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:54:10,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:54:10,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:54:10,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:54:10,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:54:10,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:54:10,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:54:10,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:54:10,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:54:10,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:54:10,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:54:10,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:54:10,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:54:10,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:54:10,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:54:10,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:54:10,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:54:10,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:54:10,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:54:10,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 10:54:10,652 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:54:10,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:54:10,654 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:54:10,654 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:54:10,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:54:10,656 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:54:10,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:54:10,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:54:10,657 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:54:10,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:54:10,658 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:54:10,659 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 10:54:10,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:54:10,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:54:10,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:54:10,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:54:10,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:54:10,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:54:10,660 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 10:54:10,660 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:54:10,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:54:10,661 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:54:10,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:54:10,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:54:10,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:54:10,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:54:10,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:54:10,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:54:10,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:54:10,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:54:10,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:54:10,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:54:10,664 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:54:10,664 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:54:10,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:54:10,665 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_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 [2022-11-16 10:54:10,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:54:10,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:54:10,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:54:10,995 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:54:10,996 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:54:10,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-11-16 10:54:11,060 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/data/e1608bb2b/b73cb98e6dcb46c1907e97dfd273afe1/FLAG80ea2cfd9 [2022-11-16 10:54:11,501 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:54:11,502 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-11-16 10:54:11,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/data/e1608bb2b/b73cb98e6dcb46c1907e97dfd273afe1/FLAG80ea2cfd9 [2022-11-16 10:54:11,882 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/data/e1608bb2b/b73cb98e6dcb46c1907e97dfd273afe1 [2022-11-16 10:54:11,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:54:11,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:54:11,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:54:11,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:54:11,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:54:11,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:11" (1/1) ... [2022-11-16 10:54:11,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39433660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:11, skipping insertion in model container [2022-11-16 10:54:11,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:11" (1/1) ... [2022-11-16 10:54:11,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:54:11,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:54:12,175 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-11-16 10:54:12,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:54:12,185 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:54:12,227 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-11-16 10:54:12,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:54:12,243 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:54:12,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:12 WrapperNode [2022-11-16 10:54:12,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:54:12,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:54:12,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:54:12,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:54:12,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:12" (1/1) ... [2022-11-16 10:54:12,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:12" (1/1) ... [2022-11-16 10:54:12,321 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 531 [2022-11-16 10:54:12,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:54:12,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:54:12,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:54:12,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:54:12,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:12" (1/1) ... [2022-11-16 10:54:12,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:12" (1/1) ... [2022-11-16 10:54:12,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:12" (1/1) ... [2022-11-16 10:54:12,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:12" (1/1) ... [2022-11-16 10:54:12,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:12" (1/1) ... [2022-11-16 10:54:12,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:12" (1/1) ... [2022-11-16 10:54:12,356 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:12" (1/1) ... [2022-11-16 10:54:12,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:12" (1/1) ... [2022-11-16 10:54:12,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:54:12,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:54:12,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:54:12,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:54:12,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:12" (1/1) ... [2022-11-16 10:54:12,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:54:12,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:54:12,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:54:12,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c028bdc-f011-45af-b3b3-fa0082935863/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:54:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:54:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:54:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:54:12,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:54:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 10:54:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 10:54:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 10:54:12,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 10:54:12,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 10:54:12,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 10:54:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 10:54:12,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 10:54:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:54:12,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-16 10:54:12,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-16 10:54:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-16 10:54:12,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-16 10:54:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 10:54:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 10:54:12,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:54:12,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:54:12,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:54:12,467 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 10:54:12,619 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:54:12,621 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:54:13,489 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:54:13,755 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:54:13,755 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 10:54:13,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:54:13 BoogieIcfgContainer [2022-11-16 10:54:13,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:54:13,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:54:13,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:54:13,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:54:13,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:54:11" (1/3) ... [2022-11-16 10:54:13,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83ae214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:54:13, skipping insertion in model container [2022-11-16 10:54:13,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:12" (2/3) ... [2022-11-16 10:54:13,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83ae214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:54:13, skipping insertion in model container [2022-11-16 10:54:13,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:54:13" (3/3) ... [2022-11-16 10:54:13,770 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2022-11-16 10:54:13,784 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 10:54:13,794 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:54:13,796 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-11-16 10:54:13,796 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 10:54:13,965 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-16 10:54:14,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 469 places, 464 transitions, 1000 flow [2022-11-16 10:54:14,274 INFO L130 PetriNetUnfolder]: 14/424 cut-off events. [2022-11-16 10:54:14,274 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 10:54:14,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 424 events. 14/424 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 749 event pairs, 0 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 355. Up to 3 conditions per place. [2022-11-16 10:54:14,297 INFO L82 GeneralOperation]: Start removeDead. Operand has 469 places, 464 transitions, 1000 flow [2022-11-16 10:54:14,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 410 places, 403 transitions, 854 flow [2022-11-16 10:54:14,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:54:14,337 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;@5ab93b0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:54:14,338 INFO L358 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2022-11-16 10:54:14,344 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-16 10:54:14,345 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 10:54:14,346 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:14,346 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:14,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-16 10:54:14,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:14,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1965857495, now seen corresponding path program 1 times [2022-11-16 10:54:14,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:14,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902962491] [2022-11-16 10:54:14,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:14,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:14,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:54:14,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:14,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902962491] [2022-11-16 10:54:14,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902962491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:14,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:14,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:14,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801929126] [2022-11-16 10:54:14,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:14,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:14,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:14,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:14,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:14,701 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 468 [2022-11-16 10:54:14,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 403 transitions, 854 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:14,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:14,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 468 [2022-11-16 10:54:14,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:21,674 INFO L130 PetriNetUnfolder]: 11990/19790 cut-off events. [2022-11-16 10:54:21,674 INFO L131 PetriNetUnfolder]: For 5271/6042 co-relation queries the response was YES. [2022-11-16 10:54:21,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40866 conditions, 19790 events. 11990/19790 cut-off events. For 5271/6042 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 139451 event pairs, 10899 based on Foata normal form. 82/18225 useless extension candidates. Maximal degree in co-relation 40063. Up to 16543 conditions per place. [2022-11-16 10:54:22,064 INFO L137 encePairwiseOnDemand]: 418/468 looper letters, 52 selfloop transitions, 2 changer transitions 1/355 dead transitions. [2022-11-16 10:54:22,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 355 transitions, 866 flow [2022-11-16 10:54:22,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:22,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:22,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1170 transitions. [2022-11-16 10:54:22,090 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-11-16 10:54:22,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1170 transitions. [2022-11-16 10:54:22,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1170 transitions. [2022-11-16 10:54:22,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:22,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1170 transitions. [2022-11-16 10:54:22,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:22,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:22,120 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:22,122 INFO L175 Difference]: Start difference. First operand has 410 places, 403 transitions, 854 flow. Second operand 3 states and 1170 transitions. [2022-11-16 10:54:22,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 355 transitions, 866 flow [2022-11-16 10:54:22,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 355 transitions, 834 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-16 10:54:22,212 INFO L231 Difference]: Finished difference. Result has 355 places, 354 transitions, 728 flow [2022-11-16 10:54:22,215 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=728, PETRI_PLACES=355, PETRI_TRANSITIONS=354} [2022-11-16 10:54:22,219 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -55 predicate places. [2022-11-16 10:54:22,219 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 354 transitions, 728 flow [2022-11-16 10:54:22,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:22,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:22,221 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:22,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:54:22,221 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-16 10:54:22,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:22,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2120778836, now seen corresponding path program 1 times [2022-11-16 10:54:22,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:22,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611716477] [2022-11-16 10:54:22,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:22,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:22,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:54:22,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:22,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611716477] [2022-11-16 10:54:22,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611716477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:22,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:22,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:22,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673692140] [2022-11-16 10:54:22,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:22,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:22,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:22,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:22,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:22,342 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 468 [2022-11-16 10:54:22,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 354 transitions, 728 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:22,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:22,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 468 [2022-11-16 10:54:22,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:26,492 INFO L130 PetriNetUnfolder]: 11990/19779 cut-off events. [2022-11-16 10:54:26,492 INFO L131 PetriNetUnfolder]: For 1146/1888 co-relation queries the response was YES. [2022-11-16 10:54:26,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37477 conditions, 19779 events. 11990/19779 cut-off events. For 1146/1888 co-relation queries the response was YES. Maximal size of possible extension queue 761. Compared 139356 event pairs, 10899 based on Foata normal form. 0/18146 useless extension candidates. Maximal degree in co-relation 37437. Up to 16543 conditions per place. [2022-11-16 10:54:26,742 INFO L137 encePairwiseOnDemand]: 465/468 looper letters, 52 selfloop transitions, 2 changer transitions 0/353 dead transitions. [2022-11-16 10:54:26,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 353 transitions, 834 flow [2022-11-16 10:54:26,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:26,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1123 transitions. [2022-11-16 10:54:26,745 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7998575498575499 [2022-11-16 10:54:26,745 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1123 transitions. [2022-11-16 10:54:26,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1123 transitions. [2022-11-16 10:54:26,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:26,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1123 transitions. [2022-11-16 10:54:26,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:26,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:26,753 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:26,754 INFO L175 Difference]: Start difference. First operand has 355 places, 354 transitions, 728 flow. Second operand 3 states and 1123 transitions. [2022-11-16 10:54:26,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 353 transitions, 834 flow [2022-11-16 10:54:26,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 353 transitions, 830 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:26,760 INFO L231 Difference]: Finished difference. Result has 353 places, 353 transitions, 726 flow [2022-11-16 10:54:26,761 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=726, PETRI_PLACES=353, PETRI_TRANSITIONS=353} [2022-11-16 10:54:26,762 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -57 predicate places. [2022-11-16 10:54:26,762 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 353 transitions, 726 flow [2022-11-16 10:54:26,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:26,763 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:26,763 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:26,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 10:54:26,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-16 10:54:26,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:26,764 INFO L85 PathProgramCache]: Analyzing trace with hash -528081187, now seen corresponding path program 1 times [2022-11-16 10:54:26,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:26,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067701126] [2022-11-16 10:54:26,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:26,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:26,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:54:26,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:26,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067701126] [2022-11-16 10:54:26,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067701126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:26,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:26,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:26,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254506403] [2022-11-16 10:54:26,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:26,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:26,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:26,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:26,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:26,859 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 468 [2022-11-16 10:54:26,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 353 transitions, 726 flow. Second operand has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:26,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:26,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 468 [2022-11-16 10:54:26,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:30,856 INFO L130 PetriNetUnfolder]: 12058/19954 cut-off events. [2022-11-16 10:54:30,857 INFO L131 PetriNetUnfolder]: For 1146/1950 co-relation queries the response was YES. [2022-11-16 10:54:30,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37776 conditions, 19954 events. 12058/19954 cut-off events. For 1146/1950 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 140808 event pairs, 10899 based on Foata normal form. 0/18289 useless extension candidates. Maximal degree in co-relation 37729. Up to 16602 conditions per place. [2022-11-16 10:54:31,087 INFO L137 encePairwiseOnDemand]: 465/468 looper letters, 46 selfloop transitions, 2 changer transitions 0/352 dead transitions. [2022-11-16 10:54:31,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 352 transitions, 820 flow [2022-11-16 10:54:31,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:31,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:31,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1135 transitions. [2022-11-16 10:54:31,091 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8084045584045584 [2022-11-16 10:54:31,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1135 transitions. [2022-11-16 10:54:31,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1135 transitions. [2022-11-16 10:54:31,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:31,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1135 transitions. [2022-11-16 10:54:31,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.3333333333333) internal successors, (1135), 3 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:31,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:31,100 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:31,100 INFO L175 Difference]: Start difference. First operand has 353 places, 353 transitions, 726 flow. Second operand 3 states and 1135 transitions. [2022-11-16 10:54:31,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 352 transitions, 820 flow [2022-11-16 10:54:31,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 352 transitions, 816 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:31,108 INFO L231 Difference]: Finished difference. Result has 352 places, 352 transitions, 724 flow [2022-11-16 10:54:31,109 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=352, PETRI_TRANSITIONS=352} [2022-11-16 10:54:31,112 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -58 predicate places. [2022-11-16 10:54:31,113 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 352 transitions, 724 flow [2022-11-16 10:54:31,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:31,114 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:31,114 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:31,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 10:54:31,114 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-16 10:54:31,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:31,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1949002818, now seen corresponding path program 1 times [2022-11-16 10:54:31,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:31,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483183063] [2022-11-16 10:54:31,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:31,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:31,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:54:31,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:31,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483183063] [2022-11-16 10:54:31,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483183063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:31,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:31,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:31,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373689314] [2022-11-16 10:54:31,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:31,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:31,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:31,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:31,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:31,210 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 468 [2022-11-16 10:54:31,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 352 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:31,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:31,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 468 [2022-11-16 10:54:31,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:35,369 INFO L130 PetriNetUnfolder]: 12055/19932 cut-off events. [2022-11-16 10:54:35,369 INFO L131 PetriNetUnfolder]: For 1146/1950 co-relation queries the response was YES. [2022-11-16 10:54:35,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37754 conditions, 19932 events. 12055/19932 cut-off events. For 1146/1950 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 141240 event pairs, 10899 based on Foata normal form. 0/18275 useless extension candidates. Maximal degree in co-relation 37701. Up to 16602 conditions per place. [2022-11-16 10:54:35,553 INFO L137 encePairwiseOnDemand]: 465/468 looper letters, 46 selfloop transitions, 2 changer transitions 0/351 dead transitions. [2022-11-16 10:54:35,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 351 transitions, 818 flow [2022-11-16 10:54:35,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:35,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:35,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1135 transitions. [2022-11-16 10:54:35,557 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8084045584045584 [2022-11-16 10:54:35,558 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1135 transitions. [2022-11-16 10:54:35,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1135 transitions. [2022-11-16 10:54:35,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:35,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1135 transitions. [2022-11-16 10:54:35,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.3333333333333) internal successors, (1135), 3 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:35,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:35,566 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:35,566 INFO L175 Difference]: Start difference. First operand has 352 places, 352 transitions, 724 flow. Second operand 3 states and 1135 transitions. [2022-11-16 10:54:35,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 351 transitions, 818 flow [2022-11-16 10:54:35,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 351 transitions, 814 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:35,573 INFO L231 Difference]: Finished difference. Result has 351 places, 351 transitions, 722 flow [2022-11-16 10:54:35,574 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=351, PETRI_TRANSITIONS=351} [2022-11-16 10:54:35,575 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -59 predicate places. [2022-11-16 10:54:35,575 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 351 transitions, 722 flow [2022-11-16 10:54:35,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:35,576 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:35,576 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:35,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 10:54:35,576 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-16 10:54:35,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:35,577 INFO L85 PathProgramCache]: Analyzing trace with hash 475784022, now seen corresponding path program 1 times [2022-11-16 10:54:35,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:35,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012854926] [2022-11-16 10:54:35,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:35,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:35,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:54:35,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:35,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012854926] [2022-11-16 10:54:35,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012854926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:35,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:35,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:35,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459313581] [2022-11-16 10:54:35,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:35,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:35,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:35,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:35,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:35,620 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 468 [2022-11-16 10:54:35,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 351 transitions, 722 flow. Second operand has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:35,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:35,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 468 [2022-11-16 10:54:35,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:39,573 INFO L130 PetriNetUnfolder]: 11625/19107 cut-off events. [2022-11-16 10:54:39,574 INFO L131 PetriNetUnfolder]: For 1122/1822 co-relation queries the response was YES. [2022-11-16 10:54:39,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36211 conditions, 19107 events. 11625/19107 cut-off events. For 1122/1822 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 134842 event pairs, 10560 based on Foata normal form. 0/17630 useless extension candidates. Maximal degree in co-relation 36152. Up to 15976 conditions per place. [2022-11-16 10:54:39,982 INFO L137 encePairwiseOnDemand]: 465/468 looper letters, 43 selfloop transitions, 2 changer transitions 0/350 dead transitions. [2022-11-16 10:54:39,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 350 transitions, 810 flow [2022-11-16 10:54:39,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:39,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:39,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2022-11-16 10:54:39,993 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8126780626780626 [2022-11-16 10:54:39,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2022-11-16 10:54:39,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2022-11-16 10:54:39,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:39,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2022-11-16 10:54:39,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:40,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:40,001 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:40,001 INFO L175 Difference]: Start difference. First operand has 351 places, 351 transitions, 722 flow. Second operand 3 states and 1141 transitions. [2022-11-16 10:54:40,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 350 transitions, 810 flow [2022-11-16 10:54:40,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 350 transitions, 806 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:40,008 INFO L231 Difference]: Finished difference. Result has 350 places, 350 transitions, 720 flow [2022-11-16 10:54:40,008 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=720, PETRI_PLACES=350, PETRI_TRANSITIONS=350} [2022-11-16 10:54:40,009 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -60 predicate places. [2022-11-16 10:54:40,009 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 350 transitions, 720 flow [2022-11-16 10:54:40,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:40,010 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:40,010 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:40,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 10:54:40,011 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-16 10:54:40,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:40,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1542092607, now seen corresponding path program 1 times [2022-11-16 10:54:40,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:40,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541689647] [2022-11-16 10:54:40,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:40,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:54:40,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:40,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541689647] [2022-11-16 10:54:40,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541689647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:40,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:40,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:40,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612187994] [2022-11-16 10:54:40,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:40,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:40,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:40,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:40,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:40,053 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 468 [2022-11-16 10:54:40,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 350 transitions, 720 flow. Second operand has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:40,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:40,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 468 [2022-11-16 10:54:40,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:43,617 INFO L130 PetriNetUnfolder]: 11625/19106 cut-off events. [2022-11-16 10:54:43,617 INFO L131 PetriNetUnfolder]: For 1122/1822 co-relation queries the response was YES. [2022-11-16 10:54:43,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36210 conditions, 19106 events. 11625/19106 cut-off events. For 1122/1822 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 135114 event pairs, 10560 based on Foata normal form. 0/17630 useless extension candidates. Maximal degree in co-relation 36144. Up to 15976 conditions per place. [2022-11-16 10:54:44,061 INFO L137 encePairwiseOnDemand]: 465/468 looper letters, 43 selfloop transitions, 2 changer transitions 0/349 dead transitions. [2022-11-16 10:54:44,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 349 transitions, 808 flow [2022-11-16 10:54:44,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:44,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:44,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2022-11-16 10:54:44,072 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8126780626780626 [2022-11-16 10:54:44,072 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2022-11-16 10:54:44,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2022-11-16 10:54:44,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:44,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2022-11-16 10:54:44,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:44,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:44,080 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:44,080 INFO L175 Difference]: Start difference. First operand has 350 places, 350 transitions, 720 flow. Second operand 3 states and 1141 transitions. [2022-11-16 10:54:44,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 349 transitions, 808 flow [2022-11-16 10:54:44,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 349 transitions, 804 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:44,087 INFO L231 Difference]: Finished difference. Result has 349 places, 349 transitions, 718 flow [2022-11-16 10:54:44,088 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=349, PETRI_TRANSITIONS=349} [2022-11-16 10:54:44,089 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -61 predicate places. [2022-11-16 10:54:44,089 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 349 transitions, 718 flow [2022-11-16 10:54:44,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:44,090 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:44,090 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:44,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 10:54:44,090 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-16 10:54:44,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:44,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1945465366, now seen corresponding path program 1 times [2022-11-16 10:54:44,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:44,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874526726] [2022-11-16 10:54:44,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:44,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:44,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:54:44,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:44,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874526726] [2022-11-16 10:54:44,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874526726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:44,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:44,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:44,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456417010] [2022-11-16 10:54:44,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:44,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:44,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:44,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:44,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:44,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 468 [2022-11-16 10:54:44,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 349 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:44,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:44,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 468 [2022-11-16 10:54:44,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:48,015 INFO L130 PetriNetUnfolder]: 11988/19786 cut-off events. [2022-11-16 10:54:48,015 INFO L131 PetriNetUnfolder]: For 1149/1849 co-relation queries the response was YES. [2022-11-16 10:54:48,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37481 conditions, 19786 events. 11988/19786 cut-off events. For 1149/1849 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 140046 event pairs, 10899 based on Foata normal form. 0/18213 useless extension candidates. Maximal degree in co-relation 37408. Up to 16543 conditions per place. [2022-11-16 10:54:48,221 INFO L137 encePairwiseOnDemand]: 465/468 looper letters, 52 selfloop transitions, 2 changer transitions 0/348 dead transitions. [2022-11-16 10:54:48,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 348 transitions, 824 flow [2022-11-16 10:54:48,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:48,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:48,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1123 transitions. [2022-11-16 10:54:48,225 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7998575498575499 [2022-11-16 10:54:48,225 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1123 transitions. [2022-11-16 10:54:48,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1123 transitions. [2022-11-16 10:54:48,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:48,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1123 transitions. [2022-11-16 10:54:48,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:48,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:48,233 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:48,234 INFO L175 Difference]: Start difference. First operand has 349 places, 349 transitions, 718 flow. Second operand 3 states and 1123 transitions. [2022-11-16 10:54:48,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 348 transitions, 824 flow [2022-11-16 10:54:48,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 348 transitions, 820 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:48,242 INFO L231 Difference]: Finished difference. Result has 348 places, 348 transitions, 716 flow [2022-11-16 10:54:48,243 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=348, PETRI_TRANSITIONS=348} [2022-11-16 10:54:48,243 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -62 predicate places. [2022-11-16 10:54:48,243 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 348 transitions, 716 flow [2022-11-16 10:54:48,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:48,244 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:48,244 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:48,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 10:54:48,245 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-16 10:54:48,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:48,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1818055313, now seen corresponding path program 1 times [2022-11-16 10:54:48,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:48,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982814289] [2022-11-16 10:54:48,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:48,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:54:48,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:48,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982814289] [2022-11-16 10:54:48,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982814289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:48,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:48,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:48,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440559147] [2022-11-16 10:54:48,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:48,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:48,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:48,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:48,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:48,328 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 468 [2022-11-16 10:54:48,330 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 348 transitions, 716 flow. Second operand has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:48,330 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:48,330 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 468 [2022-11-16 10:54:48,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:54:51,983 INFO L130 PetriNetUnfolder]: 11625/19104 cut-off events. [2022-11-16 10:54:51,983 INFO L131 PetriNetUnfolder]: For 1122/1822 co-relation queries the response was YES. [2022-11-16 10:54:52,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36208 conditions, 19104 events. 11625/19104 cut-off events. For 1122/1822 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 134904 event pairs, 10560 based on Foata normal form. 0/17630 useless extension candidates. Maximal degree in co-relation 36128. Up to 15976 conditions per place. [2022-11-16 10:54:52,176 INFO L137 encePairwiseOnDemand]: 465/468 looper letters, 43 selfloop transitions, 2 changer transitions 0/347 dead transitions. [2022-11-16 10:54:52,177 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 347 transitions, 804 flow [2022-11-16 10:54:52,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:54:52,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:54:52,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2022-11-16 10:54:52,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8126780626780626 [2022-11-16 10:54:52,181 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2022-11-16 10:54:52,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2022-11-16 10:54:52,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:54:52,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2022-11-16 10:54:52,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:52,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:52,187 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:52,187 INFO L175 Difference]: Start difference. First operand has 348 places, 348 transitions, 716 flow. Second operand 3 states and 1141 transitions. [2022-11-16 10:54:52,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 347 transitions, 804 flow [2022-11-16 10:54:52,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 347 transitions, 800 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:54:52,194 INFO L231 Difference]: Finished difference. Result has 347 places, 347 transitions, 714 flow [2022-11-16 10:54:52,194 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=714, PETRI_PLACES=347, PETRI_TRANSITIONS=347} [2022-11-16 10:54:52,195 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -63 predicate places. [2022-11-16 10:54:52,195 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 347 transitions, 714 flow [2022-11-16 10:54:52,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:52,196 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:54:52,196 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:54:52,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 10:54:52,197 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-16 10:54:52,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:54:52,197 INFO L85 PathProgramCache]: Analyzing trace with hash 588829888, now seen corresponding path program 1 times [2022-11-16 10:54:52,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:54:52,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33471155] [2022-11-16 10:54:52,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:54:52,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:54:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:54:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:54:52,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:54:52,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33471155] [2022-11-16 10:54:52,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33471155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:54:52,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:54:52,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:54:52,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173579431] [2022-11-16 10:54:52,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:54:52,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:54:52,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:54:52,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:54:52,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:54:52,237 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 468 [2022-11-16 10:54:52,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 347 transitions, 714 flow. Second operand has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 10:54:52,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:54:52,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 468 [2022-11-16 10:54:52,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand