./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/unroll-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 199b95a7803e428766b942c5c5c486b02a8ea32baf687cdef6ce754bef283884 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 14:02:19,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 14:02:19,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 14:02:19,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 14:02:19,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 14:02:19,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 14:02:19,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 14:02:19,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 14:02:19,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 14:02:19,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 14:02:19,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 14:02:19,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 14:02:19,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 14:02:19,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 14:02:19,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 14:02:19,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 14:02:19,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 14:02:19,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 14:02:19,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 14:02:19,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 14:02:19,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 14:02:19,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 14:02:19,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 14:02:19,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 14:02:19,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 14:02:19,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 14:02:19,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 14:02:19,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 14:02:19,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 14:02:19,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 14:02:19,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 14:02:19,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 14:02:19,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 14:02:19,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 14:02:19,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 14:02:19,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 14:02:19,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 14:02:19,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 14:02:19,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 14:02:19,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 14:02:19,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 14:02:19,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 14:02:19,581 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 14:02:19,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 14:02:19,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 14:02:19,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 14:02:19,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 14:02:19,591 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 14:02:19,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 14:02:19,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 14:02:19,592 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 14:02:19,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 14:02:19,593 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 14:02:19,594 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 14:02:19,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 14:02:19,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 14:02:19,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 14:02:19,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 14:02:19,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 14:02:19,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 14:02:19,595 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 14:02:19,595 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 14:02:19,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 14:02:19,596 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 14:02:19,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 14:02:19,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 14:02:19,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 14:02:19,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 14:02:19,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:02:19,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 14:02:19,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 14:02:19,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 14:02:19,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 14:02:19,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 14:02:19,598 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 14:02:19,598 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 14:02:19,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 14:02:19,599 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_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 199b95a7803e428766b942c5c5c486b02a8ea32baf687cdef6ce754bef283884 [2022-11-21 14:02:19,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 14:02:19,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 14:02:19,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 14:02:19,906 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 14:02:19,906 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 14:02:19,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/unroll-3.wvr.c [2022-11-21 14:02:23,058 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 14:02:23,255 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 14:02:23,256 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/sv-benchmarks/c/weaver/unroll-3.wvr.c [2022-11-21 14:02:23,263 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/data/270df77aa/699bac9c3701425bb9d637b6db2e58dc/FLAG0443ea3f4 [2022-11-21 14:02:23,279 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/data/270df77aa/699bac9c3701425bb9d637b6db2e58dc [2022-11-21 14:02:23,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 14:02:23,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 14:02:23,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 14:02:23,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 14:02:23,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 14:02:23,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:02:23" (1/1) ... [2022-11-21 14:02:23,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d086b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23, skipping insertion in model container [2022-11-21 14:02:23,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:02:23" (1/1) ... [2022-11-21 14:02:23,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 14:02:23,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 14:02:23,533 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/sv-benchmarks/c/weaver/unroll-3.wvr.c[2500,2513] [2022-11-21 14:02:23,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:02:23,558 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 14:02:23,586 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/sv-benchmarks/c/weaver/unroll-3.wvr.c[2500,2513] [2022-11-21 14:02:23,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:02:23,604 INFO L208 MainTranslator]: Completed translation [2022-11-21 14:02:23,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23 WrapperNode [2022-11-21 14:02:23,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 14:02:23,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 14:02:23,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 14:02:23,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 14:02:23,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23" (1/1) ... [2022-11-21 14:02:23,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23" (1/1) ... [2022-11-21 14:02:23,670 INFO L138 Inliner]: procedures = 24, calls = 34, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 279 [2022-11-21 14:02:23,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 14:02:23,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 14:02:23,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 14:02:23,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 14:02:23,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23" (1/1) ... [2022-11-21 14:02:23,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23" (1/1) ... [2022-11-21 14:02:23,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23" (1/1) ... [2022-11-21 14:02:23,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23" (1/1) ... [2022-11-21 14:02:23,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23" (1/1) ... [2022-11-21 14:02:23,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23" (1/1) ... [2022-11-21 14:02:23,762 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23" (1/1) ... [2022-11-21 14:02:23,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23" (1/1) ... [2022-11-21 14:02:23,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 14:02:23,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 14:02:23,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 14:02:23,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 14:02:23,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23" (1/1) ... [2022-11-21 14:02:23,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:02:23,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:02:23,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 14:02:23,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 14:02:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 14:02:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 14:02:23,879 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 14:02:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 14:02:23,880 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 14:02:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 14:02:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 14:02:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 14:02:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 14:02:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 14:02:23,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 14:02:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 14:02:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 14:02:23,884 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 14:02:24,038 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 14:02:24,040 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 14:02:24,831 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 14:02:24,842 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 14:02:24,843 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 14:02:24,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:02:24 BoogieIcfgContainer [2022-11-21 14:02:24,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 14:02:24,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 14:02:24,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 14:02:24,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 14:02:24,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:02:23" (1/3) ... [2022-11-21 14:02:24,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a473ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:02:24, skipping insertion in model container [2022-11-21 14:02:24,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:02:23" (2/3) ... [2022-11-21 14:02:24,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a473ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:02:24, skipping insertion in model container [2022-11-21 14:02:24,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:02:24" (3/3) ... [2022-11-21 14:02:24,856 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-3.wvr.c [2022-11-21 14:02:24,865 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 14:02:24,893 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 14:02:24,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2022-11-21 14:02:24,898 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 14:02:25,052 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 14:02:25,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 364 transitions, 744 flow [2022-11-21 14:02:25,343 INFO L130 PetriNetUnfolder]: 19/362 cut-off events. [2022-11-21 14:02:25,344 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 14:02:25,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 362 events. 19/362 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 525 event pairs, 0 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 217. Up to 2 conditions per place. [2022-11-21 14:02:25,355 INFO L82 GeneralOperation]: Start removeDead. Operand has 352 places, 364 transitions, 744 flow [2022-11-21 14:02:25,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 333 places, 344 transitions, 700 flow [2022-11-21 14:02:25,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 14:02:25,399 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;@527aa439, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 14:02:25,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2022-11-21 14:02:25,406 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-11-21 14:02:25,407 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 14:02:25,407 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:25,408 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] [2022-11-21 14:02:25,410 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:25,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:25,418 INFO L85 PathProgramCache]: Analyzing trace with hash -528860979, now seen corresponding path program 1 times [2022-11-21 14:02:25,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:25,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362976891] [2022-11-21 14:02:25,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:25,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:25,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:25,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:25,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362976891] [2022-11-21 14:02:25,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362976891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:25,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:25,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:02:25,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074151388] [2022-11-21 14:02:25,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:25,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:02:25,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:25,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:02:25,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:02:25,723 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 364 [2022-11-21 14:02:25,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 344 transitions, 700 flow. Second operand has 3 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:25,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:25,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 364 [2022-11-21 14:02:25,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:26,041 INFO L130 PetriNetUnfolder]: 44/1018 cut-off events. [2022-11-21 14:02:26,041 INFO L131 PetriNetUnfolder]: For 22/52 co-relation queries the response was YES. [2022-11-21 14:02:26,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1093 conditions, 1018 events. 44/1018 cut-off events. For 22/52 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4820 event pairs, 15 based on Foata normal form. 23/838 useless extension candidates. Maximal degree in co-relation 885. Up to 55 conditions per place. [2022-11-21 14:02:26,055 INFO L137 encePairwiseOnDemand]: 350/364 looper letters, 16 selfloop transitions, 2 changer transitions 4/332 dead transitions. [2022-11-21 14:02:26,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 332 transitions, 712 flow [2022-11-21 14:02:26,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:02:26,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:02:26,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1026 transitions. [2022-11-21 14:02:26,078 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9395604395604396 [2022-11-21 14:02:26,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1026 transitions. [2022-11-21 14:02:26,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1026 transitions. [2022-11-21 14:02:26,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:26,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1026 transitions. [2022-11-21 14:02:26,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,104 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,106 INFO L175 Difference]: Start difference. First operand has 333 places, 344 transitions, 700 flow. Second operand 3 states and 1026 transitions. [2022-11-21 14:02:26,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 332 transitions, 712 flow [2022-11-21 14:02:26,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 332 transitions, 704 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 14:02:26,128 INFO L231 Difference]: Finished difference. Result has 330 places, 328 transitions, 664 flow [2022-11-21 14:02:26,130 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=664, PETRI_PLACES=330, PETRI_TRANSITIONS=328} [2022-11-21 14:02:26,136 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -3 predicate places. [2022-11-21 14:02:26,136 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 328 transitions, 664 flow [2022-11-21 14:02:26,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,138 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:26,138 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] [2022-11-21 14:02:26,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 14:02:26,139 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:26,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:26,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2011668594, now seen corresponding path program 1 times [2022-11-21 14:02:26,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:26,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810640736] [2022-11-21 14:02:26,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:26,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:26,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:26,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:26,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810640736] [2022-11-21 14:02:26,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810640736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:26,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:26,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:02:26,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829137883] [2022-11-21 14:02:26,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:26,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:02:26,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:26,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:02:26,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:02:26,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 364 [2022-11-21 14:02:26,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 328 transitions, 664 flow. Second operand has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:26,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 364 [2022-11-21 14:02:26,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:26,572 INFO L130 PetriNetUnfolder]: 93/1181 cut-off events. [2022-11-21 14:02:26,572 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-21 14:02:26,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1326 conditions, 1181 events. 93/1181 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5683 event pairs, 39 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 1295. Up to 134 conditions per place. [2022-11-21 14:02:26,587 INFO L137 encePairwiseOnDemand]: 361/364 looper letters, 25 selfloop transitions, 2 changer transitions 0/327 dead transitions. [2022-11-21 14:02:26,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 327 transitions, 716 flow [2022-11-21 14:02:26,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:02:26,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:02:26,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 997 transitions. [2022-11-21 14:02:26,591 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.913003663003663 [2022-11-21 14:02:26,592 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 997 transitions. [2022-11-21 14:02:26,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 997 transitions. [2022-11-21 14:02:26,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:26,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 997 transitions. [2022-11-21 14:02:26,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,598 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,598 INFO L175 Difference]: Start difference. First operand has 330 places, 328 transitions, 664 flow. Second operand 3 states and 997 transitions. [2022-11-21 14:02:26,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 327 transitions, 716 flow [2022-11-21 14:02:26,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 327 transitions, 712 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 14:02:26,608 INFO L231 Difference]: Finished difference. Result has 325 places, 327 transitions, 662 flow [2022-11-21 14:02:26,609 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=325, PETRI_TRANSITIONS=327} [2022-11-21 14:02:26,610 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -8 predicate places. [2022-11-21 14:02:26,610 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 327 transitions, 662 flow [2022-11-21 14:02:26,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:26,611 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] [2022-11-21 14:02:26,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 14:02:26,612 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:26,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:26,612 INFO L85 PathProgramCache]: Analyzing trace with hash 626193, now seen corresponding path program 1 times [2022-11-21 14:02:26,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:26,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260100595] [2022-11-21 14:02:26,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:26,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:26,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:26,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:26,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260100595] [2022-11-21 14:02:26,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260100595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:26,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:26,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:02:26,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422434806] [2022-11-21 14:02:26,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:26,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:02:26,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:26,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:02:26,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:02:26,698 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 364 [2022-11-21 14:02:26,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 327 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:26,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 364 [2022-11-21 14:02:26,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:26,942 INFO L130 PetriNetUnfolder]: 62/998 cut-off events. [2022-11-21 14:02:26,943 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-21 14:02:26,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1086 conditions, 998 events. 62/998 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 4402 event pairs, 20 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 1047. Up to 77 conditions per place. [2022-11-21 14:02:26,956 INFO L137 encePairwiseOnDemand]: 357/364 looper letters, 17 selfloop transitions, 1 changer transitions 0/321 dead transitions. [2022-11-21 14:02:26,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 321 transitions, 686 flow [2022-11-21 14:02:26,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:02:26,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:02:26,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1002 transitions. [2022-11-21 14:02:26,959 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9175824175824175 [2022-11-21 14:02:26,959 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1002 transitions. [2022-11-21 14:02:26,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1002 transitions. [2022-11-21 14:02:26,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:26,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1002 transitions. [2022-11-21 14:02:26,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 334.0) internal successors, (1002), 3 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,967 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,967 INFO L175 Difference]: Start difference. First operand has 325 places, 327 transitions, 662 flow. Second operand 3 states and 1002 transitions. [2022-11-21 14:02:26,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 321 transitions, 686 flow [2022-11-21 14:02:26,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 321 transitions, 682 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 14:02:26,973 INFO L231 Difference]: Finished difference. Result has 319 places, 321 transitions, 648 flow [2022-11-21 14:02:26,974 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=648, PETRI_PLACES=319, PETRI_TRANSITIONS=321} [2022-11-21 14:02:26,975 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -14 predicate places. [2022-11-21 14:02:26,975 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 321 transitions, 648 flow [2022-11-21 14:02:26,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:26,976 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:26,977 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] [2022-11-21 14:02:26,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 14:02:26,977 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:26,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:26,978 INFO L85 PathProgramCache]: Analyzing trace with hash 3298632, now seen corresponding path program 1 times [2022-11-21 14:02:26,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:26,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190921230] [2022-11-21 14:02:26,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:26,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:27,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:27,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:27,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190921230] [2022-11-21 14:02:27,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190921230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:27,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:27,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:02:27,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228550245] [2022-11-21 14:02:27,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:27,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:02:27,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:27,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:02:27,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:02:27,055 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 364 [2022-11-21 14:02:27,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 321 transitions, 648 flow. Second operand has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 3 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:27,056 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:27,057 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 364 [2022-11-21 14:02:27,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:27,314 INFO L130 PetriNetUnfolder]: 85/1042 cut-off events. [2022-11-21 14:02:27,315 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-21 14:02:27,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1174 conditions, 1042 events. 85/1042 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4771 event pairs, 39 based on Foata normal form. 0/857 useless extension candidates. Maximal degree in co-relation 1136. Up to 122 conditions per place. [2022-11-21 14:02:27,326 INFO L137 encePairwiseOnDemand]: 361/364 looper letters, 19 selfloop transitions, 2 changer transitions 0/320 dead transitions. [2022-11-21 14:02:27,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 320 transitions, 688 flow [2022-11-21 14:02:27,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:02:27,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:02:27,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1009 transitions. [2022-11-21 14:02:27,329 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.923992673992674 [2022-11-21 14:02:27,329 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1009 transitions. [2022-11-21 14:02:27,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1009 transitions. [2022-11-21 14:02:27,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:27,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1009 transitions. [2022-11-21 14:02:27,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:27,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:27,338 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:27,338 INFO L175 Difference]: Start difference. First operand has 319 places, 321 transitions, 648 flow. Second operand 3 states and 1009 transitions. [2022-11-21 14:02:27,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 320 transitions, 688 flow [2022-11-21 14:02:27,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 320 transitions, 687 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 14:02:27,346 INFO L231 Difference]: Finished difference. Result has 319 places, 320 transitions, 649 flow [2022-11-21 14:02:27,347 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=649, PETRI_PLACES=319, PETRI_TRANSITIONS=320} [2022-11-21 14:02:27,348 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -14 predicate places. [2022-11-21 14:02:27,348 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 320 transitions, 649 flow [2022-11-21 14:02:27,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 3 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:27,350 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:27,350 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] [2022-11-21 14:02:27,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 14:02:27,351 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:27,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:27,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1130772400, now seen corresponding path program 1 times [2022-11-21 14:02:27,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:27,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287011861] [2022-11-21 14:02:27,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:27,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:28,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:28,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:28,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287011861] [2022-11-21 14:02:28,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287011861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:28,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:28,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 14:02:28,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395094546] [2022-11-21 14:02:28,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:28,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 14:02:28,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:28,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 14:02:28,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 14:02:28,014 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 364 [2022-11-21 14:02:28,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 320 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 295.8333333333333) internal successors, (1775), 6 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:28,017 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:28,017 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 364 [2022-11-21 14:02:28,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:30,447 INFO L130 PetriNetUnfolder]: 2074/10350 cut-off events. [2022-11-21 14:02:30,448 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-21 14:02:30,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13339 conditions, 10350 events. 2074/10350 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 103086 event pairs, 1680 based on Foata normal form. 0/8369 useless extension candidates. Maximal degree in co-relation 13302. Up to 2971 conditions per place. [2022-11-21 14:02:30,545 INFO L137 encePairwiseOnDemand]: 358/364 looper letters, 51 selfloop transitions, 5 changer transitions 0/319 dead transitions. [2022-11-21 14:02:30,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 319 transitions, 759 flow [2022-11-21 14:02:30,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 14:02:30,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 14:02:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1821 transitions. [2022-11-21 14:02:30,550 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8337912087912088 [2022-11-21 14:02:30,550 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1821 transitions. [2022-11-21 14:02:30,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1821 transitions. [2022-11-21 14:02:30,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:30,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1821 transitions. [2022-11-21 14:02:30,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 303.5) internal successors, (1821), 6 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 364.0) internal successors, (2548), 7 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,562 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 364.0) internal successors, (2548), 7 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,562 INFO L175 Difference]: Start difference. First operand has 319 places, 320 transitions, 649 flow. Second operand 6 states and 1821 transitions. [2022-11-21 14:02:30,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 319 transitions, 759 flow [2022-11-21 14:02:30,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 319 transitions, 755 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 14:02:30,569 INFO L231 Difference]: Finished difference. Result has 321 places, 319 transitions, 653 flow [2022-11-21 14:02:30,569 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=653, PETRI_PLACES=321, PETRI_TRANSITIONS=319} [2022-11-21 14:02:30,570 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -12 predicate places. [2022-11-21 14:02:30,570 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 319 transitions, 653 flow [2022-11-21 14:02:30,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 295.8333333333333) internal successors, (1775), 6 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,572 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:30,572 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] [2022-11-21 14:02:30,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 14:02:30,572 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:30,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:30,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1241450745, now seen corresponding path program 1 times [2022-11-21 14:02:30,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:30,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524204178] [2022-11-21 14:02:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:30,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:30,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:30,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:30,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524204178] [2022-11-21 14:02:30,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524204178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:30,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:30,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:02:30,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530988009] [2022-11-21 14:02:30,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:30,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:02:30,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:30,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:02:30,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:02:30,620 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 364 [2022-11-21 14:02:30,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 319 transitions, 653 flow. Second operand has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:30,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 364 [2022-11-21 14:02:30,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:30,756 INFO L130 PetriNetUnfolder]: 32/839 cut-off events. [2022-11-21 14:02:30,757 INFO L131 PetriNetUnfolder]: For 4/20 co-relation queries the response was YES. [2022-11-21 14:02:30,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 839 events. 32/839 cut-off events. For 4/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3508 event pairs, 8 based on Foata normal form. 0/702 useless extension candidates. Maximal degree in co-relation 868. Up to 32 conditions per place. [2022-11-21 14:02:30,765 INFO L137 encePairwiseOnDemand]: 360/364 looper letters, 11 selfloop transitions, 1 changer transitions 0/316 dead transitions. [2022-11-21 14:02:30,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 316 transitions, 671 flow [2022-11-21 14:02:30,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:02:30,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:02:30,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1020 transitions. [2022-11-21 14:02:30,796 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9340659340659341 [2022-11-21 14:02:30,796 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1020 transitions. [2022-11-21 14:02:30,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1020 transitions. [2022-11-21 14:02:30,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:30,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1020 transitions. [2022-11-21 14:02:30,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,803 INFO L175 Difference]: Start difference. First operand has 321 places, 319 transitions, 653 flow. Second operand 3 states and 1020 transitions. [2022-11-21 14:02:30,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 316 transitions, 671 flow [2022-11-21 14:02:30,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 316 transitions, 661 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 14:02:30,809 INFO L231 Difference]: Finished difference. Result has 315 places, 316 transitions, 639 flow [2022-11-21 14:02:30,809 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=639, PETRI_PLACES=315, PETRI_TRANSITIONS=316} [2022-11-21 14:02:30,810 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -18 predicate places. [2022-11-21 14:02:30,810 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 316 transitions, 639 flow [2022-11-21 14:02:30,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,811 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:30,811 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:30,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 14:02:30,811 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:30,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:30,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1408552282, now seen corresponding path program 1 times [2022-11-21 14:02:30,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:30,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465073344] [2022-11-21 14:02:30,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:30,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:30,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:30,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:30,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465073344] [2022-11-21 14:02:30,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465073344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:30,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:30,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:02:30,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745979713] [2022-11-21 14:02:30,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:30,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:02:30,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:30,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:02:30,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:02:30,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 364 [2022-11-21 14:02:30,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 316 transitions, 639 flow. Second operand has 3 states, 3 states have (on average 333.0) internal successors, (999), 3 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:30,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 364 [2022-11-21 14:02:30,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:30,958 INFO L130 PetriNetUnfolder]: 19/369 cut-off events. [2022-11-21 14:02:30,958 INFO L131 PetriNetUnfolder]: For 3/5 co-relation queries the response was YES. [2022-11-21 14:02:30,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 369 events. 19/369 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 775 event pairs, 3 based on Foata normal form. 1/330 useless extension candidates. Maximal degree in co-relation 383. Up to 21 conditions per place. [2022-11-21 14:02:30,963 INFO L137 encePairwiseOnDemand]: 357/364 looper letters, 13 selfloop transitions, 3 changer transitions 0/313 dead transitions. [2022-11-21 14:02:30,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 313 transitions, 666 flow [2022-11-21 14:02:30,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:02:30,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:02:30,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1016 transitions. [2022-11-21 14:02:30,966 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9304029304029304 [2022-11-21 14:02:30,967 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1016 transitions. [2022-11-21 14:02:30,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1016 transitions. [2022-11-21 14:02:30,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:30,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1016 transitions. [2022-11-21 14:02:30,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,973 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,973 INFO L175 Difference]: Start difference. First operand has 315 places, 316 transitions, 639 flow. Second operand 3 states and 1016 transitions. [2022-11-21 14:02:30,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 313 transitions, 666 flow [2022-11-21 14:02:30,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 313 transitions, 665 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 14:02:30,979 INFO L231 Difference]: Finished difference. Result has 312 places, 312 transitions, 636 flow [2022-11-21 14:02:30,980 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=636, PETRI_PLACES=312, PETRI_TRANSITIONS=312} [2022-11-21 14:02:30,981 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -21 predicate places. [2022-11-21 14:02:30,981 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 312 transitions, 636 flow [2022-11-21 14:02:30,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.0) internal successors, (999), 3 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:30,982 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:30,982 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:30,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 14:02:30,982 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:30,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:30,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1067139584, now seen corresponding path program 1 times [2022-11-21 14:02:30,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:30,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588675505] [2022-11-21 14:02:30,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:30,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:31,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:31,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:31,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588675505] [2022-11-21 14:02:31,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588675505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:31,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:31,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:02:31,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620557041] [2022-11-21 14:02:31,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:31,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:02:31,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:31,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:02:31,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:02:31,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 364 [2022-11-21 14:02:31,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 312 transitions, 636 flow. Second operand has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:31,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:31,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 364 [2022-11-21 14:02:31,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:31,165 INFO L130 PetriNetUnfolder]: 39/457 cut-off events. [2022-11-21 14:02:31,165 INFO L131 PetriNetUnfolder]: For 30/32 co-relation queries the response was YES. [2022-11-21 14:02:31,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 457 events. 39/457 cut-off events. For 30/32 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1552 event pairs, 9 based on Foata normal form. 2/417 useless extension candidates. Maximal degree in co-relation 518. Up to 56 conditions per place. [2022-11-21 14:02:31,169 INFO L137 encePairwiseOnDemand]: 347/364 looper letters, 25 selfloop transitions, 6 changer transitions 5/303 dead transitions. [2022-11-21 14:02:31,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 303 transitions, 685 flow [2022-11-21 14:02:31,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:02:31,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:02:31,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 967 transitions. [2022-11-21 14:02:31,202 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8855311355311355 [2022-11-21 14:02:31,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 967 transitions. [2022-11-21 14:02:31,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 967 transitions. [2022-11-21 14:02:31,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:31,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 967 transitions. [2022-11-21 14:02:31,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:31,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:31,209 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:31,209 INFO L175 Difference]: Start difference. First operand has 312 places, 312 transitions, 636 flow. Second operand 3 states and 967 transitions. [2022-11-21 14:02:31,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 303 transitions, 685 flow [2022-11-21 14:02:31,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 303 transitions, 679 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 14:02:31,216 INFO L231 Difference]: Finished difference. Result has 302 places, 297 transitions, 611 flow [2022-11-21 14:02:31,217 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=611, PETRI_PLACES=302, PETRI_TRANSITIONS=297} [2022-11-21 14:02:31,218 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -31 predicate places. [2022-11-21 14:02:31,218 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 297 transitions, 611 flow [2022-11-21 14:02:31,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:31,219 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:31,219 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:31,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 14:02:31,220 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:31,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:31,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2001250898, now seen corresponding path program 1 times [2022-11-21 14:02:31,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:31,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332907962] [2022-11-21 14:02:31,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:31,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:31,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:31,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:31,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332907962] [2022-11-21 14:02:31,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332907962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:31,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:31,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 14:02:31,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226207547] [2022-11-21 14:02:31,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:31,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 14:02:31,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:31,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 14:02:31,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 14:02:31,712 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 364 [2022-11-21 14:02:31,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 297 transitions, 611 flow. Second operand has 6 states, 6 states have (on average 300.8333333333333) internal successors, (1805), 6 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:31,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:31,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 364 [2022-11-21 14:02:31,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:33,589 INFO L130 PetriNetUnfolder]: 2010/7451 cut-off events. [2022-11-21 14:02:33,589 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-21 14:02:33,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10639 conditions, 7451 events. 2010/7451 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 64264 event pairs, 828 based on Foata normal form. 0/6529 useless extension candidates. Maximal degree in co-relation 10600. Up to 1083 conditions per place. [2022-11-21 14:02:33,646 INFO L137 encePairwiseOnDemand]: 359/364 looper letters, 139 selfloop transitions, 4 changer transitions 0/392 dead transitions. [2022-11-21 14:02:33,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 392 transitions, 1087 flow [2022-11-21 14:02:33,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 14:02:33,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 14:02:33,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1938 transitions. [2022-11-21 14:02:33,650 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8873626373626373 [2022-11-21 14:02:33,651 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1938 transitions. [2022-11-21 14:02:33,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1938 transitions. [2022-11-21 14:02:33,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:33,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1938 transitions. [2022-11-21 14:02:33,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:33,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 364.0) internal successors, (2548), 7 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:33,661 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 364.0) internal successors, (2548), 7 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:33,661 INFO L175 Difference]: Start difference. First operand has 302 places, 297 transitions, 611 flow. Second operand 6 states and 1938 transitions. [2022-11-21 14:02:33,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 392 transitions, 1087 flow [2022-11-21 14:02:33,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 392 transitions, 1075 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 14:02:33,670 INFO L231 Difference]: Finished difference. Result has 299 places, 296 transitions, 605 flow [2022-11-21 14:02:33,671 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=605, PETRI_PLACES=299, PETRI_TRANSITIONS=296} [2022-11-21 14:02:33,672 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -34 predicate places. [2022-11-21 14:02:33,672 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 296 transitions, 605 flow [2022-11-21 14:02:33,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 300.8333333333333) internal successors, (1805), 6 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:33,673 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:33,673 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:33,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 14:02:33,673 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:33,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:33,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1478914260, now seen corresponding path program 1 times [2022-11-21 14:02:33,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:33,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944670130] [2022-11-21 14:02:33,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:33,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:33,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:33,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:33,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944670130] [2022-11-21 14:02:33,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944670130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:33,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:33,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:02:33,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712823159] [2022-11-21 14:02:33,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:33,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:02:33,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:33,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:02:33,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:02:33,721 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 364 [2022-11-21 14:02:33,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 296 transitions, 605 flow. Second operand has 3 states, 3 states have (on average 333.6666666666667) internal successors, (1001), 3 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:33,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:33,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 364 [2022-11-21 14:02:33,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:33,865 INFO L130 PetriNetUnfolder]: 57/845 cut-off events. [2022-11-21 14:02:33,865 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-21 14:02:33,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 845 events. 57/845 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3411 event pairs, 6 based on Foata normal form. 0/764 useless extension candidates. Maximal degree in co-relation 894. Up to 68 conditions per place. [2022-11-21 14:02:33,873 INFO L137 encePairwiseOnDemand]: 358/364 looper letters, 15 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2022-11-21 14:02:33,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 296 transitions, 641 flow [2022-11-21 14:02:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:02:33,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:02:33,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-11-21 14:02:33,876 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9313186813186813 [2022-11-21 14:02:33,876 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-11-21 14:02:33,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-11-21 14:02:33,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:33,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-11-21 14:02:33,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:33,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:33,883 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:33,883 INFO L175 Difference]: Start difference. First operand has 299 places, 296 transitions, 605 flow. Second operand 3 states and 1017 transitions. [2022-11-21 14:02:33,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 296 transitions, 641 flow [2022-11-21 14:02:33,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 296 transitions, 634 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 14:02:33,890 INFO L231 Difference]: Finished difference. Result has 294 places, 294 transitions, 604 flow [2022-11-21 14:02:33,890 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=294, PETRI_TRANSITIONS=294} [2022-11-21 14:02:33,891 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -39 predicate places. [2022-11-21 14:02:33,891 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 294 transitions, 604 flow [2022-11-21 14:02:33,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.6666666666667) internal successors, (1001), 3 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:33,893 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:33,893 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:33,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 14:02:33,893 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:33,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:33,894 INFO L85 PathProgramCache]: Analyzing trace with hash -968316038, now seen corresponding path program 1 times [2022-11-21 14:02:33,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:33,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674074573] [2022-11-21 14:02:33,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:33,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:33,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:33,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:33,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674074573] [2022-11-21 14:02:33,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674074573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:33,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:33,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 14:02:33,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740414532] [2022-11-21 14:02:33,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:34,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 14:02:34,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:34,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 14:02:34,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 14:02:34,002 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 364 [2022-11-21 14:02:34,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 294 transitions, 604 flow. Second operand has 4 states, 4 states have (on average 334.0) internal successors, (1336), 4 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:34,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:34,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 364 [2022-11-21 14:02:34,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:34,343 INFO L130 PetriNetUnfolder]: 64/1301 cut-off events. [2022-11-21 14:02:34,343 INFO L131 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-11-21 14:02:34,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1445 conditions, 1301 events. 64/1301 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6286 event pairs, 11 based on Foata normal form. 1/1181 useless extension candidates. Maximal degree in co-relation 1407. Up to 42 conditions per place. [2022-11-21 14:02:34,355 INFO L137 encePairwiseOnDemand]: 358/364 looper letters, 29 selfloop transitions, 6 changer transitions 0/311 dead transitions. [2022-11-21 14:02:34,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 311 transitions, 712 flow [2022-11-21 14:02:34,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 14:02:34,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 14:02:34,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1691 transitions. [2022-11-21 14:02:34,359 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9291208791208792 [2022-11-21 14:02:34,359 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1691 transitions. [2022-11-21 14:02:34,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1691 transitions. [2022-11-21 14:02:34,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:34,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1691 transitions. [2022-11-21 14:02:34,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 338.2) internal successors, (1691), 5 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:34,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 364.0) internal successors, (2184), 6 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:34,369 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 364.0) internal successors, (2184), 6 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:34,369 INFO L175 Difference]: Start difference. First operand has 294 places, 294 transitions, 604 flow. Second operand 5 states and 1691 transitions. [2022-11-21 14:02:34,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 311 transitions, 712 flow [2022-11-21 14:02:34,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 311 transitions, 712 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 14:02:34,375 INFO L231 Difference]: Finished difference. Result has 301 places, 298 transitions, 642 flow [2022-11-21 14:02:34,376 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=642, PETRI_PLACES=301, PETRI_TRANSITIONS=298} [2022-11-21 14:02:34,376 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -32 predicate places. [2022-11-21 14:02:34,377 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 298 transitions, 642 flow [2022-11-21 14:02:34,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 334.0) internal successors, (1336), 4 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:34,377 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:34,378 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:34,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 14:02:34,378 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:34,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:34,379 INFO L85 PathProgramCache]: Analyzing trace with hash -436181612, now seen corresponding path program 1 times [2022-11-21 14:02:34,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:34,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872453779] [2022-11-21 14:02:34,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:34,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:34,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:34,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:34,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872453779] [2022-11-21 14:02:34,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872453779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:34,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:34,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 14:02:34,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927690191] [2022-11-21 14:02:34,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:34,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 14:02:34,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:34,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 14:02:34,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 14:02:34,832 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 364 [2022-11-21 14:02:34,835 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 298 transitions, 642 flow. Second operand has 6 states, 6 states have (on average 301.8333333333333) internal successors, (1811), 6 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:34,836 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:34,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 364 [2022-11-21 14:02:34,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:38,385 INFO L130 PetriNetUnfolder]: 3352/15878 cut-off events. [2022-11-21 14:02:38,386 INFO L131 PetriNetUnfolder]: For 91/91 co-relation queries the response was YES. [2022-11-21 14:02:38,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21417 conditions, 15878 events. 3352/15878 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 165530 event pairs, 2748 based on Foata normal form. 0/14213 useless extension candidates. Maximal degree in co-relation 21373. Up to 4503 conditions per place. [2022-11-21 14:02:38,509 INFO L137 encePairwiseOnDemand]: 359/364 looper letters, 114 selfloop transitions, 4 changer transitions 0/369 dead transitions. [2022-11-21 14:02:38,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 369 transitions, 1020 flow [2022-11-21 14:02:38,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 14:02:38,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 14:02:38,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1913 transitions. [2022-11-21 14:02:38,514 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8759157509157509 [2022-11-21 14:02:38,515 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1913 transitions. [2022-11-21 14:02:38,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1913 transitions. [2022-11-21 14:02:38,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:38,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1913 transitions. [2022-11-21 14:02:38,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 318.8333333333333) internal successors, (1913), 6 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:38,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 364.0) internal successors, (2548), 7 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:38,527 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 364.0) internal successors, (2548), 7 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:38,527 INFO L175 Difference]: Start difference. First operand has 301 places, 298 transitions, 642 flow. Second operand 6 states and 1913 transitions. [2022-11-21 14:02:38,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 369 transitions, 1020 flow [2022-11-21 14:02:38,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 369 transitions, 1020 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 14:02:38,536 INFO L231 Difference]: Finished difference. Result has 305 places, 297 transitions, 648 flow [2022-11-21 14:02:38,537 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=648, PETRI_PLACES=305, PETRI_TRANSITIONS=297} [2022-11-21 14:02:38,539 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -28 predicate places. [2022-11-21 14:02:38,540 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 297 transitions, 648 flow [2022-11-21 14:02:38,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.8333333333333) internal successors, (1811), 6 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:38,541 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:38,542 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:38,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 14:02:38,542 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:38,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:38,543 INFO L85 PathProgramCache]: Analyzing trace with hash -453258510, now seen corresponding path program 1 times [2022-11-21 14:02:38,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:38,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268373054] [2022-11-21 14:02:38,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:38,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:39,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:39,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:39,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268373054] [2022-11-21 14:02:39,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268373054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:39,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:39,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 14:02:39,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961647252] [2022-11-21 14:02:39,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:39,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 14:02:39,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:39,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 14:02:39,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 14:02:39,096 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 364 [2022-11-21 14:02:39,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 297 transitions, 648 flow. Second operand has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:39,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:39,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 364 [2022-11-21 14:02:39,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:42,169 INFO L130 PetriNetUnfolder]: 5099/15175 cut-off events. [2022-11-21 14:02:42,169 INFO L131 PetriNetUnfolder]: For 1670/1670 co-relation queries the response was YES. [2022-11-21 14:02:42,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24803 conditions, 15175 events. 5099/15175 cut-off events. For 1670/1670 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 140066 event pairs, 2110 based on Foata normal form. 0/13818 useless extension candidates. Maximal degree in co-relation 24758. Up to 3881 conditions per place. [2022-11-21 14:02:42,280 INFO L137 encePairwiseOnDemand]: 358/364 looper letters, 156 selfloop transitions, 6 changer transitions 0/404 dead transitions. [2022-11-21 14:02:42,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 404 transitions, 1194 flow [2022-11-21 14:02:42,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 14:02:42,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 14:02:42,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1924 transitions. [2022-11-21 14:02:42,286 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8809523809523809 [2022-11-21 14:02:42,286 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1924 transitions. [2022-11-21 14:02:42,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1924 transitions. [2022-11-21 14:02:42,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:42,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1924 transitions. [2022-11-21 14:02:42,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 320.6666666666667) internal successors, (1924), 6 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:42,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 364.0) internal successors, (2548), 7 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:42,298 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 364.0) internal successors, (2548), 7 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:42,298 INFO L175 Difference]: Start difference. First operand has 305 places, 297 transitions, 648 flow. Second operand 6 states and 1924 transitions. [2022-11-21 14:02:42,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 404 transitions, 1194 flow [2022-11-21 14:02:42,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 404 transitions, 1187 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 14:02:42,308 INFO L231 Difference]: Finished difference. Result has 305 places, 296 transitions, 651 flow [2022-11-21 14:02:42,309 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=651, PETRI_PLACES=305, PETRI_TRANSITIONS=296} [2022-11-21 14:02:42,310 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -28 predicate places. [2022-11-21 14:02:42,310 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 296 transitions, 651 flow [2022-11-21 14:02:42,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 296.0) internal successors, (1776), 6 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:42,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:42,311 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:42,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 14:02:42,312 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:42,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:42,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1948104022, now seen corresponding path program 1 times [2022-11-21 14:02:42,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:42,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601002144] [2022-11-21 14:02:42,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:42,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:42,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:42,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:42,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601002144] [2022-11-21 14:02:42,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601002144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:42,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:42,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 14:02:42,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583723334] [2022-11-21 14:02:42,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:42,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 14:02:42,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:42,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 14:02:42,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 14:02:42,436 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 364 [2022-11-21 14:02:42,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 296 transitions, 651 flow. Second operand has 4 states, 4 states have (on average 314.25) internal successors, (1257), 4 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:42,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:42,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 364 [2022-11-21 14:02:42,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:42,752 INFO L130 PetriNetUnfolder]: 113/1027 cut-off events. [2022-11-21 14:02:42,752 INFO L131 PetriNetUnfolder]: For 96/97 co-relation queries the response was YES. [2022-11-21 14:02:42,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1401 conditions, 1027 events. 113/1027 cut-off events. For 96/97 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6348 event pairs, 22 based on Foata normal form. 0/942 useless extension candidates. Maximal degree in co-relation 1357. Up to 231 conditions per place. [2022-11-21 14:02:42,763 INFO L137 encePairwiseOnDemand]: 358/364 looper letters, 48 selfloop transitions, 6 changer transitions 0/312 dead transitions. [2022-11-21 14:02:42,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 312 transitions, 794 flow [2022-11-21 14:02:42,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 14:02:42,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 14:02:42,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1610 transitions. [2022-11-21 14:02:42,768 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8846153846153846 [2022-11-21 14:02:42,768 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1610 transitions. [2022-11-21 14:02:42,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1610 transitions. [2022-11-21 14:02:42,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:42,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1610 transitions. [2022-11-21 14:02:42,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 322.0) internal successors, (1610), 5 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:42,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 364.0) internal successors, (2184), 6 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:42,779 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 364.0) internal successors, (2184), 6 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:42,779 INFO L175 Difference]: Start difference. First operand has 305 places, 296 transitions, 651 flow. Second operand 5 states and 1610 transitions. [2022-11-21 14:02:42,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 312 transitions, 794 flow [2022-11-21 14:02:42,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 312 transitions, 782 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 14:02:42,787 INFO L231 Difference]: Finished difference. Result has 307 places, 300 transitions, 677 flow [2022-11-21 14:02:42,788 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=677, PETRI_PLACES=307, PETRI_TRANSITIONS=300} [2022-11-21 14:02:42,789 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -26 predicate places. [2022-11-21 14:02:42,789 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 300 transitions, 677 flow [2022-11-21 14:02:42,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 314.25) internal successors, (1257), 4 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:42,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:42,790 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:42,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 14:02:42,791 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:42,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:42,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1917687307, now seen corresponding path program 1 times [2022-11-21 14:02:42,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:42,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227062906] [2022-11-21 14:02:42,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:42,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:42,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:42,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:42,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227062906] [2022-11-21 14:02:42,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227062906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:42,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:42,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:02:42,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175021269] [2022-11-21 14:02:42,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:42,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:02:42,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:42,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:02:42,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:02:42,954 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 364 [2022-11-21 14:02:42,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 300 transitions, 677 flow. Second operand has 3 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:42,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:42,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 364 [2022-11-21 14:02:42,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:43,081 INFO L130 PetriNetUnfolder]: 37/727 cut-off events. [2022-11-21 14:02:43,082 INFO L131 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2022-11-21 14:02:43,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 727 events. 37/727 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2112 event pairs, 16 based on Foata normal form. 0/676 useless extension candidates. Maximal degree in co-relation 840. Up to 47 conditions per place. [2022-11-21 14:02:43,090 INFO L137 encePairwiseOnDemand]: 361/364 looper letters, 12 selfloop transitions, 2 changer transitions 0/300 dead transitions. [2022-11-21 14:02:43,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 300 transitions, 706 flow [2022-11-21 14:02:43,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:02:43,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:02:43,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1005 transitions. [2022-11-21 14:02:43,093 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9203296703296703 [2022-11-21 14:02:43,094 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1005 transitions. [2022-11-21 14:02:43,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1005 transitions. [2022-11-21 14:02:43,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:43,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1005 transitions. [2022-11-21 14:02:43,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:43,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:43,099 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:43,099 INFO L175 Difference]: Start difference. First operand has 307 places, 300 transitions, 677 flow. Second operand 3 states and 1005 transitions. [2022-11-21 14:02:43,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 300 transitions, 706 flow [2022-11-21 14:02:43,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 300 transitions, 706 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 14:02:43,107 INFO L231 Difference]: Finished difference. Result has 308 places, 299 transitions, 679 flow [2022-11-21 14:02:43,108 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=675, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=679, PETRI_PLACES=308, PETRI_TRANSITIONS=299} [2022-11-21 14:02:43,109 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -25 predicate places. [2022-11-21 14:02:43,109 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 299 transitions, 679 flow [2022-11-21 14:02:43,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:43,110 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:43,110 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:43,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 14:02:43,110 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:43,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:43,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1784735052, now seen corresponding path program 1 times [2022-11-21 14:02:43,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:43,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783501214] [2022-11-21 14:02:43,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:43,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:43,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:43,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:43,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783501214] [2022-11-21 14:02:43,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783501214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:43,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:43,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 14:02:43,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769805274] [2022-11-21 14:02:43,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:43,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 14:02:43,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:43,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 14:02:43,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 14:02:43,552 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 364 [2022-11-21 14:02:43,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 299 transitions, 679 flow. Second operand has 6 states, 6 states have (on average 290.1666666666667) internal successors, (1741), 6 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:43,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:43,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 364 [2022-11-21 14:02:43,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:47,029 INFO L130 PetriNetUnfolder]: 5456/18703 cut-off events. [2022-11-21 14:02:47,029 INFO L131 PetriNetUnfolder]: For 1138/1138 co-relation queries the response was YES. [2022-11-21 14:02:47,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29358 conditions, 18703 events. 5456/18703 cut-off events. For 1138/1138 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 183086 event pairs, 1934 based on Foata normal form. 0/17621 useless extension candidates. Maximal degree in co-relation 29308. Up to 3558 conditions per place. [2022-11-21 14:02:47,133 INFO L137 encePairwiseOnDemand]: 346/364 looper letters, 109 selfloop transitions, 16 changer transitions 0/364 dead transitions. [2022-11-21 14:02:47,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 364 transitions, 1071 flow [2022-11-21 14:02:47,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 14:02:47,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 14:02:47,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1853 transitions. [2022-11-21 14:02:47,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8484432234432234 [2022-11-21 14:02:47,138 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1853 transitions. [2022-11-21 14:02:47,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1853 transitions. [2022-11-21 14:02:47,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:47,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1853 transitions. [2022-11-21 14:02:47,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 308.8333333333333) internal successors, (1853), 6 states have internal predecessors, (1853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 364.0) internal successors, (2548), 7 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,149 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 364.0) internal successors, (2548), 7 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,149 INFO L175 Difference]: Start difference. First operand has 308 places, 299 transitions, 679 flow. Second operand 6 states and 1853 transitions. [2022-11-21 14:02:47,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 364 transitions, 1071 flow [2022-11-21 14:02:47,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 364 transitions, 1067 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 14:02:47,160 INFO L231 Difference]: Finished difference. Result has 308 places, 296 transitions, 701 flow [2022-11-21 14:02:47,161 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=701, PETRI_PLACES=308, PETRI_TRANSITIONS=296} [2022-11-21 14:02:47,161 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -25 predicate places. [2022-11-21 14:02:47,161 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 296 transitions, 701 flow [2022-11-21 14:02:47,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 290.1666666666667) internal successors, (1741), 6 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,162 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:47,163 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:47,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 14:02:47,163 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:47,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:47,164 INFO L85 PathProgramCache]: Analyzing trace with hash -615768881, now seen corresponding path program 1 times [2022-11-21 14:02:47,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:47,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456689397] [2022-11-21 14:02:47,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:47,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:47,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:47,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:47,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456689397] [2022-11-21 14:02:47,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456689397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:47,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:47,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:02:47,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593273882] [2022-11-21 14:02:47,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:47,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:02:47,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:47,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:02:47,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:02:47,215 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 364 [2022-11-21 14:02:47,216 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 296 transitions, 701 flow. Second operand has 3 states, 3 states have (on average 309.6666666666667) internal successors, (929), 3 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:47,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 364 [2022-11-21 14:02:47,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:47,435 INFO L130 PetriNetUnfolder]: 95/987 cut-off events. [2022-11-21 14:02:47,435 INFO L131 PetriNetUnfolder]: For 107/108 co-relation queries the response was YES. [2022-11-21 14:02:47,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1429 conditions, 987 events. 95/987 cut-off events. For 107/108 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5722 event pairs, 66 based on Foata normal form. 0/931 useless extension candidates. Maximal degree in co-relation 1381. Up to 221 conditions per place. [2022-11-21 14:02:47,444 INFO L137 encePairwiseOnDemand]: 361/364 looper letters, 30 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2022-11-21 14:02:47,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 296 transitions, 766 flow [2022-11-21 14:02:47,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:02:47,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:02:47,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 951 transitions. [2022-11-21 14:02:47,448 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8708791208791209 [2022-11-21 14:02:47,448 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 951 transitions. [2022-11-21 14:02:47,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 951 transitions. [2022-11-21 14:02:47,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:47,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 951 transitions. [2022-11-21 14:02:47,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,454 INFO L175 Difference]: Start difference. First operand has 308 places, 296 transitions, 701 flow. Second operand 3 states and 951 transitions. [2022-11-21 14:02:47,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 296 transitions, 766 flow [2022-11-21 14:02:47,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 296 transitions, 734 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 14:02:47,461 INFO L231 Difference]: Finished difference. Result has 304 places, 295 transitions, 671 flow [2022-11-21 14:02:47,461 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=671, PETRI_PLACES=304, PETRI_TRANSITIONS=295} [2022-11-21 14:02:47,462 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -29 predicate places. [2022-11-21 14:02:47,462 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 295 transitions, 671 flow [2022-11-21 14:02:47,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.6666666666667) internal successors, (929), 3 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,462 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:47,463 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:47,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 14:02:47,463 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:47,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:47,464 INFO L85 PathProgramCache]: Analyzing trace with hash 2063734758, now seen corresponding path program 1 times [2022-11-21 14:02:47,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:47,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717964721] [2022-11-21 14:02:47,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:47,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:47,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:47,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:47,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717964721] [2022-11-21 14:02:47,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717964721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:47,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:47,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:02:47,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629037853] [2022-11-21 14:02:47,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:47,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:02:47,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:47,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:02:47,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:02:47,524 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 364 [2022-11-21 14:02:47,525 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 295 transitions, 671 flow. Second operand has 3 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:47,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 364 [2022-11-21 14:02:47,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:47,856 INFO L130 PetriNetUnfolder]: 93/980 cut-off events. [2022-11-21 14:02:47,856 INFO L131 PetriNetUnfolder]: For 95/96 co-relation queries the response was YES. [2022-11-21 14:02:47,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1325 conditions, 980 events. 93/980 cut-off events. For 95/96 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5548 event pairs, 64 based on Foata normal form. 0/929 useless extension candidates. Maximal degree in co-relation 1277. Up to 214 conditions per place. [2022-11-21 14:02:47,864 INFO L137 encePairwiseOnDemand]: 361/364 looper letters, 29 selfloop transitions, 2 changer transitions 0/295 dead transitions. [2022-11-21 14:02:47,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 295 transitions, 734 flow [2022-11-21 14:02:47,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:02:47,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:02:47,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 950 transitions. [2022-11-21 14:02:47,868 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.86996336996337 [2022-11-21 14:02:47,868 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 950 transitions. [2022-11-21 14:02:47,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 950 transitions. [2022-11-21 14:02:47,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:47,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 950 transitions. [2022-11-21 14:02:47,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,874 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,874 INFO L175 Difference]: Start difference. First operand has 304 places, 295 transitions, 671 flow. Second operand 3 states and 950 transitions. [2022-11-21 14:02:47,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 295 transitions, 734 flow [2022-11-21 14:02:47,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 295 transitions, 730 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 14:02:47,880 INFO L231 Difference]: Finished difference. Result has 303 places, 294 transitions, 669 flow [2022-11-21 14:02:47,881 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=669, PETRI_PLACES=303, PETRI_TRANSITIONS=294} [2022-11-21 14:02:47,881 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -30 predicate places. [2022-11-21 14:02:47,882 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 294 transitions, 669 flow [2022-11-21 14:02:47,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,882 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:47,883 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:47,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 14:02:47,883 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2022-11-21 14:02:47,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:47,883 INFO L85 PathProgramCache]: Analyzing trace with hash 748027165, now seen corresponding path program 1 times [2022-11-21 14:02:47,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:47,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747883267] [2022-11-21 14:02:47,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:47,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:47,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:47,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:47,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747883267] [2022-11-21 14:02:47,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747883267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:47,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:47,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 14:02:47,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927311273] [2022-11-21 14:02:47,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:47,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 14:02:47,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:47,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 14:02:47,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 14:02:47,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 364 [2022-11-21 14:02:47,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 294 transitions, 669 flow. Second operand has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:47,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:47,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 364 [2022-11-21 14:02:47,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:48,165 INFO L130 PetriNetUnfolder]: 91/973 cut-off events. [2022-11-21 14:02:48,166 INFO L131 PetriNetUnfolder]: For 93/94 co-relation queries the response was YES. [2022-11-21 14:02:48,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1311 conditions, 973 events. 91/973 cut-off events. For 93/94 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5525 event pairs, 62 based on Foata normal form. 0/927 useless extension candidates. Maximal degree in co-relation 1263. Up to 207 conditions per place. [2022-11-21 14:02:48,173 INFO L137 encePairwiseOnDemand]: 361/364 looper letters, 0 selfloop transitions, 0 changer transitions 294/294 dead transitions. [2022-11-21 14:02:48,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 294 transitions, 730 flow [2022-11-21 14:02:48,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 14:02:48,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 14:02:48,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 949 transitions. [2022-11-21 14:02:48,177 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8690476190476191 [2022-11-21 14:02:48,177 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 949 transitions. [2022-11-21 14:02:48,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 949 transitions. [2022-11-21 14:02:48,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:48,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 949 transitions. [2022-11-21 14:02:48,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 316.3333333333333) internal successors, (949), 3 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:48,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:48,184 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 364.0) internal successors, (1456), 4 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:48,184 INFO L175 Difference]: Start difference. First operand has 303 places, 294 transitions, 669 flow. Second operand 3 states and 949 transitions. [2022-11-21 14:02:48,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 294 transitions, 730 flow [2022-11-21 14:02:48,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 294 transitions, 726 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 14:02:48,189 INFO L231 Difference]: Finished difference. Result has 302 places, 0 transitions, 0 flow [2022-11-21 14:02:48,189 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=302, PETRI_TRANSITIONS=0} [2022-11-21 14:02:48,190 INFO L288 CegarLoopForPetriNet]: 333 programPoint places, -31 predicate places. [2022-11-21 14:02:48,190 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 0 transitions, 0 flow [2022-11-21 14:02:48,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:48,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (72 of 73 remaining) [2022-11-21 14:02:48,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (71 of 73 remaining) [2022-11-21 14:02:48,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (70 of 73 remaining) [2022-11-21 14:02:48,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (69 of 73 remaining) [2022-11-21 14:02:48,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (68 of 73 remaining) [2022-11-21 14:02:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (67 of 73 remaining) [2022-11-21 14:02:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (66 of 73 remaining) [2022-11-21 14:02:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (65 of 73 remaining) [2022-11-21 14:02:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (64 of 73 remaining) [2022-11-21 14:02:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (63 of 73 remaining) [2022-11-21 14:02:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (62 of 73 remaining) [2022-11-21 14:02:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (61 of 73 remaining) [2022-11-21 14:02:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (60 of 73 remaining) [2022-11-21 14:02:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (59 of 73 remaining) [2022-11-21 14:02:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (58 of 73 remaining) [2022-11-21 14:02:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (57 of 73 remaining) [2022-11-21 14:02:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (56 of 73 remaining) [2022-11-21 14:02:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (55 of 73 remaining) [2022-11-21 14:02:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (54 of 73 remaining) [2022-11-21 14:02:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (53 of 73 remaining) [2022-11-21 14:02:48,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (52 of 73 remaining) [2022-11-21 14:02:48,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (51 of 73 remaining) [2022-11-21 14:02:48,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (50 of 73 remaining) [2022-11-21 14:02:48,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (49 of 73 remaining) [2022-11-21 14:02:48,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (48 of 73 remaining) [2022-11-21 14:02:48,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (47 of 73 remaining) [2022-11-21 14:02:48,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (46 of 73 remaining) [2022-11-21 14:02:48,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (45 of 73 remaining) [2022-11-21 14:02:48,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (44 of 73 remaining) [2022-11-21 14:02:48,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (43 of 73 remaining) [2022-11-21 14:02:48,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 73 remaining) [2022-11-21 14:02:48,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 73 remaining) [2022-11-21 14:02:48,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 73 remaining) [2022-11-21 14:02:48,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 73 remaining) [2022-11-21 14:02:48,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 73 remaining) [2022-11-21 14:02:48,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 73 remaining) [2022-11-21 14:02:48,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (36 of 73 remaining) [2022-11-21 14:02:48,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (35 of 73 remaining) [2022-11-21 14:02:48,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 73 remaining) [2022-11-21 14:02:48,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 73 remaining) [2022-11-21 14:02:48,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 73 remaining) [2022-11-21 14:02:48,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 73 remaining) [2022-11-21 14:02:48,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 73 remaining) [2022-11-21 14:02:48,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (29 of 73 remaining) [2022-11-21 14:02:48,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (28 of 73 remaining) [2022-11-21 14:02:48,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (27 of 73 remaining) [2022-11-21 14:02:48,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (26 of 73 remaining) [2022-11-21 14:02:48,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (25 of 73 remaining) [2022-11-21 14:02:48,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (24 of 73 remaining) [2022-11-21 14:02:48,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (23 of 73 remaining) [2022-11-21 14:02:48,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (22 of 73 remaining) [2022-11-21 14:02:48,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (21 of 73 remaining) [2022-11-21 14:02:48,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 73 remaining) [2022-11-21 14:02:48,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (19 of 73 remaining) [2022-11-21 14:02:48,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (18 of 73 remaining) [2022-11-21 14:02:48,205 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (17 of 73 remaining) [2022-11-21 14:02:48,205 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (16 of 73 remaining) [2022-11-21 14:02:48,205 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (15 of 73 remaining) [2022-11-21 14:02:48,205 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (14 of 73 remaining) [2022-11-21 14:02:48,205 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (13 of 73 remaining) [2022-11-21 14:02:48,205 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (12 of 73 remaining) [2022-11-21 14:02:48,206 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (11 of 73 remaining) [2022-11-21 14:02:48,206 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (10 of 73 remaining) [2022-11-21 14:02:48,206 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (9 of 73 remaining) [2022-11-21 14:02:48,206 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (8 of 73 remaining) [2022-11-21 14:02:48,206 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (7 of 73 remaining) [2022-11-21 14:02:48,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (6 of 73 remaining) [2022-11-21 14:02:48,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (5 of 73 remaining) [2022-11-21 14:02:48,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (4 of 73 remaining) [2022-11-21 14:02:48,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (3 of 73 remaining) [2022-11-21 14:02:48,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (2 of 73 remaining) [2022-11-21 14:02:48,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (1 of 73 remaining) [2022-11-21 14:02:48,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (0 of 73 remaining) [2022-11-21 14:02:48,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 14:02:48,208 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:48,215 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 14:02:48,215 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 14:02:48,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 02:02:48 BasicIcfg [2022-11-21 14:02:48,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 14:02:48,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 14:02:48,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 14:02:48,222 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 14:02:48,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:02:24" (3/4) ... [2022-11-21 14:02:48,226 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 14:02:48,232 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-21 14:02:48,232 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-21 14:02:48,238 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-21 14:02:48,239 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 14:02:48,239 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 14:02:48,239 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 14:02:48,300 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 14:02:48,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 14:02:48,301 INFO L158 Benchmark]: Toolchain (without parser) took 25018.15ms. Allocated memory was 127.9MB in the beginning and 6.4GB in the end (delta: 6.3GB). Free memory was 84.4MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 769.1MB. Max. memory is 16.1GB. [2022-11-21 14:02:48,301 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 127.9MB. Free memory was 99.3MB in the beginning and 99.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 14:02:48,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.85ms. Allocated memory is still 127.9MB. Free memory was 83.9MB in the beginning and 71.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 14:02:48,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.62ms. Allocated memory is still 127.9MB. Free memory was 71.8MB in the beginning and 69.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 14:02:48,302 INFO L158 Benchmark]: Boogie Preprocessor took 84.59ms. Allocated memory is still 127.9MB. Free memory was 68.9MB in the beginning and 66.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 14:02:48,303 INFO L158 Benchmark]: RCFGBuilder took 1077.21ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 66.4MB in the beginning and 129.4MB in the end (delta: -63.1MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2022-11-21 14:02:48,303 INFO L158 Benchmark]: TraceAbstraction took 23373.11ms. Allocated memory was 165.7MB in the beginning and 6.4GB in the end (delta: 6.3GB). Free memory was 128.5MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 771.8MB. Max. memory is 16.1GB. [2022-11-21 14:02:48,303 INFO L158 Benchmark]: Witness Printer took 78.22ms. Allocated memory is still 6.4GB. Free memory was 5.6GB in the beginning and 5.6GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 14:02:48,307 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 127.9MB. Free memory was 99.3MB in the beginning and 99.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.85ms. Allocated memory is still 127.9MB. Free memory was 83.9MB in the beginning and 71.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.62ms. Allocated memory is still 127.9MB. Free memory was 71.8MB in the beginning and 69.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.59ms. Allocated memory is still 127.9MB. Free memory was 68.9MB in the beginning and 66.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1077.21ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 66.4MB in the beginning and 129.4MB in the end (delta: -63.1MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * TraceAbstraction took 23373.11ms. Allocated memory was 165.7MB in the beginning and 6.4GB in the end (delta: 6.3GB). Free memory was 128.5MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 771.8MB. Max. memory is 16.1GB. * Witness Printer took 78.22ms. Allocated memory is still 6.4GB. Free memory was 5.6GB in the beginning and 5.6GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 536 locations, 73 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 23.1s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 18.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 218 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 218 mSDsluCounter, 448 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 319 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1661 IncrementalHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 319 mSolverCounterUnsat, 416 mSDtfsCounter, 1661 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=701occurred in iteration=16, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1853 NumberOfCodeBlocks, 1853 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1834 ConstructedInterpolants, 0 QuantifiedInterpolants, 2703 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 41 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 14:02:48,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a355cd97-6117-4f20-a225-723a9eba454e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE