./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:30:52,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:30:52,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:30:52,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:30:52,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:30:52,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:30:52,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:30:52,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:30:52,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:30:52,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:30:52,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:30:52,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:30:52,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:30:52,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:30:52,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:30:52,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:30:52,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:30:52,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:30:52,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:30:52,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:30:52,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:30:52,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:30:52,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:30:52,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:30:52,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:30:52,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:30:52,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:30:52,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:30:52,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:30:52,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:30:52,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:30:52,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:30:52,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:30:52,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:30:52,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:30:52,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:30:52,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:30:52,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:30:52,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:30:52,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:30:52,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:30:52,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:30:52,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:30:52,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:30:52,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:30:52,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:30:52,650 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:30:52,650 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:30:52,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:30:52,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:30:52,651 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:30:52,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:30:52,652 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:30:52,652 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:30:52,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:30:52,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:30:52,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:30:52,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:30:52,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:30:52,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:30:52,653 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:30:52,654 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:30:52,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:30:52,654 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:30:52,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:30:52,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:30:52,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:30:52,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:30:52,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:52,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:30:52,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:30:52,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:30:52,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:30:52,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:30:52,657 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:30:52,657 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:30:52,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:30:52,657 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_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 [2022-11-16 11:30:53,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:30:53,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:30:53,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:30:53,116 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:30:53,117 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:30:53,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2022-11-16 11:30:53,218 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/data/a61d1ead8/72661194eb1a4e448be2f4fcf315dcc8/FLAG6ffe5283d [2022-11-16 11:30:53,891 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:30:53,892 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2022-11-16 11:30:53,907 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/data/a61d1ead8/72661194eb1a4e448be2f4fcf315dcc8/FLAG6ffe5283d [2022-11-16 11:30:54,215 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/data/a61d1ead8/72661194eb1a4e448be2f4fcf315dcc8 [2022-11-16 11:30:54,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:30:54,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:30:54,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:54,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:30:54,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:30:54,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:54" (1/1) ... [2022-11-16 11:30:54,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5292f576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54, skipping insertion in model container [2022-11-16 11:30:54,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:54" (1/1) ... [2022-11-16 11:30:54,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:30:54,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:30:54,593 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/sv-benchmarks/c/weaver/array-eq-trans.wvr.c[2737,2750] [2022-11-16 11:30:54,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:54,611 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:30:54,657 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/sv-benchmarks/c/weaver/array-eq-trans.wvr.c[2737,2750] [2022-11-16 11:30:54,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:54,679 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:30:54,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54 WrapperNode [2022-11-16 11:30:54,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:54,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:54,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:30:54,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:30:54,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54" (1/1) ... [2022-11-16 11:30:54,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54" (1/1) ... [2022-11-16 11:30:54,780 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 348 [2022-11-16 11:30:54,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:54,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:30:54,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:30:54,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:30:54,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54" (1/1) ... [2022-11-16 11:30:54,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54" (1/1) ... [2022-11-16 11:30:54,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54" (1/1) ... [2022-11-16 11:30:54,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54" (1/1) ... [2022-11-16 11:30:54,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54" (1/1) ... [2022-11-16 11:30:54,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54" (1/1) ... [2022-11-16 11:30:54,873 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54" (1/1) ... [2022-11-16 11:30:54,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54" (1/1) ... [2022-11-16 11:30:54,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:30:54,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:30:54,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:30:54,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:30:54,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54" (1/1) ... [2022-11-16 11:30:54,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:54,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:54,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:54,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b4b7a4c-5bf5-45c8-91f6-808c36de81fa/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:30:54,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:30:54,994 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:30:54,994 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:30:54,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:30:54,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:30:54,997 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:30:54,997 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:30:54,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:30:54,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:30:54,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:30:54,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:30:54,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:30:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:30:54,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:30:54,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:30:55,001 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:30:55,237 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:30:55,240 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:30:56,403 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:30:56,435 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:30:56,438 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 11:30:56,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:56 BoogieIcfgContainer [2022-11-16 11:30:56,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:30:56,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:30:56,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:30:56,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:30:56,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:30:54" (1/3) ... [2022-11-16 11:30:56,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@becf055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:56, skipping insertion in model container [2022-11-16 11:30:56,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:54" (2/3) ... [2022-11-16 11:30:56,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@becf055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:56, skipping insertion in model container [2022-11-16 11:30:56,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:56" (3/3) ... [2022-11-16 11:30:56,454 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2022-11-16 11:30:56,465 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:30:56,479 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:30:56,480 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2022-11-16 11:30:56,480 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:30:56,645 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:30:56,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 621 places, 644 transitions, 1312 flow [2022-11-16 11:30:57,139 INFO L130 PetriNetUnfolder]: 33/641 cut-off events. [2022-11-16 11:30:57,140 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:30:57,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 641 events. 33/641 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1327 event pairs, 0 based on Foata normal form. 0/527 useless extension candidates. Maximal degree in co-relation 364. Up to 3 conditions per place. [2022-11-16 11:30:57,151 INFO L82 GeneralOperation]: Start removeDead. Operand has 621 places, 644 transitions, 1312 flow [2022-11-16 11:30:57,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 593 places, 613 transitions, 1244 flow [2022-11-16 11:30:57,177 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:30:57,185 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;@67ce9a7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:30:57,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 120 error locations. [2022-11-16 11:30:57,191 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-16 11:30:57,191 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:30:57,192 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:57,193 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] [2022-11-16 11:30:57,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:30:57,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:57,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1418968212, now seen corresponding path program 1 times [2022-11-16 11:30:57,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:57,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685503441] [2022-11-16 11:30:57,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:57,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:57,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:57,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685503441] [2022-11-16 11:30:57,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685503441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:57,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:57,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:57,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052682721] [2022-11-16 11:30:57,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:57,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:57,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:57,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:57,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:57,606 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 644 [2022-11-16 11:30:57,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 613 transitions, 1244 flow. Second operand has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:57,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:57,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 644 [2022-11-16 11:30:57,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:58,125 INFO L130 PetriNetUnfolder]: 61/1128 cut-off events. [2022-11-16 11:30:58,125 INFO L131 PetriNetUnfolder]: For 36/38 co-relation queries the response was YES. [2022-11-16 11:30:58,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 1128 events. 61/1128 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5120 event pairs, 21 based on Foata normal form. 47/946 useless extension candidates. Maximal degree in co-relation 668. Up to 67 conditions per place. [2022-11-16 11:30:58,149 INFO L137 encePairwiseOnDemand]: 627/644 looper letters, 24 selfloop transitions, 2 changer transitions 8/598 dead transitions. [2022-11-16 11:30:58,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 598 transitions, 1266 flow [2022-11-16 11:30:58,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:58,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:58,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1844 transitions. [2022-11-16 11:30:58,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9544513457556936 [2022-11-16 11:30:58,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1844 transitions. [2022-11-16 11:30:58,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1844 transitions. [2022-11-16 11:30:58,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:58,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1844 transitions. [2022-11-16 11:30:58,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 614.6666666666666) internal successors, (1844), 3 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:58,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:58,224 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:58,226 INFO L175 Difference]: Start difference. First operand has 593 places, 613 transitions, 1244 flow. Second operand 3 states and 1844 transitions. [2022-11-16 11:30:58,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 598 transitions, 1266 flow [2022-11-16 11:30:58,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 598 transitions, 1254 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 11:30:58,263 INFO L231 Difference]: Finished difference. Result has 588 places, 590 transitions, 1190 flow [2022-11-16 11:30:58,266 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1202, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=596, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1190, PETRI_PLACES=588, PETRI_TRANSITIONS=590} [2022-11-16 11:30:58,275 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -5 predicate places. [2022-11-16 11:30:58,275 INFO L495 AbstractCegarLoop]: Abstraction has has 588 places, 590 transitions, 1190 flow [2022-11-16 11:30:58,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:58,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:58,278 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] [2022-11-16 11:30:58,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:30:58,278 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:30:58,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:58,281 INFO L85 PathProgramCache]: Analyzing trace with hash 861718606, now seen corresponding path program 1 times [2022-11-16 11:30:58,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:58,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876167119] [2022-11-16 11:30:58,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:58,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:58,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:58,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:58,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876167119] [2022-11-16 11:30:58,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876167119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:58,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:58,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:58,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357304902] [2022-11-16 11:30:58,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:58,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:58,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:58,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:58,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:58,416 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 644 [2022-11-16 11:30:58,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 590 transitions, 1190 flow. Second operand has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:58,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:58,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 644 [2022-11-16 11:30:58,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:58,867 INFO L130 PetriNetUnfolder]: 90/1380 cut-off events. [2022-11-16 11:30:58,868 INFO L131 PetriNetUnfolder]: For 10/21 co-relation queries the response was YES. [2022-11-16 11:30:58,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1505 conditions, 1380 events. 90/1380 cut-off events. For 10/21 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7915 event pairs, 39 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1468. Up to 98 conditions per place. [2022-11-16 11:30:58,900 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 24 selfloop transitions, 2 changer transitions 0/589 dead transitions. [2022-11-16 11:30:58,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 589 transitions, 1240 flow [2022-11-16 11:30:58,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:58,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:58,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1830 transitions. [2022-11-16 11:30:58,908 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9472049689440993 [2022-11-16 11:30:58,909 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1830 transitions. [2022-11-16 11:30:58,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1830 transitions. [2022-11-16 11:30:58,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:58,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1830 transitions. [2022-11-16 11:30:58,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 610.0) internal successors, (1830), 3 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:58,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:58,924 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:58,924 INFO L175 Difference]: Start difference. First operand has 588 places, 590 transitions, 1190 flow. Second operand 3 states and 1830 transitions. [2022-11-16 11:30:58,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 589 transitions, 1240 flow [2022-11-16 11:30:58,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 589 transitions, 1236 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:58,939 INFO L231 Difference]: Finished difference. Result has 579 places, 589 transitions, 1188 flow [2022-11-16 11:30:58,941 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1184, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=589, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1188, PETRI_PLACES=579, PETRI_TRANSITIONS=589} [2022-11-16 11:30:58,942 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -14 predicate places. [2022-11-16 11:30:58,942 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 589 transitions, 1188 flow [2022-11-16 11:30:58,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:58,945 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:58,945 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] [2022-11-16 11:30:58,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:30:58,945 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:30:58,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:58,947 INFO L85 PathProgramCache]: Analyzing trace with hash 132271975, now seen corresponding path program 1 times [2022-11-16 11:30:58,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:58,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505239569] [2022-11-16 11:30:58,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:58,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:59,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:59,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505239569] [2022-11-16 11:30:59,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505239569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:59,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:59,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:59,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548820754] [2022-11-16 11:30:59,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:59,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:59,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:59,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:59,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:59,060 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 644 [2022-11-16 11:30:59,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 589 transitions, 1188 flow. Second operand has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:59,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:59,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 644 [2022-11-16 11:30:59,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:59,519 INFO L130 PetriNetUnfolder]: 83/1281 cut-off events. [2022-11-16 11:30:59,519 INFO L131 PetriNetUnfolder]: For 26/30 co-relation queries the response was YES. [2022-11-16 11:30:59,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1392 conditions, 1281 events. 83/1281 cut-off events. For 26/30 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6604 event pairs, 39 based on Foata normal form. 0/1042 useless extension candidates. Maximal degree in co-relation 1348. Up to 99 conditions per place. [2022-11-16 11:30:59,563 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 24 selfloop transitions, 2 changer transitions 0/588 dead transitions. [2022-11-16 11:30:59,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 588 transitions, 1238 flow [2022-11-16 11:30:59,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:59,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:30:59,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1830 transitions. [2022-11-16 11:30:59,571 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9472049689440993 [2022-11-16 11:30:59,571 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1830 transitions. [2022-11-16 11:30:59,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1830 transitions. [2022-11-16 11:30:59,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:59,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1830 transitions. [2022-11-16 11:30:59,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 610.0) internal successors, (1830), 3 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:59,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:59,586 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:59,586 INFO L175 Difference]: Start difference. First operand has 579 places, 589 transitions, 1188 flow. Second operand 3 states and 1830 transitions. [2022-11-16 11:30:59,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 588 transitions, 1238 flow [2022-11-16 11:30:59,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 588 transitions, 1234 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:30:59,607 INFO L231 Difference]: Finished difference. Result has 578 places, 588 transitions, 1186 flow [2022-11-16 11:30:59,608 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1182, PETRI_DIFFERENCE_MINUEND_PLACES=576, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1186, PETRI_PLACES=578, PETRI_TRANSITIONS=588} [2022-11-16 11:30:59,611 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -15 predicate places. [2022-11-16 11:30:59,612 INFO L495 AbstractCegarLoop]: Abstraction has has 578 places, 588 transitions, 1186 flow [2022-11-16 11:30:59,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:59,614 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:59,614 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] [2022-11-16 11:30:59,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:30:59,615 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:30:59,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:59,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1473296039, now seen corresponding path program 1 times [2022-11-16 11:30:59,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:59,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535243514] [2022-11-16 11:30:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:59,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:59,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:59,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:59,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535243514] [2022-11-16 11:30:59,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535243514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:59,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:59,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:59,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774580117] [2022-11-16 11:30:59,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:59,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:59,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:59,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:59,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:59,746 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-16 11:30:59,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 588 transitions, 1186 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:59,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:59,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-16 11:30:59,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:00,054 INFO L130 PetriNetUnfolder]: 49/1036 cut-off events. [2022-11-16 11:31:00,054 INFO L131 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2022-11-16 11:31:00,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1090 conditions, 1036 events. 49/1036 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4356 event pairs, 12 based on Foata normal form. 0/849 useless extension candidates. Maximal degree in co-relation 1038. Up to 40 conditions per place. [2022-11-16 11:31:00,075 INFO L137 encePairwiseOnDemand]: 638/644 looper letters, 17 selfloop transitions, 1 changer transitions 0/583 dead transitions. [2022-11-16 11:31:00,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 583 transitions, 1212 flow [2022-11-16 11:31:00,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:00,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:31:00,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1835 transitions. [2022-11-16 11:31:00,081 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9497929606625258 [2022-11-16 11:31:00,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1835 transitions. [2022-11-16 11:31:00,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1835 transitions. [2022-11-16 11:31:00,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:00,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1835 transitions. [2022-11-16 11:31:00,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 611.6666666666666) internal successors, (1835), 3 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:00,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:00,096 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:00,097 INFO L175 Difference]: Start difference. First operand has 578 places, 588 transitions, 1186 flow. Second operand 3 states and 1835 transitions. [2022-11-16 11:31:00,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 583 transitions, 1212 flow [2022-11-16 11:31:00,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 583 transitions, 1208 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:31:00,110 INFO L231 Difference]: Finished difference. Result has 573 places, 583 transitions, 1174 flow [2022-11-16 11:31:00,112 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1172, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=582, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1174, PETRI_PLACES=573, PETRI_TRANSITIONS=583} [2022-11-16 11:31:00,113 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -20 predicate places. [2022-11-16 11:31:00,113 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 583 transitions, 1174 flow [2022-11-16 11:31:00,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:00,115 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:00,115 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] [2022-11-16 11:31:00,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:31:00,116 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:31:00,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:00,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1043330331, now seen corresponding path program 1 times [2022-11-16 11:31:00,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:00,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089125899] [2022-11-16 11:31:00,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:00,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:00,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:00,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:00,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089125899] [2022-11-16 11:31:00,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089125899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:00,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:00,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:31:00,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060908616] [2022-11-16 11:31:00,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:00,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:00,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:00,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:00,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:00,222 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-16 11:31:00,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 583 transitions, 1174 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:00,226 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:00,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-16 11:31:00,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:00,566 INFO L130 PetriNetUnfolder]: 55/1079 cut-off events. [2022-11-16 11:31:00,567 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-16 11:31:00,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1162 conditions, 1079 events. 55/1079 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4881 event pairs, 21 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 1111. Up to 69 conditions per place. [2022-11-16 11:31:00,588 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 21 selfloop transitions, 2 changer transitions 0/582 dead transitions. [2022-11-16 11:31:00,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 574 places, 582 transitions, 1218 flow [2022-11-16 11:31:00,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:00,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:31:00,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1836 transitions. [2022-11-16 11:31:00,594 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503105590062112 [2022-11-16 11:31:00,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1836 transitions. [2022-11-16 11:31:00,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1836 transitions. [2022-11-16 11:31:00,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:00,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1836 transitions. [2022-11-16 11:31:00,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.0) internal successors, (1836), 3 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:00,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:00,608 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:00,609 INFO L175 Difference]: Start difference. First operand has 573 places, 583 transitions, 1174 flow. Second operand 3 states and 1836 transitions. [2022-11-16 11:31:00,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 574 places, 582 transitions, 1218 flow [2022-11-16 11:31:00,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 582 transitions, 1217 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:31:00,622 INFO L231 Difference]: Finished difference. Result has 573 places, 582 transitions, 1175 flow [2022-11-16 11:31:00,623 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1171, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1175, PETRI_PLACES=573, PETRI_TRANSITIONS=582} [2022-11-16 11:31:00,627 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -20 predicate places. [2022-11-16 11:31:00,628 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 582 transitions, 1175 flow [2022-11-16 11:31:00,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:00,629 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:00,630 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] [2022-11-16 11:31:00,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:31:00,630 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:31:00,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:00,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1405162842, now seen corresponding path program 1 times [2022-11-16 11:31:00,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:00,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170097848] [2022-11-16 11:31:00,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:00,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:01,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:01,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:01,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170097848] [2022-11-16 11:31:01,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170097848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:01,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:01,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:31:01,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520135393] [2022-11-16 11:31:01,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:01,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:31:01,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:01,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:31:01,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:31:01,468 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 644 [2022-11-16 11:31:01,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 582 transitions, 1175 flow. Second operand has 6 states, 6 states have (on average 482.8333333333333) internal successors, (2897), 6 states have internal predecessors, (2897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:01,473 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:01,473 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 644 [2022-11-16 11:31:01,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:27,402 INFO L130 PetriNetUnfolder]: 45454/109850 cut-off events. [2022-11-16 11:31:27,402 INFO L131 PetriNetUnfolder]: For 351/407 co-relation queries the response was YES. [2022-11-16 11:31:27,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170125 conditions, 109850 events. 45454/109850 cut-off events. For 351/407 co-relation queries the response was YES. Maximal size of possible extension queue 3212. Compared 1414452 event pairs, 42984 based on Foata normal form. 0/89767 useless extension candidates. Maximal degree in co-relation 170075. Up to 60072 conditions per place. [2022-11-16 11:31:28,695 INFO L137 encePairwiseOnDemand]: 626/644 looper letters, 128 selfloop transitions, 15 changer transitions 0/579 dead transitions. [2022-11-16 11:31:28,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 579 transitions, 1455 flow [2022-11-16 11:31:28,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:31:28,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:31:28,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3032 transitions. [2022-11-16 11:31:28,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7846790890269151 [2022-11-16 11:31:28,705 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3032 transitions. [2022-11-16 11:31:28,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3032 transitions. [2022-11-16 11:31:28,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:28,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3032 transitions. [2022-11-16 11:31:28,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 505.3333333333333) internal successors, (3032), 6 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:28,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 644.0) internal successors, (4508), 7 states have internal predecessors, (4508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:28,730 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 644.0) internal successors, (4508), 7 states have internal predecessors, (4508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:28,730 INFO L175 Difference]: Start difference. First operand has 573 places, 582 transitions, 1175 flow. Second operand 6 states and 3032 transitions. [2022-11-16 11:31:28,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 579 transitions, 1455 flow [2022-11-16 11:31:28,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 579 transitions, 1451 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:31:28,744 INFO L231 Difference]: Finished difference. Result has 573 places, 579 transitions, 1195 flow [2022-11-16 11:31:28,745 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1165, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1195, PETRI_PLACES=573, PETRI_TRANSITIONS=579} [2022-11-16 11:31:28,749 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -20 predicate places. [2022-11-16 11:31:28,749 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 579 transitions, 1195 flow [2022-11-16 11:31:28,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 482.8333333333333) internal successors, (2897), 6 states have internal predecessors, (2897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:28,761 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:28,761 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] [2022-11-16 11:31:28,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:31:28,762 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:31:28,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:28,764 INFO L85 PathProgramCache]: Analyzing trace with hash 244814682, now seen corresponding path program 1 times [2022-11-16 11:31:28,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:28,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574671712] [2022-11-16 11:31:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:28,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:28,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:28,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574671712] [2022-11-16 11:31:28,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574671712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:28,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:28,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:31:28,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359227070] [2022-11-16 11:31:28,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:28,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:28,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:28,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:28,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:28,883 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-16 11:31:28,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 579 transitions, 1195 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:28,887 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:28,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-16 11:31:28,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:29,169 INFO L130 PetriNetUnfolder]: 66/1230 cut-off events. [2022-11-16 11:31:29,169 INFO L131 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-11-16 11:31:29,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1319 conditions, 1230 events. 66/1230 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6481 event pairs, 20 based on Foata normal form. 0/1013 useless extension candidates. Maximal degree in co-relation 1271. Up to 55 conditions per place. [2022-11-16 11:31:29,192 INFO L137 encePairwiseOnDemand]: 638/644 looper letters, 17 selfloop transitions, 1 changer transitions 0/574 dead transitions. [2022-11-16 11:31:29,193 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 574 transitions, 1221 flow [2022-11-16 11:31:29,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:29,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:31:29,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1835 transitions. [2022-11-16 11:31:29,198 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9497929606625258 [2022-11-16 11:31:29,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1835 transitions. [2022-11-16 11:31:29,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1835 transitions. [2022-11-16 11:31:29,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:29,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1835 transitions. [2022-11-16 11:31:29,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 611.6666666666666) internal successors, (1835), 3 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,210 INFO L175 Difference]: Start difference. First operand has 573 places, 579 transitions, 1195 flow. Second operand 3 states and 1835 transitions. [2022-11-16 11:31:29,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 574 transitions, 1221 flow [2022-11-16 11:31:29,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 574 transitions, 1191 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:31:29,223 INFO L231 Difference]: Finished difference. Result has 565 places, 574 transitions, 1157 flow [2022-11-16 11:31:29,225 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1155, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1157, PETRI_PLACES=565, PETRI_TRANSITIONS=574} [2022-11-16 11:31:29,225 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -28 predicate places. [2022-11-16 11:31:29,226 INFO L495 AbstractCegarLoop]: Abstraction has has 565 places, 574 transitions, 1157 flow [2022-11-16 11:31:29,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,227 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:29,227 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] [2022-11-16 11:31:29,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:31:29,228 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:31:29,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:29,228 INFO L85 PathProgramCache]: Analyzing trace with hash 707788467, now seen corresponding path program 1 times [2022-11-16 11:31:29,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:29,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451047598] [2022-11-16 11:31:29,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:29,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:29,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:29,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:29,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451047598] [2022-11-16 11:31:29,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451047598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:29,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:29,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:31:29,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967004237] [2022-11-16 11:31:29,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:29,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:29,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:29,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:29,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:29,302 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-16 11:31:29,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 574 transitions, 1157 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:29,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-16 11:31:29,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:29,859 INFO L130 PetriNetUnfolder]: 83/1298 cut-off events. [2022-11-16 11:31:29,859 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-16 11:31:29,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1421 conditions, 1298 events. 83/1298 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7143 event pairs, 39 based on Foata normal form. 0/1066 useless extension candidates. Maximal degree in co-relation 1370. Up to 96 conditions per place. [2022-11-16 11:31:29,879 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 21 selfloop transitions, 2 changer transitions 0/573 dead transitions. [2022-11-16 11:31:29,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 573 transitions, 1201 flow [2022-11-16 11:31:29,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:29,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:31:29,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1836 transitions. [2022-11-16 11:31:29,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503105590062112 [2022-11-16 11:31:29,887 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1836 transitions. [2022-11-16 11:31:29,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1836 transitions. [2022-11-16 11:31:29,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:29,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1836 transitions. [2022-11-16 11:31:29,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.0) internal successors, (1836), 3 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,905 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,906 INFO L175 Difference]: Start difference. First operand has 565 places, 574 transitions, 1157 flow. Second operand 3 states and 1836 transitions. [2022-11-16 11:31:29,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 573 transitions, 1201 flow [2022-11-16 11:31:29,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 573 transitions, 1200 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:31:29,922 INFO L231 Difference]: Finished difference. Result has 565 places, 573 transitions, 1158 flow [2022-11-16 11:31:29,923 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1154, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1158, PETRI_PLACES=565, PETRI_TRANSITIONS=573} [2022-11-16 11:31:29,926 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -28 predicate places. [2022-11-16 11:31:29,927 INFO L495 AbstractCegarLoop]: Abstraction has has 565 places, 573 transitions, 1158 flow [2022-11-16 11:31:29,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:29,928 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:29,928 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] [2022-11-16 11:31:29,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:31:29,929 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:31:29,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:29,929 INFO L85 PathProgramCache]: Analyzing trace with hash -2111893535, now seen corresponding path program 1 times [2022-11-16 11:31:29,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:29,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715348136] [2022-11-16 11:31:29,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:29,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:30,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:30,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:30,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715348136] [2022-11-16 11:31:30,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715348136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:30,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:30,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:31:30,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674408017] [2022-11-16 11:31:30,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:30,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:30,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:30,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:30,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:30,007 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-16 11:31:30,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 573 transitions, 1158 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:30,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-16 11:31:30,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:30,350 INFO L130 PetriNetUnfolder]: 59/1118 cut-off events. [2022-11-16 11:31:30,350 INFO L131 PetriNetUnfolder]: For 17/19 co-relation queries the response was YES. [2022-11-16 11:31:30,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 1118 events. 59/1118 cut-off events. For 17/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5183 event pairs, 20 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 1136. Up to 56 conditions per place. [2022-11-16 11:31:30,373 INFO L137 encePairwiseOnDemand]: 638/644 looper letters, 17 selfloop transitions, 1 changer transitions 0/568 dead transitions. [2022-11-16 11:31:30,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 568 transitions, 1184 flow [2022-11-16 11:31:30,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:30,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:31:30,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1835 transitions. [2022-11-16 11:31:30,391 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9497929606625258 [2022-11-16 11:31:30,391 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1835 transitions. [2022-11-16 11:31:30,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1835 transitions. [2022-11-16 11:31:30,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:30,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1835 transitions. [2022-11-16 11:31:30,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 611.6666666666666) internal successors, (1835), 3 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,420 INFO L175 Difference]: Start difference. First operand has 565 places, 573 transitions, 1158 flow. Second operand 3 states and 1835 transitions. [2022-11-16 11:31:30,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 568 transitions, 1184 flow [2022-11-16 11:31:30,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 568 transitions, 1180 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:31:30,435 INFO L231 Difference]: Finished difference. Result has 560 places, 568 transitions, 1146 flow [2022-11-16 11:31:30,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1146, PETRI_PLACES=560, PETRI_TRANSITIONS=568} [2022-11-16 11:31:30,438 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -33 predicate places. [2022-11-16 11:31:30,439 INFO L495 AbstractCegarLoop]: Abstraction has has 560 places, 568 transitions, 1146 flow [2022-11-16 11:31:30,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,440 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:30,440 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] [2022-11-16 11:31:30,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:31:30,441 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:31:30,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:30,441 INFO L85 PathProgramCache]: Analyzing trace with hash -911574077, now seen corresponding path program 1 times [2022-11-16 11:31:30,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:30,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938333656] [2022-11-16 11:31:30,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:30,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:30,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:30,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:30,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938333656] [2022-11-16 11:31:30,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938333656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:30,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:30,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:31:30,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407809876] [2022-11-16 11:31:30,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:30,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:30,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:30,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:30,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:30,544 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-16 11:31:30,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 568 transitions, 1146 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:30,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-16 11:31:30,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:30,861 INFO L130 PetriNetUnfolder]: 74/1061 cut-off events. [2022-11-16 11:31:30,861 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-16 11:31:30,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1170 conditions, 1061 events. 74/1061 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4883 event pairs, 39 based on Foata normal form. 0/892 useless extension candidates. Maximal degree in co-relation 1119. Up to 96 conditions per place. [2022-11-16 11:31:30,880 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 21 selfloop transitions, 2 changer transitions 0/567 dead transitions. [2022-11-16 11:31:30,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 567 transitions, 1190 flow [2022-11-16 11:31:30,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:30,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:31:30,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1836 transitions. [2022-11-16 11:31:30,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503105590062112 [2022-11-16 11:31:30,887 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1836 transitions. [2022-11-16 11:31:30,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1836 transitions. [2022-11-16 11:31:30,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:30,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1836 transitions. [2022-11-16 11:31:30,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.0) internal successors, (1836), 3 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,904 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,904 INFO L175 Difference]: Start difference. First operand has 560 places, 568 transitions, 1146 flow. Second operand 3 states and 1836 transitions. [2022-11-16 11:31:30,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 567 transitions, 1190 flow [2022-11-16 11:31:30,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 567 transitions, 1189 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:31:30,919 INFO L231 Difference]: Finished difference. Result has 560 places, 567 transitions, 1147 flow [2022-11-16 11:31:30,921 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1143, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1147, PETRI_PLACES=560, PETRI_TRANSITIONS=567} [2022-11-16 11:31:30,922 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -33 predicate places. [2022-11-16 11:31:30,922 INFO L495 AbstractCegarLoop]: Abstraction has has 560 places, 567 transitions, 1147 flow [2022-11-16 11:31:30,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,924 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:30,924 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] [2022-11-16 11:31:30,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:31:30,925 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:31:30,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:30,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1236871821, now seen corresponding path program 1 times [2022-11-16 11:31:30,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:30,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579555669] [2022-11-16 11:31:30,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:30,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:31,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:31,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:31,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579555669] [2022-11-16 11:31:31,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579555669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:31,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:31,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:31:31,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144809415] [2022-11-16 11:31:31,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:31,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:31,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:31,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:31,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:31,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 644 [2022-11-16 11:31:31,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 567 transitions, 1147 flow. Second operand has 3 states, 3 states have (on average 593.0) internal successors, (1779), 3 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:31,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 644 [2022-11-16 11:31:31,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:31,242 INFO L130 PetriNetUnfolder]: 48/700 cut-off events. [2022-11-16 11:31:31,242 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:31:31,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 700 events. 48/700 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2194 event pairs, 6 based on Foata normal form. 0/619 useless extension candidates. Maximal degree in co-relation 766. Up to 61 conditions per place. [2022-11-16 11:31:31,253 INFO L137 encePairwiseOnDemand]: 633/644 looper letters, 27 selfloop transitions, 2 changer transitions 0/560 dead transitions. [2022-11-16 11:31:31,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 560 transitions, 1193 flow [2022-11-16 11:31:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:31,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:31:31,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1814 transitions. [2022-11-16 11:31:31,261 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9389233954451346 [2022-11-16 11:31:31,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1814 transitions. [2022-11-16 11:31:31,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1814 transitions. [2022-11-16 11:31:31,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:31,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1814 transitions. [2022-11-16 11:31:31,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.6666666666666) internal successors, (1814), 3 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,277 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,277 INFO L175 Difference]: Start difference. First operand has 560 places, 567 transitions, 1147 flow. Second operand 3 states and 1814 transitions. [2022-11-16 11:31:31,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 560 transitions, 1193 flow [2022-11-16 11:31:31,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 560 transitions, 1189 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:31:31,298 INFO L231 Difference]: Finished difference. Result has 551 places, 558 transitions, 1129 flow [2022-11-16 11:31:31,299 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1125, PETRI_DIFFERENCE_MINUEND_PLACES=549, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1129, PETRI_PLACES=551, PETRI_TRANSITIONS=558} [2022-11-16 11:31:31,299 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -42 predicate places. [2022-11-16 11:31:31,300 INFO L495 AbstractCegarLoop]: Abstraction has has 551 places, 558 transitions, 1129 flow [2022-11-16 11:31:31,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.0) internal successors, (1779), 3 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,301 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:31,301 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] [2022-11-16 11:31:31,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:31:31,302 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:31:31,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:31,303 INFO L85 PathProgramCache]: Analyzing trace with hash -642911240, now seen corresponding path program 1 times [2022-11-16 11:31:31,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:31,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107271776] [2022-11-16 11:31:31,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:31,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:31,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:31,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:31,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107271776] [2022-11-16 11:31:31,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107271776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:31,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:31,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:31:31,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012300100] [2022-11-16 11:31:31,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:31,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:31,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:31,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:31,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:31,397 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 644 [2022-11-16 11:31:31,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 558 transitions, 1129 flow. Second operand has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:31,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 644 [2022-11-16 11:31:31,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:31,645 INFO L130 PetriNetUnfolder]: 51/779 cut-off events. [2022-11-16 11:31:31,645 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-16 11:31:31,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 882 conditions, 779 events. 51/779 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2844 event pairs, 20 based on Foata normal form. 0/689 useless extension candidates. Maximal degree in co-relation 832. Up to 60 conditions per place. [2022-11-16 11:31:31,658 INFO L137 encePairwiseOnDemand]: 633/644 looper letters, 27 selfloop transitions, 2 changer transitions 0/551 dead transitions. [2022-11-16 11:31:31,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 551 transitions, 1175 flow [2022-11-16 11:31:31,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:31,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:31:31,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1814 transitions. [2022-11-16 11:31:31,666 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9389233954451346 [2022-11-16 11:31:31,666 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1814 transitions. [2022-11-16 11:31:31,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1814 transitions. [2022-11-16 11:31:31,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:31,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1814 transitions. [2022-11-16 11:31:31,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.6666666666666) internal successors, (1814), 3 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,686 INFO L175 Difference]: Start difference. First operand has 551 places, 558 transitions, 1129 flow. Second operand 3 states and 1814 transitions. [2022-11-16 11:31:31,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 551 transitions, 1175 flow [2022-11-16 11:31:31,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 551 transitions, 1171 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:31:31,702 INFO L231 Difference]: Finished difference. Result has 542 places, 549 transitions, 1111 flow [2022-11-16 11:31:31,703 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1111, PETRI_PLACES=542, PETRI_TRANSITIONS=549} [2022-11-16 11:31:31,704 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -51 predicate places. [2022-11-16 11:31:31,704 INFO L495 AbstractCegarLoop]: Abstraction has has 542 places, 549 transitions, 1111 flow [2022-11-16 11:31:31,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,705 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:31,705 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] [2022-11-16 11:31:31,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:31:31,706 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:31:31,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:31,706 INFO L85 PathProgramCache]: Analyzing trace with hash -965931463, now seen corresponding path program 1 times [2022-11-16 11:31:31,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:31,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338747461] [2022-11-16 11:31:31,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:31,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:31,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:31,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:31,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338747461] [2022-11-16 11:31:31,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338747461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:31,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:31,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:31:31,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21297900] [2022-11-16 11:31:31,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:31,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:31,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:31,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:31,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:31,807 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 644 [2022-11-16 11:31:31,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 549 transitions, 1111 flow. Second operand has 3 states, 3 states have (on average 615.6666666666666) internal successors, (1847), 3 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:31,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:31,810 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 644 [2022-11-16 11:31:31,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:31,996 INFO L130 PetriNetUnfolder]: 38/676 cut-off events. [2022-11-16 11:31:31,996 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:31:32,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 676 events. 38/676 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1906 event pairs, 12 based on Foata normal form. 0/605 useless extension candidates. Maximal degree in co-relation 702. Up to 37 conditions per place. [2022-11-16 11:31:32,005 INFO L137 encePairwiseOnDemand]: 640/644 looper letters, 14 selfloop transitions, 3 changer transitions 0/552 dead transitions. [2022-11-16 11:31:32,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 552 transitions, 1153 flow [2022-11-16 11:31:32,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:32,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:31:32,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1860 transitions. [2022-11-16 11:31:32,012 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9627329192546584 [2022-11-16 11:31:32,013 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1860 transitions. [2022-11-16 11:31:32,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1860 transitions. [2022-11-16 11:31:32,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:32,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1860 transitions. [2022-11-16 11:31:32,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,030 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,030 INFO L175 Difference]: Start difference. First operand has 542 places, 549 transitions, 1111 flow. Second operand 3 states and 1860 transitions. [2022-11-16 11:31:32,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 552 transitions, 1153 flow [2022-11-16 11:31:32,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 552 transitions, 1149 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:31:32,047 INFO L231 Difference]: Finished difference. Result has 544 places, 550 transitions, 1125 flow [2022-11-16 11:31:32,048 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1125, PETRI_PLACES=544, PETRI_TRANSITIONS=550} [2022-11-16 11:31:32,049 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -49 predicate places. [2022-11-16 11:31:32,049 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 550 transitions, 1125 flow [2022-11-16 11:31:32,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 615.6666666666666) internal successors, (1847), 3 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,051 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:32,051 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] [2022-11-16 11:31:32,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:31:32,051 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:31:32,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:32,052 INFO L85 PathProgramCache]: Analyzing trace with hash -883135441, now seen corresponding path program 1 times [2022-11-16 11:31:32,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:32,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036156032] [2022-11-16 11:31:32,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:32,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:32,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:32,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:32,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036156032] [2022-11-16 11:31:32,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036156032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:32,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:32,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:31:32,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259626541] [2022-11-16 11:31:32,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:32,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:32,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:32,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:32,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:32,159 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 644 [2022-11-16 11:31:32,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 550 transitions, 1125 flow. Second operand has 3 states, 3 states have (on average 593.6666666666666) internal successors, (1781), 3 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:32,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 644 [2022-11-16 11:31:32,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:32,384 INFO L130 PetriNetUnfolder]: 48/683 cut-off events. [2022-11-16 11:31:32,385 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-11-16 11:31:32,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 780 conditions, 683 events. 48/683 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2335 event pairs, 6 based on Foata normal form. 0/619 useless extension candidates. Maximal degree in co-relation 729. Up to 59 conditions per place. [2022-11-16 11:31:32,393 INFO L137 encePairwiseOnDemand]: 633/644 looper letters, 27 selfloop transitions, 2 changer transitions 0/543 dead transitions. [2022-11-16 11:31:32,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 543 transitions, 1171 flow [2022-11-16 11:31:32,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:32,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:31:32,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1814 transitions. [2022-11-16 11:31:32,400 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9389233954451346 [2022-11-16 11:31:32,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1814 transitions. [2022-11-16 11:31:32,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1814 transitions. [2022-11-16 11:31:32,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:32,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1814 transitions. [2022-11-16 11:31:32,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.6666666666666) internal successors, (1814), 3 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,415 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,416 INFO L175 Difference]: Start difference. First operand has 544 places, 550 transitions, 1125 flow. Second operand 3 states and 1814 transitions. [2022-11-16 11:31:32,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 543 transitions, 1171 flow [2022-11-16 11:31:32,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 543 transitions, 1165 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:31:32,430 INFO L231 Difference]: Finished difference. Result has 535 places, 541 transitions, 1105 flow [2022-11-16 11:31:32,431 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1101, PETRI_DIFFERENCE_MINUEND_PLACES=533, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1105, PETRI_PLACES=535, PETRI_TRANSITIONS=541} [2022-11-16 11:31:32,432 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -58 predicate places. [2022-11-16 11:31:32,432 INFO L495 AbstractCegarLoop]: Abstraction has has 535 places, 541 transitions, 1105 flow [2022-11-16 11:31:32,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.6666666666666) internal successors, (1781), 3 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,434 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:32,434 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] [2022-11-16 11:31:32,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:31:32,435 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:31:32,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:32,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1444306538, now seen corresponding path program 1 times [2022-11-16 11:31:32,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:32,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038094976] [2022-11-16 11:31:32,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:32,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:32,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:32,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:32,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038094976] [2022-11-16 11:31:32,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038094976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:32,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:32,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:31:32,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999083235] [2022-11-16 11:31:32,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:32,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:32,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:32,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:32,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:32,562 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 607 out of 644 [2022-11-16 11:31:32,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 541 transitions, 1105 flow. Second operand has 3 states, 3 states have (on average 608.6666666666666) internal successors, (1826), 3 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:32,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 607 of 644 [2022-11-16 11:31:32,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:32,870 INFO L130 PetriNetUnfolder]: 49/1005 cut-off events. [2022-11-16 11:31:32,871 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-16 11:31:32,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 1005 events. 49/1005 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3979 event pairs, 2 based on Foata normal form. 0/913 useless extension candidates. Maximal degree in co-relation 1043. Up to 45 conditions per place. [2022-11-16 11:31:32,882 INFO L137 encePairwiseOnDemand]: 636/644 looper letters, 21 selfloop transitions, 4 changer transitions 0/546 dead transitions. [2022-11-16 11:31:32,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 546 transitions, 1170 flow [2022-11-16 11:31:32,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:32,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:31:32,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1850 transitions. [2022-11-16 11:31:32,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9575569358178054 [2022-11-16 11:31:32,887 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1850 transitions. [2022-11-16 11:31:32,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1850 transitions. [2022-11-16 11:31:32,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:32,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1850 transitions. [2022-11-16 11:31:32,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 616.6666666666666) internal successors, (1850), 3 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,899 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,899 INFO L175 Difference]: Start difference. First operand has 535 places, 541 transitions, 1105 flow. Second operand 3 states and 1850 transitions. [2022-11-16 11:31:32,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 546 transitions, 1170 flow [2022-11-16 11:31:32,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 546 transitions, 1166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:31:32,910 INFO L231 Difference]: Finished difference. Result has 532 places, 541 transitions, 1121 flow [2022-11-16 11:31:32,912 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1093, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1121, PETRI_PLACES=532, PETRI_TRANSITIONS=541} [2022-11-16 11:31:32,912 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -61 predicate places. [2022-11-16 11:31:32,913 INFO L495 AbstractCegarLoop]: Abstraction has has 532 places, 541 transitions, 1121 flow [2022-11-16 11:31:32,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 608.6666666666666) internal successors, (1826), 3 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:32,914 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] [2022-11-16 11:31:32,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:31:32,914 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:31:32,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:32,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1242759772, now seen corresponding path program 1 times [2022-11-16 11:31:32,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:32,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139289893] [2022-11-16 11:31:32,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:32,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:32,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:32,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:32,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139289893] [2022-11-16 11:31:32,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139289893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:32,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:32,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:31:32,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342513269] [2022-11-16 11:31:32,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:32,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:32,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:32,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:32,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:32,995 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 644 [2022-11-16 11:31:32,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 541 transitions, 1121 flow. Second operand has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:32,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:32,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 644 [2022-11-16 11:31:32,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:31:33,202 INFO L130 PetriNetUnfolder]: 63/937 cut-off events. [2022-11-16 11:31:33,202 INFO L131 PetriNetUnfolder]: For 24/34 co-relation queries the response was YES. [2022-11-16 11:31:33,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1052 conditions, 937 events. 63/937 cut-off events. For 24/34 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3764 event pairs, 18 based on Foata normal form. 0/839 useless extension candidates. Maximal degree in co-relation 1001. Up to 54 conditions per place. [2022-11-16 11:31:33,218 INFO L137 encePairwiseOnDemand]: 640/644 looper letters, 14 selfloop transitions, 3 changer transitions 0/544 dead transitions. [2022-11-16 11:31:33,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 544 transitions, 1163 flow [2022-11-16 11:31:33,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:33,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:31:33,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1860 transitions. [2022-11-16 11:31:33,224 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9627329192546584 [2022-11-16 11:31:33,224 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1860 transitions. [2022-11-16 11:31:33,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1860 transitions. [2022-11-16 11:31:33,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:31:33,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1860 transitions. [2022-11-16 11:31:33,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:33,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:33,240 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:33,241 INFO L175 Difference]: Start difference. First operand has 532 places, 541 transitions, 1121 flow. Second operand 3 states and 1860 transitions. [2022-11-16 11:31:33,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 544 transitions, 1163 flow [2022-11-16 11:31:33,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 544 transitions, 1163 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:31:33,252 INFO L231 Difference]: Finished difference. Result has 536 places, 542 transitions, 1139 flow [2022-11-16 11:31:33,254 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1139, PETRI_PLACES=536, PETRI_TRANSITIONS=542} [2022-11-16 11:31:33,254 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -57 predicate places. [2022-11-16 11:31:33,257 INFO L495 AbstractCegarLoop]: Abstraction has has 536 places, 542 transitions, 1139 flow [2022-11-16 11:31:33,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:33,258 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:31:33,258 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] [2022-11-16 11:31:33,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:31:33,259 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-16 11:31:33,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:33,259 INFO L85 PathProgramCache]: Analyzing trace with hash -191153564, now seen corresponding path program 1 times [2022-11-16 11:31:33,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:33,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907007909] [2022-11-16 11:31:33,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:33,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:34,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:34,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:34,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907007909] [2022-11-16 11:31:34,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907007909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:34,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:34,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:31:34,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111730033] [2022-11-16 11:31:34,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:34,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:31:34,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:34,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:31:34,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:31:34,039 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 508 out of 644 [2022-11-16 11:31:34,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 542 transitions, 1139 flow. Second operand has 6 states, 6 states have (on average 510.0) internal successors, (3060), 6 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:34,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:31:34,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 508 of 644 [2022-11-16 11:31:34,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand