./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN --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 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786 --- 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-6b4ec56 [2022-11-20 11:56:47,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:56:47,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:56:47,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:56:47,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:56:47,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:56:47,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:56:47,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:56:47,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:56:47,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:56:47,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:56:47,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:56:47,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:56:47,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:56:47,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:56:47,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:56:47,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:56:47,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:56:47,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:56:47,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:56:47,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:56:47,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:56:47,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:56:47,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:56:47,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:56:47,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:56:47,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:56:47,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:56:47,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:56:47,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:56:47,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:56:47,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:56:47,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:56:47,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:56:47,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:56:47,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:56:47,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:56:47,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:56:47,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:56:47,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:56:47,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:56:47,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:56:47,838 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:56:47,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:56:47,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:56:47,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:56:47,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:56:47,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:56:47,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:56:47,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:56:47,845 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:56:47,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:56:47,847 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:56:47,847 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:56:47,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:56:47,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:56:47,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:56:47,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:56:47,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:56:47,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:56:47,849 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:56:47,850 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:56:47,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:56:47,850 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:56:47,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:56:47,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:56:47,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:56:47,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:56:47,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:56:47,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:56:47,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:56:47,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:56:47,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:56:47,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:56:47,854 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:56:47,854 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:56:47,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:56:47,855 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_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786 [2022-11-20 11:56:48,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:56:48,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:56:48,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:56:48,258 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:56:48,259 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:56:48,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2022-11-20 11:56:52,025 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:56:52,325 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:56:52,326 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2022-11-20 11:56:52,340 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN/data/f4a0727cf/8341c94840bb4ff4843b8dd604f6b9dd/FLAGab511c024 [2022-11-20 11:56:52,357 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN/data/f4a0727cf/8341c94840bb4ff4843b8dd604f6b9dd [2022-11-20 11:56:52,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:56:52,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:56:52,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:56:52,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:56:52,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:56:52,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:56:52" (1/1) ... [2022-11-20 11:56:52,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75fcb004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52, skipping insertion in model container [2022-11-20 11:56:52,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:56:52" (1/1) ... [2022-11-20 11:56:52,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:56:52,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:56:52,694 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c[6450,6463] [2022-11-20 11:56:52,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:56:52,717 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:56:52,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c[6450,6463] [2022-11-20 11:56:52,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:56:52,835 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:56:52,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52 WrapperNode [2022-11-20 11:56:52,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:56:52,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:56:52,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:56:52,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:56:52,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52" (1/1) ... [2022-11-20 11:56:52,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52" (1/1) ... [2022-11-20 11:56:52,959 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 1305 [2022-11-20 11:56:52,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:56:52,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:56:52,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:56:52,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:56:52,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52" (1/1) ... [2022-11-20 11:56:52,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52" (1/1) ... [2022-11-20 11:56:52,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52" (1/1) ... [2022-11-20 11:56:52,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52" (1/1) ... [2022-11-20 11:56:53,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52" (1/1) ... [2022-11-20 11:56:53,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52" (1/1) ... [2022-11-20 11:56:53,098 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52" (1/1) ... [2022-11-20 11:56:53,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52" (1/1) ... [2022-11-20 11:56:53,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:56:53,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:56:53,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:56:53,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:56:53,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52" (1/1) ... [2022-11-20 11:56:53,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:56:53,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:56:53,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:56:53,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032a1779-4ab1-4b2d-bb84-2e0233d10ab7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:56:53,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:56:53,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:56:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:56:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:56:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:56:53,278 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:56:53,278 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:56:53,279 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:56:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:56:53,279 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:56:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:56:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:56:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:56:53,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:56:53,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:56:53,283 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:56:53,587 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:56:53,589 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:56:55,818 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:56:55,864 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:56:55,865 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 11:56:55,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:56:55 BoogieIcfgContainer [2022-11-20 11:56:55,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:56:55,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:56:55,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:56:55,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:56:55,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:56:52" (1/3) ... [2022-11-20 11:56:55,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43aed7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:56:55, skipping insertion in model container [2022-11-20 11:56:55,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:52" (2/3) ... [2022-11-20 11:56:55,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43aed7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:56:55, skipping insertion in model container [2022-11-20 11:56:55,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:56:55" (3/3) ... [2022-11-20 11:56:55,881 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c [2022-11-20 11:56:55,893 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:56:55,908 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:56:55,908 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 228 error locations. [2022-11-20 11:56:55,908 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:56:56,255 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 11:56:56,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1656 places, 1757 transitions, 3538 flow [2022-11-20 11:56:58,686 INFO L130 PetriNetUnfolder]: 111/1754 cut-off events. [2022-11-20 11:56:58,687 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:56:58,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1767 conditions, 1754 events. 111/1754 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 7798 event pairs, 0 based on Foata normal form. 0/1415 useless extension candidates. Maximal degree in co-relation 1382. Up to 2 conditions per place. [2022-11-20 11:56:58,764 INFO L82 GeneralOperation]: Start removeDead. Operand has 1656 places, 1757 transitions, 3538 flow [2022-11-20 11:56:58,838 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1631 places, 1730 transitions, 3478 flow [2022-11-20 11:56:58,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:56:58,857 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;@1abf3d0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:56:58,857 INFO L358 AbstractCegarLoop]: Starting to check reachability of 429 error locations. [2022-11-20 11:56:58,862 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-11-20 11:56:58,863 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:56:58,863 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:56:58,864 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] [2022-11-20 11:56:58,865 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:56:58,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:58,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1570181020, now seen corresponding path program 1 times [2022-11-20 11:56:58,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:56:58,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25316449] [2022-11-20 11:56:58,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:58,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:56:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:59,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:56:59,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:56:59,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25316449] [2022-11-20 11:56:59,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25316449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:59,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:59,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:56:59,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807890508] [2022-11-20 11:56:59,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:59,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:56:59,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:56:59,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:56:59,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:56:59,231 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-20 11:56:59,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1631 places, 1730 transitions, 3478 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:56:59,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:56:59,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-20 11:56:59,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:57:02,613 INFO L130 PetriNetUnfolder]: 145/2917 cut-off events. [2022-11-20 11:57:02,613 INFO L131 PetriNetUnfolder]: For 51/53 co-relation queries the response was YES. [2022-11-20 11:57:02,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3018 conditions, 2917 events. 145/2917 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 18251 event pairs, 21 based on Foata normal form. 222/2566 useless extension candidates. Maximal degree in co-relation 2516. Up to 63 conditions per place. [2022-11-20 11:57:02,813 INFO L137 encePairwiseOnDemand]: 1718/1757 looper letters, 15 selfloop transitions, 2 changer transitions 6/1693 dead transitions. [2022-11-20 11:57:02,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1632 places, 1693 transitions, 3438 flow [2022-11-20 11:57:02,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:02,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:57:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5157 transitions. [2022-11-20 11:57:02,849 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9783722253841776 [2022-11-20 11:57:02,850 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5157 transitions. [2022-11-20 11:57:02,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5157 transitions. [2022-11-20 11:57:02,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:57:02,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5157 transitions. [2022-11-20 11:57:02,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1719.0) internal successors, (5157), 3 states have internal predecessors, (5157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,919 INFO L175 Difference]: Start difference. First operand has 1631 places, 1730 transitions, 3478 flow. Second operand 3 states and 5157 transitions. [2022-11-20 11:57:02,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1632 places, 1693 transitions, 3438 flow [2022-11-20 11:57:02,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1626 places, 1693 transitions, 3426 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:57:02,968 INFO L231 Difference]: Finished difference. Result has 1626 places, 1687 transitions, 3384 flow [2022-11-20 11:57:02,973 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3392, PETRI_DIFFERENCE_MINUEND_PLACES=1624, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3384, PETRI_PLACES=1626, PETRI_TRANSITIONS=1687} [2022-11-20 11:57:02,978 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -5 predicate places. [2022-11-20 11:57:02,978 INFO L495 AbstractCegarLoop]: Abstraction has has 1626 places, 1687 transitions, 3384 flow [2022-11-20 11:57:02,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,982 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:57:02,983 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:02,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:57:02,983 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:57:02,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:02,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1234220149, now seen corresponding path program 1 times [2022-11-20 11:57:02,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:02,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971216495] [2022-11-20 11:57:02,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:02,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:03,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:03,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971216495] [2022-11-20 11:57:03,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971216495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:03,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:03,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:03,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867488349] [2022-11-20 11:57:03,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:03,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:03,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:03,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:03,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:03,092 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-20 11:57:03,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1626 places, 1687 transitions, 3384 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:03,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:57:03,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-20 11:57:03,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:57:06,166 INFO L130 PetriNetUnfolder]: 145/2938 cut-off events. [2022-11-20 11:57:06,167 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-20 11:57:06,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3016 conditions, 2938 events. 145/2938 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 18962 event pairs, 21 based on Foata normal form. 0/2372 useless extension candidates. Maximal degree in co-relation 2967. Up to 63 conditions per place. [2022-11-20 11:57:06,372 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1686 dead transitions. [2022-11-20 11:57:06,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1621 places, 1686 transitions, 3416 flow [2022-11-20 11:57:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:06,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:57:06,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-20 11:57:06,390 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-20 11:57:06,390 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-20 11:57:06,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-20 11:57:06,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:57:06,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-20 11:57:06,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:06,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:06,435 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:06,435 INFO L175 Difference]: Start difference. First operand has 1626 places, 1687 transitions, 3384 flow. Second operand 3 states and 5121 transitions. [2022-11-20 11:57:06,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1621 places, 1686 transitions, 3416 flow [2022-11-20 11:57:06,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1619 places, 1686 transitions, 3412 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:57:06,474 INFO L231 Difference]: Finished difference. Result has 1619 places, 1686 transitions, 3382 flow [2022-11-20 11:57:06,477 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3378, PETRI_DIFFERENCE_MINUEND_PLACES=1617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3382, PETRI_PLACES=1619, PETRI_TRANSITIONS=1686} [2022-11-20 11:57:06,478 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -12 predicate places. [2022-11-20 11:57:06,479 INFO L495 AbstractCegarLoop]: Abstraction has has 1619 places, 1686 transitions, 3382 flow [2022-11-20 11:57:06,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:06,484 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:57:06,484 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] [2022-11-20 11:57:06,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:57:06,485 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:57:06,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:06,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1280258702, now seen corresponding path program 1 times [2022-11-20 11:57:06,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:06,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769413748] [2022-11-20 11:57:06,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:06,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:06,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:06,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769413748] [2022-11-20 11:57:06,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769413748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:06,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:06,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:06,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667849538] [2022-11-20 11:57:06,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:06,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:06,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:06,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:06,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:06,795 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-20 11:57:06,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1619 places, 1686 transitions, 3382 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:06,806 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:57:06,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-20 11:57:06,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:57:11,041 INFO L130 PetriNetUnfolder]: 209/3970 cut-off events. [2022-11-20 11:57:11,042 INFO L131 PetriNetUnfolder]: For 11/13 co-relation queries the response was YES. [2022-11-20 11:57:11,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4087 conditions, 3970 events. 209/3970 cut-off events. For 11/13 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 27694 event pairs, 39 based on Foata normal form. 0/3188 useless extension candidates. Maximal degree in co-relation 4031. Up to 90 conditions per place. [2022-11-20 11:57:11,231 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1685 dead transitions. [2022-11-20 11:57:11,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1620 places, 1685 transitions, 3414 flow [2022-11-20 11:57:11,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:11,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:57:11,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-20 11:57:11,245 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-20 11:57:11,247 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-20 11:57:11,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-20 11:57:11,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:57:11,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-20 11:57:11,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:11,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:11,291 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:11,291 INFO L175 Difference]: Start difference. First operand has 1619 places, 1686 transitions, 3382 flow. Second operand 3 states and 5121 transitions. [2022-11-20 11:57:11,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1620 places, 1685 transitions, 3414 flow [2022-11-20 11:57:11,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1618 places, 1685 transitions, 3410 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:57:11,326 INFO L231 Difference]: Finished difference. Result has 1618 places, 1685 transitions, 3380 flow [2022-11-20 11:57:11,329 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3376, PETRI_DIFFERENCE_MINUEND_PLACES=1616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1683, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3380, PETRI_PLACES=1618, PETRI_TRANSITIONS=1685} [2022-11-20 11:57:11,332 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -13 predicate places. [2022-11-20 11:57:11,333 INFO L495 AbstractCegarLoop]: Abstraction has has 1618 places, 1685 transitions, 3380 flow [2022-11-20 11:57:11,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:11,335 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:57:11,335 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] [2022-11-20 11:57:11,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:57:11,336 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:57:11,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:11,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1121064490, now seen corresponding path program 1 times [2022-11-20 11:57:11,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:11,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168165120] [2022-11-20 11:57:11,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:11,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:11,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:11,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:11,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168165120] [2022-11-20 11:57:11,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168165120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:11,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:11,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:11,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288562644] [2022-11-20 11:57:11,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:11,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:11,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:11,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:11,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:11,482 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-20 11:57:11,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1618 places, 1685 transitions, 3380 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:11,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:57:11,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-20 11:57:11,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:57:14,715 INFO L130 PetriNetUnfolder]: 209/4013 cut-off events. [2022-11-20 11:57:14,715 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-20 11:57:14,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4130 conditions, 4013 events. 209/4013 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 29375 event pairs, 39 based on Foata normal form. 0/3232 useless extension candidates. Maximal degree in co-relation 4067. Up to 90 conditions per place. [2022-11-20 11:57:14,890 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1684 dead transitions. [2022-11-20 11:57:14,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1619 places, 1684 transitions, 3412 flow [2022-11-20 11:57:14,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:14,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:57:14,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-20 11:57:14,903 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-20 11:57:14,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-20 11:57:14,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-20 11:57:14,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:57:14,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-20 11:57:14,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:14,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:14,939 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:14,939 INFO L175 Difference]: Start difference. First operand has 1618 places, 1685 transitions, 3380 flow. Second operand 3 states and 5121 transitions. [2022-11-20 11:57:14,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1619 places, 1684 transitions, 3412 flow [2022-11-20 11:57:14,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1617 places, 1684 transitions, 3408 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:57:14,975 INFO L231 Difference]: Finished difference. Result has 1617 places, 1684 transitions, 3378 flow [2022-11-20 11:57:14,978 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3374, PETRI_DIFFERENCE_MINUEND_PLACES=1615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1682, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3378, PETRI_PLACES=1617, PETRI_TRANSITIONS=1684} [2022-11-20 11:57:14,979 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -14 predicate places. [2022-11-20 11:57:14,979 INFO L495 AbstractCegarLoop]: Abstraction has has 1617 places, 1684 transitions, 3378 flow [2022-11-20 11:57:14,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:14,981 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:57:14,982 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:14,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:57:14,982 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:57:14,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:14,983 INFO L85 PathProgramCache]: Analyzing trace with hash -993125539, now seen corresponding path program 1 times [2022-11-20 11:57:14,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:14,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15050799] [2022-11-20 11:57:14,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:14,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:15,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:15,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:15,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15050799] [2022-11-20 11:57:15,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15050799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:15,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:15,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:15,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947058433] [2022-11-20 11:57:15,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:15,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:15,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:15,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:15,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:15,063 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-20 11:57:15,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1617 places, 1684 transitions, 3378 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:15,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:57:15,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-20 11:57:15,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:57:17,349 INFO L130 PetriNetUnfolder]: 140/2622 cut-off events. [2022-11-20 11:57:17,349 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-20 11:57:17,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2724 conditions, 2622 events. 140/2622 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 16095 event pairs, 39 based on Foata normal form. 0/2140 useless extension candidates. Maximal degree in co-relation 2654. Up to 90 conditions per place. [2022-11-20 11:57:17,495 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1683 dead transitions. [2022-11-20 11:57:17,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1618 places, 1683 transitions, 3410 flow [2022-11-20 11:57:17,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:17,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:57:17,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-20 11:57:17,510 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-20 11:57:17,511 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-20 11:57:17,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-20 11:57:17,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:57:17,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-20 11:57:17,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:17,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:17,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:17,552 INFO L175 Difference]: Start difference. First operand has 1617 places, 1684 transitions, 3378 flow. Second operand 3 states and 5121 transitions. [2022-11-20 11:57:17,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1618 places, 1683 transitions, 3410 flow [2022-11-20 11:57:17,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1616 places, 1683 transitions, 3406 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:57:17,597 INFO L231 Difference]: Finished difference. Result has 1616 places, 1683 transitions, 3376 flow [2022-11-20 11:57:17,600 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3372, PETRI_DIFFERENCE_MINUEND_PLACES=1614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3376, PETRI_PLACES=1616, PETRI_TRANSITIONS=1683} [2022-11-20 11:57:17,601 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -15 predicate places. [2022-11-20 11:57:17,602 INFO L495 AbstractCegarLoop]: Abstraction has has 1616 places, 1683 transitions, 3376 flow [2022-11-20 11:57:17,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:17,605 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:57:17,605 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] [2022-11-20 11:57:17,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:57:17,606 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:57:17,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:17,607 INFO L85 PathProgramCache]: Analyzing trace with hash -154212185, now seen corresponding path program 1 times [2022-11-20 11:57:17,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:17,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077280024] [2022-11-20 11:57:17,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:17,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:17,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:17,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:17,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077280024] [2022-11-20 11:57:17,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077280024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:17,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:17,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:17,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329077713] [2022-11-20 11:57:17,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:17,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:17,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:17,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:17,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:17,695 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-20 11:57:17,704 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1616 places, 1683 transitions, 3376 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:17,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:57:17,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-20 11:57:17,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:57:19,867 INFO L130 PetriNetUnfolder]: 140/2665 cut-off events. [2022-11-20 11:57:19,867 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-20 11:57:19,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2767 conditions, 2665 events. 140/2665 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 16965 event pairs, 39 based on Foata normal form. 0/2188 useless extension candidates. Maximal degree in co-relation 2690. Up to 90 conditions per place. [2022-11-20 11:57:20,000 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1682 dead transitions. [2022-11-20 11:57:20,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1617 places, 1682 transitions, 3408 flow [2022-11-20 11:57:20,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:20,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:57:20,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-20 11:57:20,013 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-20 11:57:20,014 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-20 11:57:20,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-20 11:57:20,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:57:20,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-20 11:57:20,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:20,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:20,045 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:20,046 INFO L175 Difference]: Start difference. First operand has 1616 places, 1683 transitions, 3376 flow. Second operand 3 states and 5121 transitions. [2022-11-20 11:57:20,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1617 places, 1682 transitions, 3408 flow [2022-11-20 11:57:20,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1615 places, 1682 transitions, 3404 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:57:20,080 INFO L231 Difference]: Finished difference. Result has 1615 places, 1682 transitions, 3374 flow [2022-11-20 11:57:20,083 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3370, PETRI_DIFFERENCE_MINUEND_PLACES=1613, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3374, PETRI_PLACES=1615, PETRI_TRANSITIONS=1682} [2022-11-20 11:57:20,084 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -16 predicate places. [2022-11-20 11:57:20,084 INFO L495 AbstractCegarLoop]: Abstraction has has 1615 places, 1682 transitions, 3374 flow [2022-11-20 11:57:20,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:20,086 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:57:20,087 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] [2022-11-20 11:57:20,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:57:20,087 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:57:20,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:20,088 INFO L85 PathProgramCache]: Analyzing trace with hash -353115619, now seen corresponding path program 1 times [2022-11-20 11:57:20,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:20,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977479904] [2022-11-20 11:57:20,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:20,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:20,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:20,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:20,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977479904] [2022-11-20 11:57:20,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977479904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:20,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:20,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:20,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935676694] [2022-11-20 11:57:20,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:20,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:20,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:20,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:20,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:20,229 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1677 out of 1757 [2022-11-20 11:57:20,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1615 places, 1682 transitions, 3374 flow. Second operand has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:20,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:57:20,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1677 of 1757 [2022-11-20 11:57:20,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:57:24,773 INFO L130 PetriNetUnfolder]: 349/5993 cut-off events. [2022-11-20 11:57:24,773 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-20 11:57:24,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6210 conditions, 5993 events. 349/5993 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 49288 event pairs, 54 based on Foata normal form. 0/4732 useless extension candidates. Maximal degree in co-relation 6126. Up to 154 conditions per place. [2022-11-20 11:57:25,406 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 39 selfloop transitions, 2 changer transitions 0/1681 dead transitions. [2022-11-20 11:57:25,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1616 places, 1681 transitions, 3454 flow [2022-11-20 11:57:25,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:25,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:57:25,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5073 transitions. [2022-11-20 11:57:25,418 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9624359704040979 [2022-11-20 11:57:25,418 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5073 transitions. [2022-11-20 11:57:25,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5073 transitions. [2022-11-20 11:57:25,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:57:25,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5073 transitions. [2022-11-20 11:57:25,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1691.0) internal successors, (5073), 3 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:25,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:25,446 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:25,446 INFO L175 Difference]: Start difference. First operand has 1615 places, 1682 transitions, 3374 flow. Second operand 3 states and 5073 transitions. [2022-11-20 11:57:25,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1616 places, 1681 transitions, 3454 flow [2022-11-20 11:57:25,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1614 places, 1681 transitions, 3450 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:57:25,478 INFO L231 Difference]: Finished difference. Result has 1614 places, 1681 transitions, 3372 flow [2022-11-20 11:57:25,481 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3368, PETRI_DIFFERENCE_MINUEND_PLACES=1612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1681, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1679, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3372, PETRI_PLACES=1614, PETRI_TRANSITIONS=1681} [2022-11-20 11:57:25,482 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -17 predicate places. [2022-11-20 11:57:25,483 INFO L495 AbstractCegarLoop]: Abstraction has has 1614 places, 1681 transitions, 3372 flow [2022-11-20 11:57:25,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:25,485 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:57:25,485 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] [2022-11-20 11:57:25,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:57:25,486 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:57:25,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:25,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1165525904, now seen corresponding path program 1 times [2022-11-20 11:57:25,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:25,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109032303] [2022-11-20 11:57:25,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:25,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:25,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:25,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:25,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109032303] [2022-11-20 11:57:25,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109032303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:25,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:25,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:25,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51728006] [2022-11-20 11:57:25,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:25,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:25,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:25,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:25,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:25,599 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 1757 [2022-11-20 11:57:25,606 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1614 places, 1681 transitions, 3372 flow. Second operand has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:25,606 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:57:25,606 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 1757 [2022-11-20 11:57:25,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:57:28,061 INFO L130 PetriNetUnfolder]: 242/3331 cut-off events. [2022-11-20 11:57:28,061 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-20 11:57:28,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3666 conditions, 3331 events. 242/3331 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 23097 event pairs, 90 based on Foata normal form. 0/2666 useless extension candidates. Maximal degree in co-relation 3575. Up to 236 conditions per place. [2022-11-20 11:57:28,232 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 54 selfloop transitions, 2 changer transitions 0/1680 dead transitions. [2022-11-20 11:57:28,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1615 places, 1680 transitions, 3482 flow [2022-11-20 11:57:28,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:28,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:57:28,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5043 transitions. [2022-11-20 11:57:28,244 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567444507683551 [2022-11-20 11:57:28,244 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5043 transitions. [2022-11-20 11:57:28,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5043 transitions. [2022-11-20 11:57:28,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:57:28,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5043 transitions. [2022-11-20 11:57:28,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1681.0) internal successors, (5043), 3 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:28,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:28,281 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:28,281 INFO L175 Difference]: Start difference. First operand has 1614 places, 1681 transitions, 3372 flow. Second operand 3 states and 5043 transitions. [2022-11-20 11:57:28,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1615 places, 1680 transitions, 3482 flow [2022-11-20 11:57:28,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1613 places, 1680 transitions, 3478 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:57:28,320 INFO L231 Difference]: Finished difference. Result has 1613 places, 1680 transitions, 3370 flow [2022-11-20 11:57:28,323 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3366, PETRI_DIFFERENCE_MINUEND_PLACES=1611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1680, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3370, PETRI_PLACES=1613, PETRI_TRANSITIONS=1680} [2022-11-20 11:57:28,328 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -18 predicate places. [2022-11-20 11:57:28,328 INFO L495 AbstractCegarLoop]: Abstraction has has 1613 places, 1680 transitions, 3370 flow [2022-11-20 11:57:28,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:28,331 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:57:28,331 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:28,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:57:28,332 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:57:28,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:28,332 INFO L85 PathProgramCache]: Analyzing trace with hash 902807769, now seen corresponding path program 1 times [2022-11-20 11:57:28,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:28,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572159436] [2022-11-20 11:57:28,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:28,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:28,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:28,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:28,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572159436] [2022-11-20 11:57:28,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572159436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:28,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:28,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:28,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518789419] [2022-11-20 11:57:28,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:28,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:28,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:28,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:28,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:28,441 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1677 out of 1757 [2022-11-20 11:57:28,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1613 places, 1680 transitions, 3370 flow. Second operand has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:28,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:57:28,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1677 of 1757 [2022-11-20 11:57:28,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:57:32,734 INFO L130 PetriNetUnfolder]: 257/4235 cut-off events. [2022-11-20 11:57:32,734 INFO L131 PetriNetUnfolder]: For 30/35 co-relation queries the response was YES. [2022-11-20 11:57:32,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4425 conditions, 4235 events. 257/4235 cut-off events. For 30/35 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 31231 event pairs, 54 based on Foata normal form. 0/3359 useless extension candidates. Maximal degree in co-relation 4327. Up to 154 conditions per place. [2022-11-20 11:57:33,001 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 39 selfloop transitions, 2 changer transitions 0/1679 dead transitions. [2022-11-20 11:57:33,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1614 places, 1679 transitions, 3450 flow [2022-11-20 11:57:33,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:33,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:57:33,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5073 transitions. [2022-11-20 11:57:33,013 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9624359704040979 [2022-11-20 11:57:33,013 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5073 transitions. [2022-11-20 11:57:33,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5073 transitions. [2022-11-20 11:57:33,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:57:33,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5073 transitions. [2022-11-20 11:57:33,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1691.0) internal successors, (5073), 3 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:33,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:33,033 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:33,033 INFO L175 Difference]: Start difference. First operand has 1613 places, 1680 transitions, 3370 flow. Second operand 3 states and 5073 transitions. [2022-11-20 11:57:33,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1614 places, 1679 transitions, 3450 flow [2022-11-20 11:57:33,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1612 places, 1679 transitions, 3446 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:57:33,069 INFO L231 Difference]: Finished difference. Result has 1612 places, 1679 transitions, 3368 flow [2022-11-20 11:57:33,072 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3364, PETRI_DIFFERENCE_MINUEND_PLACES=1610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1677, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3368, PETRI_PLACES=1612, PETRI_TRANSITIONS=1679} [2022-11-20 11:57:33,073 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -19 predicate places. [2022-11-20 11:57:33,073 INFO L495 AbstractCegarLoop]: Abstraction has has 1612 places, 1679 transitions, 3368 flow [2022-11-20 11:57:33,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:33,075 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:57:33,075 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] [2022-11-20 11:57:33,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:57:33,076 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:57:33,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:33,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1204950775, now seen corresponding path program 1 times [2022-11-20 11:57:33,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:33,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920399387] [2022-11-20 11:57:33,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:33,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:33,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:33,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:33,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920399387] [2022-11-20 11:57:33,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920399387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:33,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:33,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:33,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919779813] [2022-11-20 11:57:33,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:33,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:33,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:33,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:33,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:33,137 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 1757 [2022-11-20 11:57:33,144 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1612 places, 1679 transitions, 3368 flow. Second operand has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:33,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:57:33,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 1757 [2022-11-20 11:57:33,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:57:35,867 INFO L130 PetriNetUnfolder]: 219/2890 cut-off events. [2022-11-20 11:57:35,867 INFO L131 PetriNetUnfolder]: For 49/57 co-relation queries the response was YES. [2022-11-20 11:57:35,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3180 conditions, 2890 events. 219/2890 cut-off events. For 49/57 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 20631 event pairs, 90 based on Foata normal form. 0/2324 useless extension candidates. Maximal degree in co-relation 3075. Up to 236 conditions per place. [2022-11-20 11:57:36,030 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 54 selfloop transitions, 2 changer transitions 0/1678 dead transitions. [2022-11-20 11:57:36,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1613 places, 1678 transitions, 3478 flow [2022-11-20 11:57:36,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:36,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:57:36,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5043 transitions. [2022-11-20 11:57:36,041 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567444507683551 [2022-11-20 11:57:36,041 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5043 transitions. [2022-11-20 11:57:36,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5043 transitions. [2022-11-20 11:57:36,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:57:36,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5043 transitions. [2022-11-20 11:57:36,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1681.0) internal successors, (5043), 3 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:36,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:36,061 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:36,061 INFO L175 Difference]: Start difference. First operand has 1612 places, 1679 transitions, 3368 flow. Second operand 3 states and 5043 transitions. [2022-11-20 11:57:36,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1613 places, 1678 transitions, 3478 flow [2022-11-20 11:57:36,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1611 places, 1678 transitions, 3474 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:57:36,094 INFO L231 Difference]: Finished difference. Result has 1611 places, 1678 transitions, 3366 flow [2022-11-20 11:57:36,097 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3362, PETRI_DIFFERENCE_MINUEND_PLACES=1609, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3366, PETRI_PLACES=1611, PETRI_TRANSITIONS=1678} [2022-11-20 11:57:36,098 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -20 predicate places. [2022-11-20 11:57:36,098 INFO L495 AbstractCegarLoop]: Abstraction has has 1611 places, 1678 transitions, 3366 flow [2022-11-20 11:57:36,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:36,100 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:57:36,100 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] [2022-11-20 11:57:36,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:57:36,101 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:57:36,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:36,101 INFO L85 PathProgramCache]: Analyzing trace with hash -690707289, now seen corresponding path program 1 times [2022-11-20 11:57:36,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:36,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853320103] [2022-11-20 11:57:36,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:36,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:36,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:36,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:36,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853320103] [2022-11-20 11:57:36,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853320103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:36,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:36,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:36,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931693629] [2022-11-20 11:57:36,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:36,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:36,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:36,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:36,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:36,171 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1677 out of 1757 [2022-11-20 11:57:36,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1611 places, 1678 transitions, 3366 flow. Second operand has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:36,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:57:36,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1677 of 1757 [2022-11-20 11:57:36,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:57:38,357 INFO L130 PetriNetUnfolder]: 165/2461 cut-off events. [2022-11-20 11:57:38,357 INFO L131 PetriNetUnfolder]: For 57/59 co-relation queries the response was YES. [2022-11-20 11:57:38,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 2461 events. 165/2461 cut-off events. For 57/59 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 14431 event pairs, 54 based on Foata normal form. 0/1979 useless extension candidates. Maximal degree in co-relation 2511. Up to 153 conditions per place. [2022-11-20 11:57:38,487 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 38 selfloop transitions, 2 changer transitions 0/1677 dead transitions. [2022-11-20 11:57:38,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1612 places, 1677 transitions, 3444 flow [2022-11-20 11:57:38,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:38,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:57:38,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5072 transitions. [2022-11-20 11:57:38,501 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9622462530829065 [2022-11-20 11:57:38,502 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5072 transitions. [2022-11-20 11:57:38,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5072 transitions. [2022-11-20 11:57:38,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:57:38,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5072 transitions. [2022-11-20 11:57:38,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1690.6666666666667) internal successors, (5072), 3 states have internal predecessors, (5072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:38,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:38,528 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:38,529 INFO L175 Difference]: Start difference. First operand has 1611 places, 1678 transitions, 3366 flow. Second operand 3 states and 5072 transitions. [2022-11-20 11:57:38,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1612 places, 1677 transitions, 3444 flow [2022-11-20 11:57:38,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1610 places, 1677 transitions, 3440 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:57:38,569 INFO L231 Difference]: Finished difference. Result has 1610 places, 1677 transitions, 3364 flow [2022-11-20 11:57:38,572 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3360, PETRI_DIFFERENCE_MINUEND_PLACES=1608, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1677, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1675, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3364, PETRI_PLACES=1610, PETRI_TRANSITIONS=1677} [2022-11-20 11:57:38,573 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -21 predicate places. [2022-11-20 11:57:38,573 INFO L495 AbstractCegarLoop]: Abstraction has has 1610 places, 1677 transitions, 3364 flow [2022-11-20 11:57:38,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:38,575 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:57:38,575 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] [2022-11-20 11:57:38,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:57:38,576 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:57:38,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:38,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1492992374, now seen corresponding path program 1 times [2022-11-20 11:57:38,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:38,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094489769] [2022-11-20 11:57:38,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:38,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:38,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:38,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094489769] [2022-11-20 11:57:38,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094489769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:38,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:38,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:38,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942411848] [2022-11-20 11:57:38,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:38,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:38,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:38,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:38,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:38,646 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 1757 [2022-11-20 11:57:38,653 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1610 places, 1677 transitions, 3364 flow. Second operand has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:38,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:57:38,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 1757 [2022-11-20 11:57:38,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:57:40,523 INFO L130 PetriNetUnfolder]: 196/2429 cut-off events. [2022-11-20 11:57:40,523 INFO L131 PetriNetUnfolder]: For 94/96 co-relation queries the response was YES. [2022-11-20 11:57:40,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2674 conditions, 2429 events. 196/2429 cut-off events. For 94/96 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16871 event pairs, 90 based on Foata normal form. 0/1964 useless extension candidates. Maximal degree in co-relation 2555. Up to 236 conditions per place. [2022-11-20 11:57:40,689 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 54 selfloop transitions, 2 changer transitions 0/1676 dead transitions. [2022-11-20 11:57:40,689 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1611 places, 1676 transitions, 3474 flow [2022-11-20 11:57:40,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:40,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:57:40,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5043 transitions. [2022-11-20 11:57:40,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567444507683551 [2022-11-20 11:57:40,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5043 transitions. [2022-11-20 11:57:40,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5043 transitions. [2022-11-20 11:57:40,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:57:40,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5043 transitions. [2022-11-20 11:57:40,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1681.0) internal successors, (5043), 3 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:40,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:40,728 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:40,729 INFO L175 Difference]: Start difference. First operand has 1610 places, 1677 transitions, 3364 flow. Second operand 3 states and 5043 transitions. [2022-11-20 11:57:40,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1611 places, 1676 transitions, 3474 flow [2022-11-20 11:57:40,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1609 places, 1676 transitions, 3470 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:57:40,773 INFO L231 Difference]: Finished difference. Result has 1609 places, 1676 transitions, 3362 flow [2022-11-20 11:57:40,776 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3358, PETRI_DIFFERENCE_MINUEND_PLACES=1607, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1676, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3362, PETRI_PLACES=1609, PETRI_TRANSITIONS=1676} [2022-11-20 11:57:40,777 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -22 predicate places. [2022-11-20 11:57:40,777 INFO L495 AbstractCegarLoop]: Abstraction has has 1609 places, 1676 transitions, 3362 flow [2022-11-20 11:57:40,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:40,779 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:57:40,779 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] [2022-11-20 11:57:40,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:57:40,780 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:57:40,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:40,781 INFO L85 PathProgramCache]: Analyzing trace with hash -2086153921, now seen corresponding path program 1 times [2022-11-20 11:57:40,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:40,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085481553] [2022-11-20 11:57:40,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:40,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:40,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:40,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:40,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085481553] [2022-11-20 11:57:40,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085481553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:40,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:40,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:40,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530645808] [2022-11-20 11:57:40,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:40,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:40,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:40,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:40,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:40,894 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1757 [2022-11-20 11:57:40,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1609 places, 1676 transitions, 3362 flow. Second operand has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:40,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:57:40,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1757 [2022-11-20 11:57:40,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:57:49,123 INFO L130 PetriNetUnfolder]: 661/9322 cut-off events. [2022-11-20 11:57:49,124 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-20 11:57:49,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9783 conditions, 9322 events. 661/9322 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 91913 event pairs, 192 based on Foata normal form. 0/7323 useless extension candidates. Maximal degree in co-relation 9657. Up to 428 conditions per place. [2022-11-20 11:57:49,893 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 33 selfloop transitions, 2 changer transitions 0/1675 dead transitions. [2022-11-20 11:57:49,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1610 places, 1675 transitions, 3430 flow [2022-11-20 11:57:49,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:49,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:57:49,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5085 transitions. [2022-11-20 11:57:49,902 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964712578258395 [2022-11-20 11:57:49,903 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5085 transitions. [2022-11-20 11:57:49,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5085 transitions. [2022-11-20 11:57:49,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:57:49,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5085 transitions. [2022-11-20 11:57:49,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1695.0) internal successors, (5085), 3 states have internal predecessors, (5085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:49,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:49,929 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:49,929 INFO L175 Difference]: Start difference. First operand has 1609 places, 1676 transitions, 3362 flow. Second operand 3 states and 5085 transitions. [2022-11-20 11:57:49,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1610 places, 1675 transitions, 3430 flow [2022-11-20 11:57:49,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1608 places, 1675 transitions, 3426 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:57:49,973 INFO L231 Difference]: Finished difference. Result has 1608 places, 1675 transitions, 3360 flow [2022-11-20 11:57:49,976 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3356, PETRI_DIFFERENCE_MINUEND_PLACES=1606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1673, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3360, PETRI_PLACES=1608, PETRI_TRANSITIONS=1675} [2022-11-20 11:57:49,977 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -23 predicate places. [2022-11-20 11:57:49,977 INFO L495 AbstractCegarLoop]: Abstraction has has 1608 places, 1675 transitions, 3360 flow [2022-11-20 11:57:49,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:49,979 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:57:49,979 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] [2022-11-20 11:57:49,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:57:49,980 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:57:49,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:49,981 INFO L85 PathProgramCache]: Analyzing trace with hash 463280671, now seen corresponding path program 1 times [2022-11-20 11:57:49,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:49,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420458590] [2022-11-20 11:57:49,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:49,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:50,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:50,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:50,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420458590] [2022-11-20 11:57:50,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420458590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:50,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:50,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:50,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672460617] [2022-11-20 11:57:50,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:50,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:50,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:50,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:50,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:50,072 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1757 [2022-11-20 11:57:50,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1608 places, 1675 transitions, 3360 flow. Second operand has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:50,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:57:50,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1757 [2022-11-20 11:57:50,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:58:00,732 INFO L130 PetriNetUnfolder]: 1279/15206 cut-off events. [2022-11-20 11:58:00,733 INFO L131 PetriNetUnfolder]: For 33/47 co-relation queries the response was YES. [2022-11-20 11:58:01,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16315 conditions, 15206 events. 1279/15206 cut-off events. For 33/47 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 174862 event pairs, 480 based on Foata normal form. 0/11918 useless extension candidates. Maximal degree in co-relation 16183. Up to 920 conditions per place. [2022-11-20 11:58:01,521 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 33 selfloop transitions, 2 changer transitions 0/1674 dead transitions. [2022-11-20 11:58:01,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1609 places, 1674 transitions, 3428 flow [2022-11-20 11:58:01,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:58:01,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:58:01,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5085 transitions. [2022-11-20 11:58:01,525 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964712578258395 [2022-11-20 11:58:01,526 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5085 transitions. [2022-11-20 11:58:01,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5085 transitions. [2022-11-20 11:58:01,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:58:01,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5085 transitions. [2022-11-20 11:58:01,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1695.0) internal successors, (5085), 3 states have internal predecessors, (5085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:01,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:01,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:01,544 INFO L175 Difference]: Start difference. First operand has 1608 places, 1675 transitions, 3360 flow. Second operand 3 states and 5085 transitions. [2022-11-20 11:58:01,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1609 places, 1674 transitions, 3428 flow [2022-11-20 11:58:01,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1607 places, 1674 transitions, 3424 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:58:01,566 INFO L231 Difference]: Finished difference. Result has 1607 places, 1674 transitions, 3358 flow [2022-11-20 11:58:01,569 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3354, PETRI_DIFFERENCE_MINUEND_PLACES=1605, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1672, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3358, PETRI_PLACES=1607, PETRI_TRANSITIONS=1674} [2022-11-20 11:58:01,570 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -24 predicate places. [2022-11-20 11:58:01,570 INFO L495 AbstractCegarLoop]: Abstraction has has 1607 places, 1674 transitions, 3358 flow [2022-11-20 11:58:01,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:01,571 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:58:01,572 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:58:01,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:58:01,572 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-20 11:58:01,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:01,573 INFO L85 PathProgramCache]: Analyzing trace with hash 610025969, now seen corresponding path program 1 times [2022-11-20 11:58:01,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:58:01,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947491562] [2022-11-20 11:58:01,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:01,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:58:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:01,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:58:01,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:58:01,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947491562] [2022-11-20 11:58:01,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947491562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:58:01,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:58:01,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:58:01,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935861511] [2022-11-20 11:58:01,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:58:01,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:58:01,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:58:01,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:58:01,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:58:01,636 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1757 [2022-11-20 11:58:01,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1607 places, 1674 transitions, 3358 flow. Second operand has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:01,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:58:01,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1757 [2022-11-20 11:58:01,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand