./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:07:25,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:07:25,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:07:25,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:07:25,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:07:25,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:07:25,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:07:25,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:07:25,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:07:25,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:07:25,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:07:25,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:07:25,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:07:25,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:07:25,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:07:25,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:07:25,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:07:25,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:07:25,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:07:25,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:07:25,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:07:25,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:07:25,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:07:25,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:07:25,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:07:25,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:07:25,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:07:25,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:07:25,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:07:25,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:07:25,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:07:25,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:07:25,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:07:25,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:07:25,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:07:25,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:07:25,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:07:25,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:07:25,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:07:25,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:07:25,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:07:25,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:07:25,997 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:07:25,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:07:25,998 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:07:25,998 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:07:25,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:07:26,000 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:07:26,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:07:26,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:07:26,002 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:07:26,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:07:26,003 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:07:26,004 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:07:26,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:07:26,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:07:26,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:07:26,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:07:26,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:07:26,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:07:26,005 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:07:26,005 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:07:26,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:07:26,006 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:07:26,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:07:26,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:07:26,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:07:26,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:07:26,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:07:26,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:07:26,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:07:26,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:07:26,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:07:26,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:07:26,009 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:07:26,009 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:07:26,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:07:26,009 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_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 [2022-11-16 11:07:26,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:07:26,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:07:26,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:07:26,466 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:07:26,467 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:07:26,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2022-11-16 11:07:26,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/data/732c0b84c/e10c46b2338c4b80818e5f272b27ab22/FLAGfc19131ef [2022-11-16 11:07:27,205 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:07:27,206 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2022-11-16 11:07:27,235 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/data/732c0b84c/e10c46b2338c4b80818e5f272b27ab22/FLAGfc19131ef [2022-11-16 11:07:27,422 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/data/732c0b84c/e10c46b2338c4b80818e5f272b27ab22 [2022-11-16 11:07:27,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:07:27,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:07:27,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:07:27,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:07:27,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:07:27,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:07:27" (1/1) ... [2022-11-16 11:07:27,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dad6f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:27, skipping insertion in model container [2022-11-16 11:07:27,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:07:27" (1/1) ... [2022-11-16 11:07:27,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:07:27,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:07:28,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:07:28,411 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:07:28,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:07:28,561 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:07:28,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28 WrapperNode [2022-11-16 11:07:28,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:07:28,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:07:28,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:07:28,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:07:28,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28" (1/1) ... [2022-11-16 11:07:28,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28" (1/1) ... [2022-11-16 11:07:28,632 INFO L138 Inliner]: procedures = 368, calls = 36, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 214 [2022-11-16 11:07:28,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:07:28,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:07:28,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:07:28,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:07:28,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28" (1/1) ... [2022-11-16 11:07:28,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28" (1/1) ... [2022-11-16 11:07:28,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28" (1/1) ... [2022-11-16 11:07:28,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28" (1/1) ... [2022-11-16 11:07:28,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28" (1/1) ... [2022-11-16 11:07:28,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28" (1/1) ... [2022-11-16 11:07:28,676 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28" (1/1) ... [2022-11-16 11:07:28,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28" (1/1) ... [2022-11-16 11:07:28,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:07:28,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:07:28,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:07:28,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:07:28,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28" (1/1) ... [2022-11-16 11:07:28,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:07:28,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:07:28,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:07:28,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a48a0f1-768e-401a-9559-fbfdbba167b5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:07:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:07:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:07:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:07:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:07:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:07:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:07:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:07:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:07:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:07:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:07:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:07:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:07:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:07:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:07:28,769 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:07:28,943 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:07:28,945 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:07:29,569 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:07:29,579 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:07:29,579 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:07:29,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:07:29 BoogieIcfgContainer [2022-11-16 11:07:29,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:07:29,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:07:29,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:07:29,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:07:29,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:07:27" (1/3) ... [2022-11-16 11:07:29,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5332c8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:07:29, skipping insertion in model container [2022-11-16 11:07:29,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:28" (2/3) ... [2022-11-16 11:07:29,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5332c8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:07:29, skipping insertion in model container [2022-11-16 11:07:29,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:07:29" (3/3) ... [2022-11-16 11:07:29,612 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_06-ptra_nr.i [2022-11-16 11:07:29,625 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:07:29,638 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:07:29,642 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-16 11:07:29,642 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:07:29,772 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:07:29,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 253 transitions, 511 flow [2022-11-16 11:07:29,940 INFO L130 PetriNetUnfolder]: 0/252 cut-off events. [2022-11-16 11:07:29,940 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:07:29,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 252 events. 0/252 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 93 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-16 11:07:29,944 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 253 transitions, 511 flow [2022-11-16 11:07:29,951 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 256 places, 252 transitions, 507 flow [2022-11-16 11:07:29,964 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:07:29,971 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;@71727ac0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:07:29,971 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-11-16 11:07:29,985 INFO L130 PetriNetUnfolder]: 0/48 cut-off events. [2022-11-16 11:07:29,985 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:07:29,985 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:29,986 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] [2022-11-16 11:07:29,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:29,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:29,993 INFO L85 PathProgramCache]: Analyzing trace with hash -516461519, now seen corresponding path program 1 times [2022-11-16 11:07:30,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:30,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333385574] [2022-11-16 11:07:30,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:30,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:31,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:31,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:31,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333385574] [2022-11-16 11:07:31,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333385574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:31,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:31,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:07:31,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660784311] [2022-11-16 11:07:31,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:31,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:31,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:31,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:31,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:31,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 253 [2022-11-16 11:07:31,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 252 transitions, 507 flow. Second operand has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:31,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:31,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 253 [2022-11-16 11:07:31,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:32,365 INFO L130 PetriNetUnfolder]: 360/1338 cut-off events. [2022-11-16 11:07:32,365 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:07:32,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2163 conditions, 1338 events. 360/1338 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6846 event pairs, 360 based on Foata normal form. 0/1163 useless extension candidates. Maximal degree in co-relation 1956. Up to 806 conditions per place. [2022-11-16 11:07:32,379 INFO L137 encePairwiseOnDemand]: 235/253 looper letters, 85 selfloop transitions, 15 changer transitions 0/249 dead transitions. [2022-11-16 11:07:32,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 249 transitions, 701 flow [2022-11-16 11:07:32,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:32,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:07:32,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1003 transitions. [2022-11-16 11:07:32,407 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.660737812911726 [2022-11-16 11:07:32,409 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1003 transitions. [2022-11-16 11:07:32,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1003 transitions. [2022-11-16 11:07:32,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:32,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1003 transitions. [2022-11-16 11:07:32,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 167.16666666666666) internal successors, (1003), 6 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:32,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:32,436 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:32,438 INFO L175 Difference]: Start difference. First operand has 256 places, 252 transitions, 507 flow. Second operand 6 states and 1003 transitions. [2022-11-16 11:07:32,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 249 transitions, 701 flow [2022-11-16 11:07:32,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 249 transitions, 700 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:07:32,452 INFO L231 Difference]: Finished difference. Result has 257 places, 249 transitions, 530 flow [2022-11-16 11:07:32,454 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=530, PETRI_PLACES=257, PETRI_TRANSITIONS=249} [2022-11-16 11:07:32,458 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, 1 predicate places. [2022-11-16 11:07:32,459 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 249 transitions, 530 flow [2022-11-16 11:07:32,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:32,461 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:32,461 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] [2022-11-16 11:07:32,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:07:32,462 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:32,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:32,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1428599810, now seen corresponding path program 1 times [2022-11-16 11:07:32,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:32,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095564378] [2022-11-16 11:07:32,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:32,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:33,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:33,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:33,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095564378] [2022-11-16 11:07:33,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095564378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:33,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:33,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:07:33,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410695270] [2022-11-16 11:07:33,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:33,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:33,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:33,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:33,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:33,133 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 253 [2022-11-16 11:07:33,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 249 transitions, 530 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:33,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:33,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 253 [2022-11-16 11:07:33,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:33,749 INFO L130 PetriNetUnfolder]: 360/1335 cut-off events. [2022-11-16 11:07:33,750 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:07:33,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2172 conditions, 1335 events. 360/1335 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6856 event pairs, 360 based on Foata normal form. 0/1163 useless extension candidates. Maximal degree in co-relation 1980. Up to 803 conditions per place. [2022-11-16 11:07:33,759 INFO L137 encePairwiseOnDemand]: 235/253 looper letters, 82 selfloop transitions, 15 changer transitions 0/246 dead transitions. [2022-11-16 11:07:33,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 246 transitions, 718 flow [2022-11-16 11:07:33,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:33,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:07:33,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1000 transitions. [2022-11-16 11:07:33,762 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6587615283267457 [2022-11-16 11:07:33,762 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1000 transitions. [2022-11-16 11:07:33,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1000 transitions. [2022-11-16 11:07:33,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:33,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1000 transitions. [2022-11-16 11:07:33,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 166.66666666666666) internal successors, (1000), 6 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:33,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:33,771 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:33,771 INFO L175 Difference]: Start difference. First operand has 257 places, 249 transitions, 530 flow. Second operand 6 states and 1000 transitions. [2022-11-16 11:07:33,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 246 transitions, 718 flow [2022-11-16 11:07:33,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 246 transitions, 688 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:07:33,782 INFO L231 Difference]: Finished difference. Result has 254 places, 246 transitions, 524 flow [2022-11-16 11:07:33,783 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=524, PETRI_PLACES=254, PETRI_TRANSITIONS=246} [2022-11-16 11:07:33,783 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, -2 predicate places. [2022-11-16 11:07:33,784 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 246 transitions, 524 flow [2022-11-16 11:07:33,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:33,785 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:33,785 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] [2022-11-16 11:07:33,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:07:33,785 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:33,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:33,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1610562284, now seen corresponding path program 1 times [2022-11-16 11:07:33,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:33,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516424093] [2022-11-16 11:07:33,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:33,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:33,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:33,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:33,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516424093] [2022-11-16 11:07:33,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516424093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:33,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:33,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:07:33,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306502612] [2022-11-16 11:07:33,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:33,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:07:33,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:33,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:07:33,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:07:33,868 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 253 [2022-11-16 11:07:33,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 246 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:33,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:33,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 253 [2022-11-16 11:07:33,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:33,977 INFO L130 PetriNetUnfolder]: 18/396 cut-off events. [2022-11-16 11:07:33,978 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:07:33,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 396 events. 18/396 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 817 event pairs, 18 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 309. Up to 56 conditions per place. [2022-11-16 11:07:33,980 INFO L137 encePairwiseOnDemand]: 250/253 looper letters, 19 selfloop transitions, 2 changer transitions 0/245 dead transitions. [2022-11-16 11:07:33,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 245 transitions, 564 flow [2022-11-16 11:07:33,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:07:33,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:07:33,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 715 transitions. [2022-11-16 11:07:33,984 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9420289855072463 [2022-11-16 11:07:33,985 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 715 transitions. [2022-11-16 11:07:33,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 715 transitions. [2022-11-16 11:07:33,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:33,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 715 transitions. [2022-11-16 11:07:33,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.33333333333334) internal successors, (715), 3 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:33,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:33,993 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:33,994 INFO L175 Difference]: Start difference. First operand has 254 places, 246 transitions, 524 flow. Second operand 3 states and 715 transitions. [2022-11-16 11:07:33,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 245 transitions, 564 flow [2022-11-16 11:07:33,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 245 transitions, 534 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:07:34,001 INFO L231 Difference]: Finished difference. Result has 250 places, 245 transitions, 496 flow [2022-11-16 11:07:34,002 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=250, PETRI_TRANSITIONS=245} [2022-11-16 11:07:34,004 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, -6 predicate places. [2022-11-16 11:07:34,005 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 245 transitions, 496 flow [2022-11-16 11:07:34,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:34,006 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:34,006 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] [2022-11-16 11:07:34,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:07:34,007 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:34,008 INFO L85 PathProgramCache]: Analyzing trace with hash -2022060933, now seen corresponding path program 1 times [2022-11-16 11:07:34,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:34,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069753357] [2022-11-16 11:07:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:34,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:34,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:34,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:34,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069753357] [2022-11-16 11:07:34,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069753357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:34,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:34,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:07:34,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920254862] [2022-11-16 11:07:34,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:34,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:07:34,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:34,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:07:34,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:07:34,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 253 [2022-11-16 11:07:34,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 245 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:34,104 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:34,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 253 [2022-11-16 11:07:34,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:34,188 INFO L130 PetriNetUnfolder]: 8/341 cut-off events. [2022-11-16 11:07:34,188 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:07:34,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 341 events. 8/341 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 503 event pairs, 8 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 304. Up to 27 conditions per place. [2022-11-16 11:07:34,190 INFO L137 encePairwiseOnDemand]: 247/253 looper letters, 12 selfloop transitions, 1 changer transitions 0/240 dead transitions. [2022-11-16 11:07:34,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 240 transitions, 512 flow [2022-11-16 11:07:34,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:07:34,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:07:34,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 720 transitions. [2022-11-16 11:07:34,193 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9486166007905138 [2022-11-16 11:07:34,193 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 720 transitions. [2022-11-16 11:07:34,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 720 transitions. [2022-11-16 11:07:34,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:34,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 720 transitions. [2022-11-16 11:07:34,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:34,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:34,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:34,204 INFO L175 Difference]: Start difference. First operand has 250 places, 245 transitions, 496 flow. Second operand 3 states and 720 transitions. [2022-11-16 11:07:34,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 240 transitions, 512 flow [2022-11-16 11:07:34,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 240 transitions, 508 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:07:34,209 INFO L231 Difference]: Finished difference. Result has 245 places, 240 transitions, 484 flow [2022-11-16 11:07:34,210 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=484, PETRI_PLACES=245, PETRI_TRANSITIONS=240} [2022-11-16 11:07:34,212 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, -11 predicate places. [2022-11-16 11:07:34,213 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 240 transitions, 484 flow [2022-11-16 11:07:34,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:34,215 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:34,215 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:34,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:07:34,216 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:34,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:34,217 INFO L85 PathProgramCache]: Analyzing trace with hash -613351204, now seen corresponding path program 1 times [2022-11-16 11:07:34,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:34,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857232823] [2022-11-16 11:07:34,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:34,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:34,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:34,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857232823] [2022-11-16 11:07:34,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857232823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:34,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:34,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:07:34,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808138138] [2022-11-16 11:07:34,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:34,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:34,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:34,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:34,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:34,843 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 253 [2022-11-16 11:07:34,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 240 transitions, 484 flow. Second operand has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:34,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:34,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 253 [2022-11-16 11:07:34,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:35,346 INFO L130 PetriNetUnfolder]: 416/1415 cut-off events. [2022-11-16 11:07:35,347 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:07:35,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2341 conditions, 1415 events. 416/1415 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7107 event pairs, 416 based on Foata normal form. 0/1264 useless extension candidates. Maximal degree in co-relation 2257. Up to 916 conditions per place. [2022-11-16 11:07:35,355 INFO L137 encePairwiseOnDemand]: 247/253 looper letters, 83 selfloop transitions, 5 changer transitions 0/239 dead transitions. [2022-11-16 11:07:35,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 239 transitions, 658 flow [2022-11-16 11:07:35,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:35,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:07:35,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1037 transitions. [2022-11-16 11:07:35,360 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6831357048748353 [2022-11-16 11:07:35,360 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1037 transitions. [2022-11-16 11:07:35,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1037 transitions. [2022-11-16 11:07:35,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:35,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1037 transitions. [2022-11-16 11:07:35,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 172.83333333333334) internal successors, (1037), 6 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,369 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,369 INFO L175 Difference]: Start difference. First operand has 245 places, 240 transitions, 484 flow. Second operand 6 states and 1037 transitions. [2022-11-16 11:07:35,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 239 transitions, 658 flow [2022-11-16 11:07:35,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 239 transitions, 657 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:07:35,375 INFO L231 Difference]: Finished difference. Result has 248 places, 239 transitions, 491 flow [2022-11-16 11:07:35,376 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=491, PETRI_PLACES=248, PETRI_TRANSITIONS=239} [2022-11-16 11:07:35,377 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, -8 predicate places. [2022-11-16 11:07:35,377 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 239 transitions, 491 flow [2022-11-16 11:07:35,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,378 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:35,379 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] [2022-11-16 11:07:35,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:07:35,379 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:35,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:35,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1810113207, now seen corresponding path program 1 times [2022-11-16 11:07:35,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:35,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726846725] [2022-11-16 11:07:35,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:35,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:35,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:35,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726846725] [2022-11-16 11:07:35,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726846725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:35,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:35,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:07:35,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013429876] [2022-11-16 11:07:35,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:35,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:07:35,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:35,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:07:35,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:07:35,469 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 253 [2022-11-16 11:07:35,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 239 transitions, 491 flow. Second operand has 3 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:35,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 253 [2022-11-16 11:07:35,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:35,513 INFO L130 PetriNetUnfolder]: 0/238 cut-off events. [2022-11-16 11:07:35,514 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:07:35,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 238 events. 0/238 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 81 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-11-16 11:07:35,515 INFO L137 encePairwiseOnDemand]: 250/253 looper letters, 7 selfloop transitions, 2 changer transitions 0/238 dead transitions. [2022-11-16 11:07:35,515 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 238 transitions, 507 flow [2022-11-16 11:07:35,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:07:35,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:07:35,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2022-11-16 11:07:35,518 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9736495388669302 [2022-11-16 11:07:35,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 739 transitions. [2022-11-16 11:07:35,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 739 transitions. [2022-11-16 11:07:35,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:35,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 739 transitions. [2022-11-16 11:07:35,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,523 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,523 INFO L175 Difference]: Start difference. First operand has 248 places, 239 transitions, 491 flow. Second operand 3 states and 739 transitions. [2022-11-16 11:07:35,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 238 transitions, 507 flow [2022-11-16 11:07:35,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 238 transitions, 497 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:07:35,528 INFO L231 Difference]: Finished difference. Result has 244 places, 238 transitions, 483 flow [2022-11-16 11:07:35,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=483, PETRI_PLACES=244, PETRI_TRANSITIONS=238} [2022-11-16 11:07:35,530 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, -12 predicate places. [2022-11-16 11:07:35,530 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 238 transitions, 483 flow [2022-11-16 11:07:35,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,531 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:35,531 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:35,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:07:35,532 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:35,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:35,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1037635221, now seen corresponding path program 1 times [2022-11-16 11:07:35,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:35,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2972041] [2022-11-16 11:07:35,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:35,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:35,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:35,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:35,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2972041] [2022-11-16 11:07:35,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2972041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:35,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:35,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:07:35,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789226932] [2022-11-16 11:07:35,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:35,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:07:35,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:35,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:07:35,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:07:35,620 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 253 [2022-11-16 11:07:35,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 238 transitions, 483 flow. Second operand has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:35,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 253 [2022-11-16 11:07:35,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:35,664 INFO L130 PetriNetUnfolder]: 0/237 cut-off events. [2022-11-16 11:07:35,664 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:07:35,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 237 events. 0/237 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 81 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-11-16 11:07:35,666 INFO L137 encePairwiseOnDemand]: 251/253 looper letters, 4 selfloop transitions, 1 changer transitions 0/237 dead transitions. [2022-11-16 11:07:35,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 237 transitions, 491 flow [2022-11-16 11:07:35,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:07:35,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:07:35,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 744 transitions. [2022-11-16 11:07:35,669 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9802371541501976 [2022-11-16 11:07:35,669 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 744 transitions. [2022-11-16 11:07:35,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 744 transitions. [2022-11-16 11:07:35,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:35,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 744 transitions. [2022-11-16 11:07:35,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,675 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 253.0) internal successors, (1012), 4 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,675 INFO L175 Difference]: Start difference. First operand has 244 places, 238 transitions, 483 flow. Second operand 3 states and 744 transitions. [2022-11-16 11:07:35,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 237 transitions, 491 flow [2022-11-16 11:07:35,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 237 transitions, 487 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:07:35,681 INFO L231 Difference]: Finished difference. Result has 243 places, 237 transitions, 479 flow [2022-11-16 11:07:35,682 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=479, PETRI_PLACES=243, PETRI_TRANSITIONS=237} [2022-11-16 11:07:35,683 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, -13 predicate places. [2022-11-16 11:07:35,683 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 237 transitions, 479 flow [2022-11-16 11:07:35,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:35,684 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:35,684 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:35,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:07:35,684 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:35,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:35,685 INFO L85 PathProgramCache]: Analyzing trace with hash 857326273, now seen corresponding path program 1 times [2022-11-16 11:07:35,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:35,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465857148] [2022-11-16 11:07:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:35,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:36,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:36,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:36,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465857148] [2022-11-16 11:07:36,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465857148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:36,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:36,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:07:36,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791337442] [2022-11-16 11:07:36,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:36,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:36,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:36,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:36,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:36,536 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 253 [2022-11-16 11:07:36,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 237 transitions, 479 flow. Second operand has 6 states, 6 states have (on average 168.66666666666666) internal successors, (1012), 6 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:36,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:36,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 253 [2022-11-16 11:07:36,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:37,665 INFO L130 PetriNetUnfolder]: 748/2420 cut-off events. [2022-11-16 11:07:37,665 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:07:37,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4059 conditions, 2420 events. 748/2420 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 15007 event pairs, 64 based on Foata normal form. 0/2166 useless extension candidates. Maximal degree in co-relation 3976. Up to 791 conditions per place. [2022-11-16 11:07:37,678 INFO L137 encePairwiseOnDemand]: 225/253 looper letters, 171 selfloop transitions, 70 changer transitions 0/393 dead transitions. [2022-11-16 11:07:37,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 393 transitions, 1273 flow [2022-11-16 11:07:37,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:37,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:07:37,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1209 transitions. [2022-11-16 11:07:37,682 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7964426877470355 [2022-11-16 11:07:37,682 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1209 transitions. [2022-11-16 11:07:37,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1209 transitions. [2022-11-16 11:07:37,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:37,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1209 transitions. [2022-11-16 11:07:37,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.5) internal successors, (1209), 6 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:37,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:37,691 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:37,691 INFO L175 Difference]: Start difference. First operand has 243 places, 237 transitions, 479 flow. Second operand 6 states and 1209 transitions. [2022-11-16 11:07:37,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 393 transitions, 1273 flow [2022-11-16 11:07:37,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 393 transitions, 1272 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:07:37,703 INFO L231 Difference]: Finished difference. Result has 251 places, 307 transitions, 956 flow [2022-11-16 11:07:37,704 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=956, PETRI_PLACES=251, PETRI_TRANSITIONS=307} [2022-11-16 11:07:37,708 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, -5 predicate places. [2022-11-16 11:07:37,708 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 307 transitions, 956 flow [2022-11-16 11:07:37,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.66666666666666) internal successors, (1012), 6 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:37,709 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:37,709 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:37,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:07:37,710 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:37,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:37,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1589605620, now seen corresponding path program 1 times [2022-11-16 11:07:37,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:37,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730214379] [2022-11-16 11:07:37,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:37,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:38,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:38,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730214379] [2022-11-16 11:07:38,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730214379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:38,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:38,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:07:38,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876159066] [2022-11-16 11:07:38,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:38,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:38,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:38,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:38,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:38,629 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 253 [2022-11-16 11:07:38,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 307 transitions, 956 flow. Second operand has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:38,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:38,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 253 [2022-11-16 11:07:38,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:39,790 INFO L130 PetriNetUnfolder]: 836/2746 cut-off events. [2022-11-16 11:07:39,790 INFO L131 PetriNetUnfolder]: For 879/879 co-relation queries the response was YES. [2022-11-16 11:07:39,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5990 conditions, 2746 events. 836/2746 cut-off events. For 879/879 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17643 event pairs, 379 based on Foata normal form. 0/2561 useless extension candidates. Maximal degree in co-relation 5905. Up to 1700 conditions per place. [2022-11-16 11:07:39,809 INFO L137 encePairwiseOnDemand]: 238/253 looper letters, 166 selfloop transitions, 48 changer transitions 0/367 dead transitions. [2022-11-16 11:07:39,809 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 367 transitions, 1600 flow [2022-11-16 11:07:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:39,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:07:39,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1109 transitions. [2022-11-16 11:07:39,814 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.730566534914361 [2022-11-16 11:07:39,814 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1109 transitions. [2022-11-16 11:07:39,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1109 transitions. [2022-11-16 11:07:39,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:39,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1109 transitions. [2022-11-16 11:07:39,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.83333333333334) internal successors, (1109), 6 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:39,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:39,823 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:39,823 INFO L175 Difference]: Start difference. First operand has 251 places, 307 transitions, 956 flow. Second operand 6 states and 1109 transitions. [2022-11-16 11:07:39,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 367 transitions, 1600 flow [2022-11-16 11:07:39,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 367 transitions, 1600 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:07:39,843 INFO L231 Difference]: Finished difference. Result has 261 places, 350 transitions, 1344 flow [2022-11-16 11:07:39,844 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1344, PETRI_PLACES=261, PETRI_TRANSITIONS=350} [2022-11-16 11:07:39,845 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, 5 predicate places. [2022-11-16 11:07:39,845 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 350 transitions, 1344 flow [2022-11-16 11:07:39,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:39,847 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:39,847 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:39,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:07:39,848 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:39,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:39,848 INFO L85 PathProgramCache]: Analyzing trace with hash 608885980, now seen corresponding path program 1 times [2022-11-16 11:07:39,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:39,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596462039] [2022-11-16 11:07:39,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:39,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:40,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:40,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:40,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596462039] [2022-11-16 11:07:40,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596462039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:40,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:40,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:07:40,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715340040] [2022-11-16 11:07:40,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:40,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:40,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:40,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:40,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:40,612 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 253 [2022-11-16 11:07:40,615 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 350 transitions, 1344 flow. Second operand has 6 states, 6 states have (on average 170.66666666666666) internal successors, (1024), 6 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:40,615 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:40,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 253 [2022-11-16 11:07:40,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:42,119 INFO L130 PetriNetUnfolder]: 985/3394 cut-off events. [2022-11-16 11:07:42,120 INFO L131 PetriNetUnfolder]: For 1982/2096 co-relation queries the response was YES. [2022-11-16 11:07:42,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8257 conditions, 3394 events. 985/3394 cut-off events. For 1982/2096 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 23909 event pairs, 173 based on Foata normal form. 0/3252 useless extension candidates. Maximal degree in co-relation 8164. Up to 1579 conditions per place. [2022-11-16 11:07:42,148 INFO L137 encePairwiseOnDemand]: 231/253 looper letters, 272 selfloop transitions, 135 changer transitions 4/565 dead transitions. [2022-11-16 11:07:42,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 565 transitions, 3258 flow [2022-11-16 11:07:42,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:42,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:07:42,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1176 transitions. [2022-11-16 11:07:42,157 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7747035573122529 [2022-11-16 11:07:42,157 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1176 transitions. [2022-11-16 11:07:42,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1176 transitions. [2022-11-16 11:07:42,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:42,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1176 transitions. [2022-11-16 11:07:42,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:42,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:42,166 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:42,167 INFO L175 Difference]: Start difference. First operand has 261 places, 350 transitions, 1344 flow. Second operand 6 states and 1176 transitions. [2022-11-16 11:07:42,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 565 transitions, 3258 flow [2022-11-16 11:07:42,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 565 transitions, 3240 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 11:07:42,190 INFO L231 Difference]: Finished difference. Result has 271 places, 480 transitions, 2684 flow [2022-11-16 11:07:42,191 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=1326, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2684, PETRI_PLACES=271, PETRI_TRANSITIONS=480} [2022-11-16 11:07:42,192 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, 15 predicate places. [2022-11-16 11:07:42,192 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 480 transitions, 2684 flow [2022-11-16 11:07:42,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.66666666666666) internal successors, (1024), 6 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:42,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:42,194 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:42,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:07:42,194 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:42,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:42,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1956024071, now seen corresponding path program 1 times [2022-11-16 11:07:42,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:42,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083366781] [2022-11-16 11:07:42,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:42,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:42,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:42,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:42,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083366781] [2022-11-16 11:07:42,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083366781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:42,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:42,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:07:42,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460689349] [2022-11-16 11:07:42,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:42,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:07:42,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:42,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:07:42,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:07:42,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 253 [2022-11-16 11:07:42,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 480 transitions, 2684 flow. Second operand has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:42,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:42,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 253 [2022-11-16 11:07:42,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:44,050 INFO L130 PetriNetUnfolder]: 1055/3536 cut-off events. [2022-11-16 11:07:44,050 INFO L131 PetriNetUnfolder]: For 3964/4036 co-relation queries the response was YES. [2022-11-16 11:07:44,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10401 conditions, 3536 events. 1055/3536 cut-off events. For 3964/4036 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 25074 event pairs, 258 based on Foata normal form. 0/3443 useless extension candidates. Maximal degree in co-relation 10306. Up to 2152 conditions per place. [2022-11-16 11:07:44,089 INFO L137 encePairwiseOnDemand]: 238/253 looper letters, 331 selfloop transitions, 62 changer transitions 0/547 dead transitions. [2022-11-16 11:07:44,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 547 transitions, 3884 flow [2022-11-16 11:07:44,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:07:44,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:07:44,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1109 transitions. [2022-11-16 11:07:44,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.730566534914361 [2022-11-16 11:07:44,094 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1109 transitions. [2022-11-16 11:07:44,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1109 transitions. [2022-11-16 11:07:44,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:44,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1109 transitions. [2022-11-16 11:07:44,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.83333333333334) internal successors, (1109), 6 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:44,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:44,163 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:44,163 INFO L175 Difference]: Start difference. First operand has 271 places, 480 transitions, 2684 flow. Second operand 6 states and 1109 transitions. [2022-11-16 11:07:44,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 547 transitions, 3884 flow [2022-11-16 11:07:44,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 547 transitions, 3848 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-11-16 11:07:44,206 INFO L231 Difference]: Finished difference. Result has 281 places, 529 transitions, 3274 flow [2022-11-16 11:07:44,207 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=2648, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3274, PETRI_PLACES=281, PETRI_TRANSITIONS=529} [2022-11-16 11:07:44,208 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, 25 predicate places. [2022-11-16 11:07:44,208 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 529 transitions, 3274 flow [2022-11-16 11:07:44,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:44,209 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:44,209 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:44,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:07:44,210 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:44,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:44,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1924072482, now seen corresponding path program 1 times [2022-11-16 11:07:44,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:44,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329882037] [2022-11-16 11:07:44,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:44,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:45,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:45,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:45,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329882037] [2022-11-16 11:07:45,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329882037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:45,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:45,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:07:45,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013641476] [2022-11-16 11:07:45,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:45,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:07:45,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:45,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:07:45,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:07:45,707 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 253 [2022-11-16 11:07:45,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 529 transitions, 3274 flow. Second operand has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:45,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:45,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 253 [2022-11-16 11:07:45,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:50,062 INFO L130 PetriNetUnfolder]: 1963/6520 cut-off events. [2022-11-16 11:07:50,063 INFO L131 PetriNetUnfolder]: For 10189/10316 co-relation queries the response was YES. [2022-11-16 11:07:50,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20484 conditions, 6520 events. 1963/6520 cut-off events. For 10189/10316 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 55397 event pairs, 251 based on Foata normal form. 46/6455 useless extension candidates. Maximal degree in co-relation 20374. Up to 1308 conditions per place. [2022-11-16 11:07:50,133 INFO L137 encePairwiseOnDemand]: 216/253 looper letters, 807 selfloop transitions, 253 changer transitions 6/1201 dead transitions. [2022-11-16 11:07:50,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 1201 transitions, 10392 flow [2022-11-16 11:07:50,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 11:07:50,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-16 11:07:50,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4485 transitions. [2022-11-16 11:07:50,146 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6331168831168831 [2022-11-16 11:07:50,146 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4485 transitions. [2022-11-16 11:07:50,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4485 transitions. [2022-11-16 11:07:50,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:50,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4485 transitions. [2022-11-16 11:07:50,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 160.17857142857142) internal successors, (4485), 28 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:50,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 253.0) internal successors, (7337), 29 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:50,178 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 253.0) internal successors, (7337), 29 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:50,179 INFO L175 Difference]: Start difference. First operand has 281 places, 529 transitions, 3274 flow. Second operand 28 states and 4485 transitions. [2022-11-16 11:07:50,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 1201 transitions, 10392 flow [2022-11-16 11:07:50,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 1201 transitions, 10168 flow, removed 112 selfloop flow, removed 0 redundant places. [2022-11-16 11:07:50,277 INFO L231 Difference]: Finished difference. Result has 320 places, 694 transitions, 5657 flow [2022-11-16 11:07:50,278 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=3162, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=5657, PETRI_PLACES=320, PETRI_TRANSITIONS=694} [2022-11-16 11:07:50,279 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, 64 predicate places. [2022-11-16 11:07:50,279 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 694 transitions, 5657 flow [2022-11-16 11:07:50,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:50,281 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:50,281 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:50,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:07:50,282 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:50,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:50,282 INFO L85 PathProgramCache]: Analyzing trace with hash -735175687, now seen corresponding path program 1 times [2022-11-16 11:07:50,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:50,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129039745] [2022-11-16 11:07:50,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:50,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:51,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:51,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:51,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129039745] [2022-11-16 11:07:51,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129039745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:51,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:51,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:07:51,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348876467] [2022-11-16 11:07:51,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:51,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:07:51,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:51,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:07:51,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:07:51,446 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 253 [2022-11-16 11:07:51,447 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 694 transitions, 5657 flow. Second operand has 13 states, 13 states have (on average 144.92307692307693) internal successors, (1884), 13 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:51,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:51,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 253 [2022-11-16 11:07:51,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:07:54,875 INFO L130 PetriNetUnfolder]: 2019/6565 cut-off events. [2022-11-16 11:07:54,875 INFO L131 PetriNetUnfolder]: For 15671/15844 co-relation queries the response was YES. [2022-11-16 11:07:54,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23049 conditions, 6565 events. 2019/6565 cut-off events. For 15671/15844 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 55314 event pairs, 384 based on Foata normal form. 40/6468 useless extension candidates. Maximal degree in co-relation 22923. Up to 3255 conditions per place. [2022-11-16 11:07:54,951 INFO L137 encePairwiseOnDemand]: 233/253 looper letters, 672 selfloop transitions, 126 changer transitions 2/932 dead transitions. [2022-11-16 11:07:54,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 932 transitions, 9181 flow [2022-11-16 11:07:54,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:07:54,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-16 11:07:54,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3673 transitions. [2022-11-16 11:07:54,976 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6049077733860343 [2022-11-16 11:07:54,976 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3673 transitions. [2022-11-16 11:07:54,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3673 transitions. [2022-11-16 11:07:54,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:07:54,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3673 transitions. [2022-11-16 11:07:54,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 153.04166666666666) internal successors, (3673), 24 states have internal predecessors, (3673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:55,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 253.0) internal successors, (6325), 25 states have internal predecessors, (6325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:55,019 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 253.0) internal successors, (6325), 25 states have internal predecessors, (6325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:55,019 INFO L175 Difference]: Start difference. First operand has 320 places, 694 transitions, 5657 flow. Second operand 24 states and 3673 transitions. [2022-11-16 11:07:55,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 932 transitions, 9181 flow [2022-11-16 11:07:55,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 932 transitions, 9159 flow, removed 9 selfloop flow, removed 2 redundant places. [2022-11-16 11:07:55,189 INFO L231 Difference]: Finished difference. Result has 347 places, 727 transitions, 6302 flow [2022-11-16 11:07:55,191 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=5635, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=6302, PETRI_PLACES=347, PETRI_TRANSITIONS=727} [2022-11-16 11:07:55,192 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, 91 predicate places. [2022-11-16 11:07:55,192 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 727 transitions, 6302 flow [2022-11-16 11:07:55,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 144.92307692307693) internal successors, (1884), 13 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:55,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:07:55,194 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:07:55,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:07:55,194 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:07:55,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:55,195 INFO L85 PathProgramCache]: Analyzing trace with hash 395328036, now seen corresponding path program 2 times [2022-11-16 11:07:55,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:55,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709428747] [2022-11-16 11:07:55,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:55,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:57,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:07:57,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:57,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709428747] [2022-11-16 11:07:57,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709428747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:57,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:57,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:07:57,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947094021] [2022-11-16 11:07:57,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:57,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:07:57,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:57,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:07:57,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:07:57,012 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 253 [2022-11-16 11:07:57,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 727 transitions, 6302 flow. Second operand has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:07:57,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:07:57,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 253 [2022-11-16 11:07:57,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:01,983 INFO L130 PetriNetUnfolder]: 2828/9471 cut-off events. [2022-11-16 11:08:01,983 INFO L131 PetriNetUnfolder]: For 29307/29605 co-relation queries the response was YES. [2022-11-16 11:08:02,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34973 conditions, 9471 events. 2828/9471 cut-off events. For 29307/29605 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 90475 event pairs, 464 based on Foata normal form. 97/9432 useless extension candidates. Maximal degree in co-relation 34839. Up to 2035 conditions per place. [2022-11-16 11:08:02,078 INFO L137 encePairwiseOnDemand]: 216/253 looper letters, 807 selfloop transitions, 364 changer transitions 7/1316 dead transitions. [2022-11-16 11:08:02,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 1316 transitions, 13825 flow [2022-11-16 11:08:02,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 11:08:02,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 11:08:02,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4772 transitions. [2022-11-16 11:08:02,087 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6287220026350461 [2022-11-16 11:08:02,088 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 4772 transitions. [2022-11-16 11:08:02,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 4772 transitions. [2022-11-16 11:08:02,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:02,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 4772 transitions. [2022-11-16 11:08:02,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 159.06666666666666) internal successors, (4772), 30 states have internal predecessors, (4772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:02,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 253.0) internal successors, (7843), 31 states have internal predecessors, (7843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:02,297 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 253.0) internal successors, (7843), 31 states have internal predecessors, (7843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:02,297 INFO L175 Difference]: Start difference. First operand has 347 places, 727 transitions, 6302 flow. Second operand 30 states and 4772 transitions. [2022-11-16 11:08:02,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 1316 transitions, 13825 flow [2022-11-16 11:08:02,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 1316 transitions, 13746 flow, removed 18 selfloop flow, removed 9 redundant places. [2022-11-16 11:08:02,656 INFO L231 Difference]: Finished difference. Result has 384 places, 862 transitions, 9538 flow [2022-11-16 11:08:02,657 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=6257, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=9538, PETRI_PLACES=384, PETRI_TRANSITIONS=862} [2022-11-16 11:08:02,658 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, 128 predicate places. [2022-11-16 11:08:02,659 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 862 transitions, 9538 flow [2022-11-16 11:08:02,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:02,660 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:02,660 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:02,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:08:02,661 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:08:02,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:02,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1094751238, now seen corresponding path program 3 times [2022-11-16 11:08:02,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:02,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863427463] [2022-11-16 11:08:02,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:02,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:04,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:04,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:04,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863427463] [2022-11-16 11:08:04,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863427463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:04,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:04,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:08:04,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451186894] [2022-11-16 11:08:04,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:04,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:08:04,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:04,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:08:04,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:08:04,808 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 253 [2022-11-16 11:08:04,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 862 transitions, 9538 flow. Second operand has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:04,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:04,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 253 [2022-11-16 11:08:04,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:12,214 INFO L130 PetriNetUnfolder]: 4047/13737 cut-off events. [2022-11-16 11:08:12,214 INFO L131 PetriNetUnfolder]: For 54826/55362 co-relation queries the response was YES. [2022-11-16 11:08:12,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54099 conditions, 13737 events. 4047/13737 cut-off events. For 54826/55362 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 145681 event pairs, 680 based on Foata normal form. 170/13716 useless extension candidates. Maximal degree in co-relation 53951. Up to 3017 conditions per place. [2022-11-16 11:08:12,398 INFO L137 encePairwiseOnDemand]: 216/253 looper letters, 820 selfloop transitions, 478 changer transitions 6/1442 dead transitions. [2022-11-16 11:08:12,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 1442 transitions, 17864 flow [2022-11-16 11:08:12,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:08:12,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:08:12,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3300 transitions. [2022-11-16 11:08:12,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6521739130434783 [2022-11-16 11:08:12,406 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3300 transitions. [2022-11-16 11:08:12,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3300 transitions. [2022-11-16 11:08:12,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:12,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3300 transitions. [2022-11-16 11:08:12,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 165.0) internal successors, (3300), 20 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:12,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 253.0) internal successors, (5313), 21 states have internal predecessors, (5313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:12,427 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 253.0) internal successors, (5313), 21 states have internal predecessors, (5313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:12,427 INFO L175 Difference]: Start difference. First operand has 384 places, 862 transitions, 9538 flow. Second operand 20 states and 3300 transitions. [2022-11-16 11:08:12,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 1442 transitions, 17864 flow [2022-11-16 11:08:13,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 1442 transitions, 17728 flow, removed 42 selfloop flow, removed 10 redundant places. [2022-11-16 11:08:13,265 INFO L231 Difference]: Finished difference. Result has 409 places, 1012 transitions, 13825 flow [2022-11-16 11:08:13,266 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=9436, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=862, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=13825, PETRI_PLACES=409, PETRI_TRANSITIONS=1012} [2022-11-16 11:08:13,267 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, 153 predicate places. [2022-11-16 11:08:13,267 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 1012 transitions, 13825 flow [2022-11-16 11:08:13,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:13,268 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:13,268 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:13,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:08:13,269 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:08:13,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:13,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1415034558, now seen corresponding path program 4 times [2022-11-16 11:08:13,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:13,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833247830] [2022-11-16 11:08:13,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:13,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:14,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:14,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:14,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833247830] [2022-11-16 11:08:14,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833247830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:14,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:14,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:08:14,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062346601] [2022-11-16 11:08:14,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:14,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:08:14,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:14,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:08:14,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:08:14,853 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 253 [2022-11-16 11:08:14,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 1012 transitions, 13825 flow. Second operand has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:14,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:14,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 253 [2022-11-16 11:08:14,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:23,328 INFO L130 PetriNetUnfolder]: 4146/13848 cut-off events. [2022-11-16 11:08:23,328 INFO L131 PetriNetUnfolder]: For 75413/76104 co-relation queries the response was YES. [2022-11-16 11:08:23,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59063 conditions, 13848 events. 4146/13848 cut-off events. For 75413/76104 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 145377 event pairs, 710 based on Foata normal form. 99/13766 useless extension candidates. Maximal degree in co-relation 58972. Up to 5648 conditions per place. [2022-11-16 11:08:23,702 INFO L137 encePairwiseOnDemand]: 223/253 looper letters, 928 selfloop transitions, 344 changer transitions 7/1417 dead transitions. [2022-11-16 11:08:23,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 1417 transitions, 20194 flow [2022-11-16 11:08:23,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-16 11:08:23,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-16 11:08:23,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 4554 transitions. [2022-11-16 11:08:23,715 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2022-11-16 11:08:23,715 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 4554 transitions. [2022-11-16 11:08:23,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 4554 transitions. [2022-11-16 11:08:23,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:23,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 4554 transitions. [2022-11-16 11:08:23,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 157.0344827586207) internal successors, (4554), 29 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:23,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 253.0) internal successors, (7590), 30 states have internal predecessors, (7590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:23,744 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 253.0) internal successors, (7590), 30 states have internal predecessors, (7590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:23,745 INFO L175 Difference]: Start difference. First operand has 409 places, 1012 transitions, 13825 flow. Second operand 29 states and 4554 transitions. [2022-11-16 11:08:23,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 1417 transitions, 20194 flow [2022-11-16 11:08:24,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1417 transitions, 20166 flow, removed 12 selfloop flow, removed 2 redundant places. [2022-11-16 11:08:24,769 INFO L231 Difference]: Finished difference. Result has 440 places, 1072 transitions, 15787 flow [2022-11-16 11:08:24,770 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=13803, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1012, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=285, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=675, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=15787, PETRI_PLACES=440, PETRI_TRANSITIONS=1072} [2022-11-16 11:08:24,771 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, 184 predicate places. [2022-11-16 11:08:24,771 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 1072 transitions, 15787 flow [2022-11-16 11:08:24,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:24,772 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:24,772 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:24,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:08:24,773 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:08:24,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:24,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1461820634, now seen corresponding path program 5 times [2022-11-16 11:08:24,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:24,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818690816] [2022-11-16 11:08:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:24,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:26,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:26,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:26,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818690816] [2022-11-16 11:08:26,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818690816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:26,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:26,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:08:26,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082425093] [2022-11-16 11:08:26,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:26,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:08:26,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:26,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:08:26,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:08:26,451 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 253 [2022-11-16 11:08:26,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 1072 transitions, 15787 flow. Second operand has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:26,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:26,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 253 [2022-11-16 11:08:26,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:36,657 INFO L130 PetriNetUnfolder]: 5018/16961 cut-off events. [2022-11-16 11:08:36,657 INFO L131 PetriNetUnfolder]: For 108049/108563 co-relation queries the response was YES. [2022-11-16 11:08:36,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75106 conditions, 16961 events. 5018/16961 cut-off events. For 108049/108563 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 187895 event pairs, 877 based on Foata normal form. 163/16905 useless extension candidates. Maximal degree in co-relation 75006. Up to 3503 conditions per place. [2022-11-16 11:08:36,935 INFO L137 encePairwiseOnDemand]: 216/253 looper letters, 943 selfloop transitions, 572 changer transitions 7/1660 dead transitions. [2022-11-16 11:08:36,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 1660 transitions, 25331 flow [2022-11-16 11:08:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 11:08:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-16 11:08:36,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 4923 transitions. [2022-11-16 11:08:36,943 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6276934846359812 [2022-11-16 11:08:36,944 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 4923 transitions. [2022-11-16 11:08:36,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 4923 transitions. [2022-11-16 11:08:36,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:36,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 4923 transitions. [2022-11-16 11:08:36,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 158.80645161290323) internal successors, (4923), 31 states have internal predecessors, (4923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:36,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 253.0) internal successors, (8096), 32 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:36,971 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 253.0) internal successors, (8096), 32 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:36,971 INFO L175 Difference]: Start difference. First operand has 440 places, 1072 transitions, 15787 flow. Second operand 31 states and 4923 transitions. [2022-11-16 11:08:36,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 1660 transitions, 25331 flow [2022-11-16 11:08:38,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 1660 transitions, 25185 flow, removed 9 selfloop flow, removed 17 redundant places. [2022-11-16 11:08:38,277 INFO L231 Difference]: Finished difference. Result has 466 places, 1195 transitions, 20706 flow [2022-11-16 11:08:38,278 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=15671, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1072, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=456, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=20706, PETRI_PLACES=466, PETRI_TRANSITIONS=1195} [2022-11-16 11:08:38,279 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, 210 predicate places. [2022-11-16 11:08:38,279 INFO L495 AbstractCegarLoop]: Abstraction has has 466 places, 1195 transitions, 20706 flow [2022-11-16 11:08:38,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:38,279 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:38,280 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:38,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:08:38,280 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:08:38,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:38,281 INFO L85 PathProgramCache]: Analyzing trace with hash 817365334, now seen corresponding path program 6 times [2022-11-16 11:08:38,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:38,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091636210] [2022-11-16 11:08:38,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:38,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:39,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:39,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:39,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091636210] [2022-11-16 11:08:39,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091636210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:39,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:39,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:08:39,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353181505] [2022-11-16 11:08:39,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:39,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:08:39,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:39,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:08:39,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:08:39,797 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 253 [2022-11-16 11:08:39,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 1195 transitions, 20706 flow. Second operand has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:39,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:39,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 253 [2022-11-16 11:08:39,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:53,299 INFO L130 PetriNetUnfolder]: 6628/22421 cut-off events. [2022-11-16 11:08:53,300 INFO L131 PetriNetUnfolder]: For 175678/176427 co-relation queries the response was YES. [2022-11-16 11:08:53,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103794 conditions, 22421 events. 6628/22421 cut-off events. For 175678/176427 co-relation queries the response was YES. Maximal size of possible extension queue 752. Compared 264364 event pairs, 1324 based on Foata normal form. 188/22315 useless extension candidates. Maximal degree in co-relation 103681. Up to 7090 conditions per place. [2022-11-16 11:08:53,694 INFO L137 encePairwiseOnDemand]: 221/253 looper letters, 919 selfloop transitions, 668 changer transitions 3/1728 dead transitions. [2022-11-16 11:08:53,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 1728 transitions, 31548 flow [2022-11-16 11:08:53,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:08:53,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 11:08:53,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3314 transitions. [2022-11-16 11:08:53,700 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6237530585356672 [2022-11-16 11:08:53,700 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3314 transitions. [2022-11-16 11:08:53,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3314 transitions. [2022-11-16 11:08:53,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:53,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3314 transitions. [2022-11-16 11:08:53,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 157.8095238095238) internal successors, (3314), 21 states have internal predecessors, (3314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:53,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 253.0) internal successors, (5566), 22 states have internal predecessors, (5566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:53,719 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 253.0) internal successors, (5566), 22 states have internal predecessors, (5566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:53,719 INFO L175 Difference]: Start difference. First operand has 466 places, 1195 transitions, 20706 flow. Second operand 21 states and 3314 transitions. [2022-11-16 11:08:53,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 1728 transitions, 31548 flow [2022-11-16 11:08:56,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 1728 transitions, 31367 flow, removed 9 selfloop flow, removed 16 redundant places. [2022-11-16 11:08:56,637 INFO L231 Difference]: Finished difference. Result has 484 places, 1390 transitions, 27840 flow [2022-11-16 11:08:56,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=20581, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=473, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=27840, PETRI_PLACES=484, PETRI_TRANSITIONS=1390} [2022-11-16 11:08:56,638 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, 228 predicate places. [2022-11-16 11:08:56,638 INFO L495 AbstractCegarLoop]: Abstraction has has 484 places, 1390 transitions, 27840 flow [2022-11-16 11:08:56,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:56,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:56,639 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:56,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:08:56,639 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:08:56,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:56,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1752744900, now seen corresponding path program 7 times [2022-11-16 11:08:56,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:56,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912117484] [2022-11-16 11:08:56,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:56,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:57,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:57,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:57,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912117484] [2022-11-16 11:08:57,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912117484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:57,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:57,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:08:57,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057977572] [2022-11-16 11:08:57,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:57,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:08:57,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:57,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:08:57,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:08:57,643 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 253 [2022-11-16 11:08:57,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 1390 transitions, 27840 flow. Second operand has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:57,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:57,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 253 [2022-11-16 11:08:57,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:09:15,281 INFO L130 PetriNetUnfolder]: 7690/25871 cut-off events. [2022-11-16 11:09:15,281 INFO L131 PetriNetUnfolder]: For 250168/250913 co-relation queries the response was YES. [2022-11-16 11:09:15,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125387 conditions, 25871 events. 7690/25871 cut-off events. For 250168/250913 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 313283 event pairs, 1300 based on Foata normal form. 229/25776 useless extension candidates. Maximal degree in co-relation 125261. Up to 6283 conditions per place. [2022-11-16 11:09:16,054 INFO L137 encePairwiseOnDemand]: 216/253 looper letters, 1128 selfloop transitions, 800 changer transitions 5/2071 dead transitions. [2022-11-16 11:09:16,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 2071 transitions, 40788 flow [2022-11-16 11:09:16,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 11:09:16,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-16 11:09:16,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4469 transitions. [2022-11-16 11:09:16,061 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.63085827216262 [2022-11-16 11:09:16,061 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4469 transitions. [2022-11-16 11:09:16,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4469 transitions. [2022-11-16 11:09:16,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:09:16,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4469 transitions. [2022-11-16 11:09:16,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 159.60714285714286) internal successors, (4469), 28 states have internal predecessors, (4469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:16,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 253.0) internal successors, (7337), 29 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:16,081 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 253.0) internal successors, (7337), 29 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:16,081 INFO L175 Difference]: Start difference. First operand has 484 places, 1390 transitions, 27840 flow. Second operand 28 states and 4469 transitions. [2022-11-16 11:09:16,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 2071 transitions, 40788 flow [2022-11-16 11:09:21,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 2071 transitions, 40678 flow, removed 53 selfloop flow, removed 2 redundant places. [2022-11-16 11:09:21,381 INFO L231 Difference]: Finished difference. Result has 522 places, 1555 transitions, 35216 flow [2022-11-16 11:09:21,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=27780, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=639, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=35216, PETRI_PLACES=522, PETRI_TRANSITIONS=1555} [2022-11-16 11:09:21,383 INFO L288 CegarLoopForPetriNet]: 256 programPoint places, 266 predicate places. [2022-11-16 11:09:21,383 INFO L495 AbstractCegarLoop]: Abstraction has has 522 places, 1555 transitions, 35216 flow [2022-11-16 11:09:21,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:21,384 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:09:21,385 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:09:21,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:09:21,385 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:09:21,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:21,386 INFO L85 PathProgramCache]: Analyzing trace with hash 948439040, now seen corresponding path program 8 times [2022-11-16 11:09:21,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:21,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36804152] [2022-11-16 11:09:21,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:21,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:22,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:22,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36804152] [2022-11-16 11:09:22,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36804152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:22,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:22,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:09:22,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193504701] [2022-11-16 11:09:22,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:22,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:09:22,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:22,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:09:22,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:09:22,745 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 253 [2022-11-16 11:09:22,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 1555 transitions, 35216 flow. Second operand has 13 states, 13 states have (on average 146.84615384615384) internal successors, (1909), 13 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:22,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:09:22,748 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 253 [2022-11-16 11:09:22,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand