./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN/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_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-6b4ec56 [2022-11-20 11:31:38,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:31:38,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:31:38,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:31:38,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:31:38,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:31:38,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:31:38,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:31:38,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:31:38,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:31:38,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:31:38,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:31:38,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:31:38,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:31:38,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:31:38,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:31:38,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:31:38,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:31:38,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:31:38,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:31:38,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:31:38,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:31:38,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:31:38,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:31:38,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:31:38,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:31:38,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:31:38,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:31:38,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:31:38,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:31:38,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:31:38,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:31:38,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:31:38,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:31:38,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:31:38,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:31:38,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:31:38,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:31:38,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:31:38,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:31:38,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:31:38,928 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:31:38,965 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:31:38,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:31:38,966 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:31:38,966 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:31:38,967 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:31:38,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:31:38,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:31:38,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:31:38,969 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:31:38,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:31:38,970 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:31:38,970 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:31:38,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:31:38,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:31:38,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:31:38,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:31:38,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:31:38,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:31:38,972 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:31:38,972 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:31:38,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:31:38,972 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:31:38,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:31:38,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:31:38,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:31:38,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:31:38,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:31:38,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:31:38,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:31:38,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:31:38,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:31:38,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:31:38,975 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:31:38,975 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:31:38,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:31:38,975 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_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 [2022-11-20 11:31:39,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:31:39,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:31:39,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:31:39,256 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:31:39,256 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:31:39,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2022-11-20 11:31:42,342 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:31:42,713 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:31:42,713 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2022-11-20 11:31:42,728 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN/data/0baab567e/af68e3b7e87446f28b19b9c5c21924e5/FLAGa4eb3d780 [2022-11-20 11:31:42,743 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN/data/0baab567e/af68e3b7e87446f28b19b9c5c21924e5 [2022-11-20 11:31:42,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:31:42,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:31:42,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:31:42,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:31:42,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:31:42,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:31:42" (1/1) ... [2022-11-20 11:31:42,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e09df24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:42, skipping insertion in model container [2022-11-20 11:31:42,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:31:42" (1/1) ... [2022-11-20 11:31:42,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:31:42,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:31:43,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:31:43,826 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:31:43,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:31:44,015 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:31:44,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:44 WrapperNode [2022-11-20 11:31:44,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:31:44,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:31:44,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:31:44,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:31:44,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:44" (1/1) ... [2022-11-20 11:31:44,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:44" (1/1) ... [2022-11-20 11:31:44,116 INFO L138 Inliner]: procedures = 368, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 209 [2022-11-20 11:31:44,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:31:44,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:31:44,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:31:44,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:31:44,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:44" (1/1) ... [2022-11-20 11:31:44,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:44" (1/1) ... [2022-11-20 11:31:44,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:44" (1/1) ... [2022-11-20 11:31:44,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:44" (1/1) ... [2022-11-20 11:31:44,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:44" (1/1) ... [2022-11-20 11:31:44,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:44" (1/1) ... [2022-11-20 11:31:44,214 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:44" (1/1) ... [2022-11-20 11:31:44,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:44" (1/1) ... [2022-11-20 11:31:44,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:31:44,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:31:44,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:31:44,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:31:44,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:44" (1/1) ... [2022-11-20 11:31:44,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:31:44,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:44,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:31:44,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_918ff7e5-9fd0-44b1-b9d8-d4a1f04ab9cc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:31:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:31:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:31:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:31:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:31:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:31:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:31:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:31:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:31:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:31:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:31:44,312 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:31:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:31:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:31:44,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:31:44,314 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:31:44,536 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:31:44,538 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:31:45,067 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:31:45,078 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:31:45,078 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:31:45,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:45 BoogieIcfgContainer [2022-11-20 11:31:45,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:31:45,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:31:45,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:31:45,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:31:45,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:31:42" (1/3) ... [2022-11-20 11:31:45,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10927699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:45, skipping insertion in model container [2022-11-20 11:31:45,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:31:44" (2/3) ... [2022-11-20 11:31:45,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10927699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:31:45, skipping insertion in model container [2022-11-20 11:31:45,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:31:45" (3/3) ... [2022-11-20 11:31:45,095 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_06-ptra_nr.i [2022-11-20 11:31:45,105 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:31:45,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:31:45,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-20 11:31:45,119 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:31:45,205 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:31:45,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 248 transitions, 501 flow [2022-11-20 11:31:45,400 INFO L130 PetriNetUnfolder]: 0/247 cut-off events. [2022-11-20 11:31:45,400 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:31:45,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 247 events. 0/247 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. 0/225 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-20 11:31:45,408 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 248 transitions, 501 flow [2022-11-20 11:31:45,422 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 247 transitions, 497 flow [2022-11-20 11:31:45,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:31:45,441 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;@5c9cbb5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:31:45,441 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-11-20 11:31:45,451 INFO L130 PetriNetUnfolder]: 0/43 cut-off events. [2022-11-20 11:31:45,451 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:31:45,452 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:45,452 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] [2022-11-20 11:31:45,453 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)] === [2022-11-20 11:31:45,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:45,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1292603453, now seen corresponding path program 1 times [2022-11-20 11:31:45,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:45,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542132984] [2022-11-20 11:31:45,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:45,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:46,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:46,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:46,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542132984] [2022-11-20 11:31:46,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542132984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:46,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:46,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:46,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374397268] [2022-11-20 11:31:46,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:46,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:46,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:46,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:46,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:46,612 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 248 [2022-11-20 11:31:46,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 247 transitions, 497 flow. Second operand has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:46,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:46,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 248 [2022-11-20 11:31:46,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:47,445 INFO L130 PetriNetUnfolder]: 360/1333 cut-off events. [2022-11-20 11:31:47,445 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:31:47,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2158 conditions, 1333 events. 360/1333 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6837 event pairs, 360 based on Foata normal form. 0/1158 useless extension candidates. Maximal degree in co-relation 1956. Up to 806 conditions per place. [2022-11-20 11:31:47,464 INFO L137 encePairwiseOnDemand]: 230/248 looper letters, 85 selfloop transitions, 15 changer transitions 0/244 dead transitions. [2022-11-20 11:31:47,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 244 transitions, 691 flow [2022-11-20 11:31:47,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:47,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:47,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 973 transitions. [2022-11-20 11:31:47,492 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6538978494623656 [2022-11-20 11:31:47,493 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 973 transitions. [2022-11-20 11:31:47,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 973 transitions. [2022-11-20 11:31:47,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:47,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 973 transitions. [2022-11-20 11:31:47,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:47,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:47,521 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:47,523 INFO L175 Difference]: Start difference. First operand has 251 places, 247 transitions, 497 flow. Second operand 6 states and 973 transitions. [2022-11-20 11:31:47,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 244 transitions, 691 flow [2022-11-20 11:31:47,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 244 transitions, 690 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:31:47,541 INFO L231 Difference]: Finished difference. Result has 252 places, 244 transitions, 520 flow [2022-11-20 11:31:47,544 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=520, PETRI_PLACES=252, PETRI_TRANSITIONS=244} [2022-11-20 11:31:47,549 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 1 predicate places. [2022-11-20 11:31:47,550 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 244 transitions, 520 flow [2022-11-20 11:31:47,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:47,552 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:47,552 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] [2022-11-20 11:31:47,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:31:47,554 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)] === [2022-11-20 11:31:47,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:47,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1004537384, now seen corresponding path program 1 times [2022-11-20 11:31:47,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:47,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504477597] [2022-11-20 11:31:47,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:47,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:48,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:48,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:48,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504477597] [2022-11-20 11:31:48,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504477597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:48,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:48,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:48,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271135983] [2022-11-20 11:31:48,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:48,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:48,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:48,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:48,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:48,031 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 248 [2022-11-20 11:31:48,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 244 transitions, 520 flow. Second operand has 6 states, 6 states have (on average 147.5) internal successors, (885), 6 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:48,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 248 [2022-11-20 11:31:48,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:48,553 INFO L130 PetriNetUnfolder]: 360/1330 cut-off events. [2022-11-20 11:31:48,553 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:31:48,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2167 conditions, 1330 events. 360/1330 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6879 event pairs, 360 based on Foata normal form. 0/1158 useless extension candidates. Maximal degree in co-relation 1980. Up to 803 conditions per place. [2022-11-20 11:31:48,563 INFO L137 encePairwiseOnDemand]: 230/248 looper letters, 82 selfloop transitions, 15 changer transitions 0/241 dead transitions. [2022-11-20 11:31:48,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 241 transitions, 708 flow [2022-11-20 11:31:48,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:48,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:48,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 970 transitions. [2022-11-20 11:31:48,567 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6518817204301075 [2022-11-20 11:31:48,568 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 970 transitions. [2022-11-20 11:31:48,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 970 transitions. [2022-11-20 11:31:48,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:48,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 970 transitions. [2022-11-20 11:31:48,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 161.66666666666666) internal successors, (970), 6 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,576 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,577 INFO L175 Difference]: Start difference. First operand has 252 places, 244 transitions, 520 flow. Second operand 6 states and 970 transitions. [2022-11-20 11:31:48,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 241 transitions, 708 flow [2022-11-20 11:31:48,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 241 transitions, 678 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:31:48,589 INFO L231 Difference]: Finished difference. Result has 249 places, 241 transitions, 514 flow [2022-11-20 11:31:48,589 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=249, PETRI_TRANSITIONS=241} [2022-11-20 11:31:48,590 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -2 predicate places. [2022-11-20 11:31:48,591 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 241 transitions, 514 flow [2022-11-20 11:31:48,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 147.5) internal successors, (885), 6 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,592 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:48,592 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] [2022-11-20 11:31:48,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:31:48,593 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)] === [2022-11-20 11:31:48,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:48,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1921770962, now seen corresponding path program 1 times [2022-11-20 11:31:48,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:48,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699812452] [2022-11-20 11:31:48,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:48,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:48,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:48,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:48,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699812452] [2022-11-20 11:31:48,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699812452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:48,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:48,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:48,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537160903] [2022-11-20 11:31:48,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:48,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:48,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:48,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:48,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:48,680 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 248 [2022-11-20 11:31:48,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 241 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:48,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 248 [2022-11-20 11:31:48,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:48,758 INFO L130 PetriNetUnfolder]: 18/391 cut-off events. [2022-11-20 11:31:48,759 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:31:48,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 391 events. 18/391 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 815 event pairs, 18 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 309. Up to 56 conditions per place. [2022-11-20 11:31:48,761 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 19 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2022-11-20 11:31:48,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 240 transitions, 554 flow [2022-11-20 11:31:48,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:48,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:48,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 700 transitions. [2022-11-20 11:31:48,764 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9408602150537635 [2022-11-20 11:31:48,764 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 700 transitions. [2022-11-20 11:31:48,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 700 transitions. [2022-11-20 11:31:48,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:48,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 700 transitions. [2022-11-20 11:31:48,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,769 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,770 INFO L175 Difference]: Start difference. First operand has 249 places, 241 transitions, 514 flow. Second operand 3 states and 700 transitions. [2022-11-20 11:31:48,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 240 transitions, 554 flow [2022-11-20 11:31:48,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 240 transitions, 524 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:31:48,775 INFO L231 Difference]: Finished difference. Result has 245 places, 240 transitions, 486 flow [2022-11-20 11:31:48,776 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=245, PETRI_TRANSITIONS=240} [2022-11-20 11:31:48,776 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -6 predicate places. [2022-11-20 11:31:48,777 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 240 transitions, 486 flow [2022-11-20 11:31:48,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,778 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:48,778 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] [2022-11-20 11:31:48,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:31:48,778 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)] === [2022-11-20 11:31:48,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:48,779 INFO L85 PathProgramCache]: Analyzing trace with hash -599217216, now seen corresponding path program 1 times [2022-11-20 11:31:48,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:48,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497208419] [2022-11-20 11:31:48,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:48,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:48,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:48,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:48,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497208419] [2022-11-20 11:31:48,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497208419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:48,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:48,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:48,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296299886] [2022-11-20 11:31:48,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:48,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:48,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:48,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:48,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:48,838 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 248 [2022-11-20 11:31:48,839 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 240 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:48,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 248 [2022-11-20 11:31:48,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:48,906 INFO L130 PetriNetUnfolder]: 8/336 cut-off events. [2022-11-20 11:31:48,906 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:31:48,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 336 events. 8/336 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 496 event pairs, 8 based on Foata normal form. 0/316 useless extension candidates. Maximal degree in co-relation 304. Up to 27 conditions per place. [2022-11-20 11:31:48,908 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 12 selfloop transitions, 1 changer transitions 0/235 dead transitions. [2022-11-20 11:31:48,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 235 transitions, 502 flow [2022-11-20 11:31:48,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:48,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:48,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 705 transitions. [2022-11-20 11:31:48,911 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9475806451612904 [2022-11-20 11:31:48,911 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 705 transitions. [2022-11-20 11:31:48,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 705 transitions. [2022-11-20 11:31:48,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:48,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 705 transitions. [2022-11-20 11:31:48,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,917 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,917 INFO L175 Difference]: Start difference. First operand has 245 places, 240 transitions, 486 flow. Second operand 3 states and 705 transitions. [2022-11-20 11:31:48,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 235 transitions, 502 flow [2022-11-20 11:31:48,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 235 transitions, 498 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:48,922 INFO L231 Difference]: Finished difference. Result has 240 places, 235 transitions, 474 flow [2022-11-20 11:31:48,923 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=474, PETRI_PLACES=240, PETRI_TRANSITIONS=235} [2022-11-20 11:31:48,924 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -11 predicate places. [2022-11-20 11:31:48,924 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 235 transitions, 474 flow [2022-11-20 11:31:48,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:48,925 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:48,926 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] [2022-11-20 11:31:48,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:31:48,926 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)] === [2022-11-20 11:31:48,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:48,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1655649905, now seen corresponding path program 1 times [2022-11-20 11:31:48,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:48,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846172401] [2022-11-20 11:31:48,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:48,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:49,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:49,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:49,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846172401] [2022-11-20 11:31:49,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846172401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:49,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:49,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:49,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773902345] [2022-11-20 11:31:49,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:49,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:49,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:49,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:49,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:49,590 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 248 [2022-11-20 11:31:49,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 235 transitions, 474 flow. Second operand has 6 states, 6 states have (on average 158.16666666666666) internal successors, (949), 6 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:49,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:49,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 248 [2022-11-20 11:31:49,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:50,166 INFO L130 PetriNetUnfolder]: 416/1410 cut-off events. [2022-11-20 11:31:50,166 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:31:50,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2336 conditions, 1410 events. 416/1410 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 7051 event pairs, 416 based on Foata normal form. 0/1259 useless extension candidates. Maximal degree in co-relation 2257. Up to 916 conditions per place. [2022-11-20 11:31:50,170 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 83 selfloop transitions, 5 changer transitions 0/234 dead transitions. [2022-11-20 11:31:50,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 234 transitions, 648 flow [2022-11-20 11:31:50,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:50,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:50,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1007 transitions. [2022-11-20 11:31:50,174 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.676747311827957 [2022-11-20 11:31:50,175 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1007 transitions. [2022-11-20 11:31:50,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1007 transitions. [2022-11-20 11:31:50,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:50,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1007 transitions. [2022-11-20 11:31:50,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,184 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,184 INFO L175 Difference]: Start difference. First operand has 240 places, 235 transitions, 474 flow. Second operand 6 states and 1007 transitions. [2022-11-20 11:31:50,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 234 transitions, 648 flow [2022-11-20 11:31:50,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 234 transitions, 647 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:31:50,191 INFO L231 Difference]: Finished difference. Result has 243 places, 234 transitions, 481 flow [2022-11-20 11:31:50,192 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=481, PETRI_PLACES=243, PETRI_TRANSITIONS=234} [2022-11-20 11:31:50,195 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -8 predicate places. [2022-11-20 11:31:50,195 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 234 transitions, 481 flow [2022-11-20 11:31:50,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 158.16666666666666) internal successors, (949), 6 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,196 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:50,197 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] [2022-11-20 11:31:50,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:31:50,197 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)] === [2022-11-20 11:31:50,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:50,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1719227292, now seen corresponding path program 1 times [2022-11-20 11:31:50,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:50,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369783481] [2022-11-20 11:31:50,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:50,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:50,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:50,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:50,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369783481] [2022-11-20 11:31:50,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369783481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:50,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:50,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:50,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133481799] [2022-11-20 11:31:50,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:50,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:50,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:50,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:50,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:50,306 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 248 [2022-11-20 11:31:50,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 234 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:50,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 248 [2022-11-20 11:31:50,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:50,351 INFO L130 PetriNetUnfolder]: 0/233 cut-off events. [2022-11-20 11:31:50,351 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:31:50,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 233 events. 0/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-11-20 11:31:50,353 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 7 selfloop transitions, 2 changer transitions 0/233 dead transitions. [2022-11-20 11:31:50,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 233 transitions, 497 flow [2022-11-20 11:31:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:50,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:50,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 724 transitions. [2022-11-20 11:31:50,356 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9731182795698925 [2022-11-20 11:31:50,356 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 724 transitions. [2022-11-20 11:31:50,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 724 transitions. [2022-11-20 11:31:50,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:50,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 724 transitions. [2022-11-20 11:31:50,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,362 INFO L175 Difference]: Start difference. First operand has 243 places, 234 transitions, 481 flow. Second operand 3 states and 724 transitions. [2022-11-20 11:31:50,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 233 transitions, 497 flow [2022-11-20 11:31:50,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 233 transitions, 487 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:31:50,367 INFO L231 Difference]: Finished difference. Result has 239 places, 233 transitions, 473 flow [2022-11-20 11:31:50,368 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=473, PETRI_PLACES=239, PETRI_TRANSITIONS=233} [2022-11-20 11:31:50,370 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -12 predicate places. [2022-11-20 11:31:50,371 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 233 transitions, 473 flow [2022-11-20 11:31:50,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,371 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:50,372 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:50,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:31:50,372 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)] === [2022-11-20 11:31:50,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:50,373 INFO L85 PathProgramCache]: Analyzing trace with hash -457398828, now seen corresponding path program 1 times [2022-11-20 11:31:50,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:50,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478516099] [2022-11-20 11:31:50,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:50,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:50,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:50,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:50,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478516099] [2022-11-20 11:31:50,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478516099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:50,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:50,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:31:50,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433153369] [2022-11-20 11:31:50,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:50,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:31:50,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:50,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:31:50,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:31:50,478 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 248 [2022-11-20 11:31:50,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 233 transitions, 473 flow. Second operand has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:50,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 248 [2022-11-20 11:31:50,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:50,517 INFO L130 PetriNetUnfolder]: 0/232 cut-off events. [2022-11-20 11:31:50,517 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:31:50,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 232 events. 0/232 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-11-20 11:31:50,519 INFO L137 encePairwiseOnDemand]: 246/248 looper letters, 4 selfloop transitions, 1 changer transitions 0/232 dead transitions. [2022-11-20 11:31:50,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 232 transitions, 481 flow [2022-11-20 11:31:50,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:31:50,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:31:50,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2022-11-20 11:31:50,523 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9798387096774194 [2022-11-20 11:31:50,523 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2022-11-20 11:31:50,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2022-11-20 11:31:50,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:50,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2022-11-20 11:31:50,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,530 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,531 INFO L175 Difference]: Start difference. First operand has 239 places, 233 transitions, 473 flow. Second operand 3 states and 729 transitions. [2022-11-20 11:31:50,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 232 transitions, 481 flow [2022-11-20 11:31:50,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 232 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:31:50,536 INFO L231 Difference]: Finished difference. Result has 238 places, 232 transitions, 469 flow [2022-11-20 11:31:50,537 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=469, PETRI_PLACES=238, PETRI_TRANSITIONS=232} [2022-11-20 11:31:50,537 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -13 predicate places. [2022-11-20 11:31:50,538 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 232 transitions, 469 flow [2022-11-20 11:31:50,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:50,538 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:50,539 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] [2022-11-20 11:31:50,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:31:50,540 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)] === [2022-11-20 11:31:50,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:50,540 INFO L85 PathProgramCache]: Analyzing trace with hash -430693432, now seen corresponding path program 1 times [2022-11-20 11:31:50,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:50,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917527188] [2022-11-20 11:31:50,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:50,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:51,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:51,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:51,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917527188] [2022-11-20 11:31:51,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917527188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:51,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:51,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:51,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030192128] [2022-11-20 11:31:51,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:51,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:51,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:51,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:51,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:51,490 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 248 [2022-11-20 11:31:51,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 232 transitions, 469 flow. Second operand has 6 states, 6 states have (on average 163.66666666666666) internal successors, (982), 6 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:51,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:51,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 248 [2022-11-20 11:31:51,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:52,480 INFO L130 PetriNetUnfolder]: 748/2427 cut-off events. [2022-11-20 11:31:52,480 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:31:52,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4066 conditions, 2427 events. 748/2427 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 15221 event pairs, 76 based on Foata normal form. 0/2180 useless extension candidates. Maximal degree in co-relation 3988. Up to 791 conditions per place. [2022-11-20 11:31:52,491 INFO L137 encePairwiseOnDemand]: 220/248 looper letters, 171 selfloop transitions, 70 changer transitions 0/388 dead transitions. [2022-11-20 11:31:52,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 388 transitions, 1263 flow [2022-11-20 11:31:52,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:52,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:52,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1179 transitions. [2022-11-20 11:31:52,495 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7923387096774194 [2022-11-20 11:31:52,496 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1179 transitions. [2022-11-20 11:31:52,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1179 transitions. [2022-11-20 11:31:52,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:52,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1179 transitions. [2022-11-20 11:31:52,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.5) internal successors, (1179), 6 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:52,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:52,503 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:52,503 INFO L175 Difference]: Start difference. First operand has 238 places, 232 transitions, 469 flow. Second operand 6 states and 1179 transitions. [2022-11-20 11:31:52,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 388 transitions, 1263 flow [2022-11-20 11:31:52,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 388 transitions, 1262 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:31:52,513 INFO L231 Difference]: Finished difference. Result has 246 places, 302 transitions, 946 flow [2022-11-20 11:31:52,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=946, PETRI_PLACES=246, PETRI_TRANSITIONS=302} [2022-11-20 11:31:52,517 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, -5 predicate places. [2022-11-20 11:31:52,517 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 302 transitions, 946 flow [2022-11-20 11:31:52,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.66666666666666) internal successors, (982), 6 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:52,518 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:52,518 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] [2022-11-20 11:31:52,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:31:52,519 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)] === [2022-11-20 11:31:52,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:52,520 INFO L85 PathProgramCache]: Analyzing trace with hash -432670038, now seen corresponding path program 1 times [2022-11-20 11:31:52,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:52,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183925679] [2022-11-20 11:31:52,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:52,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:53,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:53,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:53,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183925679] [2022-11-20 11:31:53,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183925679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:53,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:53,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:53,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249094738] [2022-11-20 11:31:53,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:53,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:53,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:53,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:53,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:53,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 248 [2022-11-20 11:31:53,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 302 transitions, 946 flow. Second operand has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:53,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:53,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 248 [2022-11-20 11:31:53,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:54,116 INFO L130 PetriNetUnfolder]: 836/2741 cut-off events. [2022-11-20 11:31:54,116 INFO L131 PetriNetUnfolder]: For 879/879 co-relation queries the response was YES. [2022-11-20 11:31:54,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5985 conditions, 2741 events. 836/2741 cut-off events. For 879/879 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17638 event pairs, 379 based on Foata normal form. 0/2556 useless extension candidates. Maximal degree in co-relation 5905. Up to 1700 conditions per place. [2022-11-20 11:31:54,133 INFO L137 encePairwiseOnDemand]: 233/248 looper letters, 166 selfloop transitions, 48 changer transitions 0/362 dead transitions. [2022-11-20 11:31:54,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 362 transitions, 1590 flow [2022-11-20 11:31:54,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:54,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:54,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1079 transitions. [2022-11-20 11:31:54,137 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7251344086021505 [2022-11-20 11:31:54,139 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1079 transitions. [2022-11-20 11:31:54,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1079 transitions. [2022-11-20 11:31:54,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:54,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1079 transitions. [2022-11-20 11:31:54,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.83333333333334) internal successors, (1079), 6 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:54,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:54,146 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:54,146 INFO L175 Difference]: Start difference. First operand has 246 places, 302 transitions, 946 flow. Second operand 6 states and 1079 transitions. [2022-11-20 11:31:54,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 362 transitions, 1590 flow [2022-11-20 11:31:54,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 362 transitions, 1590 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:31:54,173 INFO L231 Difference]: Finished difference. Result has 256 places, 345 transitions, 1334 flow [2022-11-20 11:31:54,174 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1334, PETRI_PLACES=256, PETRI_TRANSITIONS=345} [2022-11-20 11:31:54,175 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 5 predicate places. [2022-11-20 11:31:54,175 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 345 transitions, 1334 flow [2022-11-20 11:31:54,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:54,176 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:54,176 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] [2022-11-20 11:31:54,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:31:54,176 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)] === [2022-11-20 11:31:54,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:54,177 INFO L85 PathProgramCache]: Analyzing trace with hash -762713712, now seen corresponding path program 1 times [2022-11-20 11:31:54,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:54,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719881886] [2022-11-20 11:31:54,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:54,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:54,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:54,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:54,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719881886] [2022-11-20 11:31:54,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719881886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:54,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:54,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:54,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346546633] [2022-11-20 11:31:54,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:54,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:54,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:54,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:54,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:54,870 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 248 [2022-11-20 11:31:54,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 345 transitions, 1334 flow. Second operand has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:54,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:54,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 248 [2022-11-20 11:31:54,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:56,196 INFO L130 PetriNetUnfolder]: 985/3392 cut-off events. [2022-11-20 11:31:56,197 INFO L131 PetriNetUnfolder]: For 2072/2188 co-relation queries the response was YES. [2022-11-20 11:31:56,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8255 conditions, 3392 events. 985/3392 cut-off events. For 2072/2188 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 24019 event pairs, 172 based on Foata normal form. 0/3253 useless extension candidates. Maximal degree in co-relation 8167. Up to 1579 conditions per place. [2022-11-20 11:31:56,226 INFO L137 encePairwiseOnDemand]: 226/248 looper letters, 272 selfloop transitions, 135 changer transitions 4/560 dead transitions. [2022-11-20 11:31:56,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 560 transitions, 3248 flow [2022-11-20 11:31:56,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:56,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:56,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1146 transitions. [2022-11-20 11:31:56,230 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7701612903225806 [2022-11-20 11:31:56,231 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1146 transitions. [2022-11-20 11:31:56,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1146 transitions. [2022-11-20 11:31:56,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:56,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1146 transitions. [2022-11-20 11:31:56,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:56,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:56,238 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:56,239 INFO L175 Difference]: Start difference. First operand has 256 places, 345 transitions, 1334 flow. Second operand 6 states and 1146 transitions. [2022-11-20 11:31:56,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 560 transitions, 3248 flow [2022-11-20 11:31:56,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 560 transitions, 3230 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-20 11:31:56,265 INFO L231 Difference]: Finished difference. Result has 266 places, 475 transitions, 2674 flow [2022-11-20 11:31:56,267 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2674, PETRI_PLACES=266, PETRI_TRANSITIONS=475} [2022-11-20 11:31:56,268 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 15 predicate places. [2022-11-20 11:31:56,268 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 475 transitions, 2674 flow [2022-11-20 11:31:56,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:56,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:56,270 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] [2022-11-20 11:31:56,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:31:56,270 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)] === [2022-11-20 11:31:56,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:56,271 INFO L85 PathProgramCache]: Analyzing trace with hash 29735855, now seen corresponding path program 1 times [2022-11-20 11:31:56,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:56,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699867477] [2022-11-20 11:31:56,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:56,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:56,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:56,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:56,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699867477] [2022-11-20 11:31:56,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699867477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:56,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:56,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:56,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356754350] [2022-11-20 11:31:56,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:56,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:56,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:56,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:56,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:56,938 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 248 [2022-11-20 11:31:56,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 475 transitions, 2674 flow. Second operand has 6 states, 6 states have (on average 165.5) internal successors, (993), 6 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:56,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:56,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 248 [2022-11-20 11:31:56,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:58,071 INFO L130 PetriNetUnfolder]: 1055/3531 cut-off events. [2022-11-20 11:31:58,071 INFO L131 PetriNetUnfolder]: For 3965/4034 co-relation queries the response was YES. [2022-11-20 11:31:58,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10396 conditions, 3531 events. 1055/3531 cut-off events. For 3965/4034 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 25102 event pairs, 258 based on Foata normal form. 0/3438 useless extension candidates. Maximal degree in co-relation 10306. Up to 2152 conditions per place. [2022-11-20 11:31:58,121 INFO L137 encePairwiseOnDemand]: 233/248 looper letters, 331 selfloop transitions, 62 changer transitions 0/542 dead transitions. [2022-11-20 11:31:58,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 542 transitions, 3874 flow [2022-11-20 11:31:58,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:31:58,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:31:58,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1079 transitions. [2022-11-20 11:31:58,125 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7251344086021505 [2022-11-20 11:31:58,125 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1079 transitions. [2022-11-20 11:31:58,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1079 transitions. [2022-11-20 11:31:58,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:58,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1079 transitions. [2022-11-20 11:31:58,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.83333333333334) internal successors, (1079), 6 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:58,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:58,133 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:58,133 INFO L175 Difference]: Start difference. First operand has 266 places, 475 transitions, 2674 flow. Second operand 6 states and 1079 transitions. [2022-11-20 11:31:58,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 542 transitions, 3874 flow [2022-11-20 11:31:58,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 542 transitions, 3838 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-11-20 11:31:58,173 INFO L231 Difference]: Finished difference. Result has 276 places, 524 transitions, 3264 flow [2022-11-20 11:31:58,174 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=2638, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3264, PETRI_PLACES=276, PETRI_TRANSITIONS=524} [2022-11-20 11:31:58,175 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 25 predicate places. [2022-11-20 11:31:58,175 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 524 transitions, 3264 flow [2022-11-20 11:31:58,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.5) internal successors, (993), 6 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:58,176 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:58,176 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] [2022-11-20 11:31:58,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:31:58,176 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)] === [2022-11-20 11:31:58,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:58,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1030604795, now seen corresponding path program 1 times [2022-11-20 11:31:58,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:58,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545412895] [2022-11-20 11:31:58,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:58,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:59,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:31:59,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:59,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545412895] [2022-11-20 11:31:59,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545412895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:59,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:59,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:31:59,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755459914] [2022-11-20 11:31:59,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:59,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:31:59,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:59,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:31:59,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:31:59,918 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-20 11:31:59,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 524 transitions, 3264 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:59,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:59,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-20 11:31:59,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:32:03,901 INFO L130 PetriNetUnfolder]: 2033/6688 cut-off events. [2022-11-20 11:32:03,902 INFO L131 PetriNetUnfolder]: For 10476/10587 co-relation queries the response was YES. [2022-11-20 11:32:03,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20950 conditions, 6688 events. 2033/6688 cut-off events. For 10476/10587 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 56723 event pairs, 291 based on Foata normal form. 43/6614 useless extension candidates. Maximal degree in co-relation 20846. Up to 1329 conditions per place. [2022-11-20 11:32:03,965 INFO L137 encePairwiseOnDemand]: 212/248 looper letters, 756 selfloop transitions, 251 changer transitions 4/1142 dead transitions. [2022-11-20 11:32:03,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 1142 transitions, 9952 flow [2022-11-20 11:32:03,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 11:32:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-20 11:32:03,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3893 transitions. [2022-11-20 11:32:03,975 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6279032258064516 [2022-11-20 11:32:03,975 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3893 transitions. [2022-11-20 11:32:03,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3893 transitions. [2022-11-20 11:32:03,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:32:03,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3893 transitions. [2022-11-20 11:32:03,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 155.72) internal successors, (3893), 25 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:03,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 248.0) internal successors, (6448), 26 states have internal predecessors, (6448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:04,000 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 248.0) internal successors, (6448), 26 states have internal predecessors, (6448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:04,000 INFO L175 Difference]: Start difference. First operand has 276 places, 524 transitions, 3264 flow. Second operand 25 states and 3893 transitions. [2022-11-20 11:32:04,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 1142 transitions, 9952 flow [2022-11-20 11:32:04,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 1142 transitions, 9728 flow, removed 112 selfloop flow, removed 0 redundant places. [2022-11-20 11:32:04,100 INFO L231 Difference]: Finished difference. Result has 321 places, 697 transitions, 5826 flow [2022-11-20 11:32:04,101 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=3152, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=5826, PETRI_PLACES=321, PETRI_TRANSITIONS=697} [2022-11-20 11:32:04,101 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 70 predicate places. [2022-11-20 11:32:04,102 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 697 transitions, 5826 flow [2022-11-20 11:32:04,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:04,103 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:32:04,104 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] [2022-11-20 11:32:04,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:32:04,104 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-20 11:32:04,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:04,105 INFO L85 PathProgramCache]: Analyzing trace with hash -363914509, now seen corresponding path program 2 times [2022-11-20 11:32:04,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:04,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329406042] [2022-11-20 11:32:04,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:04,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:05,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:32:05,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:05,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329406042] [2022-11-20 11:32:05,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329406042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:05,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:05,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:32:05,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845110002] [2022-11-20 11:32:05,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:05,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:32:05,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:05,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:32:05,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:32:05,268 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-20 11:32:05,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 697 transitions, 5826 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:05,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:32:05,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-20 11:32:05,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:32:09,759 INFO L130 PetriNetUnfolder]: 2140/6927 cut-off events. [2022-11-20 11:32:09,760 INFO L131 PetriNetUnfolder]: For 16585/16744 co-relation queries the response was YES. [2022-11-20 11:32:09,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24546 conditions, 6927 events. 2140/6927 cut-off events. For 16585/16744 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 58654 event pairs, 291 based on Foata normal form. 56/6867 useless extension candidates. Maximal degree in co-relation 24417. Up to 2228 conditions per place. [2022-11-20 11:32:09,865 INFO L137 encePairwiseOnDemand]: 218/248 looper letters, 779 selfloop transitions, 219 changer transitions 7/1136 dead transitions. [2022-11-20 11:32:09,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1136 transitions, 11134 flow [2022-11-20 11:32:09,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-20 11:32:09,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-20 11:32:09,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 4441 transitions. [2022-11-20 11:32:09,878 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6174916573971079 [2022-11-20 11:32:09,878 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 4441 transitions. [2022-11-20 11:32:09,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 4441 transitions. [2022-11-20 11:32:09,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:32:09,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 4441 transitions. [2022-11-20 11:32:09,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 153.13793103448276) internal successors, (4441), 29 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:09,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 248.0) internal successors, (7440), 30 states have internal predecessors, (7440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:09,907 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 248.0) internal successors, (7440), 30 states have internal predecessors, (7440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:09,908 INFO L175 Difference]: Start difference. First operand has 321 places, 697 transitions, 5826 flow. Second operand 29 states and 4441 transitions. [2022-11-20 11:32:09,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1136 transitions, 11134 flow [2022-11-20 11:32:10,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1136 transitions, 11108 flow, removed 11 selfloop flow, removed 2 redundant places. [2022-11-20 11:32:10,094 INFO L231 Difference]: Finished difference. Result has 355 places, 774 transitions, 7291 flow [2022-11-20 11:32:10,095 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=5800, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=7291, PETRI_PLACES=355, PETRI_TRANSITIONS=774} [2022-11-20 11:32:10,096 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 104 predicate places. [2022-11-20 11:32:10,096 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 774 transitions, 7291 flow [2022-11-20 11:32:10,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:10,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:32:10,097 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] [2022-11-20 11:32:10,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:32:10,098 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-20 11:32:10,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:10,099 INFO L85 PathProgramCache]: Analyzing trace with hash 2054598988, now seen corresponding path program 1 times [2022-11-20 11:32:10,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:10,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326096570] [2022-11-20 11:32:10,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:10,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:11,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:32:11,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:11,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326096570] [2022-11-20 11:32:11,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326096570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:11,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:11,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:32:11,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356658138] [2022-11-20 11:32:11,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:11,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:32:11,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:11,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:32:11,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:32:11,258 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 248 [2022-11-20 11:32:11,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 774 transitions, 7291 flow. Second operand has 13 states, 13 states have (on average 140.84615384615384) internal successors, (1831), 13 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:11,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:32:11,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 248 [2022-11-20 11:32:11,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:32:14,787 INFO L130 PetriNetUnfolder]: 2204/7071 cut-off events. [2022-11-20 11:32:14,787 INFO L131 PetriNetUnfolder]: For 23608/23738 co-relation queries the response was YES. [2022-11-20 11:32:14,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27231 conditions, 7071 events. 2204/7071 cut-off events. For 23608/23738 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 60087 event pairs, 363 based on Foata normal form. 47/6984 useless extension candidates. Maximal degree in co-relation 27092. Up to 3453 conditions per place. [2022-11-20 11:32:14,881 INFO L137 encePairwiseOnDemand]: 228/248 looper letters, 730 selfloop transitions, 160 changer transitions 2/1020 dead transitions. [2022-11-20 11:32:14,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 1020 transitions, 11334 flow [2022-11-20 11:32:14,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 11:32:14,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-20 11:32:14,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3576 transitions. [2022-11-20 11:32:14,889 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6008064516129032 [2022-11-20 11:32:14,889 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3576 transitions. [2022-11-20 11:32:14,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3576 transitions. [2022-11-20 11:32:14,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:32:14,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3576 transitions. [2022-11-20 11:32:14,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 149.0) internal successors, (3576), 24 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:14,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 248.0) internal successors, (6200), 25 states have internal predecessors, (6200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:14,920 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 248.0) internal successors, (6200), 25 states have internal predecessors, (6200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:14,920 INFO L175 Difference]: Start difference. First operand has 355 places, 774 transitions, 7291 flow. Second operand 24 states and 3576 transitions. [2022-11-20 11:32:14,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 1020 transitions, 11334 flow [2022-11-20 11:32:15,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 1020 transitions, 11240 flow, removed 45 selfloop flow, removed 2 redundant places. [2022-11-20 11:32:15,389 INFO L231 Difference]: Finished difference. Result has 381 places, 805 transitions, 7958 flow [2022-11-20 11:32:15,390 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=7205, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=774, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=7958, PETRI_PLACES=381, PETRI_TRANSITIONS=805} [2022-11-20 11:32:15,391 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 130 predicate places. [2022-11-20 11:32:15,391 INFO L495 AbstractCegarLoop]: Abstraction has has 381 places, 805 transitions, 7958 flow [2022-11-20 11:32:15,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 140.84615384615384) internal successors, (1831), 13 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:15,392 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:32:15,392 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] [2022-11-20 11:32:15,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:32:15,393 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)] === [2022-11-20 11:32:15,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:15,393 INFO L85 PathProgramCache]: Analyzing trace with hash 560525299, now seen corresponding path program 3 times [2022-11-20 11:32:15,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:15,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495114806] [2022-11-20 11:32:15,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:15,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:16,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:32:16,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:16,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495114806] [2022-11-20 11:32:16,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495114806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:16,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:16,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:32:16,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384398189] [2022-11-20 11:32:16,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:16,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:32:16,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:16,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:32:16,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:32:16,581 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-20 11:32:16,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 805 transitions, 7958 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:16,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:32:16,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-20 11:32:16,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:32:21,115 INFO L130 PetriNetUnfolder]: 3030/10015 cut-off events. [2022-11-20 11:32:21,115 INFO L131 PetriNetUnfolder]: For 39458/39705 co-relation queries the response was YES. [2022-11-20 11:32:21,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39795 conditions, 10015 events. 3030/10015 cut-off events. For 39458/39705 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 95866 event pairs, 591 based on Foata normal form. 95/9965 useless extension candidates. Maximal degree in co-relation 39718. Up to 3045 conditions per place. [2022-11-20 11:32:21,241 INFO L137 encePairwiseOnDemand]: 216/248 looper letters, 817 selfloop transitions, 313 changer transitions 3/1267 dead transitions. [2022-11-20 11:32:21,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 1267 transitions, 14828 flow [2022-11-20 11:32:21,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:32:21,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 11:32:21,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3229 transitions. [2022-11-20 11:32:21,252 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6200076804915514 [2022-11-20 11:32:21,252 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3229 transitions. [2022-11-20 11:32:21,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3229 transitions. [2022-11-20 11:32:21,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:32:21,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3229 transitions. [2022-11-20 11:32:21,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 153.76190476190476) internal successors, (3229), 21 states have internal predecessors, (3229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:21,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 248.0) internal successors, (5456), 22 states have internal predecessors, (5456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:21,277 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 248.0) internal successors, (5456), 22 states have internal predecessors, (5456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:21,278 INFO L175 Difference]: Start difference. First operand has 381 places, 805 transitions, 7958 flow. Second operand 21 states and 3229 transitions. [2022-11-20 11:32:21,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 1267 transitions, 14828 flow [2022-11-20 11:32:21,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 1267 transitions, 14670 flow, removed 14 selfloop flow, removed 12 redundant places. [2022-11-20 11:32:21,867 INFO L231 Difference]: Finished difference. Result has 403 places, 947 transitions, 11154 flow [2022-11-20 11:32:21,868 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=7870, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=805, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=11154, PETRI_PLACES=403, PETRI_TRANSITIONS=947} [2022-11-20 11:32:21,870 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 152 predicate places. [2022-11-20 11:32:21,870 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 947 transitions, 11154 flow [2022-11-20 11:32:21,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:21,871 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:32:21,872 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] [2022-11-20 11:32:21,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:32:21,872 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)] === [2022-11-20 11:32:21,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:21,873 INFO L85 PathProgramCache]: Analyzing trace with hash -400447731, now seen corresponding path program 4 times [2022-11-20 11:32:21,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:21,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190838092] [2022-11-20 11:32:21,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:21,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:22,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:32:22,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:22,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190838092] [2022-11-20 11:32:22,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190838092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:22,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:22,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:32:22,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062867465] [2022-11-20 11:32:22,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:22,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:32:22,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:22,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:32:22,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:32:22,890 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-20 11:32:22,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 947 transitions, 11154 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:22,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:32:22,892 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-20 11:32:22,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:32:30,188 INFO L130 PetriNetUnfolder]: 4378/14508 cut-off events. [2022-11-20 11:32:30,188 INFO L131 PetriNetUnfolder]: For 70001/70465 co-relation queries the response was YES. [2022-11-20 11:32:30,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60344 conditions, 14508 events. 4378/14508 cut-off events. For 70001/70465 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 153497 event pairs, 656 based on Foata normal form. 187/14508 useless extension candidates. Maximal degree in co-relation 60253. Up to 2790 conditions per place. [2022-11-20 11:32:30,388 INFO L137 encePairwiseOnDemand]: 211/248 looper letters, 939 selfloop transitions, 545 changer transitions 6/1624 dead transitions. [2022-11-20 11:32:30,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1624 transitions, 21318 flow [2022-11-20 11:32:30,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 11:32:30,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 11:32:30,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4368 transitions. [2022-11-20 11:32:30,396 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6290322580645161 [2022-11-20 11:32:30,396 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4368 transitions. [2022-11-20 11:32:30,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4368 transitions. [2022-11-20 11:32:30,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:32:30,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4368 transitions. [2022-11-20 11:32:30,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 156.0) internal successors, (4368), 28 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:30,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 248.0) internal successors, (7192), 29 states have internal predecessors, (7192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:30,419 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 248.0) internal successors, (7192), 29 states have internal predecessors, (7192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:30,420 INFO L175 Difference]: Start difference. First operand has 403 places, 947 transitions, 11154 flow. Second operand 28 states and 4368 transitions. [2022-11-20 11:32:30,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1624 transitions, 21318 flow [2022-11-20 11:32:31,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 1624 transitions, 21206 flow, removed 54 selfloop flow, removed 2 redundant places. [2022-11-20 11:32:31,180 INFO L231 Difference]: Finished difference. Result has 439 places, 1116 transitions, 16230 flow [2022-11-20 11:32:31,181 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=11078, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=381, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=16230, PETRI_PLACES=439, PETRI_TRANSITIONS=1116} [2022-11-20 11:32:31,182 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 188 predicate places. [2022-11-20 11:32:31,182 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 1116 transitions, 16230 flow [2022-11-20 11:32:31,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:31,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:32:31,183 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] [2022-11-20 11:32:31,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:32:31,184 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)] === [2022-11-20 11:32:31,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:31,184 INFO L85 PathProgramCache]: Analyzing trace with hash -146302761, now seen corresponding path program 5 times [2022-11-20 11:32:31,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:31,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408941885] [2022-11-20 11:32:31,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:31,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:32,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:32:32,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:32,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408941885] [2022-11-20 11:32:32,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408941885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:32,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:32,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:32:32,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878910122] [2022-11-20 11:32:32,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:32,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:32:32,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:32,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:32:32,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:32:32,578 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-20 11:32:32,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 1116 transitions, 16230 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:32,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:32:32,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-20 11:32:32,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:32:42,725 INFO L130 PetriNetUnfolder]: 5964/19988 cut-off events. [2022-11-20 11:32:42,725 INFO L131 PetriNetUnfolder]: For 122765/123409 co-relation queries the response was YES. [2022-11-20 11:32:42,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87127 conditions, 19988 events. 5964/19988 cut-off events. For 122765/123409 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 227850 event pairs, 974 based on Foata normal form. 250/19990 useless extension candidates. Maximal degree in co-relation 87021. Up to 4448 conditions per place. [2022-11-20 11:32:43,048 INFO L137 encePairwiseOnDemand]: 211/248 looper letters, 939 selfloop transitions, 700 changer transitions 7/1780 dead transitions. [2022-11-20 11:32:43,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 1780 transitions, 27300 flow [2022-11-20 11:32:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 11:32:43,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-20 11:32:43,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4651 transitions. [2022-11-20 11:32:43,058 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6251344086021505 [2022-11-20 11:32:43,058 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 4651 transitions. [2022-11-20 11:32:43,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 4651 transitions. [2022-11-20 11:32:43,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:32:43,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 4651 transitions. [2022-11-20 11:32:43,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 155.03333333333333) internal successors, (4651), 30 states have internal predecessors, (4651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:43,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 248.0) internal successors, (7688), 31 states have internal predecessors, (7688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:43,084 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 248.0) internal successors, (7688), 31 states have internal predecessors, (7688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:43,084 INFO L175 Difference]: Start difference. First operand has 439 places, 1116 transitions, 16230 flow. Second operand 30 states and 4651 transitions. [2022-11-20 11:32:43,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 1780 transitions, 27300 flow [2022-11-20 11:32:44,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 1780 transitions, 27063 flow, removed 54 selfloop flow, removed 15 redundant places. [2022-11-20 11:32:44,680 INFO L231 Difference]: Finished difference. Result has 470 places, 1310 transitions, 22846 flow [2022-11-20 11:32:44,681 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=16033, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=506, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=22846, PETRI_PLACES=470, PETRI_TRANSITIONS=1310} [2022-11-20 11:32:44,682 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 219 predicate places. [2022-11-20 11:32:44,682 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 1310 transitions, 22846 flow [2022-11-20 11:32:44,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:44,683 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:32:44,684 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:32:44,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:32:44,684 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)] === [2022-11-20 11:32:44,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:44,685 INFO L85 PathProgramCache]: Analyzing trace with hash -680722107, now seen corresponding path program 6 times [2022-11-20 11:32:44,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:44,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017827389] [2022-11-20 11:32:44,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:44,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:45,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:32:45,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:45,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017827389] [2022-11-20 11:32:45,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017827389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:45,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:45,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:32:45,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627487629] [2022-11-20 11:32:45,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:45,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:32:45,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:45,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:32:45,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:32:45,839 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-20 11:32:45,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 1310 transitions, 22846 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:45,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:32:45,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-20 11:32:45,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:32:58,139 INFO L130 PetriNetUnfolder]: 6566/21941 cut-off events. [2022-11-20 11:32:58,139 INFO L131 PetriNetUnfolder]: For 177131/177803 co-relation queries the response was YES. [2022-11-20 11:32:58,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102076 conditions, 21941 events. 6566/21941 cut-off events. For 177131/177803 co-relation queries the response was YES. Maximal size of possible extension queue 714. Compared 255284 event pairs, 1095 based on Foata normal form. 236/21901 useless extension candidates. Maximal degree in co-relation 101953. Up to 5488 conditions per place. [2022-11-20 11:32:58,533 INFO L137 encePairwiseOnDemand]: 211/248 looper letters, 1076 selfloop transitions, 724 changer transitions 5/1939 dead transitions. [2022-11-20 11:32:58,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 1939 transitions, 33856 flow [2022-11-20 11:32:58,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-20 11:32:58,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-20 11:32:58,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4208 transitions. [2022-11-20 11:32:58,541 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6284348864994026 [2022-11-20 11:32:58,541 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4208 transitions. [2022-11-20 11:32:58,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4208 transitions. [2022-11-20 11:32:58,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:32:58,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4208 transitions. [2022-11-20 11:32:58,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 155.85185185185185) internal successors, (4208), 27 states have internal predecessors, (4208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:58,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 248.0) internal successors, (6944), 28 states have internal predecessors, (6944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:58,561 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 248.0) internal successors, (6944), 28 states have internal predecessors, (6944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:32:58,561 INFO L175 Difference]: Start difference. First operand has 470 places, 1310 transitions, 22846 flow. Second operand 27 states and 4208 transitions. [2022-11-20 11:32:58,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 1939 transitions, 33856 flow [2022-11-20 11:33:01,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1939 transitions, 33745 flow, removed 32 selfloop flow, removed 10 redundant places. [2022-11-20 11:33:01,088 INFO L231 Difference]: Finished difference. Result has 496 places, 1433 transitions, 28422 flow [2022-11-20 11:33:01,089 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=22761, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=601, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=604, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=28422, PETRI_PLACES=496, PETRI_TRANSITIONS=1433} [2022-11-20 11:33:01,090 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 245 predicate places. [2022-11-20 11:33:01,090 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 1433 transitions, 28422 flow [2022-11-20 11:33:01,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:01,091 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:01,091 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] [2022-11-20 11:33:01,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:33:01,091 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)] === [2022-11-20 11:33:01,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:01,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1264847025, now seen corresponding path program 7 times [2022-11-20 11:33:01,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:01,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847324967] [2022-11-20 11:33:01,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:01,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:02,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:02,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847324967] [2022-11-20 11:33:02,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847324967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:02,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:02,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:33:02,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164025810] [2022-11-20 11:33:02,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:02,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:33:02,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:02,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:33:02,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:33:02,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-20 11:33:02,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 1433 transitions, 28422 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:02,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:02,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-20 11:33:02,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:33:17,523 INFO L130 PetriNetUnfolder]: 7468/25092 cut-off events. [2022-11-20 11:33:17,523 INFO L131 PetriNetUnfolder]: For 249680/250555 co-relation queries the response was YES. [2022-11-20 11:33:17,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121709 conditions, 25092 events. 7468/25092 cut-off events. For 249680/250555 co-relation queries the response was YES. Maximal size of possible extension queue 824. Compared 301252 event pairs, 1249 based on Foata normal form. 328/25110 useless extension candidates. Maximal degree in co-relation 121576. Up to 5138 conditions per place. [2022-11-20 11:33:18,062 INFO L137 encePairwiseOnDemand]: 211/248 looper letters, 1080 selfloop transitions, 846 changer transitions 7/2067 dead transitions. [2022-11-20 11:33:18,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 2067 transitions, 40276 flow [2022-11-20 11:33:18,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 11:33:18,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-11-20 11:33:18,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4950 transitions. [2022-11-20 11:33:18,071 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6237399193548387 [2022-11-20 11:33:18,072 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 4950 transitions. [2022-11-20 11:33:18,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 4950 transitions. [2022-11-20 11:33:18,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:33:18,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 4950 transitions. [2022-11-20 11:33:18,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 154.6875) internal successors, (4950), 32 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:18,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 248.0) internal successors, (8184), 33 states have internal predecessors, (8184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:18,355 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 248.0) internal successors, (8184), 33 states have internal predecessors, (8184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:18,356 INFO L175 Difference]: Start difference. First operand has 496 places, 1433 transitions, 28422 flow. Second operand 32 states and 4950 transitions. [2022-11-20 11:33:18,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 2067 transitions, 40276 flow [2022-11-20 11:33:22,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 2067 transitions, 40085 flow, removed 31 selfloop flow, removed 15 redundant places. [2022-11-20 11:33:22,665 INFO L231 Difference]: Finished difference. Result has 527 places, 1569 transitions, 35332 flow [2022-11-20 11:33:22,666 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=28240, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=711, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=628, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=35332, PETRI_PLACES=527, PETRI_TRANSITIONS=1569} [2022-11-20 11:33:22,667 INFO L288 CegarLoopForPetriNet]: 251 programPoint places, 276 predicate places. [2022-11-20 11:33:22,667 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 1569 transitions, 35332 flow [2022-11-20 11:33:22,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:22,667 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:33:22,668 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] [2022-11-20 11:33:22,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:33:22,668 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)] === [2022-11-20 11:33:22,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:22,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1286563, now seen corresponding path program 8 times [2022-11-20 11:33:22,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:22,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68936333] [2022-11-20 11:33:22,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:22,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:33:23,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:33:23,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:33:23,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68936333] [2022-11-20 11:33:23,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68936333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:33:23,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:33:23,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:33:23,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74312039] [2022-11-20 11:33:23,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:33:23,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:33:23,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:33:23,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:33:23,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:33:23,549 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 248 [2022-11-20 11:33:23,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 1569 transitions, 35332 flow. Second operand has 13 states, 13 states have (on average 142.76923076923077) internal successors, (1856), 13 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:33:23,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:33:23,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 248 [2022-11-20 11:33:23,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand